You are given an 'N' * 'M' sized binary-valued matrix 'MAT, where 'N' is the number of row...

You are given a binary tree with ‘N’ nodes.

Your task is to find the “Maximum Path Sum” for any path.

Note :

1. A ‘path’ is a sequence of adjacent p...

You have been given an array 'ARR' of 'N' distinct elements.

Your task is to find the minimum no. of swaps required to sort the array.

For example:

You are given a string EXP which is a valid infix expression. Convert the given infix expression to postfix expression.

Infix expression is of the form a op b. Where operator is...