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interview problem
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- 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.
- Article · Data Structures and Algorithms (DSA)
Count Subarrays with K Odd Numbers
Master the 'Count Subarrays with K Odd Numbers' problem using the sliding window and 'atMost(k) - atMost(k-1)' technique. Optimize your coding interview prep with this O(n) solution!
- Article · Data Structures and Algorithms (DSA)
Find H-Index
Master the H-Index problem with this guide! Learn the sorting approach to efficiently find the maximum H-index, balancing paper quantity and citations. Includes Java code!
