Found 2 articles tagged with #stacks

Implement Queue using 2 Stacks

In this approach, you use one stack for enqueue (insertion) operations and the other stack for dequeue (removal) operations, effectively simulating the behavior of a queue.

Valid Parentheses

You are given a string containing only parentheses, brackets, and curly braces. You need to determine if the string's parentheses are valid and properly balanced.