# Status Problem video Level Completes Likes
442

Find the number of distinct Islands OR connected components.

Hard % 0
426

Check if Graph is Bipartite - Adjacency List using Depth-First Search(DFS)

Hard % 0
416

Evaluation of Prefix Expressions (Polish Notation) | Set 2

Medium % 0
410

Evaluation of Prefix Expressions (Polish Notation) | Set 1

Medium % 0
390

Convert Prefix to Postfix Expression

Medium % 0
387

Convert Postfix to Prefix Expression

Medium % 0
377

Convert Postfix to Infix Expression

Medium % 0
371

Convert Infix to Prefix Expression

Medium % 0
365

Convert Infix to Postfix Expression

Medium % 0
363

Evaluation of Infix expressions

Medium % 0
361

Convert Prefix to Infix Expression

Medium % 0
209

Find longest Snake sequence in a given matrix

Medium % 1
208

Dynamic Programming - Count all paths in 2D Matrix with Obstructions in it

Medium % 1
198

Kadane's Algorithm - Maximum Subarray Problem

Medium % 1
186

Reverse a Linked List in groups of given size 'K'

Medium % 0
174

Dynamic Programming - Maximum Product Cutting Problem.

Medium % 1
167

Generate Well Ordered Passwords of a Given Length K

Medium % 0
166

All N Length Strings from Given String of Length K

Medium % 0
163

Dynamic Programming - Maximum size square sub-matrix with all 1s

Medium % 1
160

Dynamic Programming - Longest Increasing Subsequence

Medium % 1
158

Backtracking - Search a Word In a Matrix

Hard % 0
153

Find the Second Largest Element in an Array

Beginner % 1
145

Dynamic Programming - Minimum Coin Change Problem

Medium % 1
142

Find the Deepest Left Node in a Binary Tree.

Medium % 0
132

Find the Deepest Node in a Binary Tree.

Medium % 1
127

Find numbers that are palindrome in the decimal and octal Representations

Beginner % 0
126

Find All the Well Ordered Permutations of a Given String.

Medium % 0
124

Construct a Special Triangle from a Given Array

Beginner % 0
123

Colorful Numbers

Hard % 2
122

Goldbach's Conjecture

Beginner % 0
120

Convert Decimal into Irreducible Fraction

Beginner % 0

Find the number of distinct Islands OR connected components.

Check if Graph is Bipartite - Adjacency List using Depth-First Search(DFS)

Evaluation of Prefix Expressions (Polish Notation) | Set 2

Evaluation of Prefix Expressions (Polish Notation) | Set 1

Convert Prefix to Postfix Expression

Convert Postfix to Prefix Expression

Convert Postfix to Infix Expression

Convert Infix to Prefix Expression

Convert Infix to Postfix Expression

Evaluation of Infix expressions

Convert Prefix to Infix Expression

Find longest Snake sequence in a given matrix

Dynamic Programming - Count all paths in 2D Matrix with Obstructions in it

Kadane's Algorithm - Maximum Subarray Problem

Reverse a Linked List in groups of given size 'K'

Dynamic Programming - Maximum Product Cutting Problem.

Generate Well Ordered Passwords of a Given Length K

All N Length Strings from Given String of Length K

Dynamic Programming - Maximum size square sub-matrix with all 1s

Dynamic Programming - Longest Increasing Subsequence

Backtracking - Search a Word In a Matrix

Find the Second Largest Element in an Array

Dynamic Programming - Minimum Coin Change Problem

Find the Deepest Left Node in a Binary Tree.

Find the Deepest Node in a Binary Tree.

Find numbers that are palindrome in the decimal and octal Representations

Find All the Well Ordered Permutations of a Given String.

Construct a Special Triangle from a Given Array

Colorful Numbers

Goldbach's Conjecture

Convert Decimal into Irreducible Fraction