Initial Query
Write me a C program that emits a .bmp that's a depiction of an american flag to stdout.
LLM Generation
Query
Write me a C program that emits a .bmp that's a depiction of an american flag to stdout.
Output
Certainly! Here's a C program that generates a BMP file representing the American flag and writes it to stdout. This program creates a simplified version of the flag with 13 stripes and a blue field with white stars.
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112 | #include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#define WIDTH 900
#define HEIGHT 600
#define HEADER_SIZE 54
#define STAR_SIZE 20
// BMP header structure
typedef struct {
uint16_t type;
uint32_t size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset;
uint32_t dib_header_size;
int32_t width;
int32_t height;
uint16_t planes;
uint16_t bpp;
uint32_t compression;
uint32_t image_size;
int32_t x_resolution;
int32_t y_resolution;
uint32_t num_colors;
uint32_t important_colors;
} __attribute__((packed)) BMPHeader;
// Function to set a pixel color
void set_pixel(uint8_t *image, int x, int y, uint8_t r, uint8_t g, uint8_t b) {
int index = (y * WIDTH + x) * 3;
image[index] = b;
image[index + 1] = g;
image[index + 2] = r;
}
// Function to draw a star
void draw_star(uint8_t *image, int center_x, int center_y) {
for (int y = -STAR_SIZE/2; y < STAR_SIZE/2; y++) {
for (int x = -STAR_SIZE/2; x < STAR_SIZE/2; x++) {
if ((abs(x) + abs(y) < STAR_SIZE/2) || (abs(x*2) + abs(y*2) < STAR_SIZE)) {
set_pixel(image, center_x + x, center_y + y, 255, 255, 255);
}
}
}
}
int main() {
BMPHeader header = {
.type = 0x4D42,
.size = HEADER_SIZE + WIDTH * HEIGHT * 3,
.reserved1 = 0,
.reserved2 = 0,
.offset = HEADER_SIZE,
.dib_header_size = 40,
.width = WIDTH,
.height = -HEIGHT, // Negative for top-down image
.planes = 1,
.bpp = 24,
.compression = 0,
.image_size = WIDTH * HEIGHT * 3,
.x_resolution = 2835,
.y_resolution = 2835,
.num_colors = 0,
.important_colors = 0
};
uint8_t *image = calloc(WIDTH * HEIGHT * 3, 1);
if (!image) {
fprintf(stderr, "Memory allocation failed\n");
return 1;
}
// Draw stripes
for (int y = 0; y < HEIGHT; y++) {
uint8_t r = (y / (HEIGHT / 13)) % 2 == 0 ? 255 : 180;
uint8_t g = (y / (HEIGHT / 13)) % 2 == 0 ? 255 : 0;
uint8_t b = (y / (HEIGHT / 13)) % 2 == 0 ? 255 : 0;
for (int x = 0; x < WIDTH; x++) {
set_pixel(image, x, y, r, g, b);
}
}
// Draw blue field
for (int y = 0; y < HEIGHT * 7/13; y++) {
for (int x = 0; x < WIDTH * 2/5; x++) {
set_pixel(image, x, y, 0, 0, 128);
}
}
// Draw stars
for (int row = 0; row < 9; row++) {
for (int col = 0; col < 11; col++) {
if ((row % 2 == 0 && col % 2 == 0) || (row % 2 == 1 && col % 2 == 1)) {
int x = col * WIDTH / 22 + WIDTH / 44;
int y = row * HEIGHT / 18 + HEIGHT / 26;
draw_star(image, x, y);
}
}
}
// Write BMP header to stdout
fwrite(&header, sizeof(BMPHeader), 1, stdout);
// Write image data to stdout
fwrite(image, WIDTH * HEIGHT * 3, 1, stdout);
free(image);
return 0;
}
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To use this program:
1. Save the code to a file, e.g., `american_flag.c`.
2. Compile the program:
| gcc -o american_flag american_flag.c
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3. Run the program and redirect the output to a .bmp file:
| ./american_flag > american_flag.bmp
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This will create a 900x600 pixel BMP file named `american_flag.bmp` in the current directory. The flag has 13 stripes (7 red and 6 white) and a blue field with 50 white stars arranged in a grid pattern.
Note that this is a simplified representation of the American flag and may not conform to official specifications or proportions. The stars are represented by simple shapes rather than precise five-pointed stars.
Extract Code
I extracted the following code from that output:
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112 | #include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#define WIDTH 900
#define HEIGHT 600
#define HEADER_SIZE 54
#define STAR_SIZE 20
// BMP header structure
typedef struct {
uint16_t type;
uint32_t size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset;
uint32_t dib_header_size;
int32_t width;
int32_t height;
uint16_t planes;
uint16_t bpp;
uint32_t compression;
uint32_t image_size;
int32_t x_resolution;
int32_t y_resolution;
uint32_t num_colors;
uint32_t important_colors;
} __attribute__((packed)) BMPHeader;
// Function to set a pixel color
void set_pixel(uint8_t *image, int x, int y, uint8_t r, uint8_t g, uint8_t b) {
int index = (y * WIDTH + x) * 3;
image[index] = b;
image[index + 1] = g;
image[index + 2] = r;
}
// Function to draw a star
void draw_star(uint8_t *image, int center_x, int center_y) {
for (int y = -STAR_SIZE/2; y < STAR_SIZE/2; y++) {
for (int x = -STAR_SIZE/2; x < STAR_SIZE/2; x++) {
if ((abs(x) + abs(y) < STAR_SIZE/2) || (abs(x*2) + abs(y*2) < STAR_SIZE)) {
set_pixel(image, center_x + x, center_y + y, 255, 255, 255);
}
}
}
}
int main() {
BMPHeader header = {
