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Submission #940888

# Submission time Handle Problem Language Result Execution time Memory
940888 2024-03-08T00:48:46 Z Pacybwoah Village (BOI20_village) C++17
50 / 100
 107 ms 22368 KB 
#include<iostream>
#include<vector>
using namespace std;
vector<vector<int> > graph;
vector<int> match,prem;
vector<vector<int> > dp;
void dfs_min(int node,int parent){
    for(auto x:graph[node]){
        if(x==parent) continue;
        dfs_min(x,node);
        dp[node][0]+=max(dp[x][0],dp[x][1]);
    }
    for(auto x:graph[node]){
        if(x==parent) continue;
        if(dp[node][1]<dp[node][0]-max(dp[x][0],dp[x][1])+dp[x][0]+1){
            dp[node][1]=dp[node][0]-max(dp[x][0],dp[x][1])+dp[x][0]+1;
            prem[node]=x;
        }
    }
}
void dfs_match(int node,int parent,bool flag){
    if(flag||dp[node][0]>=dp[node][1]){
        for(auto x:graph[node]){
            if(x==parent) continue;
            dfs_match(x,node,0);
        }
    }
    else{
        match[node]=prem[node];
        match[prem[node]]=node;
        for(auto x:graph[node]){
            if(x==parent) continue;
            if(x==prem[node]) dfs_match(x,node,1);
            else dfs_match(x,node,0);
        }
    }
}
int main(){
    int n;
    cin>>n;
    graph.resize(n+1);
    prem.resize(n+1);
    int a,b;
    for(int i=1;i<n;i++){
        cin>>a>>b;
        graph[a].push_back(b);
        graph[b].push_back(a);
    }
    dp.resize(n+1,vector<int>(2));
    match.resize(n+1,-1);
    dfs_min(1,0);
    dfs_match(1,0,0);
    vector<int> ans_min(n+1);
    for(int i=1;i<=n;i++){
        if(match[i]!=-1){
            ans_min[i]=match[i];
        }
        else ans_min[i]=i;
    }
    int min_cnt=max(dp[1][1],dp[1][0])*2;
    for(int i=1;i<=n;i++){
        if(match[i]==-1){
            swap(ans_min[i],ans_min[graph[i][0]]),min_cnt+=2;
        }
    }
    cout<<min_cnt<<" 1\n";
    for(int i=1;i<=n;i++) cout<<ans_min[i]<<" \n"[i==n];
    for(int i=1;i<=n;i++) cout<<ans_min[i]<<" \n"[i==n];
}

Subtask #1
6.0 / 12.0

# Verdict Execution time Memory Grader output
1 Partially correct 0 ms 344 KB Partially correct
2 Partially correct 0 ms 348 KB Partially correct
3 Partially correct 1 ms 348 KB Partially correct
4 Partially correct 1 ms 348 KB Partially correct
5 Partially correct 0 ms 436 KB Partially correct
6 Partially correct 0 ms 344 KB Partially correct
7 Partially correct 0 ms 436 KB Partially correct
8 Partially correct 1 ms 348 KB Partially correct
9 Partially correct 0 ms 348 KB Partially correct
10 Partially correct 0 ms 348 KB Partially correct
11 Partially correct 0 ms 348 KB Partially correct
12 Partially correct 0 ms 348 KB Partially correct
13 Partially correct 1 ms 348 KB Partially correct
14 Partially correct 0 ms 436 KB Partially correct
15 Partially correct 0 ms 600 KB Partially correct
16 Partially correct 0 ms 348 KB Partially correct
17 Partially correct 0 ms 348 KB Partially correct

Subtask #2
19.0 / 38.0

# Verdict Execution time Memory Grader output
1 Partially correct 1 ms 348 KB Partially correct
2 Partially correct 1 ms 348 KB Partially correct
3 Partially correct 1 ms 348 KB Partially correct
4 Partially correct 1 ms 348 KB Partially correct
5 Partially correct 1 ms 348 KB Partially correct
6 Partially correct 1 ms 348 KB Partially correct
7 Partially correct 1 ms 604 KB Partially correct
8 Partially correct 1 ms 348 KB Partially correct
9 Partially correct 1 ms 344 KB Partially correct
10 Partially correct 1 ms 348 KB Partially correct
11 Partially correct 1 ms 348 KB Partially correct
12 Partially correct 1 ms 348 KB Partially correct
13 Partially correct 1 ms 348 KB Partially correct
14 Partially correct 1 ms 348 KB Partially correct
15 Partially correct 1 ms 348 KB Partially correct
16 Partially correct 1 ms 348 KB Partially correct
17 Partially correct 1 ms 344 KB Partially correct
18 Partially correct 1 ms 348 KB Partially correct
19 Partially correct 1 ms 348 KB Partially correct
20 Partially correct 1 ms 348 KB Partially correct
21 Partially correct 1 ms 348 KB Partially correct
22 Partially correct 1 ms 568 KB Partially correct
23 Partially correct 1 ms 348 KB Partially correct
24 Partially correct 1 ms 348 KB Partially correct
25 Partially correct 1 ms 348 KB Partially correct
26 Partially correct 1 ms 348 KB Partially correct
27 Partially correct 1 ms 348 KB Partially correct
28 Partially correct 1 ms 348 KB Partially correct
29 Partially correct 1 ms 348 KB Partially correct
30 Partially correct 1 ms 348 KB Partially correct

