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唉,谁能告诉我为什么wa了??快吐血了~~~测试数据都对,连最大那个质数都对,为什么就是wa了?? #include<stdio.h> #include<math.h> int prime(n) {int k,i; if(n>10000) k=(int)(sqrt(n/10000)*100); else k=(int)sqrt(n); for(i=2;i<=k;i++) if(n%i==0) break; if(i>k) return 1; else return 0; } void main() {int n,t,s; while(scanf("%d",&n)) {if(n==0) break; if(prime(n)) printf("0\n"); else {for(t=n-1;;t--) if(prime(t)) break; for(s=n+1;;s++) if(prime(s)) break; printf("%d\n",s-t); } } } Followed by:
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