题目描述

这个题会出精度问题,输出百分比时要先转换变量类型为double,否则输出0
还有输出%要用%%

样例

#include<iostream>
#include<string>
using namespace std;

int main()
{
    int n,a,A=0,ac=0,ar=0,af=0;
    string t;
    double x,y,z;
    cin>>n; 
    for(int i=1;i<=n;i++)
    {
        cin>>a>>t;
        A+=a;
        if(t=="C")ac+=a;
        else if(t=="R")ar+=a;
        else af+=a;
    }

    x=(double)ac*100/A;
    y=(double)ar*100/A;
    z=(double)af*100/A;

    printf("Total: %d animals\nTotal coneys: %d\nTotal rats: %d\nTotal frogs: %d\nPercentage of coneys: %.2lf %%\nPercentage of rats: %.2lf %%\nPercentage of frogs: %.2lf %%",A,ac,ar,af,x,y,z);
    return 0;
}