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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:...

Swap Sum

Concepts Used Heap Difficulty Level Medium Problem Statement : We are given N elements with an integer S. We want to find such a sub-array that has the maximum possible...