ProDeveloperTutorialonJanuary 19, 2025 Implement Stack using Queues Problem Statement: You need to create stack data structure using only queue data structure. Solution As we know that for stack insertion and…
ProDeveloperTutorialonJanuary 19, 2025 Stack: Expression contains redundant bracket or not Problem Statement: You are given an expression in the form of a string. You need to check if the string has redundant brackets. Example Input:…
ProDeveloperTutorialonJanuary 19, 2025 Stack: Length of the longest valid substring Problem Statement: You are given a string, you need to find the length of longest valid parenthesis. Example Input : ((() Output : 2 Solution…
ProDeveloperTutorialonJanuary 19, 2025 Largest Rectangular Area in a Histogram Problem Statement: You are given an array that represents a bar in a histogram. You need to find out the largest rectangle that can be made…
ProDeveloperTutorialonJanuary 19, 2025 Sort a stack Problem Statement: You are given a stack, you need to sort it. Solution This problem can be solved in 2 different methods: 1. Sorting using…
ProDeveloperTutorialonJanuary 19, 2025 Stack: Reverse a stack using recursion Problem Statement: You are given a stack, you need to reverse the stack without using while, for. You need to reverse using recursion.…
ProDeveloperTutorialonJanuary 19, 2025 Insert at the end of stack Problem Statement: You are given an element, you need to insert it at the end of the stach without using any data structure. Solution Solution…
ProDeveloperTutorialonJanuary 19, 2025 Evaluate postfix expression Problem Statement: You are given an postfix expression, you need to evaluate that expression. Postfix expressions are in the form of a b op.…
ProDeveloperTutorialonJanuary 19, 2025 Stack: Next Greater Element Problem Statement: you are given an array, you need to get the next greater element for every element in the array. The next greater element…
ProDeveloperTutorialonJanuary 19, 2025 Stack: Check for balanced brackets using stack Problem Statement: Given a string that has parenthesis. You need to check if it is balanced or not. Example Input: exp = “[()]{}{[()()]()}”…