Letter Combinations of a Phone Number

In letter combinations of a phone number problem, we have given a string containing numbers from 2 to 9. The problem is to find all the possible combinations that could be represented by that number if every number has some letters assigned to it. The assignment of the number is …

Read more

Generate all possible sorted arrays from alternate elements of two given sorted arrays

The problem “Generate all possible sorted arrays from alternate elements of two given sorted arrays” states that suppose you have two sorted arrays. The problem statement asks to find out all the possible sorted arrays, such that number should be arranged alternatively from the two given different arrays. Example ArrA[] …

Read more

Shuffle 2n integers as a1-b1-a2-b2-a3-b3-..bn without using extra space

Problem Statement You are given an array of integers. The problem “Shuffle 2n integers as a1-b1-a2-b2-a3-b3-..bn without using extra space” asks to shuffle all the numbers in the array such that the numbers which are like (x0, x1, x2, x3, y0, y1, y2, y3) will be shuffled like x0, y0, …

Read more