Subtask #3
25.0 / 50.0

# Verdict Execution time Memory Grader output
1 Partially correct 0 ms 344 KB Partially correct
2 Partially correct 0 ms 348 KB Partially correct
3 Partially correct 1 ms 348 KB Partially correct
4 Partially correct 1 ms 348 KB Partially correct
5 Partially correct 0 ms 436 KB Partially correct
6 Partially correct 0 ms 344 KB Partially correct
7 Partially correct 0 ms 436 KB Partially correct
8 Partially correct 1 ms 348 KB Partially correct
9 Partially correct 0 ms 348 KB Partially correct
10 Partially correct 0 ms 348 KB Partially correct
11 Partially correct 0 ms 348 KB Partially correct
12 Partially correct 0 ms 348 KB Partially correct
13 Partially correct 1 ms 348 KB Partially correct
14 Partially correct 0 ms 436 KB Partially correct
15 Partially correct 0 ms 600 KB Partially correct
16 Partially correct 0 ms 348 KB Partially correct
17 Partially correct 0 ms 348 KB Partially correct
18 Partially correct 1 ms 348 KB Partially correct
19 Partially correct 1 ms 348 KB Partially correct
20 Partially correct 1 ms 348 KB Partially correct
21 Partially correct 1 ms 348 KB Partially correct
22 Partially correct 1 ms 348 KB Partially correct
23 Partially correct 1 ms 348 KB Partially correct
24 Partially correct 1 ms 604 KB Partially correct
25 Partially correct 1 ms 348 KB Partially correct
26 Partially correct 1 ms 344 KB Partially correct
27 Partially correct 1 ms 348 KB Partially correct
28 Partially correct 1 ms 348 KB Partially correct
29 Partially correct 1 ms 348 KB Partially correct
30 Partially correct 1 ms 348 KB Partially correct
31 Partially correct 1 ms 348 KB Partially correct
32 Partially correct 1 ms 348 KB Partially correct
33 Partially correct 1 ms 348 KB Partially correct
34 Partially correct 1 ms 344 KB Partially correct
35 Partially correct 1 ms 348 KB Partially correct
36 Partially correct 1 ms 348 KB Partially correct
37 Partially correct 1 ms 348 KB Partially correct
38 Partially correct 1 ms 348 KB Partially correct
39 Partially correct 1 ms 568 KB Partially correct
40 Partially correct 1 ms 348 KB Partially correct
41 Partially correct 1 ms 348 KB Partially correct
42 Partially correct 1 ms 348 KB Partially correct
43 Partially correct 1 ms 348 KB Partially correct
44 Partially correct 1 ms 348 KB Partially correct
45 Partially correct 1 ms 348 KB Partially correct
46 Partially correct 1 ms 348 KB Partially correct
47 Partially correct 1 ms 348 KB Partially correct
48 Partially correct 75 ms 13532 KB Partially correct
49 Partially correct 85 ms 14932 KB Partially correct
50 Partially correct 83 ms 14944 KB Partially correct
51 Partially correct 62 ms 11700 KB Partially correct
52 Partially correct 81 ms 14604 KB Partially correct
53 Partially correct 73 ms 13396 KB Partially correct
54 Partially correct 47 ms 11240 KB Partially correct
55 Partially correct 99 ms 22368 KB Partially correct
56 Partially correct 93 ms 18260 KB Partially correct
57 Partially correct 107 ms 16924 KB Partially correct
58 Partially correct 87 ms 15956 KB Partially correct
59 Partially correct 86 ms 14932 KB Partially correct
60 Partially correct 69 ms 15172 KB Partially correct
61 Partially correct 74 ms 15308 KB Partially correct
62 Partially correct 77 ms 15184 KB Partially correct
63 Partially correct 70 ms 14484 KB Partially correct
64 Partially correct 78 ms 15324 KB Partially correct
65 Partially correct 75 ms 15380 KB Partially correct
66 Partially correct 72 ms 14384 KB Partially correct
67 Partially correct 54 ms 11336 KB Partially correct
68 Partially correct 65 ms 12920 KB Partially correct
69 Partially correct 82 ms 15444 KB Partially correct
70 Partially correct 70 ms 14416 KB Partially correct
71 Partially correct 51 ms 10836 KB Partially correct
72 Partially correct 57 ms 12112 KB Partially correct
73 Partially correct 76 ms 15440 KB Partially correct
74 Partially correct 69 ms 14160 KB Partially correct
75 Partially correct 83 ms 14672 KB Partially correct
76 Partially correct 83 ms 14672 KB Partially correct
77 Partially correct 75 ms 14420 KB Partially correct
78 Partially correct 52 ms 10068 KB Partially correct
79 Partially correct 65 ms 11788 KB Partially correct
80 Partially correct 101 ms 14932 KB Partially correct
81 Partially correct 82 ms 14524 KB Partially correct
82 Partially correct 74 ms 15188 KB Partially correct