求挑错

感激不尽

#include<bits/stdc++.h>
using namespace std;

double x,y,p,n,ans;

int main(){
    cin>>n;
    while(n--)
    {
        cin>>x>>y>>p;
        ans+=2*(sqrt(x*x+y*y))/50;
        ans+=1.5*p;
    }
    cout<<ceil(ans)<<endl;
    return 0;
}