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

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

Find number of trailing zeros in factorial

Algorithms, Maths 3 mins read

Find numbers that appear twice in an array.

Algorithms, Arrays 3 mins read

Reverse a sublist of linked list

Algorithms, Linked-List 2 mins read

Add two numbers represented by linked lists

Algorithms, Linked-List 7 mins read

Find the largest sum of contiguous subarray

Algorithms, Arrays 4 mins read

Merge sort a linked list

Algorithms, Linked-List, Sorting 3 mins read

Reverse last k elements in a queue

Algorithms, Queue 4 mins read

Iterative merge sort algorithm

Algorithms, Sorting 3 mins read

Find largest subarray with equal numbers of 0’s and 1’s

Algorithms, Arrays 5 mins read

Find all anagrams substring in a string.

Algorithms, String 5 mins read

Find the element that appears once in sorted array

Algorithms, Arrays 3 mins read

Find first or last occurrence of a given number in a sorted array

Algorithms, Search 2 mins read

Implement Iterative binary search

Algorithms, Search 2 mins read

Binary search in javascript

Algorithms, Search 3 mins read

Implement queue using two stack

Algorithms, Queue, Stack 5 mins read

Tree traversal in Javascript

Algorithms, Tree 6 mins read

Restrict modification of object properties in javascript.

Interview, Javascript 5 mins read

How to do lazy loading in javascript

Interview, Javascript 3 mins read

Decode a string (encoded with number followed by string)

Algorithms, Stack, String 4 mins read