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Submission #974622

# Submission time Handle Problem Language Result Execution time Memory
974622 2024-05-03T14:31:28 Z vjudge1 Star triangles (IZhO11_triangle) C++17
0 / 100
 2000 ms 4572 KB 
#include <bits/stdc++.h>
using namespace std;

pair <long long, long long> x[300001];
long long n, xi, yi, ans;

int main(){
	cin >> n;
	for (int i = 0; i < n; i++){
		cin >> x[i].first >> x[i].second;
	}
	sort(x, x+n);
	for (int i = 0; i < n; i++){
		xi = 0;
		yi = 0;
		for (int j = 0; j < n; j++){
			if(x[i].first == x[j].first && x[i].second == x[j].second){
				continue;
			} else {
				if (x[i].first == x[j].first){
					xi++;
				}
				if (x[i].second == x[j].second){
					yi++;
				}
			}
		}
		ans += xi * yi;
	}
	cout << ans << "\n";
	return 0;
}

Subtask #1
0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 444 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 444 KB Output is correct
11 Correct 2 ms 348 KB Output is correct
12 Correct 79 ms 504 KB Output is correct
13 Correct 80 ms 600 KB Output is correct
14 Correct 80 ms 604 KB Output is correct
15 Execution timed out 2066 ms 4572 KB Time limit exceeded
16 Halted 0 ms 0 KB -