Interview practice

LeetCode solutions

Worked solutions to LeetCode problems, with the full source code. Search by name or problem number.

Problems: 103

103 problems

#1Two Sum
#9Palindrome Number
#11Container With Most Water
#14Longest Common Prefix
#20Valid Parentheses
#27Remove Element
#28Find the Index of the First Occurrence in a String
#35Search Insert Position
#48Rotate Image
#55Jump Game
#66Plus One
#67Add Binary
#70Climbing Stairs
#75Sort Colors
#83Remove Duplicates from Sorted List
#88Merge Sorted Array
#104Maximum Depth of Binary Tree
#108Convert Sorted Array to Binary Search Tree
#125Valid Palindrome
#136Single Number
#141Linked List Cycle
#162Find Peak Element
#169Majority Element
#190Reverse Bits
#191Number of 1 Bits
#195Tenth Line
#199Binary Tree Right Side View
#205Isomorphic Strings
#206Reverse Linked List
#215Kth Largest Element in an Array
#225Implement Stack using Queues
#232Implement Queue using Stacks
#242Valid Anagram
#257Binary Tree Paths
#283Move Zeroes
#290Word Pattern
#338Counting Bits
#344Reverse String
#345Reverse Vowels of a String
#371Sum of Two Integers
#374Guess Number Higher or Lower
#383Ransom Note
#387First Unique Character in a String
#392Is Subsequence
#405Convert a Number to Hexadecimal
#409Longest Palindrome
#412Fizz Buzz
#415Add Strings
#496Next Greater Element I
#500Keyboard Row
#557Reverse Words in a String III
#643Maximum Average Subarray I
#653Two Sum IV - Input is a BST
#680Valid Palindrome II
#682Baseball Game
#700Search in a Binary Search Tree
#724Find Pivot Index
#762Prime Number of Set Bits in Binary Representation
#771Jewels and Stones
#783Minimum Distance Between BST Nodes
#844Backspace String Compare
#872Leaf-Similar Trees
#897Increasing Order Search Tree
#933Number of Recent Calls
#938Range Sum of BST
#1009Complement of Base 10 Integer
#1207Unique Number of Occurrences
#1365How Many Numbers Are Smaller Than the Current Number
#1431Kids With the Greatest Number of Candies
#1470Shuffle the Array
#1476Subrectangle Queries
#1480Running Sum of 1d Array
#1512Number of Good Pairs
#1544Make The String Great
#1598Crawler Log Folder
#1614Maximum Nesting Depth of the Parentheses
#1652Defuse the Bomb
#1684Count the Number of Consistent Strings
#1732Find the Highest Altitude
#1920Build Array from Permutation
#1929Concatenation of Array
#2000Reverse Prefix of Word
#2011Final Value of Variable After Performing Operations
#2055Plates Between Candles
#2073Time Needed to Buy Tickets
#2220Minimum Bit Flips to Convert Number
#2235Add Two Integers
#2300Successful Pairs of Spells and Potions
#2390Removing Stars From a String
#2418Sort the People
#2433Find The Original Array of Prefix Xor
#2469Convert the Temperature
#2703Return Length of Arguments Passed
#2932Maximum Strong Pair XOR I
#2942Find Words Containing Character
#2974Minimum Number Game
#3110Score of a String
#3146Permutation Difference between Two Strings
#3158Find the XOR of Numbers Which Appear Twice
#3174Clear Digits
#3190Find Minimum Operations to Make All Elements Divisible by Three
#3270Find the Key of the Numbers
#3289The Two Sneaky Numbers of Digitville

Problems