Submission #4509841

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Source Code Expand

#include <iostream>
#include <cmath>
#include <cstdio>
using namespace std;
int h[105];
int o[105];
int main(){
    long long n,i,j,a,b;
    double d=-1;
    cin>>n;
    for(i=1;i<=n;i++){
        cin>>a>>b;
        h[i]=a;
        o[i]=b;
    }
    for(i=1;i<=n;i++){
        for(j=i+1;j<=n;j++){
            if(sqrt((h[j]-h[i])*(h[j]-h[i])+(o[j]-o[i])*(o[j]-o[i]))>d){
                d=sqrt((h[j]-h[i])*(h[j]-h[i])+(o[j]-o[i])*(o[j]-o[i]));
            }
        }
    }
    printf("%.4f\n",d);
    return 0;
}

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