From 5405c53d3f9619825798d490bf2c61f129ad5fe2 Mon Sep 17 00:00:00 2001
From: pspithub5 <2964495625@qq.com>
Date: Tue, 12 Nov 2024 16:11:32 +0800
Subject: [PATCH] ADD file via upload

---
 program2.c | 123 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 123 insertions(+)
 create mode 100644 program2.c

diff --git a/program2.c b/program2.c
new file mode 100644
index 0000000..959f19c
--- /dev/null
+++ b/program2.c
@@ -0,0 +1,123 @@
+//#include <stdio.h>
+//#include <stdlib.h>
+//#include <time.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("| ");
+//            }
+//            if (matrix[i][j] == 0)
+//            {
+//                printf(". ");
+//            }
+//            else {
+//                printf("%d ", matrix[i][j]);
+//            }
+//        }
+//        printf("|\n");
+//    }
+//    printf("|-----------------------|\n");
+//}
+//
+//int isInRow(int matrix[9][9], int row, int num) {
+//    for (int i = 0; i < 9; i++) {
+//        if (matrix[row][i] == num) {
+//            return 1;
+//        }
+//    }
+//    return 0;
+//}
+//
+//int isInGroup(int matrix[9][9], int startRow, int startCol, int num) {
+//    for (int i = 0; i < 3; i++) {
+//        for (int j = 0; j < 3; j++) {
+//            if (matrix[startRow + i][startCol + j] == num) {
+//                return 1;
+//            }
+//        }
+//    }
+//    return 0;
+//}
+//
+//int main() {
+//    srand(time(NULL));
+//    int matrix[9][9] = { 0 };
+//    int numbers[9] = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
+//
+//    for (int group = 0; group < 3; group++) {
+//        int usedNumbers[9] = { 0 };
+//        for (int i = 0; i < 9; i++) {
+//            usedNumbers[i] = numbers[i];
+//        }
+//
+//        for (int i = 0; i < 9; i++) {
+//            int idx = rand() % (9 - i);
+//            int temp = usedNumbers[idx];
+//            usedNumbers[idx] = usedNumbers[8 - i];
+//            usedNumbers[8 - i] = temp;
+//        }
+//
+//        for (int row = 0; row < 3; row++) {
+//            int count = 0;
+//            while (count < 3) {
+//                int num;
+//                do {
+//                    int idx = rand() % 9;
+//                    num = usedNumbers[idx];
+//                } while (num == 0 || isInRow(matrix, group * 3 + row, num) || isInGroup(matrix, group * 3, 0, num));
+//
+//                int pos;
+//                do {
+//                    pos = rand() % 9;
+//                } while (matrix[group * 3 + row][pos] != 0);
+//
+//                matrix[group * 3 + row][pos] = num;
+//                count++;
+//            }
+//        }
+//    }
+//
+//    for (int row = 0; row < 9; row++) {
+//        int uniqueNumbers[9] = { 0 };
+//        int uniqueCount = 0;
+//        for (int i = 0; i < 9; i++) {
+//            if (matrix[row][i] != 0 && !uniqueNumbers[matrix[row][i] - 1]) {
+//                uniqueNumbers[matrix[row][i] - 1] = 1;
+//                uniqueCount++;
+//            }
+//        }
+//        if (uniqueCount > 3) {
+//            while (uniqueCount > 3) {
+//                int idx = rand() % 9;
+//                if (matrix[row][idx] != 0 && uniqueNumbers[matrix[row][idx] - 1]) {
+//                    matrix[row][idx] = 0;
+//                    uniqueCount--;
+//                }
+//            }
+//        }
+//        else if (uniqueCount < 3) {
+//            while (uniqueCount < 3) {
+//                int num;
+//                do {
+//                    num = rand() % 9 + 1;
+//                } while (uniqueNumbers[num - 1]);
+//                int idx;
+//                do {
+//                    idx = rand() % 9;
+//                } while (matrix[row][idx] != 0);
+//                matrix[row][idx] = num;
+//                uniqueNumbers[num - 1] = 1;
+//                uniqueCount++;
+//            }
+//        }
+//    }
+//
+//    printMatrix(matrix);
+//
+//    return 0;
+//}
\ No newline at end of file