Code

Binary Tree

How to find all ancestors of the given nodes in Binary Tree? Program solved and explained in C/C++, Python, Java.

algorithm

Program for level order traversal in binary tree solved in Python, C/C++ and Java. Explained with example and complexity.

algorithm

How to write a program to find the height of the binary tree using recursion? Solved in Python, C/C++ and Java code.

coding challenge

How to reverse string without affecting special characters in Python, C/C++ and Java? Not changing the position of the special characters.

coding challenge

[Solved] Number Patterns and Fining the Possible Smallest Numeric Value. Solution in C/C++/Python /Python.

editor

Novi HTML builder review. Pricing, features and advantages of Novi visual editor. Free Novi template for website designing.

coding challenge

[Solved] How to find two unique numbers from array in O(n) time using XOR operation. Solved in Python, C/C++ and Java programming.

coding challenge

How to find duplicates in array in O(n) linear time. Using 1) sorting and 2) hashing. Problem solved in Python, C/C++ and Java.

coding challenge

Coding challenge- Group Anagrams from the given list. Asked in Goldman Sachs interview. Solved in Python, C/C++ and Java.

Interview Questions