Submission #1200525

#	Time	Username	Problem	Language	Result	Execution time	Memory
1200525		meligy122	September (APIO24_september)	C++20	0 / 100	1097 ms	4928 KiB

september

#include<bits/stdc++.h>
#include "september.h"

using namespace std;

#define ll long long
#define Meligy ios_base::sync_with_stdio(false); cin.tie(NULL);

const int N=2e5 + 5;
vector<ll>adj[N];
bool vis[N];
set<int>st;
void bfs(int s){
    queue<int>q;
    vis[s]=1;
    q.push(s);
    while(!q.empty()) {
        int cur=q.front();
        q.pop();
        for(auto &v:adj[cur]){
            if(vis[v])continue;
            st.insert(v);
            vis[v]=1;
            q.push(v);
        }
    }
}
int solve(int N, int M, std::vector<int> F, std::vector<std::vector<int>> S){
    for(int i=1;i<N;i++){
        adj[F[i]].push_back(i);
    }
    int ans=0;
    for(int i=0;i<N-1;i++){
        if(!vis[S[0][i]]){
            bfs(S[0][i]);
        }
        else{
            st.erase(st.find(S[0][i]));
        }
        if(st.empty())ans++;
    }
	return ans;
}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 14
• Subtask 3: 0 / 5
• Subtask 4: 0 / 9
• Subtask 5: 0 / 5
• Subtask 6: 0 / 11
• Subtask 7: 0 / 9
• Subtask 8: 0 / 11
• Subtask 9: 0 / 9
• Subtask 10: 0 / 16