Submission #1198009

#	Time	Username	Problem	Language	Result	Execution time	Memory
1198009		guagua0407	September (APIO24_september)	C++20	100 / 100	135 ms	10432 KiB

september

#include "september.h"
//#include "stub.cpp"
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pii pair<int,int>
#define f first
#define s second
#define all(x) x.begin(),x.end()
#define _ ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

int solve(int n, int m, std::vector<int> F, std::vector<std::vector<int>> S) {
    vector<vector<int>> adj(n);
    for(int i=1;i<n;i++){
        //cout<<F[i-1]<<' '<<i<<'\n';
        adj[F[i]].push_back(i);
    }
    //return 0;
    vector<bool> vis(n);
    set<int> st;
    function<void(int)> dfs=[&](int v){
        if(vis[v]) return;
        vis[v]=true;
        st.insert(v);
        for(auto u:adj[v]){
            dfs(u);
        }
    };
    int ans=0;
    int cnt=0;
    for(int i=0;i<n-1;i++){
        cnt++;
        for(int j=0;j<m;j++){
            dfs(S[j][i]);
        }
        if((int)st.size()==cnt){
            st.clear();
            ans++;
            cnt=0;
        }
    }
	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