Author: SJ

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Find all the numbers in the range which has prime set bits.

Objective: Given a range, find all the numbers in the range which has prime set bits. Example: L = 4, R = 10 Output: 5 Explanation: 4 = 1 0 0 ( not prime)...

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Check if Graph is Bipartite – Adjacency Matrix using Depth-First Search(DFS)

Objective: Given a graph represented by the adjacency matrix, write a Depth-First Search(DFS) algorithm to check whether the graph is bipartite or not. Bipartite Graphs OR Bigraphs is a graph whose vertices can be...

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Check if Arithmetic Expression contains duplicate parenthesis

Objective: Given an arithmetic expression, write an algorithm to find out whether the expression contains duplicate parenthesis. Duplicate Parenthesis: Two contiguous parentheses with no elements between them can be called as duplicate parenthesis.  Example:...

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Determine the order of Tests when tests have dependencies on each other

Objective: You are working on a project where QA team has automated set of test cases for the project, but these test cases have to be executed in a specific order since test cases...

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Find the maximum number present in a String

Given a string with alphabets and numbers. Write an algorithm to find the maximum number in the string. If any number is greater than equal to Max_Value of integer then return the Max_Value. Example:...

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Reverse a Stack using recursion – In Place (Without using extra memory)

Objective: Given a Stack, write an algorithm to reverse the stack. Example: Original Stack: [14, 9, 67, 91, 101, 25] Reversed Stack: [25, 101, 91, 67, 9, 14] Approach: Use Recursion In this solution,...

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Convert Prefix to Postfix Expression

Objective: Given a Prefix expression, write an algorithm to convert it into Postfix expression. Example: Input: Prefix expression:  + A B  Output: Postfix expression: A B + Input: Prefix expression:  *-A/BC-/AKL Output: Postfix expression:...

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