Submission #1000778

#	Time	Username	Problem	Language	Result	Execution time	Memory
1000778		imarn	September (APIO24_september)	C++17	100 / 100	276 ms	10736 KiB

september

#include<bits/stdc++.h>
#pragma GCC optimize("O3")
#pragma GCC target("avx2")
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define plx pair<ll,int>
#define f first
#define s second
#define pb push_back
#define all(x) x.begin(),x.end()
#define vi vector<int>
#define vl vector<ll>
#define vvi vector<vi>
using namespace std;
const int mxn=1e5+5;
vector<int>g[mxn];
bool vis[mxn]{0};
int cnt[6]{0};
void dfs(int u){
    vis[u]=1;
    for(int i=0;i<5;i++)cnt[i]++;
    for(auto v:g[u]){
        if(!vis[v])dfs(v);
    }
}
int solve(int N, int M, std::vector<int> F, std::vector<std::vector<int>> S){
    for(int i=1;i<N;i++)g[F[i]].pb(i);
    int ans=0;
    for(int i=0;i<N-1;i++){
        for(int j=0;j<M;j++){
            if(!vis[S[j][i]])dfs(S[j][i]);
            if(vis[S[j][i]])cnt[j]--;
        }bool ch=0;
        for(int j=0;j<M;j++)if(cnt[j]!=0)ch=1;
        if(!ch)ans++;
    }memset(vis,0,sizeof vis);memset(cnt,0,sizeof cnt);
    for(int i=0;i<mxn;i++)g[i].clear();
    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