.type = 0x4D42,
.size = HEADER_SIZE + WIDTH * HEIGHT * 3,
.reserved1 = 0,
.reserved2 = 0,
.offset = HEADER_SIZE,
.dib_header_size = 40,
.width = WIDTH,
.height = -HEIGHT, // Negative for top-down image
.planes = 1,
.bpp = 24,
.compression = 0,
.image_size = WIDTH * HEIGHT * 3,
.x_resolution = 2835,
.y_resolution = 2835,
.num_colors = 0,
.important_colors = 0
};
uint8_t *image = calloc(WIDTH * HEIGHT * 3, 1);
if (!image) {
fprintf(stderr, "Memory allocation failed\n");
return 1;
}
// Draw stripes
for (int y = 0; y < HEIGHT; y++) {
uint8_t r = (y / (HEIGHT / 13)) % 2 == 0 ? 255 : 180;
uint8_t g = (y / (HEIGHT / 13)) % 2 == 0 ? 255 : 0;
uint8_t b = (y / (HEIGHT / 13)) % 2 == 0 ? 255 : 0;
for (int x = 0; x < WIDTH; x++) {
set_pixel(image, x, y, r, g, b);
}
}
// Draw blue field
for (int y = 0; y < HEIGHT * 7/13; y++) {
for (int x = 0; x < WIDTH * 2/5; x++) {
set_pixel(image, x, y, 0, 0, 128);
}
}
// Draw stars
for (int row = 0; row < 9; row++) {
for (int col = 0; col < 11; col++) {
if ((row % 2 == 0 && col % 2 == 0) || (row % 2 == 1 && col % 2 == 1)) {
int x = col * WIDTH / 22 + WIDTH / 44;
int y = row * HEIGHT / 18 + HEIGHT / 26;
draw_star(image, x, y);
}
}
}
// Write BMP header to stdout
fwrite(&header, sizeof(BMPHeader), 1, stdout);
// Write image data to stdout
fwrite(image, WIDTH * HEIGHT * 3, 1, stdout);
free(image);
return 0;
}
|
Run Code Interpreter
Running the following program:
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112 | #include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#define WIDTH 900
#define HEIGHT 600
#define HEADER_SIZE 54
#define STAR_SIZE 20
// BMP header structure
typedef struct {
uint16_t type;
uint32_t size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset;
uint32_t dib_header_size;
int32_t width;
int32_t height;
uint16_t planes;
uint16_t bpp;
uint32_t compression;
uint32_t image_size;
int32_t x_resolution;
int32_t y_resolution;
uint32_t num_colors;
uint32_t important_colors;
} __attribute__((packed)) BMPHeader;
// Function to set a pixel color
void set_pixel(uint8_t *image, int x, int y, uint8_t r, uint8_t g, uint8_t b) {
int index = (y * WIDTH + x) * 3;
image[index] = b;
image[index + 1] = g;
image[index + 2] = r;
}
// Function to draw a star
void draw_star(uint8_t *image, int center_x, int center_y) {
for (int y = -STAR_SIZE/2; y < STAR_SIZE/2; y++) {
for (int x = -STAR_SIZE/2; x < STAR_SIZE/2; x++) {
if ((abs(x) + abs(y) < STAR_SIZE/2) || (abs(x*2) + abs(y*2) < STAR_SIZE)) {
set_pixel(image, center_x + x, center_y + y, 255, 255, 255);
}
}
}
}
int main() {
BMPHeader header = {
.type = 0x4D42,
.size = HEADER_SIZE + WIDTH * HEIGHT * 3,
.reserved1 = 0,
.reserved2 = 0,
.offset = HEADER_SIZE,
.dib_header_size = 40,
.width = WIDTH,
.height = -HEIGHT, // Negative for top-down image
.planes = 1,
.bpp = 24,
.compression = 0,
.image_size = WIDTH * HEIGHT * 3,
.x_resolution = 2835,
.y_resolution = 2835,
.num_colors = 0,
.important_colors = 0
};
uint8_t *image = calloc(WIDTH * HEIGHT * 3, 1);
if (!image) {
fprintf(stderr, "Memory allocation failed\n");
return 1;
}
// Draw stripes
for (int y = 0; y < HEIGHT; y++) {
uint8_t r = (y / (HEIGHT / 13)) % 2 == 0 ? 255 : 180;
uint8_t g = (y / (HEIGHT / 13)) % 2 == 0 ? 255 : 0;
uint8_t b = (y / (HEIGHT / 13)) % 2 == 0 ? 255 : 0;
for (int x = 0; x < WIDTH; x++) {
set_pixel(image, x, y, r, g, b);
}
}
// Draw blue field
for (int y = 0; y < HEIGHT * 7/13; y++) {
for (int x = 0; x < WIDTH * 2/5; x++) {
set_pixel(image, x, y, 0, 0, 128);
}
}
// Draw stars
for (int row = 0; row < 9; row++) {
for (int col = 0; col < 11; col++) {
if ((row % 2 == 0 && col % 2 == 0) || (row % 2 == 1 && col % 2 == 1)) {
int x = col * WIDTH / 22 + WIDTH / 44;
int y = row * HEIGHT / 18 + HEIGHT / 26;
draw_star(image, x, y);
}
}
}
// Write BMP header to stdout
fwrite(&header, sizeof(BMPHeader), 1, stdout);
// Write image data to stdout
fwrite(image, WIDTH * HEIGHT * 3, 1, stdout);
free(image);
return 0;
}
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And got the output:
LLM Generation
Query
What flag is shown in this image?
Output
The flag shown in the image is a modified version of the flag of the United States. The traditional flag of the United States features 50 stars arranged in a specific pattern on a blue field, representing the 50 states, and 13 horizontal stripes alternating red and white, representing the original 13 colonies. In this modified version, the stars have been replaced with diamond shapes.
Check if any of the following conditions are true:
Substring Evaluation
Testing if the previous output contains the string America: False
Substring Evaluation
Testing if the previous output contains the string USA: False
Substring Evaluation
Testing if the previous output contains the string United States: True
Final Answer: True
Initial Query
Write me a C program that emits a .bmp that's a depiction of an american flag to stdout.
LLM Generation
Query
Write me a C program that emits a .bmp that's a depiction of an american flag to stdout.
