Submission #310426

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
310426	2020-10-06 21:59:17	mohamedsobhi777	Factories (JOI14_factories)	C++14	100 / 100	5225 ms	170308 KiB

factories

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#include "factories.h"
#include<bits/stdc++.h>
//#include "grader.cpp"
const int MX = 5e5 + 7 ; 
using namespace std ; 
vector<pair<int,int> > adj[MX];
vector<int> adx[MX];
int st[MX], en[MX] , t ; 
int up[MX][20] ; 
int col[MX] ; 
long long pref[MX] ; 
int _n; 
void dfs(int x, int p ){
        st[x] = ++ t ; 
        up[x][0] = p ; 
        for(int i = 1; i < 20 ; ++ i)
                up[x][i] = up[ up[x][i-1]][i-1] ; 
        for(auto u : adj[x]){
                if(u.first == p)continue ;
                pref[u.first] = pref[x] + u.second ;  
                dfs(u.first , x) ; 
        }
        en[x] = ++ t; 
}
inline bool upper(int u , int v){return st[u] <= st[v] && en[v] <= en[u] ;}
inline bool cmp(int u ,int v){return st[u] < st[v] ;}
 
 
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• Subtask 1: 15 / 15
• Subtask 2: 18 / 18
• Subtask 3: 67 / 67