题解 | #小乐乐算多少人被请家长#

#include<stdio.h>
int main()
{
    int n;
    int i=0;int j;
    int subject;
    int count=0;
    scanf("%d",&n);int t;
    for(i=0;i<n;i++)
    {
        int sum=0;
        float average=0.0;
        for(j=0;j<3;j++)
        {
             scanf("%d",&subject);
             sum+=subject;
        } average=1.0*sum/3;
         if(average<60)
        count++;
    }printf("%d",count);
    return 0;
}