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Submission #675752

# Submission time Handle Problem Language Result Execution time Memory
675752 2022-12-27T19:47:08 Z QwertyPi Star triangles (IZhO11_triangle) C++14
100 / 100
 458 ms 13348 KB 
#include <bits/stdc++.h>

using namespace std;

struct point{
	int x, y;
};

vector<point> P;

map<int, int> X, Y;
int main(){
	int n; cin >> n;
	for(int i = 0; i < n; i++){
		int x, y; cin >> x >> y;
		P.push_back({x, y});
		X[x]++; Y[y]++;
	}
	int ans = 0;
	for(int i = 0; i < n; i++){
		ans += (X[P[i].x] - 1) * (Y[P[i].y] - 1);
	}
	cout << ans << endl;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 304 KB Output is correct
5 Correct 0 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 10 ms 980 KB Output is correct
13 Correct 11 ms 952 KB Output is correct
14 Correct 15 ms 1364 KB Output is correct
15 Correct 150 ms 6060 KB Output is correct
16 Correct 170 ms 6336 KB Output is correct
17 Correct 184 ms 6160 KB Output is correct
18 Correct 149 ms 6080 KB Output is correct
19 Correct 430 ms 13316 KB Output is correct
20 Correct 305 ms 9200 KB Output is correct
21 Correct 458 ms 13348 KB Output is correct
22 Correct 451 ms 13240 KB Output is correct