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Count Complete Tree Nodes
According to Wikipedia, every level, except possibly the last, is completely filled in a complete binary tree, and all nodes in the last level are...
Kth Largest Element in an Array
Today we are going to discuss another LeetCode problem.
Implementing Queue using Stacks
We have done some problems using stack and today we are trying to do more of a conceptual exercise.
Backspace String Compare Problem
So far we have solved array-based questions and discussed different solution approaches. Today we are going to try a string problem. Let’s take an easy...
Two Sum, the famous Google interview question
I’ve thought about many ideas regarding my very first post here on vannucherum.com and decided to go ahead with this. What could be better than...
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Count Complete Tree Nodes
According to Wikipedia, every level, except possibly the last, is completely filled in a complete binary tree, and all nodes in the last level are as far left as possible....
Level Order Traversal of Binary Tree
A binary tree is a tree data structure in which each node has at most two children, which are referred to as the left child and the right child. Today...
Find First and Last Position of Element in Sorted Array
Binary Search is a specialized algorithm compared to a normal sequential search. The concept of Binary Search is to search for the element very efficiently by dividing the input into...