Submission #223913

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
223913	2020-04-16 20:45:22	medk	Capital City (JOI20_capital_city)	C++14	100 / 100	1141 ms	109416 KiB

capital_city

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#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define x first
#define y second
#define all(u) u.begin(),u.end()
#define sz(u) (int)(u.size())
#define INF (int)(1e9)
using namespace std;
const int MAXN=2e5+5;
int n,k,ans=INF;
vector<vector<int>> tr(MAXN),grp(MAXN),cd(MAXN);
int col[MAXN],subsz[MAXN],parcd[MAXN],par[MAXN],dpth[MAXN],in[MAXN],dpthcd[MAXN];
bool blocked[MAXN];
vector<vector<int>> lca(2*MAXN,vector<int>(20));
int root=-1;
vector<int> eul;
void calc_sz(int u, int pr)
{
    subsz[u]=1;
    for(int v:tr[u])
    {
        if(v==pr || blocked[v]) continue;
        calc_sz(v,u);
        subsz[u]+=subsz[v];
 
 
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• Subtask 1: 1 / 1
• Subtask 2: 10 / 10
• Subtask 3: 30 / 30
• Subtask 4: 59 / 59