monotonic stack

Articles about monotonic stack

1. Article · Data Structures and Algorithms (DSA)

   Maximum Visible People in a Line Using Monotonic Stack

   Find the maximum number of people visible in a line. This problem is solved efficiently using a monotonic stack to find previous and next greater elements.

   Sandhiya PriyaJun 91,9511,000
2. Article · Java

   Stock Span Problem – Monotonic Stack Pattern

   Master the Stock Span Problem with the Monotonic Stack pattern. Efficiently find consecutive days with lower or equal stock prices in O(n) time.

   Sandhiya PriyaJun 92,647
3. Article · Java

   Remove K Digits Problem – Greedy Stack Approach to Find the Smallest Number

   Learn how to solve the “Remove K Digits” problem using a greedy monotonic stack approach. This article explains how to efficiently remove k digits from a number string to form the smallest possible result while maintaining digit order, along with a Java implementation and clear intuition.

   Sandhiya Priya
4. Article · Java

   Lexicographically Smallest String After Removing K Characters Using a Monotonic Stack

   Learn how to find the lexicographically smallest string after removing K characters using a monotonic stack in Java. Includes explanation, dry run, and optimized O(n) solution.

   Sandhiya Priya
5. Article · Java

   Next Element With Greater Frequency – Java O(n) Stack Solution

   Learn how to solve the Next Element With Greater Frequency problem using HashMap and Monotonic Stack. Includes intuition, dry run, complexity analysis, and optimized Java solution.

   Sandhiya PriyaJun 5