# Status Problem video Level Completes Likes 472 Sort Map as per values - Java Program Medium % 0 471 Two Sum Problem Beginner % 0 470 Find if any two intervals overlap in given intervals Medium % 0 468 Unique subsets with a given sum with allowed repeated digits. Medium % 0 467 Print all steps to convert one string to another string Medium % 0 465 Find all subsets of size K from a given number N (1 to N) Medium % 0 463 Combinations with sum K from a given number N with repetition Medium % 0 462 Stable Marriage Problem - Gale–Shapley Algorithm Hard % 0 461 Insert a node in the given sorted linked list. Beginner % 1 460 Construct the largest number from the given array Medium % 0 457 Given an array, print all unique subsets with a given sum. Medium % 0 456 Subsets Elements less than K. Medium % 0 455 Replace array elements with maximum element on the right. Medium % 0 454 Find all unique combinations of numbers (from 1 to 9 ) with sum to N Medium % 0 452 Activity Selection Problem Medium % 0 451 Find the sum of overlapping elements in two sets Beginner % 0 449 Check if Graph is Bipartite - Adjacency List using Breadth-First Search(BFS) Hard % 0 447 Check If Given Undirected Graph is a tree Medium % 0 444 Articulation Points OR Cut Vertices in a Graph Hard % 0 443 Check the completeness of given binary tree | Set 2 - Using Level Order Traversal Medium % 0 442 Find the number of distinct Islands OR connected components. Hard % 0 441 Print All Paths in Dijkstra's Shortest Path Algorithm Hard % 0 440 Given an array, Print sum of all subsets Beginner % 1 439 Determine the given routing number belong to which bank Medium % 0 438 Check if interval is covered in given coordinates Medium % 0 437 Lexicographically previous permutation With One swap Medium % 1 436 Find all unique combinations of exact K numbers (from 1 to 9 ) with sum to N Medium % 0 431 Check the completeness of given binary tree | Set 1 - Using Node Count Medium % 0 428 Collatz Conjecture - Maximum Steps takes to transform (1, N) to 1. Medium % 0 427 Number of Islands using BFS Medium % 0 426 Check if Graph is Bipartite - Adjacency List using Depth-First Search(DFS) Hard % 0 425 Check if the given binary tree is Full or not Beginner % 1 422 Print Stack in reverse order Beginner % 0 421 Sort a given stack - Using Recursion Hard % 1 420 Number's Complement - 2 Approaches Medium % 1 Sort Map as per values - Java Program Two Sum Problem Find if any two intervals overlap in given intervals Unique subsets with a given sum with allowed repeated digits. Print all steps to convert one string to another string Find all subsets of size K from a given number N (1 to N) Combinations with sum K from a given number N with repetition Stable Marriage Problem - Gale–Shapley Algorithm Insert a node in the given sorted linked list. Construct the largest number from the given array Given an array, print all unique subsets with a given sum. Subsets Elements less than K. Replace array elements with maximum element on the right. Find all unique combinations of numbers (from 1 to 9 ) with sum to N Activity Selection Problem Find the sum of overlapping elements in two sets Check if Graph is Bipartite - Adjacency List using Breadth-First Search(BFS) Check If Given Undirected Graph is a tree Articulation Points OR Cut Vertices in a Graph Check the completeness of given binary tree | Set 2 - Using Level Order Traversal Find the number of distinct Islands OR connected components. Print All Paths in Dijkstra's Shortest Path Algorithm Given an array, Print sum of all subsets Determine the given routing number belong to which bank Check if interval is covered in given coordinates Lexicographically previous permutation With One swap Find all unique combinations of exact K numbers (from 1 to 9 ) with sum to N Check the completeness of given binary tree | Set 1 - Using Node Count Collatz Conjecture - Maximum Steps takes to transform (1, N) to 1. Number of Islands using BFS Check if Graph is Bipartite - Adjacency List using Depth-First Search(DFS) Check if the given binary tree is Full or not Print Stack in reverse order Sort a given stack - Using Recursion Number's Complement - 2 Approaches 1 2 3 4 5 6 7 8 9