The n-queens puzzle is the problem of placing n queens on a (n×n) chessboard such that no two queens can attack each other. Given an...

Find the largest rectangular area possible in a given histogram where the largest rectangle can be made of a number of contiguous bars....

Given a binary tree having n nodes, find the vertical sum of the nodes that are in the same vertical line. Return all sums through...

Naive pattern searching is the simplest method among other pattern-searching algorithms. It checks for all characters of the main string...