Submission #551233

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
551233	2022-04-20 06:11:41	alirezasamimi100	Race (IOI11_race)	C++17	100 / 100	1243 ms	42256 KiB

race

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#include "race.h"
#include <bits/stdc++.h>
using namespace std;
using ll = long long int;
using pll= pair<ll,ll>;
#define pb push_back
vector<pll> adj[200010];
bool hide[200010];
ll sz[200010],k,ans=1e9;
map<ll,ll> mp;
void plant(ll v , ll p = 0){
    sz[v] = 1;
    for(auto [u,w] : adj[v])
        if(u != p && !hide[u]){
            plant(u , v);
            sz[v] += sz[u];
        }
}
ll find_centroid(ll v , ll n , ll p = 0){
    bool found = 1;
    while(found){
        found = 0;
        for(auto [u,w] : adj[v])
            if(u != p && !hide[u] && sz[u] * 2 > n){
                found = 1;
                p = v;
                v = u;
                break;
            }
    }
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 12 / 12
• Subtask 3: 22 / 22
• Subtask 4: 57 / 57