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Submission #476226

# Submission time Handle Problem Language Result Execution time Memory
476226 2021-09-25T12:47:07 Z kkk Star triangles (IZhO11_triangle) C++14
0 / 100
 3 ms 460 KB 
#include<cstring>
#include<iostream>
#define endl '\n'
using namespace std;
long long a[1000000], b[1000000], x[1000000], y[1000000], n, m;

int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    long long i,j, br=0;

    cin>>n;

    for(i=0;i<n;i++)
    {
        cin>>x[i]>>y[i];
        a[x[i]]++; b[y[i]]++;
    }

    for(i=0;i<n;i++)
    {
        br+=(a[x[i]]-1)*(b[y[i]]-1);
    }

    cout<<br<<endl;

}

Compilation message

triangle.cpp: In function 'int main()':
triangle.cpp:13:17: warning: unused variable 'j' [-Wunused-variable]
   13 |     long long i,j, br=0;
      |                 ^

Subtask #1
0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 332 KB Output is correct
2 Correct 0 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 1 ms 332 KB Output is correct
8 Correct 1 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 1 ms 460 KB Output is correct
11 Runtime error 3 ms 460 KB Execution killed with signal 11
12 Halted 0 ms 0 KB -