oj.uz

Submission #1020075

# Submission time Handle Problem Language Result Execution time Memory
1020075 2024-07-11T13:42:20 Z ajay Star triangles (IZhO11_triangle) C++17
100 / 100
 251 ms 12160 KB 
/* Ajay Jadhav */
 
#include <iostream>
#include <cstdio>
#include <algorithm>
#include <deque>
#include <vector>
#include <cstdlib>
#include <iomanip>
#include <cmath>
#include <queue>
#include <map>
#include <set>
#include <stack>
#include <ctime>
#include <string.h>
#include <climits>
#include <cstring>
using namespace std;
 
 
#define ll          long long
#define pb          push_back
#define pii         pair<int,int>
#define vi          vector<int>
#define vii         vector<pii>
#define mi          map<int,int>
#define mii         map<pii,int>
#define all(a)      (a).begin(),(a).end()
#define x           first
#define y           second
#define sz(x)       (int)x.size()
#define hell        1000000007
#define rep(i,a,b)  for(int i=a;i<b;i++)
#define endl        '\n'
 
 
 
void solve()
{
    int n, ans = 0;
    cin>>n;
    mi xs, ys;
    vii a(n);
    rep(i,0,n)
    {
    	cin >> a[i].x >> a[i].y;
    	xs[a[i].x]++;
    	ys[a[i].y]++;
    } 

    rep (i,0,n)
    {
    	int xc = xs[a[i].x] - 1;
    	int yc = ys[a[i].y] - 1;
    	ans += (xc * yc);
    }
    cout<<ans<<endl;
}
 
signed main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int t = 1;
    // cin>>t;
    while (t--)
    {
        solve();
    }
    return 0;
}

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 460 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 0 ms 348 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 5 ms 1112 KB Output is correct
13 Correct 4 ms 1164 KB Output is correct
14 Correct 8 ms 1496 KB Output is correct
15 Correct 86 ms 6144 KB Output is correct
16 Correct 94 ms 6480 KB Output is correct
17 Correct 83 ms 6088 KB Output is correct
18 Correct 84 ms 6228 KB Output is correct
19 Correct 229 ms 11604 KB Output is correct
20 Correct 167 ms 9296 KB Output is correct
21 Correct 246 ms 12160 KB Output is correct
22 Correct 251 ms 12116 KB Output is correct