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 an American flag in BMP format and writes it to stdout: 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
#include <stdio.h>
#include <stdlib.h>
#include <math.h>

typedef struct {
    unsigned char b, g, r;
} Pixel;

int main() {
    const int H = 130;          // Flag height
    const int W = (int)(H * 1.9); // Flag width
    const int stripe_height = H / 13;
    const int canton_height = 7 * stripe_height;
    const int canton_width = (int)(0.76 * H);

    // Initialize star matrix
    unsigned char **stars = (unsigned char **)malloc(canton_height * sizeof(unsigned char *));
    for (int y = 0; y < canton_height; y++) {
        stars[y] = (unsigned char *)calloc(canton_width, sizeof(unsigned char));
    }

    // Create star pattern
    for (int row = 0; row < 9; row++) {
        int num_stars = (row % 2 == 0) ? 6 : 5;
        double y_pos = (row + 0.5) * canton_height / 9.0;
        
        for (int i = 0; i < num_stars; i++) {
            double x_pos;
            if (num_stars == 6) {
                x_pos = (i + 0.5) * canton_width / 6.0;
            } else {
                x_pos = (i + 0.5) * canton_width / 5.0;
            }
            
            int sx = (int)round(x_pos);
            int sy = (int)round(y_pos);
            
            // Mark 3x3 area around star center
            for (int dy = -1; dy <= 1; dy++) {
                for (int dx = -1; dx <= 1; dx++) {
                    int x = sx + dx;
                    int y = sy + dy;
                    if (x >= 0 && x < canton_width && y >= 0 && y < canton_height) {
                        stars[y][x] = 1;
                    }
                }
            }
        }
    }

    // BMP headers
    const int padding = (4 - (W * 3) % 4) % 4;
    const int file_size = 54 + (W * 3 + padding) * H;

    unsigned char file_header[14] = {
        'B', 'M',                          // Signature
        (unsigned char)(file_size), (unsigned char)(file_size >> 8),
        (unsigned char)(file_size >> 16), (unsigned char)(file_size >> 24),
        0, 0, 0, 0,                        // Reserved
        54, 0, 0, 0                        // Data offset
    };

    unsigned char info_header[40] = {
        40, 0, 0, 0,                       // Info header size
        (unsigned char)(W), (unsigned char)(W >> 8),
        (unsigned char)(W >> 16), (unsigned char)(W >> 24),
        (unsigned char)(H), (unsigned char)(H >> 8),
        (unsigned char)(H >> 16), (unsigned char)(H >> 24),
        1, 0,                              // Planes
        24, 0,                             // Bits per pixel
        0, 0, 0, 0,                        // Compression
        0, 0, 0, 0,                        // Image size
        0, 0, 0, 0,                        // Pixels/meter
        0, 0, 0, 0,                        // Colors used
        0, 0, 0, 0                         // Important colors
    };

    fwrite(file_header, 1, 14, stdout);
    fwrite(info_header, 1, 40, stdout);

    // Generate pixel data
    for (int image_y = H - 1; image_y >= 0; image_y--) {
        for (int x = 0; x < W; x++) {
            Pixel p;
            
            if (x < canton_width && image_y < canton_height) {
                // Canton area
                if (stars[image_y][x]) {
                    // White star
                    p.r = p.g = p.b = 255;
                } else {
                    // Old Glory Blue
                    p.r = 10; p.g = 49; p.b = 97;
                }
            } else {
                // Stripes area
                int stripe = image_y / stripe_height;
                if (stripe % 2 == 0) {
                    // Old Glory Red
                    p.r = 179; p.g = 25; p.b = 66;
                } else {
                    // White
                    p.r = p.g = p.b = 255;
                }
            }
            fwrite(&p, 3, 1, stdout);
        }
        
        // Add row padding
        for (int p = 0; p < padding; p++) {
            fputc(0, stdout);
        }
    }

    // Cleanup
    for (int y = 0; y < canton_height; y++) {
        free(stars[y]);
    }
    free(stars);

    return 0;
}
This program: 1. Creates a flag with accurate proportions (1:1.9 aspect ratio) 2. Uses official US flag colors (Old Glory Red, White, and Blue) 3. Draws 50 stars in the canton using a 3x3 pixel pattern for each star 4. Generates proper BMP headers and pixel data 5. Writes the result directly to stdout To use it: 1. Compile with: `gcc -o flag flag.c -lm` 2. Run with: `./flag > american_flag.bmp` The resulting BMP file will show a properly proportioned American flag with: - 13 alternating red and white stripes - 50 white stars on a blue canton - Official US flag colors - Dimensions of 247x130 pixels (can be adjusted by changing the H constant) Note: The stars are represented as 3x3 white squares for visibility. For better star representations, you would need to implement more complex shape drawing logic.

