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48 lines
922 B
48 lines
922 B
#include <stdio.h>
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#include <time.h>
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#include <stdlib.h>
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#include <string.h>
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int used[10];
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void row(int row[]){
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int nums[3];
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int numcount=0;
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while(numcount < 3){
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int num=rand()%9+1;
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if(!used[num]){
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nums[numcount++]=num;
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used[num]=1;
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}
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}
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int i;
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for ( i=0;i < 3; i++) {
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int index;
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do{
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index=rand()%9;
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}while(row[index] != 0);
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row[index]=nums[i];
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}
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}
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int main(){
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int i,j;
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int a[10][10];
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srand((unsigned)time(NULL));
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for ( i = 0; i < 9; i++){
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for( j=0; j < 9; j++){
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a[i][j]=0;
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}
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if(i % 3 == 0)
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memset(used, 0, sizeof(used));
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row(a[i]);
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}
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for(i=0;i < 9;i++){
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for( j=0;j < 9;j++) {
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printf("%d ",a[i][j]);
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}
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printf("\n");
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}
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return 0;
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}
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