Submission #1172240

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1172240	2025-03-23 05:19:41	gyg	Keys (IOI21_keys)	C++20	37 / 100	3100 ms	154720 KiB

keys

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#include "keys.h"
#include <bits/stdc++.h>
using namespace std;
#define vec vector
#define arr array 
#define pii pair<int, int>
#define fir first 
#define sec second 
const int N = 3e5 + 5, INF = 1e9;
// Zero indexing
int n;
arr<int, N> cl;
arr<vec<pii>, N> adj;
struct Dsj {
  arr<int, N> pr;
  arr<vec<int>, N> st;
  void intl() {
    for (int u = 0; u < n; u++)
      pr[u] = u, st[u] = {u};
  }
  void mrg(int u, int v) { // v into u
    u = pr[u], v = pr[v];
    assert(u != v);
    for (int w : st[v])
      pr[w] = u, st[u].push_back(w);
  }
} dsj;
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 11 / 11
• Subtask 3: 17 / 17
• Subtask 4: 0 / 30
• Subtask 5: 0 / 33