답안 #318557

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
318557	2020-11-02T10:32:48 Z	sofapuden	별들과 삼각형 (IZhO11_triangle)	C++14	100 / 100	598 ms	12328 KB

triangle

#include <bits/stdc++.h>

using namespace std;

int main(){
	int n; cin >> n;
	map<int,int> X, Y;
	vector<pair<int,int>> v(n);
	for(auto &x : v){cin >> x.first >> x.second;X[x.first]++, Y[x.second]++;}
	long long ans = 0;
	for(int i = 0; i < n; ++i){
		ans+=(X[v[i].first]-1)*(Y[v[i].second]-1);
	}
	cout << ans << "\n";
}
		
	

Subtask #1

100.0 / 100.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	364 KB	Output is correct
2	Correct	1 ms	364 KB	Output is correct
3	Correct	1 ms	364 KB	Output is correct
4	Correct	0 ms	364 KB	Output is correct
5	Correct	1 ms	364 KB	Output is correct
6	Correct	1 ms	364 KB	Output is correct
7	Correct	1 ms	364 KB	Output is correct
8	Correct	1 ms	364 KB	Output is correct
9	Correct	1 ms	364 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	2 ms	492 KB	Output is correct
12	Correct	12 ms	1024 KB	Output is correct
13	Correct	13 ms	1132 KB	Output is correct
14	Correct	18 ms	1388 KB	Output is correct
15	Correct	193 ms	6244 KB	Output is correct
16	Correct	224 ms	6628 KB	Output is correct
17	Correct	202 ms	6248 KB	Output is correct
18	Correct	200 ms	6244 KB	Output is correct
19	Correct	552 ms	11748 KB	Output is correct
20	Correct	402 ms	9444 KB	Output is correct
21	Correct	597 ms	12264 KB	Output is correct
22	Correct	598 ms	12328 KB	Output is correct