Submission #409884

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
409884	2021-05-21 17:58:09	CaroLinda	The Xana coup (BOI21_xanadu)	C++14	100 / 100	101 ms	15328 KiB

xanadu

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#include <bits/stdc++.h>
#define ll long long
#define all(x) x.begin(),x.end()
const int MAXN = 1e5+10 ;
using namespace std ;
int N ;
int color[MAXN] ;
int dp[MAXN][2][2] ; //color, should click
vector<int> adj[MAXN] ;
void dfs(int x, int par )
{
  bool is_leaf = true ;
  for(auto e : adj[x])
  {
    if(e == par ) continue ;
    
    dfs(e,x) ;
    is_leaf = false ;
  }
  if(is_leaf)
  {
    dp[x][0][0] = 0 ;
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

xanadu.cpp: In function 'int main()':
xanadu.cpp:114:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  114 |  scanf("%d", &N ) ;
      |  ~~~~~^~~~~~~~~~~
xanadu.cpp:117:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  117 |   scanf("%d %d", &u, &v ) ;
      |   ~~~~~^~~~~~~~~~~~~~~~~~
xanadu.cpp:121:38: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
  121 |  for(int i = 1 ; i <= N ; i++ ) scanf("%d", &color[i] ) ;
      |                                 ~~~~~^~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 15 / 15
• Subtask 3: 10 / 10
• Subtask 4: 40 / 40
• Subtask 5: 30 / 30