# | Title | Difficulty |
---|---|---|
1 | Two Sum | Easy |
7 | Reverse Integer | Easy |
9 | Palindrome Number | Easy |
14 | Longest Common Prefix | Easy |
20 | Valid Parentheses | Easy |
26 | Remove Duplicates from Sorted Array | Easy |
27 | Remove Element | Easy |
35 | Search Insert Position | Easy |
66 | Plus One | Easy |
88 | Merge Sorted Array | Easy |
136 | Single Number | Easy |
167 | Two Sum II | Easy |
169 | Majority Element | Easy |
189 | Rotate Array | Easy |
202 | Happy Number | Easy |
204 | Count Primes | Easy |
205 | Isomorphic Strings | Easy |
217 | Contains Duplicate | Easy |
242 | Valid Anagram | Easy |
290 | World Pattern | Easy |