Submission #531073

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
531073	2022-02-27 16:22:22	Alex_tz307	Synchronization (JOI13_synchronization)	C++17	100 / 100	238 ms	24784 KiB

synchronization

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#include <bits/stdc++.h>
using namespace std;
const int kN = 1e5;
const int kLog = 16;
int n, m, q, timer, tin[1 + kN], tout[1 + kN], aib[1 + kN], card[1 + kN], last[1 + kN], anc[1 + kN][1 + kLog];
short act[1 + kN];
vector<int> g[1 + kN];
pair<int, int> edges[1 + kN];
void dfs(int u) {
  tin[u] = ++timer;
  card[u] = 1;
  act[u] = -1;
  for (int i = 1; i <= kLog; ++i) {
    anc[u][i] = anc[anc[u][i - 1]][i - 1];
    if (anc[u][i] == 0) {
      break;
    }
  }
  for (int v : g[u]) {
    if (v != anc[u][0]) {
      anc[v][0] = u;
      dfs(v);
    }
  }
  tout[u] = timer;
}
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 10 / 10
• Subtask 4: 20 / 20
• Subtask 5: 40 / 40