Submission #1172417

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1172417	2025-03-23 12:49:06	DanielPr8	Railway (BOI17_railway)	C++20	0 / 100	92 ms	36148 KiB

railway

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#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vll = vector<ll>;
using vvl = vector<vll>;
using pll = pair<ll,ll>;
using vpl = vector<pll>;
using vvp = vector<vpl>;
#define f first
#define s second
#define pb push_back
#define all(v) v.begin(),v.end()
vll ans, sz, dt;
vvp g;
ll k;
vvl pr;
void dfs(ll cr){
    for(pll i:g[cr]){
        if(i.f!=pr[0][cr]){
            pr[0][i.f]=cr;
            dt[i.f]=dt[cr]+1;
            dfs(i.f);
        }
    }
}
void calc(ll cr){
    for(pll i:g[cr]){
        if(i.f!=pr[0][cr]){
            calc(i.f);
            sz[cr]+=sz[i.f];
 
 
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