Solution: Number of Visible People in a Queue
Understand how to determine the number of visible people to the right of each person in a queue using a decreasing stack. Explore the step-by-step approach to apply stack operations for an efficient O(n) solution, managing visibility checks and blockages caused by taller individuals.
We'll cover the following...
We'll cover the following...
Statement
You are given an array heights representing n people standing in a queue, numbered from 0 to n - 1 from left to right. Each element heights[i] denotes the height of the person at position i. All heights are distinct.
A person at position i can see a person at position j (i < j) to their right if every person between them is shorter than both heights[i] and heights[j].
Forma ...