| 404 | Sum of Left Leaves | Easy |
| 405 | Convert a Number to Hexadecimal | Easy |
| 409 | Longest Palindrome | Easy |
| 412 | Fizz Buzz | Easy |
| 414 | Third Maximum Number | Easy |
| 415 | Add Strings | Easy |
| 434 | Number of Segments in a String | Easy |
| 441 | Arranging Coins | Easy |
| 448 | Find All Numbers Disappeared in an Array | Easy |
| 455 | Assign Cookies | Easy |
| 459 | Repeated Substring Pattern | Easy |
| 461 | Hamming Distance | Easy |
| 463 | Island Perimeter | Easy |
| 476 | Number Complement | Easy |
| 482 | License Key Formatting | Easy |
| 485 | Max Consecutive Ones | Easy |
| 492 | Construct the Rectangle | Easy |
| 495 | Teemo Attacking | Easy |
| 496 | Next Greater Element I | Easy |
| 500 | Keyboard Row | Easy |
| 501 | Find Mode in Binary Search Tree | Easy |
| 504 | Base 7 | Easy |
| 506 | Relative Ranks | Easy |
| 507 | Perfect Number | Easy |
| 509 | Fibonacci Number | Easy |
| 511 | Game Play Analysis I | Easy |
| 520 | Detect Capital | Easy |
| 521 | Longest Uncommon Subsequence I | Easy |
| 530 | Minimum Absolute Difference in BST | Easy |
| 541 | Reverse String II | Easy |