Output
Here's a C program that generates a BMP image of an American flag and writes it to stdout:
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118 | #include <stdio.h>
#include <stdint.h>
#include <string.h>
#define WIDTH 570
#define HEIGHT 300
#define STARS_WIDTH 228
#define STARS_HEIGHT 159
#define STRIPES 13
#define STAR_ROWS 9
#define STAR_COLS 11
// BMP header structure
#pragma pack(push, 1)
typedef struct {
uint16_t type;
uint32_t size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset;
uint32_t dib_header_size;
int32_t width_px;
int32_t height_px;
uint16_t num_planes;
uint16_t bits_per_pixel;
uint32_t compression;
uint32_t image_size_bytes;
int32_t x_resolution_ppm;
int32_t y_resolution_ppm;
uint32_t num_colors;
uint32_t important_colors;
} BMPHeader;
#pragma pack(pop)
// Function to write a pixel
void write_pixel(FILE* fp, uint8_t r, uint8_t g, uint8_t b) {
fputc(b, fp);
fputc(g, fp);
fputc(r, fp);
}
// Function to draw a star
void draw_star(uint8_t* image, int x, int y) {
for (int dy = -2; dy <= 2; dy++) {
for (int dx = -2; dx <= 2; dx++) {
if (abs(dx) + abs(dy) <= 2) {
int pos = (y + dy) * WIDTH * 3 + (x + dx) * 3;
image[pos] = image[pos + 1] = image[pos + 2] = 255;
}
}
}
}
int main() {
BMPHeader header = {
.type = 0x4D42,
.size = sizeof(BMPHeader) + WIDTH * HEIGHT * 3,
.reserved1 = 0,
.reserved2 = 0,
.offset = sizeof(BMPHeader),
.dib_header_size = 40,
.width_px = WIDTH,
.height_px = HEIGHT,
.num_planes = 1,
.bits_per_pixel = 24,
.compression = 0,
.image_size_bytes = WIDTH * HEIGHT * 3,
.x_resolution_ppm = 2835,
.y_resolution_ppm = 2835,
.num_colors = 0,
.important_colors = 0
};
uint8_t* image = calloc(WIDTH * HEIGHT * 3, 1);
// Draw stripes
for (int y = 0; y < HEIGHT; y++) {
uint8_t r = (y / (HEIGHT / STRIPES)) % 2 == 0 ? 178 : 255;
uint8_t g = (y / (HEIGHT / STRIPES)) % 2 == 0 ? 34 : 255;
uint8_t b = (y / (HEIGHT / STRIPES)) % 2 == 0 ? 52 : 255;
for (int x = 0; x < WIDTH; x++) {
int pos = y * WIDTH * 3 + x * 3;
image[pos] = b;
image[pos + 1] = g;
image[pos + 2] = r;
}
}
// Draw blue rectangle
for (int y = HEIGHT - 1; y >= HEIGHT - STARS_HEIGHT; y--) {
for (int x = 0; x < STARS_WIDTH; x++) {
int pos = y * WIDTH * 3 + x * 3;
image[pos] = 187;
image[pos + 1] = 19;
image[pos + 2] = 60;
}
}
// Draw stars
for (int row = 0; row < STAR_ROWS; row++) {
for (int col = 0; col < STAR_COLS; col++) {
if ((row % 2 == 0 && col < STAR_COLS) || (row % 2 == 1 && col < STAR_COLS - 1)) {
int x = col * (STARS_WIDTH / (STAR_COLS - 1)) + (row % 2 == 1 ? STARS_WIDTH / (STAR_COLS - 1) / 2 : 0);
int y = HEIGHT - STARS_HEIGHT + row * (STARS_HEIGHT / (STAR_ROWS - 1));
draw_star(image, x, y);
}
}
}
// Write the BMP to stdout
fwrite(&header, sizeof(header), 1, stdout);
for (int y = HEIGHT - 1; y >= 0; y--) {
fwrite(image + y * WIDTH * 3, 1, WIDTH * 3, stdout);
}
free(image);
return 0;
}
|
This program does the following:
1. It defines the dimensions of the flag and its components.
2. It creates a BMP header structure with the necessary information.
3. It allocates memory for the image data.
4. It draws the stripes of the flag.
5. It draws the blue rectangle in the top-left corner.
6. It draws the stars in the blue rectangle.
7. Finally, it writes the BMP header and image data to stdout.
To use this program, compile it and redirect the output to a file:
| gcc flag.c -o flag
./flag > american_flag.bmp
|
This will create a 570x300 pixel BMP image of the American flag. The dimensions and colors are approximations and can be adjusted for more accuracy if needed.
Note: This program writes raw binary data to stdout, so it's important to redirect the output to a file rather than displaying it in the terminal.
Extract Code
I extracted the following code from that output:
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119 | #include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#define WIDTH 570
#define HEIGHT 300
#define STARS_WIDTH 228
#define STARS_HEIGHT 159
#define STRIPES 13
#define STAR_ROWS 9
#define STAR_COLS 11
// BMP header structure
#pragma pack(push, 1)
typedef struct {
uint16_t type;
uint32_t size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset;
uint32_t dib_header_size;
int32_t width_px;
int32_t height_px;
uint16_t num_planes;
uint16_t bits_per_pixel;
uint32_t compression;
uint32_t image_size_bytes;
int32_t x_resolution_ppm;
int32_t y_resolution_ppm;
uint32_t num_colors;
uint32_t important_colors;
} BMPHeader;
#pragma pack(pop)
// Function to write a pixel
void write_pixel(FILE* fp, uint8_t r, uint8_t g, uint8_t b) {
fputc(b, fp);
fputc(g, fp);
fputc(r, fp);
}
// Function to draw a star
void draw_star(uint8_t* image, int x, int y) {
for (int dy = -2; dy <= 2; dy++) {
for (int dx = -2; dx <= 2; dx++) {
if (abs(dx) + abs(dy) <= 2) {
int pos = (y + dy) * WIDTH * 3 + (x + dx) * 3;
image[pos] = image[pos + 1] = image[pos + 2] = 255;
}
}
}
}
int main() {
BMPHeader header = {
.type = 0x4D42,
.size = sizeof(BMPHeader) + WIDTH * HEIGHT * 3,
.reserved1 = 0,
.reserved2 = 0,
.offset = sizeof(BMPHeader),
.dib_header_size = 40,
.width_px = WIDTH,
.height_px = HEIGHT,
.num_planes = 1,
.bits_per_pixel = 24,
.compression = 0,
.image_size_bytes = WIDTH * HEIGHT * 3,
.x_resolution_ppm = 2835,
.y_resolution_ppm = 2835,
.num_colors = 0,
.important_colors = 0
};
uint8_t* image = calloc(WIDTH * HEIGHT * 3, 1);
// Draw stripes
for (int y = 0; y < HEIGHT; y++) {
uint8_t r = (y / (HEIGHT / STRIPES)) % 2 == 0 ? 178 : 255;
uint8_t g = (y / (HEIGHT / STRIPES)) % 2 == 0 ? 34 : 255;
uint8_t b = (y / (HEIGHT / STRIPES)) % 2 == 0 ? 52 : 255;
for (int x = 0; x < WIDTH; x++) {
int pos = y * WIDTH * 3 + x * 3;
image[pos] = b;
image[pos + 1] = g;
image[pos + 2] = r;
}
}
// Draw blue rectangle
for (int y = HEIGHT - 1; y >= HEIGHT - STARS_HEIGHT; y--) {
for (int x = 0; x < STARS_WIDTH; x++) {
int pos = y * WIDTH * 3 + x * 3;
image[pos] = 187;
image[pos + 1] = 19;
image[pos + 2] = 60;
}
}
// Draw stars
for (int row = 0; row < STAR_ROWS; row++) {
for (int col = 0; col < STAR_COLS; col++) {
if ((row % 2 == 0 && col < STAR_COLS) || (row % 2 == 1 && col < STAR_COLS - 1)) {
