Merge overlapping intervals

Algorithms, Arrays 3 mins read

Convert string to integer (ATOI)

Algorithms, String 5 mins read

Invert a binary tree | Recursive and Iterative solutions

Algorithms, Tree 6 mins read

Learn how to reverse words in a string

Algorithms, String 4 mins read

Find the longest common prefix

Algorithms, String 4 mins read

Median of two sorted arrays

Algorithms, Arrays, Search 4 mins read

3 sum problem algorithm

Algorithms, Arrays 6 mins read

Print all the quadruplets with given | 4 sum algorithm

Algorithms, Arrays 2 mins read

4 sum problem

Algorithms, Arrays 5 mins read

Word Break Problem

Algorithms, Arrays, String 4 mins read

Find all binary strings that can be formed from wildcard pattern

Algorithms, String 3 mins read

Diagonal traversal of binary tree

Algorithms, Queue, Tree 5 mins read

Check if given binary tree is full.

Algorithms, Queue, Tree 5 mins read

Print the left view of a binary tree

Algorithms, Queue, Tree 4 mins read

Print right view of a binary tree

Algorithms, Queue, Tree 5 mins read

Check if binary tree is symmetric

Algorithms, Tree 5 mins read

Flatten binary tree to linked list

Algorithms, Linked-List, Tree 4 mins read

Combination sum problem

Algorithms, Arrays 4 mins read

Search in a sorted rotated array

Algorithms, Arrays, Search 4 mins read

Find square of a number without using *, / and pow()

Algorithms, Bitwise, Maths 3 mins read

Find all unique paths in a grid

Algorithms, Arrays 3 mins read

Maximum consecutive one’s or zero’s in a circular array

Algorithms, Arrays 3 mins read

Maximum consecutive one’s in a binary array

Algorithms, Arrays 2 mins read

Trapping rain water in javascript

Algorithms, Arrays 3 mins read

Next permutation problem

Algorithms, Arrays 2 mins read

Set matrix zeroes

Algorithms, Arrays 4 mins read

Find the intersection point of two linked list

Algorithms, Linked-List 4 mins read

Rotate matrix 90 degrees clockwise and anti-clockwise

Algorithms, Arrays 5 mins read

Check if binary tree has path sum

Algorithms, Tree 3 mins read

Find number of trailing zeros in factorial

Algorithms, Maths 3 mins read