Submission #547925

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
547925	2022-04-12 03:19:02	fhvirus	Synchronization (JOI13_synchronization)	C++17	0 / 100	466 ms	19868 KiB

synchronization

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#include <bits/stdc++.h>
using namespace std;
const int kL = 17;
const int kN = 100'001;
const int kM = 200'002;
int N, M, Q;
int X[kN], Y[kN];
vector<int> aj[kN];
int in[kN], ou[kN], tot;
int jp[kL][kN];
void dfs(int u, int p) {
  jp[0][u] = p;
  in[u] = ++tot;
  for (const int& v: aj[u]) {
    if (v == p) continue;
    dfs(v, u);
  }
  ou[u] = tot;
}
int val[kN];
void mo(int p, int v) {
  for (; p <= N; p += p & -p)
    val[p] += v;
}
int qu(int p) {
  int r = 0;
 
 
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Compilation message (stderr)

synchronization.cpp: In function 'int main()':
synchronization.cpp:75:7: warning: unused variable 'p' [-Wunused-variable]
   75 |   int p = jp[0][u];
      |       ^

• Subtask 1: 0 / 10
• Subtask 2: 0 / 20
• Subtask 3: 0 / 10
• Subtask 4: 0 / 20
• Subtask 5: 0 / 40