Submission #373545

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
373545	2021-03-05 04:03:04	lakshith_	Traffic (IOI10_traffic)	C++14	50 / 100	1571 ms	262148 KiB

traffic

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#include <bits/stdc++.h>
    #include "traffic.h"
    #define pb push_back
  #define ll int
     
    using namespace std;
  
    vector<vector<int>> adj(1000000,vector<int>());
 
    map<pair<int,int>,ll> m;
  int* P;
 
    ll dp(int p,int c){
        if(m.find((pair<int,int>){p,c})!=m.end())return m[(pair<int,int>){p,c}];
        ll ans = P[c];
        for(int v:adj[c]){
            if(v==p)continue;
            ans += dp(c,v);
        }
        m.insert({{p,c},ans});
        return ans;
  }
     
    int LocateCentre(int n,int p[],int s[],int d[]){
      for(int i=0;i<n-1;i++){
        adj.at(s[i]).pb(d[i]);
        adj.at(d[i]).pb(s[i]);
      }
      P = p;
 
 
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• Subtask 1: 25 / 25
• Subtask 2: 0 / 25
• Subtask 3: 25 / 25
• Subtask 4: 0 / 25