int x = col * (STARS_WIDTH / (STAR_COLS - 1)) + (row % 2 == 1 ? STARS_WIDTH / (STAR_COLS - 1) / 2 : 0);
int y = HEIGHT - STARS_HEIGHT + row * (STARS_HEIGHT / (STAR_ROWS - 1));
draw_star(image, x, y);
}
}
}
// Write the BMP to stdout
fwrite(&header, sizeof(header), 1, stdout);
for (int y = HEIGHT - 1; y >= 0; y--) {
fwrite(image + y * WIDTH * 3, 1, WIDTH * 3, stdout);
}
free(image);
return 0;
}
|
Run Code Interpreter
Running the following program:
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119 | #include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stdlib.h>
#define WIDTH 570
#define HEIGHT 300
#define STARS_WIDTH 228
#define STARS_HEIGHT 159
#define STRIPES 13
#define STAR_ROWS 9
#define STAR_COLS 11
// BMP header structure
#pragma pack(push, 1)
typedef struct {
uint16_t type;
uint32_t size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset;
uint32_t dib_header_size;
int32_t width_px;
int32_t height_px;
uint16_t num_planes;
uint16_t bits_per_pixel;
uint32_t compression;
uint32_t image_size_bytes;
int32_t x_resolution_ppm;
int32_t y_resolution_ppm;
uint32_t num_colors;
uint32_t important_colors;
} BMPHeader;
#pragma pack(pop)
// Function to write a pixel
void write_pixel(FILE* fp, uint8_t r, uint8_t g, uint8_t b) {
fputc(b, fp);
fputc(g, fp);
fputc(r, fp);
}
// Function to draw a star
void draw_star(uint8_t* image, int x, int y) {
for (int dy = -2; dy <= 2; dy++) {
for (int dx = -2; dx <= 2; dx++) {
if (abs(dx) + abs(dy) <= 2) {
int pos = (y + dy) * WIDTH * 3 + (x + dx) * 3;
image[pos] = image[pos + 1] = image[pos + 2] = 255;
}
}
}
}
int main() {
BMPHeader header = {
.type = 0x4D42,
.size = sizeof(BMPHeader) + WIDTH * HEIGHT * 3,
.reserved1 = 0,
.reserved2 = 0,
.offset = sizeof(BMPHeader),
.dib_header_size = 40,
.width_px = WIDTH,
.height_px = HEIGHT,
.num_planes = 1,
.bits_per_pixel = 24,
.compression = 0,
.image_size_bytes = WIDTH * HEIGHT * 3,
.x_resolution_ppm = 2835,
.y_resolution_ppm = 2835,
.num_colors = 0,
.important_colors = 0
};
uint8_t* image = calloc(WIDTH * HEIGHT * 3, 1);
// Draw stripes
for (int y = 0; y < HEIGHT; y++) {
uint8_t r = (y / (HEIGHT / STRIPES)) % 2 == 0 ? 178 : 255;
uint8_t g = (y / (HEIGHT / STRIPES)) % 2 == 0 ? 34 : 255;
uint8_t b = (y / (HEIGHT / STRIPES)) % 2 == 0 ? 52 : 255;
for (int x = 0; x < WIDTH; x++) {
int pos = y * WIDTH * 3 + x * 3;
image[pos] = b;
image[pos + 1] = g;
image[pos + 2] = r;
}
}
// Draw blue rectangle
for (int y = HEIGHT - 1; y >= HEIGHT - STARS_HEIGHT; y--) {
for (int x = 0; x < STARS_WIDTH; x++) {
int pos = y * WIDTH * 3 + x * 3;
image[pos] = 187;
image[pos + 1] = 19;
image[pos + 2] = 60;
}
}
// Draw stars
for (int row = 0; row < STAR_ROWS; row++) {
for (int col = 0; col < STAR_COLS; col++) {
if ((row % 2 == 0 && col < STAR_COLS) || (row % 2 == 1 && col < STAR_COLS - 1)) {
int x = col * (STARS_WIDTH / (STAR_COLS - 1)) + (row % 2 == 1 ? STARS_WIDTH / (STAR_COLS - 1) / 2 : 0);
int y = HEIGHT - STARS_HEIGHT + row * (STARS_HEIGHT / (STAR_ROWS - 1));
draw_star(image, x, y);
}
}
}
// Write the BMP to stdout
fwrite(&header, sizeof(header), 1, stdout);
for (int y = HEIGHT - 1; y >= 0; y--) {
fwrite(image + y * WIDTH * 3, 1, WIDTH * 3, stdout);
}
free(image);
return 0;
}
|
And got the output:
b'BM\x1e\xd4\x07\x00\x00\x00\x00\x006\x00\x00\x00(\x00\x00\x00:\x02\x00\x00,\x01\x00\x00\x01\x00\x18\x00\x00\x00\x00\x00\xe8\xd3\x07\x00\x13\x0b\x00\x00\x13\x0b\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<\xbb\x13<4"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"\xb24"
LLM Generation
Query
What flag is shown in this image?
Output
image file is truncated (1112 bytes not processed)
Check if any of the following conditions are true:
Substring Evaluation
Testing if the previous output contains the string America: False
Substring Evaluation
Testing if the previous output contains the string USA: False
Substring Evaluation
Testing if the previous output contains the string United States: False
Final Answer: False
Initial Query
Write me a C program that emits a .bmp that's a depiction of an american flag to stdout.
LLM Generation
Query
Write me a C program that emits a .bmp that's a depiction of an american flag to stdout.
Output
Here's a C program that generates a BMP image of an American flag and writes it to stdout:
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79 | #include <stdio.h>
#include <stdint.h>
#include <string.h>
#define WIDTH 900
#define HEIGHT 600
// BMP header structure
#pragma pack(push, 1)
typedef struct {
uint16_t type;
uint32_t size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset;
uint32_t dib_header_size;
int32_t width_px;
int32_t height_px;
uint16_t num_planes;
uint16_t bits_per_pixel;
uint32_t compression;
uint32_t image_size_bytes;
int32_t x_resolution_ppm;
int32_t y_resolution_ppm;
uint32_t num_colors;
uint32_t important_colors;
} BMPHeader;
#pragma pack(pop)
void write_bmp_header(BMPHeader* header) {
header->type = 0x4D42; // BM
header->size = sizeof(BMPHeader) + WIDTH * HEIGHT * 3;
header->reserved1 = 0;
header->reserved2 = 0;
header->offset = sizeof(BMPHeader);
header->dib_header_size = 40;
header->width_px = WIDTH;
header->height_px = HEIGHT;
header->num_planes = 1;
header->bits_per_pixel = 24;
header->compression = 0;
header->image_size_bytes = WIDTH * HEIGHT * 3;
header->x_resolution_ppm = 2835;
header->y_resolution_ppm = 2835;
header->num_colors = 0;
header->important_colors = 0;
}
void write_pixel(FILE* stream, uint8_t r, uint8_t g, uint8_t b) {
fputc(b, stream);
fputc(g, stream);
fputc(r, stream);
}
int main() {
BMPHeader header;
write_bmp_header(&header);
// Write header to stdout
fwrite(&header, sizeof(BMPHeader), 1, stdout);
// Generate flag image
for (int y = HEIGHT - 1; y >= 0; y--) {
for (int x = 0; x < WIDTH; x++) {
if (x < WIDTH * 2/5 && y >= HEIGHT * 7/13) {
// Blue canton
write_pixel(stdout, 0, 40, 104);
} else if (y % (HEIGHT / 13) < HEIGHT / 26) {
// Red stripe
write_pixel(stdout, 191, 10, 48);
} else {
// White stripe
write_pixel(stdout, 255, 255, 255);
}
}
}
return 0;
}
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This program does the following:
