Submission #376884

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
376884	2021-03-12 06:05:56	casperwang	Mergers (JOI19_mergers)	C++14	48 / 100	3083 ms	30852 KiB

mergers

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#include <bits/stdc++.h>
#define pb emplace_back
using namespace std;
#define debug(args...) kout("[ " + string(#args) + " ]", args)
void kout() { cerr << endl; }
template <class T, class ...U> void kout(T a, U ...b) { cerr << a << ' ',kout(b...); }
template <class T> void pary(T L, T R) { while (L != R) cerr << *L << " \n"[++L==R]; }
const int MAXN = 500000;
int N, K;
int a, b;
vector <int> path[MAXN+1];
vector <int> G[MAXN+1];
int v[MAXN+1];
int dsu[MAXN+1];
int sze[MAXN+1];
bool vis[MAXN+1];
int k[MAXN+1];
int ans = 0;
int fnd(int a) {
  return dsu[a] == a ? a : dsu[a] = fnd(dsu[a]);
}
void Merge(int a, int b) {
  a = fnd(a), b = fnd(b);
  if (a == b) return;
  if (sze[a] > sze[b]) {
    dsu[b] = a;
    sze[a] += sze[b];
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 24 / 24
• Subtask 3: 14 / 14
• Subtask 4: 0 / 22
• Subtask 5: 0 / 30