poj 2350 Above Average

//主要考察浮点数的处理！ #include<iostream>#include<cstdio>using namespace std;int scores[1010];int main(){    int tc, num, i, c;    double sum, average, ans;    cin >> tc;    while (tc--){          cin >> num;          sum = c = 0;          for (i = 0; i < num; i++){              cin >> scores[i];              sum += scores[i];          }          average = sum / num;          for (i = 0; i < num; i++)             if (scores[i] > average)                 c++;          ans = c * 1.0/ num;          ans *= 100;          printf("%0.3lf%%\n", ans);    }    system("pause");}