| 633 | Sum of Square Numbers | Medium |
| 640 | Solve the Equation | Medium |
| 650 | 2 Keys Keyboard | Medium |
| 667 | Beautiful Arrangement II | Medium |
| 668 | Kth Smallest Number in Multiplication Table | Hard |
| 670 | Maximum Swap | Medium |
| 672 | Bulb Switcher II | Medium |
| 679 | 24 Game | Hard |
| 710 | Random Pick with Blacklist | Hard |
| 728 | Self Dividing Numbers | Easy |
| 738 | Monotone Increasing Digits | Medium |
| 754 | Reach a Number | Medium |
| 762 | Prime Number of Set Bits in Binary Representation | Easy |
| 770 | Basic Calculator IV | Hard |
| 775 | Global and Local Inversions | Medium |
| 780 | Reaching Points | Hard |
| 781 | Rabbits in Forest | Medium |
| 782 | Transform to Chessboard | Hard |
| 788 | Rotated Digits | Medium |
| 789 | Escape The Ghosts | Medium |
| 793 | Preimage Size of Factorial Zeroes Function | Hard |
| 805 | Split Array With Same Average | Hard |
| 808 | Soup Servings | Medium |
| 810 | Chalkboard XOR Game | Hard |
| 812 | Largest Triangle Area | Easy |
| 829 | Consecutive Numbers Sum | Hard |
| 836 | Rectangle Overlap | Easy |
| 837 | New 21 Game | Medium |
| 840 | Magic Squares In Grid | Medium |
| 843 | Guess the Word | Hard |