Submission #1199254

#TimeUsernameProblemLanguageResultExecution timeMemory
1199254al_reem_2010September (APIO24_september)C++20
0 / 100
3 ms2880 KiB
// اَللَهُمَ صَلِ عَلَىَ مُحَمَدٍ وَ آلِ مُحَمَدٍ #include "bits/stdc++.h" #include <iostream> #include <vector> #include <string> #include <algorithm> #include <cmath> #include <map> #include <set> #include <queue> #include <thread> #include <fstream> using namespace std ; //#define int long long #define pb push_back #define si size() #define fi first #define se second #define all(a) a.begin(),a.end() #define applejuice ios::sync_with_stdio(false) ; cin.tie(nullptr) ; cout.tie(nullptr) ; //const int inf=1e18 ; //const int mod=1e9+7 ; int tt=1 ; bool vis[100007] ; vector<int> ch[100007] ; void dfs(int k , int p) { if(vis[k]) {return ;} vis[k]=1 ; for(int i=0 ; i<ch[k].si ; i++) { if(ch[k][i]==p) {continue ;} dfs(ch[k][i],k) ; } } int solve(int n , int m , vector<int> f , vector<vector<int>> s) { int ans=0 ; vector<int> ch[n+7] ; for(int i=0 ; i<n ; i++) {ch[f[i]].pb(i) ; vis[i]=0 ;} for(int j=0 ; j<n ; j++) { if(vis[s[0][j]]) {continue ;} ans+=1 ; dfs(s[0][j],f[s[0][j]]) ; } for(int i=0 ; i<n ; i++) {ch[i].clear() ;} return ans ; }
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