#include <bits/stdc++.h>
using namespace std;
int main()
{
    int kg;
    char c;
    cin>>kg>>c;
    int ans=8;
	if(kg>1000) ans+=ceil((kg-1000.0)/500.0)*4;
    if(c=='y')ans+=5;
    cout<<ans;
    return 0;
}

#include<iostream>
#include<cmath>
using namespace std;
int main(){
	int a;
	char c;
	cin >> a >> c;
	if (a<=1000)
	{
		if (c == 'y')
			cout << 8+5;
		if (c == 'n')
			cout << 8;
	}else{
		if (c == 'y')
			cout << ceil(1.0*a/500)*4+5;
		if (c == 'n')
			cout << ceil(1.0*a/500)*4;
	}
	return 0;
}

变量名勿喷

#include<iostream>
using namespace std;
int a,ccf=8;
char qwq;
int main()
{
    cin>>a>>qwq;
    if(a>1000)
    {
        a=a-1000;ccf=ccf+(a/500)*4;
        if(a%500!=0) 
            ccf=ccf+4;
    }
    if(qwq=='y') 
        ccf=ccf+5;
    cout<<ccf<<endl;
    return 0;
}

https://www.luogu.com.cn/record/66164733