| 867. Transpose Matrix | | | Solve | Easy | | |
| 870. Advantage Shuffle | | | Solve | Medium | | |
| 871. Minimum Number of Refueling Stops | | | Solve | Hard | | |
| 873. Length of Longest Fibonacci Subsequence | | | Solve | Medium | | |
| 874. Walking Robot Simulation | | | Solve | Medium | | |
| 875. Koko Eating Bananas | | | Solve | Medium | | |
| 877. Stone Game | | | Solve | Medium | | |
| 879. Profitable Schemes | | | Solve | Hard | | |
| 881. Boats to Save People | | | Solve | Medium | | |
| 883. Projection Area of 3D Shapes | | | Solve | Easy | - | |
| 885. Spiral Matrix III | | | Solve | Medium | | |
| 888. Fair Candy Swap | | | Solve | Easy | | |
| 889. Construct Binary Tree from Preorder and Postorder Traversal | | | Solve | Medium | | |
| 890. Find and Replace Pattern | | | Solve | Medium | | |
| 891. Sum of Subsequence Widths | | | Solve | Hard | | |
| 892. Surface Area of 3D Shapes | | | Solve | Easy | | |
| 893. Groups of Special-Equivalent Strings | | | Solve | Medium | | |
| 896. Monotonic Array | | | Solve | Easy | | |
| 898. Bitwise ORs of Subarrays | | | Solve | Medium | - | |
| 900. RLE Iterator | | | Solve | Medium | | |
| 902. Numbers At Most N Given Digit Set | | | Solve | Hard | | |
| 904. Fruit Into Baskets | | | Solve | Medium | | |
| 905. Sort Array By Parity | | | Solve | Easy | | |
| 907. Sum of Subarray Minimums | | | Solve | Medium | | |
| 908. Smallest Range I | | | Solve | Easy | | |
| 909. Snakes and Ladders | | | Solve | Medium | | |
| 910. Smallest Range II | | | Solve | Medium | | |
| 911. Online Election | | | Solve | Medium | | |
| 912. Sort an Array | | | Solve | Medium | | |
| 914. X of a Kind in a Deck of Cards | | | Solve | Easy | | |
| 915. Partition Array into Disjoint Intervals | | | Solve | Medium | | |
| 916. Word Subsets | | | Solve | Medium | | |
| 918. Maximum Sum Circular Subarray | | | Solve | Medium | | |
| 922. Sort Array By Parity II | | | Solve | Easy | | |
| 923. 3Sum With Multiplicity | | | Solve | Medium | | |
| 924. Minimize Malware Spread | | | Solve | Hard | | |
| 927. Three Equal Parts | | | Solve | Hard | | |
| 928. Minimize Malware Spread II | | | Solve | Hard | | |
| 929. Unique Email Addresses | | | Solve | Easy | | |
| 930. Binary Subarrays With Sum | | | Solve | Medium | | |
| 931. Minimum Falling Path Sum | | | Solve | Medium | | |
| 932. Beautiful Array | | | Solve | Medium | | |
| 934. Shortest Bridge | | | Solve | Medium | | |
| 937. Reorder Data in Log Files | | | Solve | Medium | | |
| 939. Minimum Area Rectangle | | | Solve | Medium | | |
| 941. Valid Mountain Array | | | Solve | Easy | | |
| 942. DI String Match | | | Solve | Easy | | |
| 943. Find the Shortest Superstring | | | Solve | Hard | - | |
| 944. Delete Columns to Make Sorted | | | Solve | Easy | | |
| 945. Minimum Increment to Make Array Unique | | | Solve | Medium | | |