# Status Problem video Level Completes Likes 556 Patience Sorting - Longest Increasing Subsequence Medium % 1 553 Minimize Scheduling Headaches: Clone Yourself for Overlapping Events Hard % 0 551 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 % 0 441 Print All Paths in Dijkstra's Shortest Path Algorithm 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 Patience Sorting - Longest Increasing Subsequence Minimize Scheduling Headaches: Clone Yourself for Overlapping Events 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. Print All Paths in Dijkstra's Shortest Path Algorithm 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 1 2 3 4