oj.uz

Submission #552665

# Submission time Handle Problem Language Result Execution time Memory
552665 2022-04-23T14:03:23 Z KN200711 Star triangles (IZhO11_triangle) C++14
100 / 100
 546 ms 12232 KB 
# include <bits/stdc++.h>
# define ll long long
using namespace std;

int main() {
	int N;
	cin>>N;
	int X[N], Y[N];
	map<int, int> x, y;
	for(int i=0;i<N;i++) {
		cin>>X[i]>>Y[i];
		x[X[i]]++;
		y[Y[i]]++;
	}
	ll ans;
	ans = 0ll;
	for(int i=0;i<N;i++) {
		ans += (ll) (x[X[i]]-1ll) * (ll) (y[Y[i]] - 1ll);
	}
	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 1 ms 296 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 296 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 304 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 2 ms 312 KB Output is correct
12 Correct 12 ms 964 KB Output is correct
13 Correct 13 ms 1056 KB Output is correct
14 Correct 15 ms 1364 KB Output is correct
15 Correct 162 ms 6116 KB Output is correct
16 Correct 200 ms 6412 KB Output is correct
17 Correct 189 ms 6216 KB Output is correct
18 Correct 164 ms 6052 KB Output is correct
19 Correct 506 ms 11544 KB Output is correct
20 Correct 323 ms 9164 KB Output is correct
21 Correct 528 ms 12076 KB Output is correct
22 Correct 546 ms 12232 KB Output is correct