제출 #502656

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
502656	2022-01-06 11:50:16	banterbry	Pilot (NOI19_pilot)	C++17	100 / 100	481 ms	56048 KiB

pilot

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#include <bits/stdc++.h>
using namespace std;
#define ll long long 
#define pb push_back
#define fi first
#define si second
#define ar array
typedef pair<int,int> pi;
#define debug(...) __f(#__VA_ARGS__, __VA_ARGS__)
template <typename Arg>
void __f(string name, Arg arg) {
  cerr << name << " = " << arg << endl;
}
template <typename Head, typename... Tail>
void __f(string names, Head head, Tail... tail) {
  string cur = "";
  for (auto ch: names){if(ch==','){break;}else{cur+=ch;}}
  string nxt = names.substr(cur.size()+2);
  cerr << cur << " = " << head << ", ";
  __f(nxt, tail...);
}
struct DSU {
    vector<int> e;
    DSU(int N) { e = vector<int>(N, -1); }
    int get(int x) { return e[x] < 0 ? x : e[x] = get(e[x]); }  
    bool same_set(int a, int b) { return get(a) == get(b); }    
    int size(int x) { return -e[get(x)]; }
    bool unite(int x, int y) {  // union by size
        x = get(x), y = get(y);
 
 
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