Submission #1138003

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1138003	2025-01-21 13:13:07	SmuggingSpun	Synchronization (JOI13_synchronization)	C++20	100 / 100	185 ms	22572 KiB

synchronization

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#include<bits/stdc++.h>
#define taskname "A"
using namespace std;
const int lim = 1e5 + 5;
const int INF = 1e9;
int n, m, q, euler = 0, low[lim], tail[lim], h[lim], ans[lim], pre_edge_ans[lim], bit[lim], up[lim][17];
pair<int, int>edge[lim];
vector<int>g[lim];
bitset<lim>state;
void update(int p, int x){
  for(; p <= n; p += p & -p){
    bit[p] += x;
  }
}
void update(int l, int r, int x){
  update(l, x);
  update(r + 1, -x);
}
int get(int p){
  int ans = 0;
  for(; p > 0; p -= p & -p){
    ans += bit[p];
  }
  return ans;
}
void dfs(int s){
  low[s] = ++euler;
  for(int& d : g[s]){
    if(d != up[s][0]){
      h[d] = h[up[d][0] = s] + 1;
 
 
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Compilation message (stderr)

synchronization.cpp: In function 'int main()':
synchronization.cpp:50:24: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   50 |                 freopen(taskname".inp", "r", stdin);
      |                 ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~

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