| 3151. Special Array I | Solution | Solve | Easy | | |
| 3152. Special Array II | Solution | Solve | Medium | | |
| 3153. Sum of Digit Differences of All Pairs | Solution | Solve | Medium | | |
| 3154. Find Number of Ways to Reach the K-th Stair | Solution | Solve | Hard | | |
| 3155. Maximum Number of Upgradable Servers | Solution | Solve | Medium | | |
| 3156. Employee Task Duration and Concurrent Tasks | Solution | Solve | Hard | - | |
| 3157. Find the Level of Tree with Minimum Sum | Solution | Solve | Medium | | |
| 3158. Find the XOR of Numbers Which Appear Twice | Solution | Solve | Easy | | |
| 3159. Find Occurrences of an Element in an Array | Solution | Solve | Medium | | |
| 3160. Find the Number of Distinct Colors Among the Balls | Solution | Solve | Medium | | |
| 3161. Block Placement Queries | Solution | Solve | Hard | | |
| 3162. Find the Number of Good Pairs I | Solution | Solve | Easy | | |
| 3163. String Compression III | Solution | Solve | Medium | | |
| 3164. Find the Number of Good Pairs II | Solution | Solve | Medium | | |
| 3165. Maximum Sum of Subsequence With Non-adjacent Elements | Solution | Solve | Hard | | |
| 3166. Calculate Parking Fees and Duration | Solution | Solve | Medium | - | |
| 3167. Better Compression of String | Solution | Solve | Medium | | |
| 3168. Minimum Number of Chairs in a Waiting Room | Solution | Solve | Easy | | |
| 3169. Count Days Without Meetings | Solution | Solve | Medium | | |
| 3170. Lexicographically Minimum String After Removing Stars | Solution | Solve | Medium | | |
| 3171. Find Subarray With Bitwise OR Closest to K | Solution | Solve | Hard | | |
| 3172. Second Day Verification | Solution | Solve | Easy | - | |
| 3173. Bitwise OR of Adjacent Elements | Solution | Solve | Easy | | |
| 3174. Clear Digits | Solution | Solve | Easy | | |
| 3175. Find The First Player to win K Games in a Row | Solution | Solve | Medium | | |
| 3176. Find the Maximum Length of a Good Subsequence I | Solution | Solve | Medium | | |
| 3177. Find the Maximum Length of a Good Subsequence II | Solution | Solve | Hard | | |
| 3178. Find the Child Who Has the Ball After K Seconds | Solution | Solve | Easy | | |
| 3179. Find the N-th Value After K Seconds | Solution | Solve | Medium | | |
| 3180. Maximum Total Reward Using Operations I | Solution | Solve | Medium | | |
| 3181. Maximum Total Reward Using Operations II | Solution | Solve | Hard | | |
| 3182. Find Top Scoring Students | Solution | Solve | Medium | - | |
| 3183. The Number of Ways to Make the Sum | Solution | Solve | Medium | - | |
| 3184. Count Pairs That Form a Complete Day I | Solution | Solve | Easy | | |
| 3185. Count Pairs That Form a Complete Day II | Solution | Solve | Medium | | |
| 3186. Maximum Total Damage With Spell Casting | Solution | Solve | Medium | | |
| 3187. Peaks in Array | Solution | Solve | Hard | | |
| 3188. Find Top Scoring Students II | Solution | Solve | Hard | - | |
| 3189. Minimum Moves to Get a Peaceful Board | Solution | Solve | Medium | - | |
| 3190. Find Minimum Operations to Make All Elements Divisible by Three | Solution | Solve | Easy | | |
| 3191. Minimum Operations to Make Binary Array Elements Equal to One I | Solution | Solve | Medium | | |
| 3192. Minimum Operations to Make Binary Array Elements Equal to One II | Solution | Solve | Medium | | |
| 3193. Count the Number of Inversions | Solution | Solve | Hard | | |
| 3194. Minimum Average of Smallest and Largest Elements | Solution | Solve | Easy | | |
| 3195. Find the Minimum Area to Cover All Ones I | Solution | Solve | Medium | | |
| 3196. Maximize Total Cost of Alternating Subarrays | Solution | Solve | Medium | | |
| 3197. Find the Minimum Area to Cover All Ones II | Solution | Solve | Hard | | |
| 3198. Find Cities in Each State | Solution | Solve | Easy | - | |
| 3199. Count Triplets with Even XOR Set Bits I | Solution | Solve | Easy | | |
| 3200. Maximum Height of a Triangle | Solution | Solve | Easy | | |
