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Submission #494469

# Submission time Handle Problem Language Result Execution time Memory
494469 2021-12-15T14:14:29 Z asiat Star triangles (IZhO11_triangle) C++14
0 / 100
 1 ms 204 KB 
#include <bits/stdc++.h>

#define int unsigned long long 

#define ff first

#define ss second

using namespace std;

main(){
	ios::sync_with_stdio(0), cin.tie(0);
	int n; cin >> n;
	vector <pair<int , int>> v;
	int t = n;
	while(t--){
		int x , y;
		cin >> x >> y;
		v.push_back({x , y});
	}
	int ans = 0;
	for (int i = 0; i < n; i++){
		for (int j = i + 1; j < n; j++){
			for (int k = i +1; k < n; k++){
				if((v[i].first != v[j].first and v[i].first !=
				v[k].first) or (v[i].second != v[j].second and v[i].second !=
				v[k].second))ans++;
			}
		}
	}
	cout << ans / 3<< endl;
	return 0;
}

Compilation message

triangle.cpp:11:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   11 | main(){
      | ^~~~

Subtask #1
0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Incorrect 1 ms 204 KB Output isn't correct
5 Halted 0 ms 0 KB -