Submission #994470

#TimeUTC-0UsernameProblemLanguageResultExecution timeMemory
9944702024-06-07 16:51:52vladiliusOne-Way Streets (CEOI17_oneway)C++17
0 / 100
0 ms348 KiB
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<int, int>;
#define pb push_back
#define ff first
#define ss second
#define ins insert
struct TR{
vector<vector<int>> g;
vector<pii> ed;
int n;
TR(int ns){
n = ns;
g.resize(n + 1);
}
void add(int u, int v){
ed.pb({u, v});
g[u].pb(v);
g[v].pb(u);
}
vector<int> sz, h, p, d;
void fill(int v, int pr){
p[v] = pr;
sz[v] = 1;
for (int i: g[v]){
if (i == pr) continue;
d[i] = d[v] + 1;
fill(i, v);
 
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