| 2236 | Root Equals Sum of Children | TreeBinary Tree | Easy |
| 2239 | Find Closest Number to Zero | Array | Easy |
| 2240 | Number of Ways to Buy Pens and Pencils | MathEnumeration | Medium |
| 2241 | Design an ATM Machine | ArrayGreedyDesign | Medium |
| 2242 | Maximum Score of a Node Sequence | ArrayGraphSorting+1 | Hard |
| 2243 | Calculate Digit Sum of a String | StringSimulation | Easy |
| 2244 | Minimum Rounds to Complete All Tasks | ArrayHash TableGreedy+1 | Medium |
| 2245 | Maximum Trailing Zeros in a Cornered Path | ArrayMatrixPrefix Sum | Medium |
| 2246 | Longest Path With Different Adjacent Characters | ArrayStringTree+3 | Hard |
| 2248 | Intersection of Multiple Arrays | ArrayHash TableSorting+1 | Easy |
| 2249 | Count Lattice Points Inside a Circle | ArrayHash TableMath+2 | Medium |
| 2250 | Count Number of Rectangles Containing Each Point | ArrayHash TableBinary Search+2 | Medium |
| 2251 | Number of Flowers in Full Bloom | ArrayHash TableBinary Search+3 | Hard |
| 2255 | Count Prefixes of a Given String | ArrayString | Easy |
| 2256 | Minimum Average Difference | ArrayPrefix Sum | Medium |
| 2257 | Count Unguarded Cells in the Grid | ArrayMatrixSimulation | Medium |
| 2258 | Escape the Spreading Fire | ArrayBinary SearchBreadth-First Search+1 | Hard |
| 2259 | Remove Digit From Number to Maximize Result | StringGreedyEnumeration | Easy |
| 2260 | Minimum Consecutive Cards to Pick Up | ArrayHash TableSliding Window | Medium |
| 2261 | K Divisible Elements Subarrays | ArrayHash TableTrie+3 | Medium |
| 2262 | Total Appeal of A String | Hash TableStringDynamic Programming | Hard |
| 2264 | Largest 3-Same-Digit Number in String | String | Easy |
| 2265 | Count Nodes Equal to Average of Subtree | TreeDepth-First SearchBinary Tree | Medium |
| 2266 | Count Number of Texts | Hash TableMathString+1 | Medium |
| 2267 | Check if There Is a Valid Parentheses String Path | ArrayDynamic ProgrammingMatrix | Hard |
| 2269 | Find the K-Beauty of a Number | MathStringSliding Window | Easy |
| 2270 | Number of Ways to Split Array | ArrayPrefix Sum | Medium |
| 2271 | Maximum White Tiles Covered by a Carpet | ArrayBinary SearchGreedy+3 | Medium |
| 2272 | Substring With Largest Variance | ArrayDynamic Programming | Hard |
| 2273 | Find Resultant Array After Removing Anagrams | ArrayHash TableString+1 | Easy |
| 2274 | Maximum Consecutive Floors Without Special Floors | ArraySorting | Medium |
| 2275 | Largest Combination With Bitwise AND Greater Than Zero | ArrayHash TableBit Manipulation+1 | Medium |
| 2276 | Count Integers in Intervals | DesignSegment TreeOrdered Set | Hard |
| 2278 | Percentage of Letter in String | String | Easy |
| 2279 | Maximum Bags With Full Capacity of Rocks | ArrayGreedySorting | Medium |
| 2280 | Minimum Lines to Represent a Line Chart | ArrayMathGeometry+2 | Medium |
| 2281 | Sum of Total Strength of Wizards | ArrayStackMonotonic Stack+1 | Hard |
| 2283 | Check if Number Has Equal Digit Count and Digit Value | Hash TableStringCounting | Easy |
| 2284 | Sender With Largest Word Count | ArrayHash TableString+1 | Medium |
| 2285 | Maximum Total Importance of Roads | GreedyGraphSorting+1 | Medium |
| 2286 | Booking Concert Tickets in Groups | Binary SearchDesignBinary Indexed Tree+1 | Hard |
| 2287 | Rearrange Characters to Make Target String | Hash TableStringCounting | Easy |
| 2288 | Apply Discount to Prices | String | Medium |
| 2289 | Steps to Make Array Non-decreasing | ArrayLinked ListStack+1 | Medium |
| 2290 | Minimum Obstacle Removal to Reach Corner | ArrayBreadth-First SearchGraph+3 | Hard |
| 2293 | Min Max Game | ArraySimulation | Easy |
| 2294 | Partition Array Such That Maximum Difference Is K | ArrayGreedySorting | Medium |
| 2295 | Replace Elements in an Array | ArrayHash TableSimulation | Medium |
| 2296 | Design a Text Editor | Linked ListStringStack+3 | Hard |
| 2299 | Strong Password Checker II | String | Easy |