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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define endl "\n"
  4. #define ll long long
  5. #define faster() ios::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
  6. const int MOD = 1e9 + 7 ;
  7.  
  8. int a[105], dp[105] , n , total;
  9.  
  10. void solve(){
  11.     total = 0 ;
  12.     cin >> n  ;
  13.     for(int i = 1 ; i <= n ; i++){
  14.         cin >> a[i];
  15.         total += a[i];
  16.     }
  17.     if(total % 2 != 0) cout << "0" << endl ;
  18.     else{
  19.         total /= 2 ;
  20.         dp[0] = 1 ;
  21.         for(int i = 1 ; i <= total ; i++){
  22.             for(int j = 1 ; j <= n ; j++){
  23.                 if(i - a[j] >= 0 && dp[i - a[j]]){
  24.                     dp[i] = 1;
  25.                 }
  26.             }
  27.         }
  28.         cout << dp[total] ;
  29.     }
  30. }   
  31.  
  32.  
  33. int main() {
  34.     faster(); 
  35.     int test = 1 ; 
  36.     // cin >> test ;
  37.     while(test--)   solve();
  38.     return 0;
  39. }
  40.  
  41.  
  42.  
Success #stdin #stdout 0.01s 5276KB
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https://ideone.com/JkbZKY
language:
C++ (gcc 8.3)
created:
131 days ago
visibility:
public

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