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Submission #89293

# Submission time Handle Problem Language Result Execution time Memory
89293 2018-12-11T14:20:19 Z Erkhemkhuu Star triangles (IZhO11_triangle) C++17
100 / 100
 932 ms 38552 KB 
#include <bits/stdc++.h>
using namespace std;
int x[300005], y[300005];
map <int, int> cntx, cnty;
int main() {
	int n, i, ans;
	cin >> n;
	for(i = 0; i < n; i++) {
		cin >> x[i] >> y[i];
		cntx[x[i]]++;
		cnty[y[i]]++;
	}
	ans = 0;
	for(i = 0; i < n; i++)
		ans += (cntx[x[i]] - 1) * (cnty[y[i]] - 1);
	cout << ans << "\n";
	return 0;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 472 KB Output is correct
3 Correct 2 ms 472 KB Output is correct
4 Correct 2 ms 472 KB Output is correct
5 Correct 2 ms 472 KB Output is correct
6 Correct 2 ms 472 KB Output is correct
7 Correct 3 ms 636 KB Output is correct
8 Correct 2 ms 648 KB Output is correct
9 Correct 3 ms 680 KB Output is correct
10 Correct 3 ms 680 KB Output is correct
11 Correct 3 ms 680 KB Output is correct
12 Correct 16 ms 1256 KB Output is correct
13 Correct 17 ms 1568 KB Output is correct
14 Correct 24 ms 2164 KB Output is correct
15 Correct 255 ms 7008 KB Output is correct
16 Correct 277 ms 9524 KB Output is correct
17 Correct 310 ms 11608 KB Output is correct
18 Correct 309 ms 13736 KB Output is correct
19 Correct 856 ms 21396 KB Output is correct
20 Correct 639 ms 25016 KB Output is correct
21 Correct 932 ms 32256 KB Output is correct
22 Correct 901 ms 38552 KB Output is correct