题目描述

这个题题目比较难理解，而且题也挺不好做的。希望能为之后的题打下一个基础吧。

样例

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

int main()
{
    int n,a,A=0,c=0,r=0,f=0;
    string t;
    double x,y,z;
    cin>>n; 
    for(int i=1;i<=n;i++)
    {
        cin>>a>>t;
        A+=a;
        if(t=="C")c+=a;
        else if(t=="R")r+=a;
        else f+=a;
    }
    x=(double)c*100/A;
    y=(double)r*100/A;
    z=(double)f*100/A;

    cout<<"Total: "<<A<<" animals"<<endl;
    cout<<"Total coneys: "<<c<<endl;
    cout<<"Total rats: "<<r<<endl;
    cout<<"Total frogs: "<<f<<endl;
    cout<<fixed<<setprecision(2)<<"Percentage of coneys: "<<x<<" %"<<endl;
    cout<<fixed<<setprecision(2)<<"Percentage of rats: "<<y<<" %"<<endl;
    cout<<fixed<<setprecision(2)<<"Percentage of frogs: "<<z<<" %"<<endl; 
    return 0;
}