1. We define the dimensions of the flag (900x600 pixels).
2. We create a `BMPHeader` structure to hold the BMP file header information.
3. The `write_bmp_header` function fills in the BMP header with appropriate values.
4. The `write_pixel` function writes a single pixel (RGB) to the output stream.
5. In the `main` function:
- We create and write the BMP header to stdout.
- We generate the flag image pixel by pixel:
- The blue canton (union) is in the top-left corner, taking up 2/5 of the width and 7/13 of the height.
- The stripes alternate between red and white, each taking 1/13 of the height.
6. The image data is written directly to stdout.
To use this program, compile it and redirect the output to a file:
| gcc flag.c -o flag
./flag > american_flag.bmp
|
This will create a BMP file named `american_flag.bmp` containing the American flag image. The flag will have 13 stripes (7 red and 6 white) and a blue canton in the top-left corner. Note that this is a simplified version and doesn't include the stars in the canton.
Extract Code
I extracted the following code from that output:
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79 | #include <stdio.h>
#include <stdint.h>
#include <string.h>
#define WIDTH 900
#define HEIGHT 600
// BMP header structure
#pragma pack(push, 1)
typedef struct {
uint16_t type;
uint32_t size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset;
uint32_t dib_header_size;
int32_t width_px;
int32_t height_px;
uint16_t num_planes;
uint16_t bits_per_pixel;
uint32_t compression;
uint32_t image_size_bytes;
int32_t x_resolution_ppm;
int32_t y_resolution_ppm;
uint32_t num_colors;
uint32_t important_colors;
} BMPHeader;
#pragma pack(pop)
void write_bmp_header(BMPHeader* header) {
header->type = 0x4D42; // BM
header->size = sizeof(BMPHeader) + WIDTH * HEIGHT * 3;
header->reserved1 = 0;
header->reserved2 = 0;
header->offset = sizeof(BMPHeader);
header->dib_header_size = 40;
header->width_px = WIDTH;
header->height_px = HEIGHT;
header->num_planes = 1;
header->bits_per_pixel = 24;
header->compression = 0;
header->image_size_bytes = WIDTH * HEIGHT * 3;
header->x_resolution_ppm = 2835;
header->y_resolution_ppm = 2835;
header->num_colors = 0;
header->important_colors = 0;
}
void write_pixel(FILE* stream, uint8_t r, uint8_t g, uint8_t b) {
fputc(b, stream);
fputc(g, stream);
fputc(r, stream);
}
int main() {
BMPHeader header;
write_bmp_header(&header);
// Write header to stdout
fwrite(&header, sizeof(BMPHeader), 1, stdout);
// Generate flag image
for (int y = HEIGHT - 1; y >= 0; y--) {
for (int x = 0; x < WIDTH; x++) {
if (x < WIDTH * 2/5 && y >= HEIGHT * 7/13) {
// Blue canton
write_pixel(stdout, 0, 40, 104);
} else if (y % (HEIGHT / 13) < HEIGHT / 26) {
// Red stripe
write_pixel(stdout, 191, 10, 48);
} else {
// White stripe
write_pixel(stdout, 255, 255, 255);
}
}
}
return 0;
}
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Run Code Interpreter
Running the following program:
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79 | #include <stdio.h>
#include <stdint.h>
#include <string.h>
#define WIDTH 900
#define HEIGHT 600
// BMP header structure
#pragma pack(push, 1)
typedef struct {
uint16_t type;
uint32_t size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset;
uint32_t dib_header_size;
int32_t width_px;
int32_t height_px;
uint16_t num_planes;
uint16_t bits_per_pixel;
uint32_t compression;
uint32_t image_size_bytes;
int32_t x_resolution_ppm;
int32_t y_resolution_ppm;
uint32_t num_colors;
uint32_t important_colors;
} BMPHeader;
#pragma pack(pop)
void write_bmp_header(BMPHeader* header) {
header->type = 0x4D42; // BM
header->size = sizeof(BMPHeader) + WIDTH * HEIGHT * 3;
header->reserved1 = 0;
header->reserved2 = 0;
header->offset = sizeof(BMPHeader);
header->dib_header_size = 40;
header->width_px = WIDTH;
header->height_px = HEIGHT;
header->num_planes = 1;
header->bits_per_pixel = 24;
header->compression = 0;
header->image_size_bytes = WIDTH * HEIGHT * 3;
header->x_resolution_ppm = 2835;
header->y_resolution_ppm = 2835;
header->num_colors = 0;
header->important_colors = 0;
}
void write_pixel(FILE* stream, uint8_t r, uint8_t g, uint8_t b) {
fputc(b, stream);
fputc(g, stream);
fputc(r, stream);
}
int main() {
BMPHeader header;
write_bmp_header(&header);
// Write header to stdout
fwrite(&header, sizeof(BMPHeader), 1, stdout);
// Generate flag image
for (int y = HEIGHT - 1; y >= 0; y--) {
for (int x = 0; x < WIDTH; x++) {
if (x < WIDTH * 2/5 && y >= HEIGHT * 7/13) {
// Blue canton
write_pixel(stdout, 0, 40, 104);
} else if (y % (HEIGHT / 13) < HEIGHT / 26) {
// Red stripe
write_pixel(stdout, 191, 10, 48);
} else {
// White stripe
write_pixel(stdout, 255, 255, 255);
}
}
}
return 0;
}
|
And got the output:
LLM Generation
Query
What flag is shown in this image?
Output
The flag shown in the image is the flag of Liberia. The flag features eleven horizontal stripes alternating red and white, with a blue square in the upper left corner. The blue square contains a single white star. The design is similar to the flag of the United States, reflecting Liberia's historical ties to the United States.
Check if any of the following conditions are true:
Substring Evaluation
Testing if the previous output contains the string America: False
Substring Evaluation
Testing if the previous output contains the string USA: False
Substring Evaluation
Testing if the previous output contains the string United States: True
Final Answer: True
Initial Query
Write me a C program that emits a .bmp that's a depiction of an american flag to stdout.
