Basic Calculator 3

Basic Calculator 2 Problem

Basic Calculator 1

What is infix, postfix and prefix Expressions

July 4, 2022 · 1 min ·  Tags List of tags for the post   stack ·  rpn ·  infix ·  Last updated: Aug 2, 2025

The Number of Users That Are Eligible for Discount Problem

Max Chunks to Make Sorted

NSR - Nearest Smaller Element to Right of every element

May 29, 2022 · 2 min ·  Tags List of tags for the post   stack/monotonic ·  Last updated: Aug 2, 2025

NGR - Nearest Greater Element to Right of every element

May 29, 2022 · 2 min ·  Tags List of tags for the post   stack/monotonic ·  Last updated: Aug 2, 2025

Score of Parentheses

Verify Preorder Sequence in Binary Search Tree

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