제출 #236480

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
236480	2020-06-02 11:41:24	MohamedAhmed04	Museum (CEOI17_museum)	C++14	100 / 100	821 ms	746360 KiB

museum

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#include <bits/stdc++.h>
using namespace std ;
const int MAX = 1e4 + 2 ;
int n , k , x ;
vector< vector< pair<int , int> > >adj(MAX) ;
int sz[MAX] ;
int dp[MAX][MAX][2] , tmp[MAX][2] ;
void dfs(int node , int par)
{
  dp[node][1][0] = dp[node][1][1] = 0 ;
  sz[node] = 1 ;
  for(auto &childd : adj[node])
  {
    int child = childd.first , cost = childd.second ;
    if(child == par)
      continue ;
    dfs(child , node) ;
    for(int k1 = 0 ; k1 <= min(sz[node] , k) ; ++k1)
    {
      for(int k2 = 0 ; k2 <= sz[child] && k1 + k2 <= k ; ++k2)
      {
        tmp[k1+k2][0] = min(tmp[k1+k2][0] , dp[node][k1][0] + dp[child][k2][0] + 2 * cost) ;
        tmp[k1+k2][1] = min(tmp[k1+k2][1] , dp[node][k1][0] + dp[child][k2][1] + cost) ;
        tmp[k1+k2][1] = min(tmp[k1+k2][1] , dp[node][k1][1] + dp[child][k2][0] + 2 * cost) ;
 
 
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• Subtask 1: 20 / 20
• Subtask 2: 25 / 25
• Subtask 3: 35 / 35
• Subtask 4: 20 / 20