Submission #856461

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
856461	2023-10-03 14:53:42	ttamx	Museum (CEOI17_museum)	C++14	100 / 100	417 ms	784976 KiB

museum

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
#include<bits/stdc++.h>
using namespace std;
const int N=10005;
const int inf=1e9;
int n,k,x;
vector<pair<int,int>> adj[N];
int dp[2][N][N];
int sz[N];
void dfs(int u,int p=-1){
    sz[u]=1;
    for(auto [v,w]:adj[u])if(v!=p){
        dfs(v,u);
        for(int i=sz[u];i>=0;i--){
            for(int j=sz[v];j>=0;j--){
                dp[0][u][i+j]=min(dp[0][u][i+j],dp[0][u][i]+dp[0][v][j]+w*2);
                dp[1][u][i+j]=min(dp[1][u][i+j],dp[1][u][i]+dp[0][v][j]+w*2);
                dp[1][u][i+j]=min(dp[1][u][i+j],dp[0][u][i]+dp[1][v][j]+w);
            }
        }
        sz[u]+=sz[v];
    }
}
int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    cin >> n >> k >> x;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Compilation message (stderr)

museum.cpp: In function 'void dfs(int, int)':
museum.cpp:15:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   15 |     for(auto [v,w]:adj[u])if(v!=p){
      |              ^

• Subtask 1: 20 / 20
• Subtask 2: 25 / 25
• Subtask 3: 35 / 35
• Subtask 4: 20 / 20