# Status Problem video Level Completes Likes
551

Reverse a linked list using stack

Medium % 0
466

Lexicographically next permutation With One swap

Medium % 1
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
386

Convert Integer to Roman

Medium % 0
377

Convert Postfix to Infix Expression

Medium % 0
371

Convert Infix to Prefix Expression

Medium % 0
368

Max Flow Problem - Ford-Fulkerson Algorithm

Hard % 0
365

Convert Infix to Postfix Expression

Medium % 0
363

Evaluation of Infix expressions

Medium % 0
361

Convert Prefix to Infix Expression

Medium % 0
359

Merge K sorted Linked List - Using Priority Queue

Hard % 0
343

Generate all the strings of length n from 0 to k-1

Medium % 0
275

Graph – Detect Cycle in a Directed Graph using colors

Hard % 0
274

Graph – Detect Cycle in an Undirected Graph using DFS

Medium % 0
273

Graph – Detect Cycle in a Directed Graph

Medium % 1
251

Dynamic Programming - Egg Dropping Problem

Hard % 0
250

Nuts & Bolts Problem (Lock & Key problem)

Beginner % 0
235

Majority Element- Boyer–Moore majority vote algorithm

Medium % 0
216

Find the element which appears maximum number of times in the array

Medium % 0
198

Kadane's Algorithm - Maximum Subarray Problem

Medium % 1
169

Dynamic Programming - Coin Change Problem

Medium % 1
162

Dynamic Programming - Subset Sum Problem

Hard % 0
161

The Word Break Problem

Hard % 0
160

Dynamic Programming - Longest Increasing Subsequence

Medium % 1
159

Solve the Knight's Tour with Backtracking

Hard % 0
158

Backtracking - Search a Word In a Matrix

Hard % 0
146

Dynamic Programming - Stairs Climbing Puzzle

Beginner % 1
145

Dynamic Programming - Minimum Coin Change Problem

Medium % 1
106

Reverse a Doubly-Linked List (In-place Algorithm)

Medium % 0

Reverse a linked list using stack

Lexicographically next permutation With One swap

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 Integer to Roman

Convert Postfix to Infix Expression

Convert Infix to Prefix Expression

Max Flow Problem - Ford-Fulkerson Algorithm

Convert Infix to Postfix Expression

Evaluation of Infix expressions

Convert Prefix to Infix Expression

Merge K sorted Linked List - Using Priority Queue

Generate all the strings of length n from 0 to k-1

Graph – Detect Cycle in a Directed Graph using colors

Graph – Detect Cycle in an Undirected Graph using DFS

Graph – Detect Cycle in a Directed Graph

Dynamic Programming - Egg Dropping Problem

Nuts & Bolts Problem (Lock & Key problem)

Majority Element- Boyer–Moore majority vote algorithm

Find the element which appears maximum number of times in the array

Kadane's Algorithm - Maximum Subarray Problem

Dynamic Programming - Coin Change Problem

Dynamic Programming - Subset Sum Problem

The Word Break Problem

Dynamic Programming - Longest Increasing Subsequence

Solve the Knight's Tour with Backtracking

Backtracking - Search a Word In a Matrix

Dynamic Programming - Stairs Climbing Puzzle

Dynamic Programming - Minimum Coin Change Problem

Reverse a Doubly-Linked List (In-place Algorithm)