Submission #28400471

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Source Code Expand

#include<iostream>
#include <fstream>
#include<vector>
#include <cmath>
using namespace std;

int main(){

    int N, x, y;
    cin >> N;

    vector< pair<int, int> > array;
    for (int i=0; i<N; i++){
        cin >> x >> y;
        array.push_back(make_pair(x, y));
    }

    double dist, max_dist = 0;
    for (int i=0; i<N; i++){
        for (int j=i+1; j<N; j++){
            dist = pow(array[i].first - array[j].first, 2) + pow(array[i].second - array[j].second, 2);
            if (dist > max_dist) max_dist = dist;
        }
    }
    double a = sqrt(max_dist);
    cout << fixed << setprecision(10) << a << endl;
    return 0;
}

Submission Info

Judge Result