Submission #976472

#	Time	Username	Problem	Language	Result	Execution time	Memory
976472		vjudge1	Star triangles (IZhO11_triangle)	C++17	0 / 100	2016 ms	696 KiB

triangle

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int main()
{
    int n;
    cin >> n;
    int x[n], y[n];
    
    
    for (int i=0;i<n;i++) {
    	cin >> x[i] >> y[i];
	}
    int ans = 0;
    for (int i=0;i<n;i++) {
    	for (int j=i+1;j<n;j++) {
    		for (int k=j+1;k<n;k++) {
    			
    			if (x[i] == x[j] || x[i] == x[k] || x[k] == x[j]) {
    				if (y[i] == y[j] || y[i] == y[k] || y[k] == y[j]) {
    					ans++;
					}
				}
    			
    			
			}
		}
	}
    
    cout << ans;
    return 0;
}

• Subtask 1: 0 / 100