A binary 8x8 matrix is 'unholy' if there are no isolated 1s. A 1 is isolated if there isn't another 1 in any of the 4 direct cardinal directions. Write a C program that counts the total number of unholy 8x8 matricies.
A binary 8x8 matrix is 'unholy' if there are no isolated 1s. A 1 is isolated if there isn't another 1 in any of the 4 direct cardinal directions. Write a C program that counts the total number of unholy 8x8 matricies.
Here's a C program that counts the total number of unholy 8x8 binary matrices:
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 | #include <stdio.h> #define SIZE 8 int is_unholy(int mat[SIZE][SIZE]) { for (int i = 0; i < SIZE; i++) { for (int j = 0; j < SIZE; j++) { if (mat[i][j] == 1) { if ((i == 0 || mat[i - 1][j] == 0) && (j == 0 || mat[i][j - 1] == 0) && (i == SIZE - 1 || mat[i + 1][j] == 0) && (j == SIZE - 1 || mat[i][j + 1] == 0)) { return 0; } } } } return 1; } int count_unholy_matrices(int level, int mat[SIZE][SIZE]) { int count = 0; if (level == SIZE * SIZE) { if (is_unholy(mat)) { count = 1; } return count; } int i = level / SIZE; int j = level % SIZE; mat[i][j] = 0; count += count_unholy_matrices(level + 1, mat); mat[i][j] = 1; count += count_unholy_matrices(level + 1, mat); return count; } int main() { int mat[SIZE][SIZE] = {{0}}; int total_count = count_unholy_matrices(0, mat); printf("Total number of unholy 8x8 matrices: %d\n", total_count); return 0; } |
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 | #include <stdio.h> #define SIZE 8 int is_unholy(int mat[SIZE][SIZE]) { for (int i = 0; i < SIZE; i++) { for (int j = 0; j < SIZE; j++) { if (mat[i][j] == 1) { if ((i == 0 || mat[i - 1][j] == 0) && (j == 0 || mat[i][j - 1] == 0) && (i == SIZE - 1 || mat[i + 1][j] == 0) && (j == SIZE - 1 || mat[i][j + 1] == 0)) { return 0; } } } } return 1; } int count_unholy_matrices(int level, int mat[SIZE][SIZE]) { int count = 0; if (level == SIZE * SIZE) { if (is_unholy(mat)) { count = 1; } return count; } int i = level / SIZE; int j = level % SIZE; mat[i][j] = 0; count += count_unholy_matrices(level + 1, mat); mat[i][j] = 1; count += count_unholy_matrices(level + 1, mat); return count; } int main() { int mat[SIZE][SIZE] = {{0}}; int total_count = count_unholy_matrices(0, mat); printf("Total number of unholy 8x8 matrices: %d\n", total_count); return 0; } |
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 | #include <stdio.h> #define SIZE 8 int is_unholy(int mat[SIZE][SIZE]) { for (int i = 0; i < SIZE; i++) { for (int j = 0; j < SIZE; j++) { if (mat[i][j] == 1) { if ((i == 0 || mat[i - 1][j] == 0) && (j == 0 || mat[i][j - 1] == 0) && (i == SIZE - 1 || mat[i + 1][j] == 0) && (j == SIZE - 1 || mat[i][j + 1] == 0)) { return 0; } } } } return 1; } int count_unholy_matrices(int level, int mat[SIZE][SIZE]) { int count = 0; if (level == SIZE * SIZE) { if (is_unholy(mat)) { count = 1; } return count; } int i = level / SIZE; int j = level % SIZE; mat[i][j] = 0; count += count_unholy_matrices(level + 1, mat); mat[i][j] = 1; count += count_unholy_matrices(level + 1, mat); return count; } int main() { int mat[SIZE][SIZE] = {{0}}; int total_count = count_unholy_matrices(0, mat); printf("Total number of unholy 8x8 matrices: %d\n", total_count); return 0; } |
Timeout: function took too long to complete
Testing if the previous output contains the string 1121231537486377866
: False
A binary 8x8 matrix is 'unholy' if there are no isolated 1s. A 1 is isolated if there isn't another 1 in any of the 4 direct cardinal directions. Write a C program that counts the total number of unholy 8x8 matricies.
