답안 #975621

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
975621	2024-05-05T15:00:29 Z	vjudge1	별들과 삼각형 (IZhO11_triangle)	C++17	100 / 100	426 ms	8088 KB

triangle

#include<bits/stdc++.h>
using namespace std;

using ll = long long;

signed main() {
	int n;
	cin >> n;

	map<int, vector<int>> xx;
	map<int, ll> yy;

	for (int i = 0; i< n; i++) {
		int x, y;
		cin >> x >> y;
		xx[x].push_back(y);
		yy[y]++;
	}

	ll ans = 0;

	for (auto [x, v] : xx) {
		for (int y : v) {
			ans += (yy[y] - 1LL) * (ll) (v.size() - 1LL);		
		}
	}

	cout << ans << '\n';
}

Subtask #1

100.0 / 100.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	1 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	1 ms	348 KB	Output is correct
12	Correct	8 ms	1116 KB	Output is correct
13	Correct	9 ms	1336 KB	Output is correct
14	Correct	12 ms	1828 KB	Output is correct
15	Correct	127 ms	5716 KB	Output is correct
16	Correct	139 ms	5972 KB	Output is correct
17	Correct	125 ms	5716 KB	Output is correct
18	Correct	156 ms	5952 KB	Output is correct
19	Correct	396 ms	7856 KB	Output is correct
20	Correct	272 ms	7092 KB	Output is correct
21	Correct	409 ms	8088 KB	Output is correct
22	Correct	426 ms	8024 KB	Output is correct