Submission #220761

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
220761	2020-04-08 17:57:23	tictaccat	Synchronization (JOI13_synchronization)	C++14	100 / 100	867 ms	26360 KiB

synchronization

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#include <bits/stdc++.h>
using namespace std;
const int MAX = 1e5 + 100;
int N,M,Q,C;
vector<vector<int>> adj(MAX);
vector<pair<int,int>> el;
vector<bool> active(MAX);
int cnt;
vector<int> p(MAX), explored(MAX), pre(MAX), post(MAX), dep(MAX);
vector<vector<int>> anc(20, vector<int>(MAX));
vector<int> a(MAX, 1), c(MAX,0);
vector<int> tr(MAX);
void dfs(int u) {
    explored[u] = true;
    pre[u] = cnt++;
    for (int v: adj[u]) {
        if (explored[v]) continue;
        p[v] = u;
        dep[v] = dep[u]+1;
        dfs(v);
    }
    post[u] = cnt-1;
   // cout << u+1 << " " << pre[u] << " " << post[u] << "\n";
}
 
 
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• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 10 / 10
• Subtask 4: 20 / 20
• Subtask 5: 40 / 40