oj.uz

Submission #382266

# Submission time Handle Problem Language Result Execution time Memory
382266 2021-03-26T21:21:00 Z ritul_kr_singh Star triangles (IZhO11_triangle) C++17
100 / 100
 446 ms 9068 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define sp << " " <<
#define nl << "\n"

signed main(){
	cin.tie(0)->sync_with_stdio(0);
	map<int, int> x, y;
	int n; cin >> n;
	pair<int, int> a[n];
	for(auto &i : a) cin >> i.first >> i.second, ++x[i.first], ++y[i.second];
	int ans = 0;
	for(auto i : a) ans += (x[i.first]-1LL)*(y[i.second]-1LL);
	cout << ans;
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory 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 1 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 364 KB Output is correct
11 Correct 2 ms 364 KB Output is correct
12 Correct 8 ms 1132 KB Output is correct
13 Correct 7 ms 1132 KB Output is correct
14 Correct 12 ms 1516 KB Output is correct
15 Correct 147 ms 5868 KB Output is correct
16 Correct 153 ms 6124 KB Output is correct
17 Correct 126 ms 5740 KB Output is correct
18 Correct 123 ms 5740 KB Output is correct
19 Correct 340 ms 8812 KB Output is correct
20 Correct 255 ms 7532 KB Output is correct
21 Correct 446 ms 9068 KB Output is correct
22 Correct 376 ms 9068 KB Output is correct