oj.uz

Submission #888252

# Submission time Handle Problem Language Result Execution time Memory
888252 2023-12-16T16:40:56 Z kokoue Star triangles (IZhO11_triangle) C++14
100 / 100
 239 ms 10064 KB 
#include<bits/stdc++.h>
using namespace std;
struct point
{
    int x,y;
};
point p[300000];
//int x[100000],y[100000];
map<int,int> y,x;
int n;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin>>n;
    for(int i=0;i<n;i++)
    {
        cin>>p[i].x>>p[i].y;
        x[p[i].x]++;
        y[p[i].y]++;
    }
    int ans=0;
    for(int i=0;i<n;i++)
    {
        ans+=(x[p[i].x]-1)*(y[p[i].y]-1);
    }
    cout<<ans<<"\n";
}

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 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 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 1 ms 348 KB Output is correct
9 Correct 1 ms 344 KB Output is correct
10 Correct 1 ms 500 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 5 ms 1116 KB Output is correct
13 Correct 5 ms 1116 KB Output is correct
14 Correct 8 ms 1372 KB Output is correct
15 Correct 80 ms 6924 KB Output is correct
16 Correct 87 ms 6740 KB Output is correct
17 Correct 80 ms 6736 KB Output is correct
18 Correct 87 ms 7068 KB Output is correct
19 Correct 213 ms 9340 KB Output is correct
20 Correct 153 ms 8552 KB Output is correct
21 Correct 239 ms 10064 KB Output is correct
22 Correct 233 ms 9960 KB Output is correct