Compiller - java version "12" 2019-03-19 https://www.algoexpert.io/questions

 AlgoeExpert Problems List

Section Easy

1 1 Two Number Sum 2 2 Find Closest Value In BST 3 3 Branch Sums 4 4 Depthfirst Search 5 5 Linked List Construction 6 6 Nth Fibonacci 7 7 Product Sum 8 8 Binary Search 9 9 Find Three Largest Numbers 10 10 Bubble Sort 11 11 Insertion Sort 12 12 Selection Sort 13 13 Palindrome Check 14 14 Caesar Cipher Encryptor

 Section Medium

15 1 Three Number Sum 16 2 Smallest Difference 17 3 Move Element To End 18 4 BST Construction 19 5 Validate BST 20 6 BST Traversal 21 7 Invert Binary Tree 22 8 Max Subset Sum No Adjacent 23 9 Number Of Ways To Make Change 24 10 Min Number Of Coins For Change 25 11 Levenshtein Distance 26 12 Kadanes Algorithm 27 13 Single Cycle Check 28 14 Breadthfirst Search 29 15 River Sizes 30 16 Youngest Common Ancestor 31 17 Min Heap Construction 32 18 Remove Nth Node From End 33 19 Permutations 34 20 Powerset 35 21 Search In Sorted Matrix 36 22 Min Max Stack Construction 37 23 Balanced Brackets 38 24 Longest Palindromic Substring 39 25 Group Anagrams 40 26 Suffix Trie Construction

 Section Hard

41 1 Four Number Sum 42 2 Subarray Sort 43 3 Largest Range 44 4 Min Rewards 45 5 Zigzag Traverse 46 6 Same BSTs 47 7 Max Path Sum 48 8 Max Sum Increasing Subsequence 49 9 Longest Common Subsequence 50 10 Min Number Of Jumps 51 11 Water Area 52 12 Knapsack Problem 53 13 Disk Stacking 54 14 Numbers In Pi 55 15 Topological Sort 56 16 Boggle Board 57 17 Continuous Median 58 18 Find Loop 59 19 Reverse Linked List 60 20 Merge Linked Lists 61 21 Lowest Common Manager 62 22 Interweaving Strings 63 23 Shifted Binary Search 64 24 Search For Range 65 25 Quickselect 66 26 Quick Sort 67 27 Heap Sort 68 28 Longest Substring Without Duplication 69 29 Underscorify Substring 70 30 Pattern Matcher 71 31 Multi String Search

 Section Very Hard

72 1 Apartment Hunting 73 2 Calendar Matching 74 3 Iterative Inorder Traversal 75 4 Max Profit With K Transactions 76 5 Palindrome Partitioning Min Cuts 77 6 Longest String Chain 78 7 KnuthвMorrisвPratt 79 8 Rectangle Mania 80 9 LRU Cache 81 10 Number Of Binary Tree Topologies 82 11 Merge Sort 83 12 Smallest Substring Containing

 Section Extremely Hard

84 1 Longest Increasing Subsequence 85 2 Airport Connections