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create.c

@@ -0,0 +1,60 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+
+
+void create(int board[9][9]);
+void output(int board[9][9]);
+
+
+int main(){
+    int board[9][9] = {0};
+    create(board);
+    output(board);
+    return 0;
+    
+}
+
+void shuffleArray(int array[], int size) {
+    for (int i = size - 1; i > 0; i--) {
+        int j = rand() % (i + 1);
+        int temp = array[i];
+        array[i] = array[j];
+        array[j] = temp;
+    }
+}
+
+
+void create(int board[9][9]){
+    srand(time(NULL)); 
+    int index = 0;
+    for (int r = 0; r < 9; r+=3){
+        int nums[9] = {1, 2, 3, 4, 5, 6, 7, 8, 9};
+        shuffleArray(nums, 9);
+        for (int i = r; i < r+3; i++) {
+            for (int j = 0; j < 9; j += 3) {
+                board[i][j] = nums[index++];
+                if (index >= 9) {
+                    index = 0;
+            }
+        }
+    }
+    }
+    for(int j = 0;j < 9;j++){
+       shuffleArray(board[j], 9);
+    }
+}
+
+
+void output(int board[9][9]){
+    int i;
+    for(i = 0;i < 9 ;i++){
+        if(i %3 == 0){
+            printf("|-----------------------|\n");
+        }
+        printf("| %d %d %d | %d %d %d | %d %d %d |\n",
+        board[i][0],board[i][1],board[i][2],board[i][3],board[i][4],board[i][5],board[i][6],board[i][7],board[i][8]);
+    }
+    printf("|-----------------------|\n");
+}