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为什么总是CE和TLE#include<stdio.h> #include<math.h> int i,n,k,x,y,t; int main() { while(scanf("%d",&n)&&n!=-1) { k=pow(3,n-1); for(i=0;i<k*k;i++) { for(x=i/k,y=i%k,t=n;--t&&(x%3+y%3)%2==0;x/=3,y/=3); { if(t==0)printf("X"); else printf(" "); if(i%k>=k-1)puts(""); //printf("%c%s",t?32:88,i%k<k-1?"":"\n"); } } puts("-"); } return 0; } Followed by: Post your reply here: |
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