//#define BITSET64BIT 1
#ifdef BITSET64BIT
#include <string>
#include <bits/functexcept.h>
#include <iosfwd>
#include <bits/cxxabi_forced.h>
#include <bits/functional_hash.h>
#pragma push_macro("__SIZEOF_LONG__")
#pragma push_macro("__cplusplus")
#define __SIZEOF_LONG__ __SIZEOF_LONG_LONG__
#define unsigned unsigned long
#define __cplusplus 201102L
#define __builtin_popcountl __builtin_popcountll
#define __builtin_ctzl __builtin_ctzll
#include <bitset>
#pragma pop_macro("__cplusplus")
#pragma pop_macro("__SIZEOF_LONG__")
#undef unsigned
#undef __builtin_popcountl
#undef __builtin_ctzl
#endif
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
using namespace __gnu_pbds;
// Optimization
/*
#pragma GCC optimize("Ofast,unroll-loops,no-stack-protector")
#pragma GCC target("avx,avx2,fma")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma comment(linker,"/stack:200000000")
*/
#define endl '\n'
// Shortcut
#define int long long
#define eb emplace_back
#define pb push_back
#define pob pop_back
#define upb upper_bound
#define lwb lower_bound
#define fi first
#define se second
#define For(i, l, r) for (int i = l; i < r; i++)
#define ForE(i, l, r) for (int i = l; i <= r; i++)
#define Ford(i, r, l) for (int i = r; i > l; i--)
#define FordE(i, r, l) for (int i = r; i >= l; i--)
#define Fora(i, a) for (auto i : a)
// I/O & Debug
#define PrintV(a) Fora(h13, a) cout << h13 << ' '; cout << endl;
#define PrintVl(a) Fora(h13, a) cout << h13 << endl;
#define PrintA(a, l, r) for (int h13 = l; h13 <= r; h13++) cout << a[h13] << ' '; cout << endl;
#define PrintAl(a, l, r) for (int h13 = l; h13 <= r; h13++) cout << a[h13] << endl;
#define Ptest(x) return cout << x, 0;
#define getl(s) getline(cin, s);
#define setpre(x) fixed << setprecision(x)
/*
#define debug(args...){ \\
string _sDEB = #args; \\
replace(_sDEB.begin(), _sDEB.end(), ',', ' '); \\
stringstream _ssDEB(_sDEB); \\
istream_iterator<string> _itDEB(_ssDEB); \\
DEB(_itDEB, args); \\
}
void DEB(istream_iterator<string> it) {}
template<typename T, typename... Args>
void DEB(istream_iterator<string> it, T a, Args... args){
cout << *it << " = " << a << endl;
DEB(++it, args...);
}
*/
// Functions
//#define isvowel(a) (a == 'a' || a == 'e' || a == 'i' || a == 'o' || a == 'u')
#define bend(a) a.begin(), a.end()
#define rbend(a) a.rbegin(), a.rend()
#define mset(a) memset(a, 0, sizeof(a))
#define mset1(a) memset(a, 1, sizeof(a))
#define msetn1(a) memset(a, -1, sizeof(a))
#define msetinf(a) memset(a, 0x3f, sizeof(a))
#define gcd __gcd
#define __builtin_popcount __builtin_popcountll
//mt19937 rando(chrono::steady_clock::now().time_since_epoch().count());
//int randt(int l, int r){ return (rando() % (r - l + 1) + l); }
// Data Structure
// Policy based data structures \\
Support find_by_order(int k): return an iterator to the k-th smallest element, \\
counting from 0 \\
order_of_key(int k): return the number of items strictly smaller than k \\
For ordered_multiset and ordered_multimap, lower_bound() and upper_bound() are swapped
template <typename T> using ordered_set =
tree <T, null_type, less <T>, rb_tree_tag, tree_order_statistics_node_update>;
template <typename Key, typename T> using ordered_map =
tree <Key, T, less <Key>, rb_tree_tag, tree_order_statistics_node_update>;
template <typename T> using ordered_multiset =
tree <T, null_type, less_equal <T>, rb_tree_tag, tree_order_statistics_node_update>;
template <typename Key, typename T> using ordered_multimap =
tree <Key, T, less_equal <Key>, rb_tree_tag, tree_order_statistics_node_update>;
#define y0 _y0_
#define y1 _y1_
#define div divi
typedef long long ll;
typedef long double ld;
typedef vector <int> vi;
typedef vector <ll> vll;
typedef vector <ld> vld;
typedef vector <string> vs;
typedef pair <int, int> pii;
typedef pair <ll, ll> pll;
typedef vector <vi > vvi;
typedef vector <vll > vvll;
typedef vector <pii > vpii;
typedef vector <pll > vpll;
const int N = 1e5 + 5;
int mod = 1e9 + 7, mod1 = 998244353, mod2 = 1e9 + 9, inf = 1e9 + 7;
ll infll = 1e18 + 7;
int n, ans;
pii a[N];
map <int, int> coorx, coory;
signed main(){
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
cin >> n;
ForE(i, 1, n){
cin >> a[i].fi >> a[i].se;
coorx[a[i].fi]++;
coory[a[i].se]++;
}
ForE(i, 1, n){
ans += (coorx[a[i].fi] - 1) * (coory[a[i].se] - 1);
}
cout << ans;
}
/*
==================================+
INPUT: |
------------------------------ |
------------------------------ |
==================================+
OUTPUT: |
------------------------------ |
------------------------------ |
==================================+
*/
Compilation message
triangle.cpp:100:1: warning: multi-line comment [-Wcomment]
100 | // Policy based data structures \\
| ^
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Correct |
0 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
384 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
1 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
384 KB |
Output is correct |
| 7 |
Correct |
1 ms |
384 KB |
Output is correct |
| 8 |
Correct |
1 ms |
384 KB |
Output is correct |
| 9 |
Correct |
1 ms |
384 KB |
Output is correct |
| 10 |
Correct |
1 ms |
416 KB |
Output is correct |
| 11 |
Correct |
1 ms |
384 KB |
Output is correct |
| 12 |
Correct |
7 ms |
1280 KB |
Output is correct |
| 13 |
Correct |
7 ms |
1280 KB |
Output is correct |
| 14 |
Correct |
11 ms |
1792 KB |
Output is correct |
| 15 |
Correct |
143 ms |
8024 KB |
Output is correct |
| 16 |
Incorrect |
90 ms |
8056 KB |
Output isn't correct |
| 17 |
Halted |
0 ms |
0 KB |
- |
