제출 #998270

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
998270		Warinchai	9월 (APIO24_september)	C++17	100 / 100	120 ms	10956 KiB

september

#include "september.h"
#include<bits/stdc++.h>
using namespace std;
int rem=0;
struct tree{
    vector<int>adj[100005];
    int vis[100005];
    void dfs_add(int u,int p=-1){
        if(vis[u])return;
        vis[u]=1;
        rem++;
        for(auto v:adj[u])dfs_add(v,u);
    }
    void clear(int n,int m){
        for(int i=0;i<=n;i++)adj[i].clear();
        for(int j=0;j<n;j++)vis[j]=0;
    }
}tr;
int solve(int N, int M, vector<int> F, vector<vector<int>> S) {
    rem=0;
    for(int i=0;i<M;i++)tr.clear(N,M);
    for(int j=1;j<N;j++){
        tr.adj[F[j]].push_back(j);
    }
    int ans=0;
    for(int i=0;i<N-1;i++){
        for(int j=0;j<M;j++){
            //cerr<<S[j][i]<<"\n";
            tr.dfs_add(S[j][i]);
            //cerr<<"work\n";
        }
        rem--;
        if(rem==0)ans++;
        //cerr<<"rem:"<<rem<<"\n";
    }
	return ans;
}

• Subtask 1: 11 / 11
• Subtask 2: 14 / 14
• Subtask 3: 5 / 5
• Subtask 4: 9 / 9
• Subtask 5: 5 / 5
• Subtask 6: 11 / 11
• Subtask 7: 9 / 9
• Subtask 8: 11 / 11
• Subtask 9: 9 / 9
• Subtask 10: 16 / 16