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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3. #define ll long long
  4. #define nada "\n"
  5. const int N = 3e5 + 20;
  6. const double pi = 3.141592653;
  7. void fast()
  8. {
  9.     ios::sync_with_stdio(0);
  10.     cin.tie(0);
  11.     cout.tie(0);
  12. }
  13.  
  14. int main()
  15. {
  16.     fast();
  17. //cout<<fixed<<setprecision(6);
  18.     ll n,k,a;
  19.     cin>>a>>n;
  20.     k=-n;
  21.     ll arr[2*100000];
  22.     for(int i=0; i<a; i++)
  23.     {
  24.         cin>>arr[i];
  25.     }cout<< k<<"\n";
  26.     sort(arr,arr+a);
  27.     for(int i=0; i<a; i++)
  28.     {
  29.  
  30.         if(arr[i]!=k)
  31.         {
  32.             cout<<k;
  33.             break;
  34.         }
  35.         else
  36.         {
  37.             k++;
  38.         }
  39.     }
  40.  
  41. }
Success #stdin #stdout 0s 4392KB
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https://ideone.com/ZegWGk
language:
C++ (gcc 8.3)
created:
4 years ago
visibility:
public

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