Max Rectangle

Concepts Used: DP/recursion and Stack. Difficulty Level: Hard. Problem Statement : Given a 2D binary matrix filled with 0’s and 1’s, find the largest rectangle containing all ones and print...

Samir String

Concepts Used: Stack. Difficulty Level: Easy. Problem Statement : Make the minimum number without repetition of the digits such that it follows the sequence given in the string. 'I' represents...

Sort stack

Concepts Used: Stacks Difficulty Level: Easy. Problem Statement : Given a stack of integers, sort it in ascending order using another temporary stack. See original problem statement here Solving Approach:...