LeetCode Solutions#136
Single Number
ArrayBit Manipulation
2 months ago
Progress snapshot
26 solved — keep it up 💪
A personal log of LeetCode problems I've solved, with multiple approaches and complexity analysis for each one.
26solved26topics18companies
26 problems found
Easy
#238
Product of Array Except Self
ArrayPrefix Sum
AppleLinkedInAmazon+2Facebook · Microsoft
2 months ago
#746
Min Cost Climbing Stairs
Mid LevelArrayDynamic Programming+1Weekly Contest 63
Amazon
2 months ago
#121
Best Time to Buy and Sell Stock
ArrayDynamic Programming
Tesla
3 months ago
#125
Valid Palindrome
Two PointersString
UberLinkedInFacebook+2Zenefits · Microsoft
3 months ago
#509
Fibonacci Number
MathDynamic ProgrammingRecursion+1Memoization
3 months ago
#70
Climbing Stairs
MathDynamic ProgrammingMemoization
3 months ago
#225
Implement Stack using Queues
StackDesignQueue
3 months ago
#49
Group Anagrams
ArrayHash TableString+1Sorting
UberAmazonFacebook+2Bloomberg · Yelp
4 months ago
#347
Top K Frequent Elements
ArrayHash TableDivide and Conquer+5Sorting · Heap (Priority Queue) · Bucket Sort · Counting · Quickselect
Pocket GemsYelp
4 months ago
#242
Valid Anagram
Hash TableStringSorting
Amazon
4 months ago
#217
Contains Duplicate
ArrayHash TableSorting
Palantir TechnologiesYahooAirbnb+1Palantir
4 months ago