A binary 8x8 matrix is 'unholy' if there are no isolated 1s. A 1 is isolated if there isn't another 1 in any of the 4 direct cardinal directions. Write a C program that counts the total number of unholy 8x8 matricies.
Here's a C program that counts the total number of unholy 8x8 binary matrices:
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 | #include <stdio.h> #define SIZE 8 int is_unholy(int mat[SIZE][SIZE]) { for (int i = 0; i < SIZE; i++) { for (int j = 0; j < SIZE; j++) { if (mat[i][j] == 1) { if ((i == 0 || mat[i - 1][j] == 0) && (j == 0 || mat[i][j - 1] == 0) && (i == SIZE - 1 || mat[i + 1][j] == 0) && (j == SIZE - 1 || mat[i][j + 1] == 0)) { return 0; } } } } return 1; } int count_unholy_matrices() { int total = 0; int mat[SIZE][SIZE]; // Iterate through all 2^64 possible binary matrices for (int i = 0; i < (1 << (SIZE * SIZE)); i++) { // Convert integer to binary matrix representation for (int r = 0; r < SIZE; r++) { for (int c = 0; c < SIZE; c++) { mat[r][c] = (i & (1 << (r * SIZE + c))) ? 1 : 0); } } if (is_unholy(mat)) { total++; } } return total; } int main() { int total_unholy = count_unholy_matrices(); printf("Total number of unholy 8x8 matrices: %d\n", total_unholy); return 0; } |
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 | #include <stdio.h> #define SIZE 8 int is_unholy(int mat[SIZE][SIZE]) { for (int i = 0; i < SIZE; i++) { for (int j = 0; j < SIZE; j++) { if (mat[i][j] == 1) { if ((i == 0 || mat[i - 1][j] == 0) && (j == 0 || mat[i][j - 1] == 0) && (i == SIZE - 1 || mat[i + 1][j] == 0) && (j == SIZE - 1 || mat[i][j + 1] == 0)) { return 0; } } } } return 1; } int count_unholy_matrices() { int total = 0; int mat[SIZE][SIZE]; // Iterate through all 2^64 possible binary matrices for (int i = 0; i < (1 << (SIZE * SIZE)); i++) { // Convert integer to binary matrix representation for (int r = 0; r < SIZE; r++) { for (int c = 0; c < SIZE; c++) { mat[r][c] = (i & (1 << (r * SIZE + c))) ? 1 : 0); } } if (is_unholy(mat)) { total++; } } return total; } int main() { int total_unholy = count_unholy_matrices(); printf("Total number of unholy 8x8 matrices: %d\n", total_unholy); return 0; } |
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 | #include <stdio.h> #define SIZE 8 int is_unholy(int mat[SIZE][SIZE]) { for (int i = 0; i < SIZE; i++) { for (int j = 0; j < SIZE; j++) { if (mat[i][j] == 1) { if ((i == 0 || mat[i - 1][j] == 0) && (j == 0 || mat[i][j - 1] == 0) && (i == SIZE - 1 || mat[i + 1][j] == 0) && (j == SIZE - 1 || mat[i][j + 1] == 0)) { return 0; } } } } return 1; } int count_unholy_matrices() { int total = 0; int mat[SIZE][SIZE]; // Iterate through all 2^64 possible binary matrices for (int i = 0; i < (1 << (SIZE * SIZE)); i++) { // Convert integer to binary matrix representation for (int r = 0; r < SIZE; r++) { for (int c = 0; c < SIZE; c++) { mat[r][c] = (i & (1 << (r * SIZE + c))) ? 1 : 0); } } if (is_unholy(mat)) { total++; } } return total; } int main() { int total_unholy = count_unholy_matrices(); printf("Total number of unholy 8x8 matrices: %d\n", total_unholy); return 0; } |
main.c: In function 'count_unholy_matrices':
main.c:27:28: warning: left shift count >= width of type [-Wshift-count-overflow]
27 | for (int i = 0; i < (1 << (SIZE * SIZE)); i++) {
| ^~
main.c:31:64: error: expected ';' before ')' token
31 | mat[r][c] = (i & (1 << (r * SIZE + c))) ? 1 : 0);
| ^
| ;
main.c:31:64: error: expected statement before ')' token
main.sh: line 2: ./a.out: No such file or directory
Testing if the previous output contains the string 1121231537486377866
: False
A binary 8x8 matrix is 'unholy' if there are no isolated 1s. A 1 is isolated if there isn't another 1 in any of the 4 direct cardinal directions. Write a C program that counts the total number of unholy 8x8 matricies.
