Word Wrap

Shortest path in an unweighted graph

Node Level

kth level

Compress the String

Special String

Convert a given Binary Tree to Doubly Linked List

Longest Mountain Subarray

Total Number of BSTs using array elements as root node

Buses

Kth Smallest Element

Swap Number Without Temporary Variable

Minimum steps to reach target by a Knight

Diagonal Traversal

Roots of a Quadratic Equation

Find all triplets with zero sum

Total area of overlapping rectangles

Longest Palindromic Subsequence

Euler’s Totient Function

Maximum sum of two non-overlapping subarrays of a given size

Nth Element Of Modified Fibonacci Series

Palindrome Partitioning

Dice Throws

Reverse Linked List

Mean Median Mode