Leetcode Problem 1441. Build an Array With Stack Operations

1441. Build an Array With Stack Operations

Leetcode Solutions

Simulating Stack Operations to Build Target Array

  1. Initialize an empty list ans to store the stack operations.
  2. Initialize an integer i to 0, representing the next number to be pushed from the stream.
  3. Iterate over each number num in the target array: a. While i is less than num: i. Append 'Push' to ans. ii. Increment i. iii. If i is not equal to num, append 'Pop' to ans. b. Append 'Push' to ans (for the current num). i. Increment i.
  4. Return the list ans containing the sequence of operations.
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Building Target Array with Stack Operations Using a Pointer

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