Submission #972883

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
9728832024-05-01 09:29:49dio_2Synchronization (JOI13_synchronization)C++17
40 / 100
8069 ms16916 KiB
#include<bits/stdc++.h>
using namespace std;
int main(){
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n, m, q;
cin >> n >> m >> q;
vector<vector<int>> g(n + 1);
vector<pair<int, int>> kraw(n);
vector<int> state_kraw(n); // na poczatky wszytko jest off.
for(int i = 0;i < n - 1;i++){
int a, b;
cin >> a >> b;
g[a].push_back(b);
g[b].push_back(a);
kraw[i + 1] = make_pair(a, b);
}
vector<int> dep(n + 1), tin(n + 1), tout(n + 1);
vector<int> parent(n + 1), parent_kraw(n + 1);
vector<int> passed_cnt(n + 1); // ile przeszlo od danej krawedzi
vector<int> info(n + 1, 1); // ile informacij ma dane korzenie ( czyli leader DSU )
int T = 1;
auto dfs1 = [&](auto &&dfs1, int u, int p)->void{
tin[u] = T++;
for(int v : g[u]) if(v != p){
 
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