S30 FAANMG Problem #4 | Create Queue using Stacks

[sandy7907]

No description provided.

[super30admin]

• The solution is correct and efficient. It correctly implements a queue using two stacks with amortized O(1) time for operations.

• The code is readable and well-structured.

• However, there is a syntax error: the class is missing a closing brace. This would cause a compilation error. Please add a closing brace at the end of the file.

• Additionally, to avoid code duplication, you can consider having the pop method call the peek method to ensure the outStack is updated, and then pop. For example:

  public int pop() {
      peek(); // This ensures outStack has the front element if available
      return outStack.pop();
  }
  

  This way, the transfer logic is only in peek. But the current approach is also acceptable.

Overall, the solution is good except for the missing brace.