ADD file via upload

program1.c

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+//#include <stdio.h>
+//#include <time.h>
+//#include <stdlib.h>
+//
+//void printMatrix(int matrix[9][9]) {
+//    for (int i = 0; i < 9; i++) {
+//        if (i == 0 || i == 3 || i == 6) {
+//            printf("|-----------------------|\n");
+//        }
+//        for (int j = 0; j < 9; j++) {
+//            if (j == 0 || j == 3 || j == 6) {
+//                printf("| ");
+//            }
+//                printf("%d ", matrix[i][j]);
+//        }
+//        printf("|\n");
+//    }
+//    printf("|-----------------------|\n");
+//}
+//
+//int main() {
+//int board[9][9]={{5,3,4,6,7,8,9,1,2},
+//                {6,7,2,1,9,5,3,4,8},
+//                {1,9,8,3,4,2,5,6,7},
+//                {8,5,9,7,6,1,4,2,3},
+//                {4,2,6,8,5,3,7,9,1},
+//                {7,1,3,9,2,4,8,5,6},
+//                {9,6,1,5,3,7,2,8,4},
+//                {2,8,7,4,1,9,6,3,5},
+//                {3,4,5,2,8,6,1,7,9}};
+//printMatrix(board);
+//return 0;
+//
+//}
+//