kds/2.cpp

#include <stdio.h>
#include<time.h>
#include<stdlib.h>
int main()
{
	srand(time(NULL));
	int r,c,time;
	int board[9][9];
	for(r=0;r<9;r++)
     for(c=0;c<9;c++)
      board[r][c]=0;
      
    for(time=0;time<3;time++)	 
   {  
    	int shu[9]={1,2,3,4,5,6,7,8,9},number[9];
    	int i,index;
    	for(i=0;i<9;i++)
      {
    	index=rand()%(9-i);
      	*(number+i)=*(shu+index);
      	for(;index<8-i;index++)
  	     *(shu+index)=*(shu+index+1);
      }
		for(r=3*time;r<3*time+3;r++)
   	  { 
			int place1,place2,place3;
    	    do
    	  {
    		place1=rand()%9;
    		place2=rand()%9;
    		place3=rand()%9;
		  }
    		while(place1==place2||place1==place3||place2==place3);
    		board[r][place1]=number[r%3*3];
    		board[r][place2]=number[r%3*3+1];
    		board[r][place3]=number[r%3*3+2];  
      }
   } 
   
	for(int i=0;i<9;i++){
		if(i%3==0){
			printf("|-----------------|");
			printf("\n");
		}
		for(int j=0;j<9;j++){
			if(j%3==0){
				printf("|");
			}
		    printf("%d",board[i][j]);
		    if((j+1)%3!=0){
		    	printf(" ");
			}
		    if(j==8){
		    	printf("|");
			}
	    }
	    printf("\n");
    }
    printf("|-----------------|");
	printf("\n");
}