제출 #727424

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
727424	2023-04-20 15:49:31	model_code	Cat Exercise (JOI23_ho_t4)	C++17	100 / 100	404 ms	59888 KiB

Main

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#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef vector<ll> vll;
#define mp make_pair
#define pb push_back
#define rep(i,n) for(int i=0;i<n;i++)
#define chmin(a,b) a=min(a,b)
#define chmax(a,b) a=max(a,b)
#define MAX_N 200010
ll n,p[MAX_N],a[MAX_N],b[MAX_N];
vll g[MAX_N];
struct LCA{
    #define D 20
    ll depth[MAX_N],par[MAX_N][D];
    void dfs(ll x,ll from,ll d){
        depth[x]=d;
        par[x][0]=from;
        for(auto y:g[x])if(y!=from){
            dfs(y,x,d+1);
        }
    }
    void init(){
        dfs(0,0,0);
        rep(d,D-1){
            rep(i,n){
                par[i][d+1]=par[par[i][d]][d];
 
 
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• Subtask 7: 26 / 26