Extract Code

I extracted the following code from that output: 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
#include <stdio.h>
#include <stdlib.h>
#include <math.h>

typedef struct {
    unsigned char b, g, r;
} Pixel;

int main() {
    const int H = 130;          // Flag height
    const int W = (int)(H * 1.9); // Flag width
    const int stripe_height = H / 13;
    const int canton_height = 7 * stripe_height;
    const int canton_width = (int)(0.76 * H);

    // Initialize star matrix
    unsigned char **stars = (unsigned char **)malloc(canton_height * sizeof(unsigned char *));
    for (int y = 0; y < canton_height; y++) {
        stars[y] = (unsigned char *)calloc(canton_width, sizeof(unsigned char));
    }

    // Create star pattern
    for (int row = 0; row < 9; row++) {
        int num_stars = (row % 2 == 0) ? 6 : 5;
        double y_pos = (row + 0.5) * canton_height / 9.0;
        
        for (int i = 0; i < num_stars; i++) {
            double x_pos;
            if (num_stars == 6) {
                x_pos = (i + 0.5) * canton_width / 6.0;
            } else {
                x_pos = (i + 0.5) * canton_width / 5.0;
            }
            
            int sx = (int)round(x_pos);
            int sy = (int)round(y_pos);
            
            // Mark 3x3 area around star center
            for (int dy = -1; dy <= 1; dy++) {
                for (int dx = -1; dx <= 1; dx++) {
                    int x = sx + dx;
                    int y = sy + dy;
                    if (x >= 0 && x < canton_width && y >= 0 && y < canton_height) {
                        stars[y][x] = 1;
                    }
                }
            }
        }
    }

    // BMP headers
    const int padding = (4 - (W * 3) % 4) % 4;
    const int file_size = 54 + (W * 3 + padding) * H;

    unsigned char file_header[14] = {
        'B', 'M',                          // Signature
        (unsigned char)(file_size), (unsigned char)(file_size >> 8),
        (unsigned char)(file_size >> 16), (unsigned char)(file_size >> 24),
        0, 0, 0, 0,                        // Reserved
        54, 0, 0, 0                        // Data offset
    };

    unsigned char info_header[40] = {
        40, 0, 0, 0,                       // Info header size
        (unsigned char)(W), (unsigned char)(W >> 8),
        (unsigned char)(W >> 16), (unsigned char)(W >> 24),
        (unsigned char)(H), (unsigned char)(H >> 8),
        (unsigned char)(H >> 16), (unsigned char)(H >> 24),
        1, 0,                              // Planes
        24, 0,                             // Bits per pixel
        0, 0, 0, 0,                        // Compression
        0, 0, 0, 0,                        // Image size
        0, 0, 0, 0,                        // Pixels/meter
        0, 0, 0, 0,                        // Colors used
        0, 0, 0, 0                         // Important colors
    };

    fwrite(file_header, 1, 14, stdout);
    fwrite(info_header, 1, 40, stdout);

    // Generate pixel data
    for (int image_y = H - 1; image_y >= 0; image_y--) {
        for (int x = 0; x < W; x++) {
            Pixel p;
            
            if (x < canton_width && image_y < canton_height) {
                // Canton area
                if (stars[image_y][x]) {
                    // White star
                    p.r = p.g = p.b = 255;
                } else {
                    // Old Glory Blue
                    p.r = 10; p.g = 49; p.b = 97;
                }
            } else {
                // Stripes area
                int stripe = image_y / stripe_height;
                if (stripe % 2 == 0) {
                    // Old Glory Red
                    p.r = 179; p.g = 25; p.b = 66;
                } else {
                    // White
                    p.r = p.g = p.b = 255;
                }
            }
            fwrite(&p, 3, 1, stdout);
        }
        
        // Add row padding
        for (int p = 0; p < padding; p++) {
            fputc(0, stdout);
        }
    }

