Leetcode Problem 2422. Merge Operations to Turn Array Into a Palindrome

2422. Merge Operations to Turn Array Into a Palindrome

Leetcode Solutions

Two Pointers + Greedy Approach

  1. Initialize two pointers, left and right, to the start and end of the array, respectively.
  2. Initialize a counter operations to 0.
  3. While left is less than right: a. If the elements at left and right are equal, move both pointers inward. b. If the element at left is less than the element at right, sum the element at left with the next element, increment left, and increment operations. c. If the element at right is less than the element at left, sum the element at right with the previous element, decrement right, and increment operations.
  4. Return the value of operations.
UML Thumbnail

Prefix Sum and Two Pointers Approach

Ask Question

Programming Language
image/screenshot of info(optional)
Full Screen
Loading...

Suggested Answer

Answer
Full Screen
Copy Answer Code
Loading...