A binary 8x8 matrix is 'unholy' if there are no isolated 1s. A 1 is isolated if there isn't another 1 in any of the 4 direct cardinal directions. Write a C program that counts the total number of unholy 8x8 matricies.
Here is a C program that counts the total number of unholy 8x8 matrices. This program uses a recursive function to generate all possible 8x8 binary matrices and checks each one to see if it is unholy.
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 | #include <stdio.h> int is_unholy(int mat[8][8]); int count = 0; void generate_matrix(int i, int j, int mat[8][8]) { if (i == 8) { count += is_unholy(mat); return; } if (j == 8) { generate_matrix(i + 1, 0, mat); return; } mat[i][j] = 0; generate_matrix(i, j + 1, mat); mat[i][j] = 1; generate_matrix(i, j + 1, mat); } int is_isolated(int i, int j, int mat[8][8]) { if (i > 0 && mat[i - 1][j] == 1) return 0; if (i < 7 && mat[i + 1][j] == 1) return 0; if (j > 0 && mat[i][j - 1] == 1) return 0; if (j < 7 && mat[i][j + 1] == 1) return 0; return 1; } int is_unholy(int mat[8][8]) { for (int i = 0; i < 8; i++) { for (int j = 0; j < 8; j++) { if (mat[i][j] == 1 && is_isolated(i, j, mat)) return 0; } } return 1; } int main() { int mat[8][8] = {{0}}; generate_matrix(0, 0, mat); printf("Number of unholy 8x8 matrices: %d\n", count); return 0; } |
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 | #include <stdio.h> int is_unholy(int mat[8][8]); int count = 0; void generate_matrix(int i, int j, int mat[8][8]) { if (i == 8) { count += is_unholy(mat); return; } if (j == 8) { generate_matrix(i + 1, 0, mat); return; } mat[i][j] = 0; generate_matrix(i, j + 1, mat); mat[i][j] = 1; generate_matrix(i, j + 1, mat); } int is_isolated(int i, int j, int mat[8][8]) { if (i > 0 && mat[i - 1][j] == 1) return 0; if (i < 7 && mat[i + 1][j] == 1) return 0; if (j > 0 && mat[i][j - 1] == 1) return 0; if (j < 7 && mat[i][j + 1] == 1) return 0; return 1; } int is_unholy(int mat[8][8]) { for (int i = 0; i < 8; i++) { for (int j = 0; j < 8; j++) { if (mat[i][j] == 1 && is_isolated(i, j, mat)) return 0; } } return 1; } int main() { int mat[8][8] = {{0}}; generate_matrix(0, 0, mat); printf("Number of unholy 8x8 matrices: %d\n", count); return 0; } |
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 | #include <stdio.h> int is_unholy(int mat[8][8]); int count = 0; void generate_matrix(int i, int j, int mat[8][8]) { if (i == 8) { count += is_unholy(mat); return; } if (j == 8) { generate_matrix(i + 1, 0, mat); return; } mat[i][j] = 0; generate_matrix(i, j + 1, mat); mat[i][j] = 1; generate_matrix(i, j + 1, mat); } int is_isolated(int i, int j, int mat[8][8]) { if (i > 0 && mat[i - 1][j] == 1) return 0; if (i < 7 && mat[i + 1][j] == 1) return 0; if (j > 0 && mat[i][j - 1] == 1) return 0; if (j < 7 && mat[i][j + 1] == 1) return 0; return 1; } int is_unholy(int mat[8][8]) { for (int i = 0; i < 8; i++) { for (int j = 0; j < 8; j++) { if (mat[i][j] == 1 && is_isolated(i, j, mat)) return 0; } } return 1; } int main() { int mat[8][8] = {{0}}; generate_matrix(0, 0, mat); printf("Number of unholy 8x8 matrices: %d\n", count); return 0; } |
