💡 Problems
12 problems (filtered)
Pattern
Two Sum II - Input Array Is Sorted
EasyFreetwo pointersarray
AmazonGoogleApple
Valid Palindrome
EasyFreetwo pointersstring
MetaMicrosoftApple
Best Time to Buy and Sell Stock
EasyFreesliding windowarray
AmazonMetaGoogle
Maximum Sum Subarray of Size K
EasyFreesliding windowarray
AmazonMicrosoftApple
Binary Search
EasyFreebinary searcharray
GoogleAmazonMicrosoft
Reverse Linked List
EasyFreetwo pointerslinked list
AmazonMicrosoftApple
Linked List Cycle
EasyFreetwo pointerslinked list
AmazonMicrosoft
Merge Two Sorted Lists
EasyFreetwo pointerslinked list
AmazonMicrosoft
Maximum Depth of Binary Tree
EasyFreedfstree
AmazonMicrosoft
Invert Binary Tree
EasyFreedfstree
GoogleMac
Two Sum
EasyFreehash maphash map
AmazonGoogleMeta
Valid Parentheses
EasyFreestackstack
MetaAmazon