Submission #3228426

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Source Code Expand

#include <iostream>
#include <vector>
#include <numeric>//accumulate(v.begin(), v.end(), 0);
#include <algorithm>//sort(v.begin(),v.end());
#include <string>//
#include <cmath>
#include <iomanip> //setprecision(2)
using namespace std;
#define ll long long
#define rep(i, n) for(int i = 0; i < (int)(n); i++)


double dist(pair<int,int> p1, pair<int,int> p2)
{
        return sqrt(pow(p1.first - p2.first, 2) + pow(p1.second - p2.second, 2));
}

int main()
{
        int N;
        double ans = -1;
        cin >> N;
        pair<int, int> p[N];
        for(int i=0; i <N; i++)
        {
                cin >> p[i].first >> p[i].second;
        }

        for(int i=0; i<N; i++) {
                for(int j=i+1; j<N; j++)
                {
                        ans = max(ans, dist(p[i], p[j]));
                }
        }


        cout << setprecision(10) << ans << endl;

        return 0;
}

Submission Info

Judge Result