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Submission #3993947

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```#include <iostream>
#include <cstring>
#include <algorithm>
#include <vector>
#include <array>
#include <list>
#include <set>
#include <map>
#include <cmath>
using namespace std;

#define rep(i, n) for(int i = 0; i < (int)(n); i++);

typedef long long ll;

template<class T>bool chmax(T &a, const T &b) {if (a < b) {a = b; return 1;} return 0;}
template<class T>bool chmin(T &a, const T &b) {if (b < a) {a = b; return 1;} return 0;}

ll n;

int main() {
cin >> n;

ll xc[n], yc[n];
float result = 0;
float ans[n * (n - 1) / 2];

for (int i = 0; i < n; i++)
cin >> xc[i] >> yc[i];

int cont = 0;
for (int x = 0; x < n; x++) {
for (int y = x + 1; y < n; y++) {
ans[cont] = sqrt(pow(abs(xc[x] - xc[y]), 2) + pow(abs(yc[x] - yc[y]), 2));
result = max(result, ans[cont]);
cont++;
}
}

cout << result;
}```

#### Submission Info

Submission Time 2019-01-13 04:01:38+0900 A - 2点間距離の最大値 ( The longest distance ) mi2 C++14 (GCC 5.4.1) 100 937 Byte AC 1 ms 256 KB

#### Judge Result

Set Name Score / Max Score Test Cases
All 100 / 100 00_max.txt, 00_sample_01.txt, 00_sample_02.txt, 00_sample_03.txt, 00_sample_04.txt, 00_sample_05.txt, 01_rnd_00.txt, 01_rnd_01.txt, 01_rnd_02.txt, 01_rnd_03.txt, 01_rnd_04.txt, 01_rnd_05.txt, 01_rnd_06.txt, 01_rnd_07.txt, 01_rnd_08.txt, 01_rnd_09.txt, 01_rnd_10.txt, 01_rnd_11.txt, 01_rnd_12.txt, 01_rnd_13.txt, 01_rnd_14.txt, 01_rnd_15.txt, 01_rnd_16.txt, 01_rnd_17.txt, 01_rnd_18.txt, 01_rnd_19.txt
Case Name Status Exec Time Memory
00_max.txt 1 ms 256 KB
00_sample_01.txt 1 ms 256 KB
00_sample_02.txt 1 ms 256 KB
00_sample_03.txt 1 ms 256 KB
00_sample_04.txt 1 ms 256 KB
00_sample_05.txt 1 ms 256 KB
01_rnd_00.txt 1 ms 256 KB
01_rnd_01.txt 1 ms 256 KB
01_rnd_02.txt 1 ms 256 KB
01_rnd_03.txt 1 ms 256 KB
01_rnd_04.txt 1 ms 256 KB
01_rnd_05.txt 1 ms 256 KB
01_rnd_06.txt 1 ms 256 KB
01_rnd_07.txt 1 ms 256 KB
01_rnd_08.txt 1 ms 256 KB
01_rnd_09.txt 1 ms 256 KB
01_rnd_10.txt 1 ms 256 KB
01_rnd_11.txt 1 ms 256 KB
01_rnd_12.txt 1 ms 256 KB
01_rnd_13.txt 1 ms 256 KB
01_rnd_14.txt 1 ms 256 KB
01_rnd_15.txt 1 ms 256 KB
01_rnd_16.txt 1 ms 256 KB
01_rnd_17.txt 1 ms 256 KB
01_rnd_18.txt 1 ms 256 KB
01_rnd_19.txt 1 ms 256 KB