| 853 | Car Fleet | Medium |
| 857 | Minimum Cost to Hire K Workers | Hard |
| 860 | Lemonade Change | Easy |
| 861 | Score After Flipping Matrix | Medium |
| 862 | Shortest Subarray with Sum at Least K | Hard |
| 864 | Image Overlap | Medium |
| 867 | Transpose Matrix | Easy |
| 870 | Advantage Shuffle | Medium |
| 871 | Minimum Number of Refueling Stops | Hard |
| 873 | Length of Longest Fibonacci Subsequence | Medium |
| 874 | Walking Robot Simulation | Medium |
| 875 | Koko Eating Bananas | Medium |
| 877 | Stone Game | Medium |
| 879 | Profitable Schemes | Hard |
| 881 | Boats to Save People | Medium |
| 883 | Projection Area of 3D Shapes | Easy |
| 885 | Spiral Matrix III | Medium |
| 888 | Fair Candy Swap | Easy |
| 889 | Construct Binary Tree from Preorder and Postorder Traversal | Medium |
| 890 | Find and Replace Pattern | Medium |
| 891 | Sum of Subsequence Widths | Hard |
| 892 | Surface Area of 3D Shapes | Easy |
| 893 | Groups of Special-Equivalent Strings | Medium |
| 896 | Monotonic Array | Easy |
| 898 | Bitwise ORs of Subarrays | Medium |
| 900 | RLE Iterator | Medium |
| 902 | Numbers At Most N Given Digit Set | Hard |
| 904 | Fruit Into Baskets | Medium |
| 905 | Sort Array By Parity | Easy |
| 907 | Sum of Subarray Minimums | Medium |