LLM Generation
Query
Write me a C program that emits a .bmp that's a depiction of an american flag to stdout.
Output
Here's a C program that generates a simple representation of the American flag as a BMP file and writes it to stdout:
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98 | #include <stdio.h>
#include <stdint.h>
#include <string.h>
#define WIDTH 912
#define HEIGHT 480
// BMP header structure
#pragma pack(push, 1)
typedef struct {
uint16_t type;
uint32_t size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset;
uint32_t dib_header_size;
int32_t width_px;
int32_t height_px;
uint16_t num_planes;
uint16_t bits_per_pixel;
uint32_t compression;
uint32_t image_size_bytes;
int32_t x_resolution_ppm;
int32_t y_resolution_ppm;
uint32_t num_colors;
uint32_t important_colors;
} BMPHeader;
#pragma pack(pop)
// Function to set a pixel color
void set_pixel(uint8_t* image, int x, int y, uint8_t r, uint8_t g, uint8_t b) {
int index = (y * WIDTH + x) * 3;
image[index] = b;
image[index + 1] = g;
image[index + 2] = r;
}
int main() {
BMPHeader header = {
.type = 0x4D42,
.size = sizeof(BMPHeader) + WIDTH * HEIGHT * 3,
.offset = sizeof(BMPHeader),
.dib_header_size = 40,
.width_px = WIDTH,
.height_px = HEIGHT,
.num_planes = 1,
.bits_per_pixel = 24,
.compression = 0,
.image_size_bytes = WIDTH * HEIGHT * 3,
.x_resolution_ppm = 2835,
.y_resolution_ppm = 2835,
.num_colors = 0,
.important_colors = 0
};
uint8_t* image = calloc(WIDTH * HEIGHT * 3, 1);
// Draw stripes
for (int y = 0; y < HEIGHT; y++) {
uint8_t r, g, b;
if (y % 74 < 37) {
r = 178; g = 34; b = 52; // Red stripe
} else {
r = 255; g = 255; b = 255; // White stripe
}
for (int x = 0; x < WIDTH; x++) {
set_pixel(image, x, y, r, g, b);
}
}
// Draw blue canton
for (int y = HEIGHT - 1; y >= HEIGHT - 259; y--) {
for (int x = 0; x < 364; x++) {
set_pixel(image, x, y, 60, 59, 110);
}
}
// Draw stars (simplified as white dots)
for (int row = 0; row < 9; row++) {
for (int col = 0; col < 11; col++) {
if (row % 2 == 0 && col == 10) continue;
int x = 16 + col * 30;
int y = HEIGHT - 14 - row * 28;
for (int dy = -2; dy <= 2; dy++) {
for (int dx = -2; dx <= 2; dx++) {
set_pixel(image, x + dx, y + dy, 255, 255, 255);
}
}
}
}
// Write BMP header and image data to stdout
fwrite(&header, sizeof(header), 1, stdout);
fwrite(image, WIDTH * HEIGHT * 3, 1, stdout);
free(image);
return 0;
}
|
This program does the following:
1. It defines the dimensions of the flag (912x480 pixels).
2. It creates a BMP header structure with the necessary information.
3. It allocates memory for the image data.
4. It draws the stripes of the flag (7 red and 6 white).
5. It draws the blue canton (union) in the upper-left corner.
6. It draws simplified stars as white dots in the correct pattern.
7. Finally, it writes the BMP header and image data to stdout.
To use this program:
1. Save it to a file, for example, `american_flag.c`.
2. Compile it with a C compiler, for example: `gcc american_flag.c -o american_flag`
3. Run the program and redirect the output to a file: `./american_flag > flag.bmp`
This will create a `flag.bmp` file containing the American flag image. The proportions and colors are approximated, and the stars are simplified, but it should give a recognizable representation of the American flag.
Note: This program writes binary data to stdout, so it's important to redirect the output to a file rather than displaying it in the terminal.
Extract Code
I extracted the following code from that output:
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98 | #include <stdio.h>
#include <stdint.h>
#include <string.h>
#define WIDTH 912
#define HEIGHT 480
// BMP header structure
#pragma pack(push, 1)
typedef struct {
uint16_t type;
uint32_t size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset;
uint32_t dib_header_size;
int32_t width_px;
int32_t height_px;
uint16_t num_planes;
uint16_t bits_per_pixel;
uint32_t compression;
uint32_t image_size_bytes;
int32_t x_resolution_ppm;
int32_t y_resolution_ppm;
uint32_t num_colors;
uint32_t important_colors;
} BMPHeader;
#pragma pack(pop)
// Function to set a pixel color
void set_pixel(uint8_t* image, int x, int y, uint8_t r, uint8_t g, uint8_t b) {
int index = (y * WIDTH + x) * 3;
image[index] = b;
image[index + 1] = g;
image[index + 2] = r;
}
int main() {
BMPHeader header = {
.type = 0x4D42,
.size = sizeof(BMPHeader) + WIDTH * HEIGHT * 3,
.offset = sizeof(BMPHeader),
.dib_header_size = 40,
.width_px = WIDTH,
.height_px = HEIGHT,
.num_planes = 1,
.bits_per_pixel = 24,
.compression = 0,
.image_size_bytes = WIDTH * HEIGHT * 3,
.x_resolution_ppm = 2835,
.y_resolution_ppm = 2835,
.num_colors = 0,
.important_colors = 0
};
uint8_t* image = calloc(WIDTH * HEIGHT * 3, 1);
// Draw stripes
for (int y = 0; y < HEIGHT; y++) {
uint8_t r, g, b;
if (y % 74 < 37) {
r = 178; g = 34; b = 52; // Red stripe
} else {
r = 255; g = 255; b = 255; // White stripe
}
for (int x = 0; x < WIDTH; x++) {
set_pixel(image, x, y, r, g, b);
}
}
// Draw blue canton
for (int y = HEIGHT - 1; y >= HEIGHT - 259; y--) {
for (int x = 0; x < 364; x++) {
set_pixel(image, x, y, 60, 59, 110);
}
}
// Draw stars (simplified as white dots)
for (int row = 0; row < 9; row++) {
for (int col = 0; col < 11; col++) {
if (row % 2 == 0 && col == 10) continue;
int x = 16 + col * 30;
int y = HEIGHT - 14 - row * 28;
for (int dy = -2; dy <= 2; dy++) {
for (int dx = -2; dx <= 2; dx++) {
set_pixel(image, x + dx, y + dy, 255, 255, 255);
}
}
}
}
// Write BMP header and image data to stdout
fwrite(&header, sizeof(header), 1, stdout);
fwrite(image, WIDTH * HEIGHT * 3, 1, stdout);
free(image);
return 0;
}
|
Run Code Interpreter
