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Leetcode 1352: Product of the Last K Numbers

Design an algorithm that accepts a stream of integers and retrieves the product of the last k integers in the stream.

Jun 24, 2024 - 5 min read

Leetcode 1357: Apply Discount Every n Orders

A supermarket offers various products, each with an associated price. The customers make purchases where the subtotal is calculated based on the prices and quantities of the products they buy. Every nth customer gets a discount on their subtotal, and the final bill is calculated accordingly.

Jun 24, 2024 - 6 min read

Leetcode 1381: Design a Stack With Increment Operation

Design a stack that supports increment operations on its elements. Implement the CustomStack class, which supports adding elements, popping the top element, and incrementing the bottom k elements.

Jun 21, 2024 - 6 min read

Leetcode 1396: Design Underground System

You are tasked with building a system to track customer travel times within an underground railway network. The system should calculate the average time taken to travel between two stations based on previous trips. Implement the UndergroundSystem class with the following methods.

Jun 20, 2024 - 5 min read

Leetcode 1472: Design Browser History

You are tasked with simulating the history of web page visits in a browser. Implement the BrowserHistory class to manage visit, back, and forward actions.

Jun 12, 2024 - 7 min read

Leetcode 1476: Subrectangle Queries

You are tasked with implementing the SubrectangleQueries class which operates on a matrix representing a rectangle with integer values. The class should support two key operations: updateSubrectangle and getValue.

Jun 12, 2024 - 5 min read