| 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 |  |  |