From b1b63276e4016303fc36bf7a9b1cc9a2c2e64cc1 Mon Sep 17 00:00:00 2001
From: p7cx2jokr <2160925370@qq.com>
Date: Sun, 3 Nov 2024 19:32:55 +0800
Subject: [PATCH] ADD file via upload

---
 file2.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 file2.c

diff --git a/file2.c b/file2.c
new file mode 100644
index 0000000..6aad116
--- /dev/null
+++ b/file2.c
@@ -0,0 +1,72 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+void print(int board[9][9]){
+	printf("|-----------------------|\n");
+	int i,j;
+	for(i=0;i<9;i++){
+		printf("| ");
+		for(j=0;j<9;j++){
+			if(board[i][j]==0) printf(". ");
+			else printf("%d ",board[i][j]);
+			if(j%3==2) printf("| ");
+		}
+		printf("\n");
+		if(i%3==2){
+			printf("|-----------------------|\n");
+		}
+	}
+}
+
+void fill(int board[9][9]){
+	//每三行填充1~9
+	int i,start;
+	for(start=0;start<9;start+=3){
+		int used[10]={}; //记录1~9数是否重复
+	    //每行填充3个数
+		for(i=start;i<start+3;i++){
+	        int j=0; 
+	        while(j<3){
+	        	int num=rand()%9+1; //随机生成1~9之间的数 
+				//判断该数是否重复 
+				if(used[num]==0){ 
+	                used[num]=1; 
+	                board[i][j]=num;
+	                j++;
+	            }
+			}
+	    }		
+	}
+
+    //将每行的数打乱 
+	for(i=0;i<9;i++)
+	{
+		//随机选取三个位置放数 
+		int a,b,c;
+	    do{
+	    	a=rand()%9;
+	    	b=rand()%9;
+	    	c=rand()%9;
+		}while(a==b||a==c||b==c);
+		
+		//将该行第a,b,c个数分别与前三个数交换 
+		int t[3],j;
+		for(j=0;j<3;j++) t[j]=board[i][j];
+		for(j=0;j<3;j++) board[i][j]=0;
+		board[i][a]=t[0];
+		board[i][b]=t[1];
+		board[i][c]=t[2];
+	}
+}
+
+int main(){
+    srand(time(NULL));
+    
+    int board[9][9]={};
+    fill(board);
+    print(board);
+    
+    return 0;
+}
+