| 1856 | Maximum Subarray Min-Product | ArrayStackMonotonic Stack+1 | Medium |
| 1857 | Largest Color Value in a Directed Graph | Hash TableDynamic ProgrammingGraph+3 | Hard |
| 1859 | Sorting the Sentence | StringSorting | Easy |
| 1860 | Incremental Memory Leak | MathSimulation | Medium |
| 1861 | Rotating the Box | ArrayTwo PointersMatrix | Medium |
| 1862 | Sum of Floored Pairs | ArrayMathBinary Search+1 | Hard |
| 1863 | Sum of All Subset XOR Totals | ArrayMathBacktracking+3 | Easy |
| 1864 | Minimum Number of Swaps to Make the Binary String Alternating | StringGreedy | Medium |
| 1865 | Finding Pairs With a Certain Sum | ArrayHash TableDesign | Medium |
| 1866 | Number of Ways to Rearrange Sticks With K Sticks Visible | MathDynamic ProgrammingCombinatorics | Hard |
| 1869 | Longer Contiguous Segments of Ones than Zeros | String | Easy |
| 1870 | Minimum Speed to Arrive on Time | ArrayBinary Search | Medium |
| 1871 | Jump Game VII | StringDynamic ProgrammingSliding Window+1 | Medium |
| 1872 | Stone Game VIII | ArrayMathDynamic Programming+2 | Hard |
| 1873 | Calculate Special Bonus | Database | Easy |
| 1876 | Substrings of Size Three with Distinct Characters | Hash TableStringSliding Window+1 | Easy |
| 1877 | Minimize Maximum Pair Sum in Array | ArrayTwo PointersGreedy+1 | Medium |
| 1878 | Get Biggest Three Rhombus Sums in a Grid | ArrayMathSorting+3 | Medium |
| 1879 | Minimum XOR Sum of Two Arrays | ArrayDynamic ProgrammingBit Manipulation+1 | Hard |
| 1880 | Check if Word Equals Summation of Two Words | String | Easy |
| 1881 | Maximum Value after Insertion | StringGreedy | Medium |
| 1882 | Process Tasks Using Servers | ArrayHeap (Priority Queue) | Medium |
| 1883 | Minimum Skips to Arrive at Meeting On Time | ArrayDynamic Programming | Hard |
| 1884 | Egg Drop With 2 Eggs and N Floors | MathDynamic Programming | Medium |
| 1886 | Determine Whether Matrix Can Be Obtained By Rotation | ArrayMatrix | Easy |
| 1887 | Reduction Operations to Make the Array Elements Equal | ArraySorting | Medium |
| 1888 | Minimum Number of Flips to Make the Binary String Alternating | StringDynamic ProgrammingSliding Window | Medium |
| 1889 | Minimum Space Wasted From Packaging | ArrayBinary SearchSorting+1 | Hard |
| 1890 | The Latest Login in 2020 | Database | Easy |
| 1893 | Check if All the Integers in a Range Are Covered | ArrayHash TablePrefix Sum | Easy |
| 1894 | Find the Student that Will Replace the Chalk | ArrayBinary SearchSimulation+1 | Medium |
| 1895 | Largest Magic Square | ArrayMatrixPrefix Sum | Medium |
| 1896 | Minimum Cost to Change the Final Value of Expression | MathStringDynamic Programming+1 | Hard |
| 1897 | Redistribute Characters to Make All Strings Equal | Hash TableStringCounting | Easy |
| 1898 | Maximum Number of Removable Characters | ArrayTwo PointersString+1 | Medium |
| 1899 | Merge Triplets to Form Target Triplet | ArrayGreedy | Medium |
| 1900 | The Earliest and Latest Rounds Where Players Compete | Dynamic ProgrammingMemoization | Hard |
| 1901 | Find a Peak Element II | ArrayBinary SearchMatrix | Medium |
| 1903 | Largest Odd Number in String | MathStringGreedy | Easy |
| 1904 | The Number of Full Rounds You Have Played | MathString | Medium |
| 1905 | Count Sub Islands | ArrayDepth-First SearchBreadth-First Search+2 | Medium |
| 1906 | Minimum Absolute Difference Queries | ArrayHash Table | Medium |
| 1907 | Count Salary Categories | Database | Medium |
| 1909 | Remove One Element to Make the Array Strictly Increasing | Array | Easy |
| 1910 | Remove All Occurrences of a Substring | StringStackSimulation | Medium |
| 1911 | Maximum Alternating Subsequence Sum | ArrayDynamic Programming | Medium |
| 1912 | Design Movie Rental System | ArrayHash TableDesign+2 | Hard |
| 1913 | Maximum Product Difference Between Two Pairs | ArraySorting | Easy |
| 1914 | Cyclically Rotating a Grid | ArrayMatrixSimulation | Medium |
| 1915 | Number of Wonderful Substrings | Hash TableStringBit Manipulation+1 | Medium |