Leetcode Problem 962. Maximum Width Ramp

962. Maximum Width Ramp

Leetcode Solutions

Monotonic Stack Based Solution

  1. Initialize an empty stack to store indices of array elements in decreasing order.
  2. Iterate over the array from left to right:
    • If the stack is empty or the current element is less than or equal to the element at the top of the stack, push the current index onto the stack.
  3. Initialize a variable to store the maximum width of the ramp.
  4. Iterate over the array from right to left:
    • While the stack is not empty and the current element is greater than or equal to the element at the index at the top of the stack:
      • Update the maximum width if the current width (current index - top of the stack) is greater than the maximum width.
      • Pop the top index from the stack.
  5. Return the maximum width.
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Two Pointer Approach

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