Running the following program:
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98 | #include <stdio.h>
#include <stdint.h>
#include <string.h>
#define WIDTH 912
#define HEIGHT 480
// BMP header structure
#pragma pack(push, 1)
typedef struct {
uint16_t type;
uint32_t size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset;
uint32_t dib_header_size;
int32_t width_px;
int32_t height_px;
uint16_t num_planes;
uint16_t bits_per_pixel;
uint32_t compression;
uint32_t image_size_bytes;
int32_t x_resolution_ppm;
int32_t y_resolution_ppm;
uint32_t num_colors;
uint32_t important_colors;
} BMPHeader;
#pragma pack(pop)
// Function to set a pixel color
void set_pixel(uint8_t* image, int x, int y, uint8_t r, uint8_t g, uint8_t b) {
int index = (y * WIDTH + x) * 3;
image[index] = b;
image[index + 1] = g;
image[index + 2] = r;
}
int main() {
BMPHeader header = {
.type = 0x4D42,
.size = sizeof(BMPHeader) + WIDTH * HEIGHT * 3,
.offset = sizeof(BMPHeader),
.dib_header_size = 40,
.width_px = WIDTH,
.height_px = HEIGHT,
.num_planes = 1,
.bits_per_pixel = 24,
.compression = 0,
.image_size_bytes = WIDTH * HEIGHT * 3,
.x_resolution_ppm = 2835,
.y_resolution_ppm = 2835,
.num_colors = 0,
.important_colors = 0
};
uint8_t* image = calloc(WIDTH * HEIGHT * 3, 1);
// Draw stripes
for (int y = 0; y < HEIGHT; y++) {
uint8_t r, g, b;
if (y % 74 < 37) {
r = 178; g = 34; b = 52; // Red stripe
} else {
r = 255; g = 255; b = 255; // White stripe
}
for (int x = 0; x < WIDTH; x++) {
set_pixel(image, x, y, r, g, b);
}
}
// Draw blue canton
for (int y = HEIGHT - 1; y >= HEIGHT - 259; y--) {
for (int x = 0; x < 364; x++) {
set_pixel(image, x, y, 60, 59, 110);
}
}
// Draw stars (simplified as white dots)
for (int row = 0; row < 9; row++) {
for (int col = 0; col < 11; col++) {
if (row % 2 == 0 && col == 10) continue;
int x = 16 + col * 30;
int y = HEIGHT - 14 - row * 28;
for (int dy = -2; dy <= 2; dy++) {
for (int dx = -2; dx <= 2; dx++) {
set_pixel(image, x + dx, y + dy, 255, 255, 255);
}
}
}
}
// Write BMP header and image data to stdout
fwrite(&header, sizeof(header), 1, stdout);
fwrite(image, WIDTH * HEIGHT * 3, 1, stdout);
free(image);
return 0;
}
|
And got the output:
LLM Generation
Query
What flag is shown in this image?
Output
The flag shown in the image is a modified version of the flag of the United States. The traditional flag of the United States features 50 stars in the blue field, representing the 50 states, arranged in nine rows of alternating five and six stars. The flag in the image, however, has a different arrangement of stars.
Check if any of the following conditions are true:
Substring Evaluation
Testing if the previous output contains the string America: False
Substring Evaluation
Testing if the previous output contains the string USA: False
Substring Evaluation
Testing if the previous output contains the string United States: True
Final Answer: True
Initial Query
Write me a C program that emits a .bmp that's a depiction of an american flag to stdout.
LLM Generation
Query
Write me a C program that emits a .bmp that's a depiction of an american flag to stdout.
Output
Here's a C program that generates a simple representation of the American flag as a BMP file and outputs it to stdout:
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87 | #include <stdio.h>
#include <stdint.h>
#include <string.h>
#define WIDTH 900
#define HEIGHT 600
// BMP file header
typedef struct {
uint16_t type;
uint32_t size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset;
} __attribute__((packed)) BMPHeader;
// BMP info header
typedef struct {
uint32_t size;
int32_t width;
int32_t height;
uint16_t planes;
uint16_t bitsPerPixel;
uint32_t compression;
uint32_t imageSize;
int32_t xPixelsPerMeter;
int32_t yPixelsPerMeter;
uint32_t colorsUsed;
uint32_t colorsImportant;
} __attribute__((packed)) BMPInfoHeader;
// RGB color
typedef struct {
uint8_t b;
uint8_t g;
uint8_t r;
} __attribute__((packed)) RGB;
// Function to set pixel color
void setPixel(RGB *image, int x, int y, RGB color) {
image[y * WIDTH + x] = color;
}
int main() {
BMPHeader header = {0x4D42, 54 + 3 * WIDTH * HEIGHT, 0, 0, 54};
BMPInfoHeader infoHeader = {40, WIDTH, HEIGHT, 1, 24, 0, 0, 2835, 2835, 0, 0};
RGB *image = calloc(WIDTH * HEIGHT, sizeof(RGB));
RGB red = {0, 0, 178};
RGB white = {255, 255, 255};
RGB blue = {178, 0, 0};
// Draw stripes
for (int y = 0; y < HEIGHT; y++) {
RGB color = (y / (HEIGHT / 13)) % 2 == 0 ? red : white;
for (int x = 0; x < WIDTH; x++) {
setPixel(image, x, y, color);
}
}
// Draw blue rectangle
for (int y = 0; y < HEIGHT * 7 / 13; y++) {
for (int x = 0; x < WIDTH * 2 / 5; x++) {
setPixel(image, x, y, blue);
}
}
// Draw stars (simplified as white dots)
for (int row = 0; row < 9; row++) {
for (int col = 0; col < 11; col++) {
if ((row % 2 == 0 && col % 2 == 0) || (row % 2 == 1 && col % 2 == 1)) {
int x = col * (WIDTH * 2 / 5) / 11 + (WIDTH * 2 / 5) / 22;
int y = row * (HEIGHT * 7 / 13) / 9 + (HEIGHT * 7 / 13) / 18;
setPixel(image, x, y, white);
}
}
}
// Write BMP headers and image data to stdout
fwrite(&header, sizeof(BMPHeader), 1, stdout);
fwrite(&infoHeader, sizeof(BMPInfoHeader), 1, stdout);
fwrite(image, sizeof(RGB), WIDTH * HEIGHT, stdout);
free(image);
return 0;
}
|
This program does the following:
1. It defines the necessary structures for BMP file format: `BMPHeader` and `BMPInfoHeader`.
2. It sets up the image dimensions (900x600 pixels).
3. The `setPixel` function is used to set individual pixel colors in the image buffer.
4. In the `main` function:
- It initializes the BMP headers.
- It creates an image buffer.
- It draws 13 alternating red and white stripes.
