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Fundamental Problems

Class Photos Recursion in Coding Interviews Fizzbuzz Two Number Sum Three Number Sum Quick Sort Binary Search Palindrome Check Nth Fibonacci Minimal Waiting Time Max Subset Sum No Adjacent LeetCode 1 – Two Sum LeetCode 2 – Add Two Numbers LeetCode 5 – Longest Palindromic Substring LeetCode 7 – Reverse Integer LeetCode 8 – String to Integer (atoi)LeetCode 9 – Palindrome Number LeetCode 10 – Regular Expression Matching LeetCode 12 – Integer to Roman LeetCode 13 – Roman to Integer LeetCode 14 – Longest Common Prefix LeetCode 15 – 3Sum LeetCode 19 – Remove Nth Node From End of List LeetCode 20 – Valid Parentheses LeetCode 21 – Merge Two Sorted Lists LeetCode 22 – Generate Parentheses LeetCode 23 – Merge k Sorted Lists LeetCode 28 – Implement strStr()LeetCode 31 – Next Permutation LeetCode 33 – Search in Rotated Sorted Array LeetCode 34 – Find First and Last Position of Element in Sorted Array LeetCode 36 – Valid Sudoku LeetCode 39 – Combination Sum LeetCode 40 – Combination Sum II LeetCode 41 – First Missing Positive LeetCode 42 – Trapping Rain Water LeetCode 43 – Multiply Strings LeetCode 46 – Permutations LeetCode 47 – Permutations II LeetCode 49 – Group Anagrams LeetCode 121 – Best Time to Buy and Sell Stock LeetCode 200 – Number of Islands LeetCode 347 – Top K Frequent Elements LeetCode 543 – Diameter of Binary Tree

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Fizzbuzz

February 7, 20191 min readUpdated 2/7/2022

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