笨小熊

用getchar（）一个个从输入流取字符居然超时。

#include <cstdio>#include <cstring>#include <cmath>using namespace std;bool isPrime(int n){if(n<2)return false;for(int i = 2; i < (int)sqrt((double)n)+1; i++)if(n%i==0)return false;return true;}int main(){int n;scanf("%d",&n);while(n--){getchar();int A[26];char ch[100+10];memset(A, 0, 26*sizeof(int));scanf("%s",&ch);for(int i = 0; i < strlen(ch); i++){A[ch[i]-'a']++;}int max = 0, min = 1000;for(int i = 0; i < 26; i++){if(A[i]>max)max=A[i];if(A[i]<min&&A[i])min=A[i];}if(isPrime(max-min)){printf("Lucky Word\n%d\n",max-min);}else{printf("No Answer\n0\n");}}return 0;}