# Status Problem video Level Completes Likes
551

Reverse a linked list using stack

Medium % 0
489

The number of cycles in a given array of integers.

Hard % 0
468

Unique subsets with a given sum with allowed repeated digits.

Medium % 0
466

Lexicographically next permutation With One swap

Medium % 1
465

Find all subsets of size K from a given number N (1 to N)

Medium % 0
462

Stable Marriage Problem - Gale–Shapley Algorithm

Hard % 0
457

Given an array, print all unique subsets with a given sum.

Medium % 0
444

Articulation Points OR Cut Vertices in a Graph

Hard % 0
442

Find the number of distinct Islands OR connected components.

Hard % 0
439

Determine the given routing number belong to which bank

Medium % 0
436

Find all unique combinations of exact K numbers (from 1 to 9 ) with sum to N

Medium % 0
427

Number of Islands using BFS

Medium % 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
408

Number of Islands

Medium % 1
407

Integer Replacement Problem

Medium % 0
396

Optimizing Test Execution: Managing Test Dependencies for Sequential Order

Medium % 0
392

Reverse a Stack using recursion - In Place (Without using extra memory)

Hard % 1
390

Convert Prefix to Postfix Expression

Medium % 0
388

Sort a given stack - Using Temporary Stack

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
373

Longest substring with at most two unique characters

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
354

Valid Multiple Parentheses

Medium % 1
271

Snake and Ladder Problem

Hard % 1
262

Count and print all Subarrays with product less than K in O(n)

Hard % 0
258

Graph – Print all paths between source and destination

Medium % 1

Reverse a linked list using stack

The number of cycles in a given array of integers.

Unique subsets with a given sum with allowed repeated digits.

Lexicographically next permutation With One swap

Find all subsets of size K from a given number N (1 to N)

Stable Marriage Problem - Gale–Shapley Algorithm

Given an array, print all unique subsets with a given sum.

Articulation Points OR Cut Vertices in a Graph

Find the number of distinct Islands OR connected components.

Determine the given routing number belong to which bank

Find all unique combinations of exact K numbers (from 1 to 9 ) with sum to N

Number of Islands using BFS

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

Number of Islands

Integer Replacement Problem

Optimizing Test Execution: Managing Test Dependencies for Sequential Order

Reverse a Stack using recursion - In Place (Without using extra memory)

Convert Prefix to Postfix Expression

Sort a given stack - Using Temporary Stack

Convert Postfix to Prefix Expression

Convert Integer to Roman

Convert Postfix to Infix Expression

Longest substring with at most two unique characters

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

Valid Multiple Parentheses

Snake and Ladder Problem

Count and print all Subarrays with product less than K in O(n)

Graph – Print all paths between source and destination