pat-bl-1053

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pat-bl-1053

2017-01-22

坑：空置和可能空置是互斥的
计算一半以上那个用double类型比较方便

/** * pat-bl-1053 * 2017-01-22 * C version * Author: fengLian_s */#include<stdio.h>int main(){  freopen("in.txt", "r", stdin);  double n, e, d;  scanf("%lf %lf %lf", &n, &e, &d);  double cntNil = 0, cntMaybeNil = 0;  for(int i = 0;i < n;i++)  {    double k, tmp, tmpCnt = 0;//都用double是比较方便的    scanf("%lf", &k);    for(int j = 0;j < k;j++)//观察k天    {      scanf("%lf", &tmp);      //printf("tmp = %.1lf\n", tmp);      if(tmp < e)        tmpCnt++;    }    //printf("tmpCnt = %.0lf\n", tmpCnt);    if(tmpCnt > k/2)//出错：第一次写错了……    {      if(k > d)      {        //printf("nil: %d\n", i);        cntNil++;      }      else      {        //printf("maybenil: %d\n", i);        cntMaybeNil++;//坑：如果是空置，那么就不被包含在可能空置中了      }    }  }  printf("%.1lf%% %.1lf%%\n", cntMaybeNil/n*100, cntNil/n*100);}

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