- It draws a blue rectangle in the top-left corner.
- It adds simplified white dots to represent stars (not perfectly accurate, but gives the idea).
5. Finally, it writes the BMP headers and image data to stdout.
To use this program:
1. Save it to a file, e.g., `american_flag.c`.
2. Compile it: `gcc american_flag.c -o american_flag`
3. Run it and redirect the output to a file: `./american_flag > flag.bmp`
This will create a `flag.bmp` file containing a simple representation of the American flag. Note that this is a basic representation and doesn't include precise measurements or star shapes, but it gives a general idea of the flag's appearance.
Extract Code
I extracted the following code from that output:
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87 | #include <stdio.h>
#include <stdint.h>
#include <string.h>
#define WIDTH 900
#define HEIGHT 600
// BMP file header
typedef struct {
uint16_t type;
uint32_t size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset;
} __attribute__((packed)) BMPHeader;
// BMP info header
typedef struct {
uint32_t size;
int32_t width;
int32_t height;
uint16_t planes;
uint16_t bitsPerPixel;
uint32_t compression;
uint32_t imageSize;
int32_t xPixelsPerMeter;
int32_t yPixelsPerMeter;
uint32_t colorsUsed;
uint32_t colorsImportant;
} __attribute__((packed)) BMPInfoHeader;
// RGB color
typedef struct {
uint8_t b;
uint8_t g;
uint8_t r;
} __attribute__((packed)) RGB;
// Function to set pixel color
void setPixel(RGB *image, int x, int y, RGB color) {
image[y * WIDTH + x] = color;
}
int main() {
BMPHeader header = {0x4D42, 54 + 3 * WIDTH * HEIGHT, 0, 0, 54};
BMPInfoHeader infoHeader = {40, WIDTH, HEIGHT, 1, 24, 0, 0, 2835, 2835, 0, 0};
RGB *image = calloc(WIDTH * HEIGHT, sizeof(RGB));
RGB red = {0, 0, 178};
RGB white = {255, 255, 255};
RGB blue = {178, 0, 0};
// Draw stripes
for (int y = 0; y < HEIGHT; y++) {
RGB color = (y / (HEIGHT / 13)) % 2 == 0 ? red : white;
for (int x = 0; x < WIDTH; x++) {
setPixel(image, x, y, color);
}
}
// Draw blue rectangle
for (int y = 0; y < HEIGHT * 7 / 13; y++) {
for (int x = 0; x < WIDTH * 2 / 5; x++) {
setPixel(image, x, y, blue);
}
}
// Draw stars (simplified as white dots)
for (int row = 0; row < 9; row++) {
for (int col = 0; col < 11; col++) {
if ((row % 2 == 0 && col % 2 == 0) || (row % 2 == 1 && col % 2 == 1)) {
int x = col * (WIDTH * 2 / 5) / 11 + (WIDTH * 2 / 5) / 22;
int y = row * (HEIGHT * 7 / 13) / 9 + (HEIGHT * 7 / 13) / 18;
setPixel(image, x, y, white);
}
}
}
// Write BMP headers and image data to stdout
fwrite(&header, sizeof(BMPHeader), 1, stdout);
fwrite(&infoHeader, sizeof(BMPInfoHeader), 1, stdout);
fwrite(image, sizeof(RGB), WIDTH * HEIGHT, stdout);
free(image);
return 0;
}
|
Run Code Interpreter
Running the following program:
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87 | #include <stdio.h>
#include <stdint.h>
#include <string.h>
#define WIDTH 900
#define HEIGHT 600
// BMP file header
typedef struct {
uint16_t type;
uint32_t size;
uint16_t reserved1;
uint16_t reserved2;
uint32_t offset;
} __attribute__((packed)) BMPHeader;
// BMP info header
typedef struct {
uint32_t size;
int32_t width;
int32_t height;
uint16_t planes;
uint16_t bitsPerPixel;
uint32_t compression;
uint32_t imageSize;
int32_t xPixelsPerMeter;
int32_t yPixelsPerMeter;
uint32_t colorsUsed;
uint32_t colorsImportant;
} __attribute__((packed)) BMPInfoHeader;
// RGB color
typedef struct {
uint8_t b;
uint8_t g;
uint8_t r;
} __attribute__((packed)) RGB;
// Function to set pixel color
void setPixel(RGB *image, int x, int y, RGB color) {
image[y * WIDTH + x] = color;
}
int main() {
BMPHeader header = {0x4D42, 54 + 3 * WIDTH * HEIGHT, 0, 0, 54};
BMPInfoHeader infoHeader = {40, WIDTH, HEIGHT, 1, 24, 0, 0, 2835, 2835, 0, 0};
RGB *image = calloc(WIDTH * HEIGHT, sizeof(RGB));
RGB red = {0, 0, 178};
RGB white = {255, 255, 255};
RGB blue = {178, 0, 0};
// Draw stripes
for (int y = 0; y < HEIGHT; y++) {
RGB color = (y / (HEIGHT / 13)) % 2 == 0 ? red : white;
for (int x = 0; x < WIDTH; x++) {
setPixel(image, x, y, color);
}
}
// Draw blue rectangle
for (int y = 0; y < HEIGHT * 7 / 13; y++) {
for (int x = 0; x < WIDTH * 2 / 5; x++) {
setPixel(image, x, y, blue);
}
}
// Draw stars (simplified as white dots)
for (int row = 0; row < 9; row++) {
for (int col = 0; col < 11; col++) {
if ((row % 2 == 0 && col % 2 == 0) || (row % 2 == 1 && col % 2 == 1)) {
int x = col * (WIDTH * 2 / 5) / 11 + (WIDTH * 2 / 5) / 22;
int y = row * (HEIGHT * 7 / 13) / 9 + (HEIGHT * 7 / 13) / 18;
setPixel(image, x, y, white);
}
}
}
// Write BMP headers and image data to stdout
fwrite(&header, sizeof(BMPHeader), 1, stdout);
fwrite(&infoHeader, sizeof(BMPInfoHeader), 1, stdout);
fwrite(image, sizeof(RGB), WIDTH * HEIGHT, stdout);
free(image);
return 0;
}
|
And got the output:
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
LLM Generation
Query
What flag is shown in this image?
Output
The image shows an upside-down version of the flag of the United States. The flag consists of 13 horizontal stripes alternating red and white, with a blue rectangle in the canton (top left corner) containing 50 small, white, five-pointed stars arranged in nine offset horizontal rows. In this image, the flag is displayed upside down, which is a signal of distress.
Check if any of the following conditions are true:
Substring Evaluation
Testing if the previous output contains the string America: False
Substring Evaluation
Testing if the previous output contains the string USA: False
Substring Evaluation
Testing if the previous output contains the string United States: True
Final Answer: True