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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5.     int x;
  6.     cin >> x;
  7.  
  8.  
  9.     cout << x - x % 2 << endl;
  10.  
  11.  
  12.     cout << x + (x % 2) << endl;
  13.  
  14.  
  15.     cout << x - 1 - (1 - x % 2) << endl;
  16.  
  17.     cout << x + 1 + (x % 2 - 1) << endl;
  18.  
  19.     return 0;
  20. }
  21.  
Success #stdin #stdout 0.01s 5256KB
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stdout
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https://ideone.com/r7GTJ0
language:
C++14 (gcc 8.3)
created:
3 hours ago
visibility:
public

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