    // Cleanup
    for (int y = 0; y < canton_height; y++) {
        free(stars[y]);
    }
    free(stars);

    return 0;
}

Run Code Interpreter

Running the following program: 

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
#include <stdio.h>
#include <stdlib.h>
#include <math.h>

typedef struct {
    unsigned char b, g, r;
} Pixel;

int main() {
    const int H = 130;          // Flag height
    const int W = (int)(H * 1.9); // Flag width
    const int stripe_height = H / 13;
    const int canton_height = 7 * stripe_height;
    const int canton_width = (int)(0.76 * H);

    // Initialize star matrix
    unsigned char **stars = (unsigned char **)malloc(canton_height * sizeof(unsigned char *));
    for (int y = 0; y < canton_height; y++) {
        stars[y] = (unsigned char *)calloc(canton_width, sizeof(unsigned char));
    }

    // Create star pattern
    for (int row = 0; row < 9; row++) {
        int num_stars = (row % 2 == 0) ? 6 : 5;
        double y_pos = (row + 0.5) * canton_height / 9.0;
        
        for (int i = 0; i < num_stars; i++) {
            double x_pos;
            if (num_stars == 6) {
                x_pos = (i + 0.5) * canton_width / 6.0;
            } else {
                x_pos = (i + 0.5) * canton_width / 5.0;
            }
            
            int sx = (int)round(x_pos);
            int sy = (int)round(y_pos);
            
            // Mark 3x3 area around star center
            for (int dy = -1; dy <= 1; dy++) {
                for (int dx = -1; dx <= 1; dx++) {
                    int x = sx + dx;
                    int y = sy + dy;
                    if (x >= 0 && x < canton_width && y >= 0 && y < canton_height) {
                        stars[y][x] = 1;
                    }
                }
            }
        }
    }

    // BMP headers
    const int padding = (4 - (W * 3) % 4) % 4;
    const int file_size = 54 + (W * 3 + padding) * H;

    unsigned char file_header[14] = {
        'B', 'M',                          // Signature
        (unsigned char)(file_size), (unsigned char)(file_size >> 8),
        (unsigned char)(file_size >> 16), (unsigned char)(file_size >> 24),
        0, 0, 0, 0,                        // Reserved
        54, 0, 0, 0                        // Data offset
    };

    unsigned char info_header[40] = {
        40, 0, 0, 0,                       // Info header size
        (unsigned char)(W), (unsigned char)(W >> 8),
        (unsigned char)(W >> 16), (unsigned char)(W >> 24),
        (unsigned char)(H), (unsigned char)(H >> 8),
        (unsigned char)(H >> 16), (unsigned char)(H >> 24),
        1, 0,                              // Planes
        24, 0,                             // Bits per pixel
        0, 0, 0, 0,                        // Compression
        0, 0, 0, 0,                        // Image size
        0, 0, 0, 0,                        // Pixels/meter
        0, 0, 0, 0,                        // Colors used
        0, 0, 0, 0                         // Important colors
    };

    fwrite(file_header, 1, 14, stdout);
    fwrite(info_header, 1, 40, stdout);

    // Generate pixel data
    for (int image_y = H - 1; image_y >= 0; image_y--) {
        for (int x = 0; x < W; x++) {
            Pixel p;
            
            if (x < canton_width && image_y < canton_height) {
                // Canton area
                if (stars[image_y][x]) {
                    // White star
                    p.r = p.g = p.b = 255;
                } else {
                    // Old Glory Blue
                    p.r = 10; p.g = 49; p.b = 97;
                }
            } else {
                // Stripes area
                int stripe = image_y / stripe_height;
                if (stripe % 2 == 0) {
                    // Old Glory Red
                    p.r = 179; p.g = 25; p.b = 66;
                } else {
                    // White
                    p.r = p.g = p.b = 255;
                }
            }
            fwrite(&p, 3, 1, stdout);
        }
        
        // Add row padding
        for (int p = 0; p < padding; p++) {
            fputc(0, stdout);
        }
    }

    // Cleanup
    for (int y = 0; y < canton_height; y++) {
        free(stars[y]);
    }
    free(stars);

    return 0;
}
And got the output:

LLM Generation

Query

What flag is shown in this image?

Output

This is the flag of 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