제출 #568811

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
568811	2022-05-26 08:27:01	_karan_gandhi	자매 도시 (APIO20_swap)	C++17	37 / 100	2095 ms	19860 KiB

swap

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#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define all(v) v.begin(), v.end()
#define endl '\n'
#define pl(var) " [" << #var << ": " << (var) << "] "
template<typename A, typename B> ostream& operator<<(ostream &cout, pair<A, B> const &p) { return cout << "[" << p.first << ", " << p.second << "]"; }
template<typename A> ostream& operator<<(ostream &cout, vector<A> const &v) { cout << "["; for(int i = 0; i < (int)v.size(); i++) {if (i) cout << ", "; cout << v[i];} return cout << "]";}
template<typename A, typename B> istream& operator>>(istream& cin, pair<A, B> &p) { cin >> p.first; return cin >> p.second; }
struct DSU { // Sorry UFDS
  vector<int> p, s, degree;
  vector<bool> swappable;
  int components;
  void init(int n) {
    p = vector<int>(n);
    iota(all(p), 0);
    s = vector<int>(n, 1);
    swappable = vector<bool>(n, 0);
    degree = vector<int>(n, 0);
    components = n;
  }
  int get(int x) {
    return p[x] = (p[x] == x ? x : get(p[x]));
  }
 
 
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• Subtask 2: 0 / 7
• Subtask 3: 17 / 17
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