Timeout: function took too long to complete
Testing if the previous output contains the string 1121231537486377866
: False
A binary 8x8 matrix is 'unholy' if there are no isolated 1s. A 1 is isolated if there isn't another 1 in any of the 4 direct cardinal directions. Write a C program that counts the total number of unholy 8x8 matricies.
A binary 8x8 matrix is 'unholy' if there are no isolated 1s. A 1 is isolated if there isn't another 1 in any of the 4 direct cardinal directions. Write a C program that counts the total number of unholy 8x8 matricies.
Here's a C program that counts the total number of unholy 8x8 binary matrices. The program uses a recursive function to generate and check all possible matrices.
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 | #include <stdio.h> #define SIZE 8 int count = 0; void generate_matrix(int matrix[SIZE][SIZE], int row, int col) { if (row == SIZE) { count++; return; } if (col == SIZE) { generate_matrix(matrix, row + 1, 0); return; } matrix[row][col] = 0; generate_matrix(matrix, row, col + 1); matrix[row][col] = 1; if (row > 0 && matrix[row - 1][col] == 1) { generate_matrix(matrix, row, col + 1); } else if (col > 0 && matrix[row][col - 1] == 1) { generate_matrix(matrix, row, col + 1); } } int main() { int matrix[SIZE][SIZE] = {{0}}; generate_matrix(matrix, 0, 0); printf("The total number of unholy 8x8 matrices is: %d\n", count); return 0; } |
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 | #include <stdio.h> #define SIZE 8 int count = 0; void generate_matrix(int matrix[SIZE][SIZE], int row, int col) { if (row == SIZE) { count++; return; } if (col == SIZE) { generate_matrix(matrix, row + 1, 0); return; } matrix[row][col] = 0; generate_matrix(matrix, row, col + 1); matrix[row][col] = 1; if (row > 0 && matrix[row - 1][col] == 1) { generate_matrix(matrix, row, col + 1); } else if (col > 0 && matrix[row][col - 1] == 1) { generate_matrix(matrix, row, col + 1); } } int main() { int matrix[SIZE][SIZE] = {{0}}; generate_matrix(matrix, 0, 0); printf("The total number of unholy 8x8 matrices is: %d\n", count); return 0; } |
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 | #include <stdio.h> #define SIZE 8 int count = 0; void generate_matrix(int matrix[SIZE][SIZE], int row, int col) { if (row == SIZE) { count++; return; } if (col == SIZE) { generate_matrix(matrix, row + 1, 0); return; } matrix[row][col] = 0; generate_matrix(matrix, row, col + 1); matrix[row][col] = 1; if (row > 0 && matrix[row - 1][col] == 1) { generate_matrix(matrix, row, col + 1); } else if (col > 0 && matrix[row][col - 1] == 1) { generate_matrix(matrix, row, col + 1); } } int main() { int matrix[SIZE][SIZE] = {{0}}; generate_matrix(matrix, 0, 0); printf("The total number of unholy 8x8 matrices is: %d\n", count); return 0; } |
The total number of unholy 8x8 matrices is: 1
Testing if the previous output contains the string 1121231537486377866
: False
A binary 8x8 matrix is 'unholy' if there are no isolated 1s. A 1 is isolated if there isn't another 1 in any of the 4 direct cardinal directions. Write a C program that counts the total number of unholy 8x8 matricies.
