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  1. #include <bits/stdc++.h>
  2. #define ll long long
  3. using namespace std;
  4. int main()
  5. {
  6.  long long x;
  7.  cin >> x;
  8.  cout << x*x + 2*x + 1 ;
  9.     return 0;
  10. }
Success #stdin #stdout 0.01s 5312KB
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https://ideone.com/g0XABT
language:
C++14 (gcc 8.3)
created:
6 hours ago
visibility:
public

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