Submission #6311855


Source Code Expand

#include<bits/stdc++.h>
#define rep(i,a,b) for(int i=a;i<b;i++)
#define rrep(i,a,b) for(int i=a;i>=b;i--)
#define fore(i,a) for(auto &i:a)
#define all(x) (x).begin(),(x).end()
//#pragma GCC optimize ("-O3")
using namespace std; void _main(); int main() { cin.tie(0); ios::sync_with_stdio(false); _main(); }
typedef long long ll; const int inf = INT_MAX / 2; const ll infl = 1LL << 60;
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; }
//---------------------------------------------------------------------------------------------------
bool isSquare(ll n) {
	ll d = (ll)sqrt(n) - 1;
	while (d * d < n) ++d;
	return d * d == n;
}

/*---------------------------------------------------------------------------------------------------
            ∧_∧  
      ∧_∧  (´<_` )  Welcome to My Coding Space!
     ( ´_ゝ`) /  ⌒i     @hamayanhamayan
    /   \     | |     
    /   / ̄ ̄ ̄ ̄/  |  
  __(__ニつ/     _/ .| .|____  
     \/____/ (u ⊃  
---------------------------------------------------------------------------------------------------*/














int N, D, X[10][10];
//---------------------------------------------------------------------------------------------------
void _main() {
	cin >> N >> D;
	rep(i, 0, N) rep(d, 0, D) cin >> X[i][d];

	int ans = 0;
	rep(i, 0, N) rep(j, i + 1, N) {
		int dd = 0;
		rep(d, 0, D) dd += (X[i][d] - X[j][d]) * (X[i][d] - X[j][d]);
		if (isSquare(dd)) ans++;
	}
	cout << ans << endl;
}





Submission Info

Submission Time
Task B - Good Distance
User hamayanhamayan
Language C++14 (GCC 5.4.1)
Score 200
Code Size 1786 Byte
Status AC
Exec Time 1 ms
Memory 256 KiB

Judge Result

Set Name All Sample
Score / Max Score 200 / 200 0 / 0
Status
AC × 13
AC × 3
Set Name Test Cases
All sample_01, sample_02, sample_03, testcase_01, testcase_02, testcase_03, testcase_04, testcase_05, testcase_06, testcase_07, testcase_08, testcase_09, testcase_10
Sample sample_01, sample_02, sample_03
Case Name Status Exec Time Memory
sample_01 AC 1 ms 256 KiB
sample_02 AC 1 ms 256 KiB
sample_03 AC 1 ms 256 KiB
testcase_01 AC 1 ms 256 KiB
testcase_02 AC 1 ms 256 KiB
testcase_03 AC 1 ms 256 KiB
testcase_04 AC 1 ms 256 KiB
testcase_05 AC 1 ms 256 KiB
testcase_06 AC 1 ms 256 KiB
testcase_07 AC 1 ms 256 KiB
testcase_08 AC 1 ms 256 KiB
testcase_09 AC 1 ms 256 KiB
testcase_10 AC 1 ms 256 KiB