Submission #1128487

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1128487	2024-12-21 09:51:27	Alihan_8	The Xana coup (BOI21_xanadu)	C++20	10 / 100	67 ms	6216 KiB

xanadu

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#include <bits/stdc++.h>
using namespace std;
signed main(){
  int n; cin >> n;
  
  vector <vector<int>> adj(n);
  
  for ( int i = 1; i < n; i++ ){
    int u, v; cin >> u >> v;
    
    --u, --v;
    
    adj[u].push_back(v);
    adj[v].push_back(u);
  }
  
  vector <int> a(n);
  
  for ( auto &u: a ) cin >> u;
  
  int cnt = 0;
  
  for ( int i = 0; i + 1 < n; i++ ){
    if ( a[i] != 0 ){
      cnt += 1;
      
      a[i] ^= 1, a[i + 1] ^= 1;
      
 
 
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• Subtask 1: 0 / 5
• Subtask 2: 0 / 15
• Subtask 3: 10 / 10
• Subtask 4: 0 / 40
• Subtask 5: 0 / 30