Status
Title
Acceptance
Difficulty
Frequency
1. Two Sum
ArrayHash Table
50.3%
Easy
9. Palindrome Number
Math
52.4%
Easy
20. Valid Parentheses
StringStack
40.1%
Easy
21. Merge Two Sorted Lists
Linked ListRecursion
62.5%
Easy
53. Maximum Subarray
ArrayDynamic Programming
50.1%
Medium
121. Best Time to Buy and Sell Stock
ArrayDynamic Programming
54.2%
Easy
206. Reverse Linked List
Linked ListRecursion
72.8%
Easy
15. 3Sum
ArrayTwo Pointers+1
32.9%
Medium