Add a solution to a common interview question

[JingMa87]

The goal of this project is to make common implementations of interview questions available to the general public. The general rule to contribute is that your code has to solve a common interview question. The guideline for what's a common question is the book 'Cracking the Coding Interview' by Gayle McDowell which you can find here. I don't accept pull request for very specialized algorithms and data structures. In case you're not sure whether you should contribute certain code, discuss it with me first.

Good luck hackers! 😄 💯

[erriapo]

Should it be in Java 8/Java7 ?

[minibhati93]

Can the solutions be in Python 2.7? Also, is there a specific list of problems that you are expecting?

[JingMa87]

@erriapo In Java 8!
@minibhati93 I only accept pull requests in Java 8 and you can check out the book I linked before for common questions. You can find a free pdf version online. 👍

[prashant2018]

@JingMa87 can I add the question and its solution which was asked to me in an tech interview ?

[jayMcoder]

#4 Bit Manipulation solution added

[JingMa87]

@prashant2018 If the solution solves a common interview question, then yes!

[popovbodya]

#7 Recursion solution added

[javouhey]

#8 Insertion sort O(n) best, O(n^2) worst.

[differsthecat]

#9 Generate all permutations of a string added
@JingMa87 Can we add multiple questions?

[JingMa87]

@rmcute You can add multiple questions if you want. 😋

[popovbodya]

#13 #11 Added 2 new question solutions

[popovbodya]

#17 Added one more question solution