http://acm.hdu.edu.cn/downloads/CCPC2018-Hangzhou-ProblemSet.pdf
1 #include <stdio.h> 2 #include <string.h> 3 4 int a[1000005]; 5 6 int main() 7 { 8 int t, i, n, d, x; 9 scanf("%d", &t); 10 while(t--) 11 { 12 x = 0; 13 scanf("%d %d", &n, &d); 14 for(i=0; i<n; i++) 15 { 16 scanf("%d", &a[i]); 17 if(a[i]==1) x++; 18 } 19 if(d==1) 20 { 21 if(n%3==0&&x==n) printf("No\n"); 22 else printf("Yes\n"); 23 } 24 else 25 { 26 if((x==n&&n%3==1) || (x==n-1&&n%3==1) || (x==n-1&&n%3==0)) 27 printf("No\n"); 28 else printf("Yes\n"); 29 } 30 } 31 return 0; 32 }
原文地址:https://www.cnblogs.com/0xiaoyu/p/11730013.html
时间: 2024-10-13 07:43:22