A binary 8x8 matrix is 'unholy' if there are no isolated 1s. A 1 is isolated if there isn't another 1 in any of the 4 direct cardinal directions. Write a C program that counts the total number of unholy 8x8 matricies.
Here is a C program that counts the total number of unholy 8x8 matrices. This program uses recursion to generate all possible 8x8 matrices and then checks if they are unholy or not.
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 | #include <stdio.h> int is_unholy(int mat[8][8]); int count = 0; // global variable to store the total count void generate_matrix(int i, int j, int mat[8][8]) { if (i == 8) { count += is_unholy(mat); return; } if (j == 8) { generate_matrix(i + 1, 0, mat); return; } mat[i][j] = 0; generate_matrix(i, j + 1, mat); mat[i][j] = 1; generate_matrix(i, j + 1, mat); } int is_unholy(int mat[8][8]) { for (int i = 0; i < 8; i++) { for (int j = 0; j < 8; j++) { if (mat[i][j] == 1) { if ((i == 0 || mat[i - 1][j] == 0) && (i == 7 || mat[i + 1][j] == 0) && (j == 0 || mat[i][j - 1] == 0) && (j == 7 || mat[i][j + 1] == 0)) { return 0; } } } } return 1; } int main() { int mat[8][8]; generate_matrix(0, 0, mat); printf("Total number of unholy 8x8 matrices: %d\n", count); return 0; } |
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 | #include <stdio.h> int is_unholy(int mat[8][8]); int count = 0; // global variable to store the total count void generate_matrix(int i, int j, int mat[8][8]) { if (i == 8) { count += is_unholy(mat); return; } if (j == 8) { generate_matrix(i + 1, 0, mat); return; } mat[i][j] = 0; generate_matrix(i, j + 1, mat); mat[i][j] = 1; generate_matrix(i, j + 1, mat); } int is_unholy(int mat[8][8]) { for (int i = 0; i < 8; i++) { for (int j = 0; j < 8; j++) { if (mat[i][j] == 1) { if ((i == 0 || mat[i - 1][j] == 0) && (i == 7 || mat[i + 1][j] == 0) && (j == 0 || mat[i][j - 1] == 0) && (j == 7 || mat[i][j + 1] == 0)) { return 0; } } } } return 1; } int main() { int mat[8][8]; generate_matrix(0, 0, mat); printf("Total number of unholy 8x8 matrices: %d\n", count); return 0; } |
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 | #include <stdio.h> int is_unholy(int mat[8][8]); int count = 0; // global variable to store the total count void generate_matrix(int i, int j, int mat[8][8]) { if (i == 8) { count += is_unholy(mat); return; } if (j == 8) { generate_matrix(i + 1, 0, mat); return; } mat[i][j] = 0; generate_matrix(i, j + 1, mat); mat[i][j] = 1; generate_matrix(i, j + 1, mat); } int is_unholy(int mat[8][8]) { for (int i = 0; i < 8; i++) { for (int j = 0; j < 8; j++) { if (mat[i][j] == 1) { if ((i == 0 || mat[i - 1][j] == 0) && (i == 7 || mat[i + 1][j] == 0) && (j == 0 || mat[i][j - 1] == 0) && (j == 7 || mat[i][j + 1] == 0)) { return 0; } } } } return 1; } int main() { int mat[8][8]; generate_matrix(0, 0, mat); printf("Total number of unholy 8x8 matrices: %d\n", count); return 0; } |
Timeout: function took too long to complete
Testing if the previous output contains the string 1121231537486377866
: False