|  | 351. Android Unlock Patterns |  |  | Solve | Medium |  |  | 
|  | 464. Can I Win |  |  | Solve | Medium |  |  | 
|  | 465. Optimal Account Balancing |  |  | Solve | Hard |  |  | 
|  | 473. Matchsticks to Square |  |  | Solve | Medium |  |  | 
|  | 526. Beautiful Arrangement |  |  | Solve | Medium |  |  | 
|  | 638. Shopping Offers |  |  | Solve | Medium |  |  | 
|  | 691. Stickers to Spell Word |  |  | Solve | Hard |  |  | 
|  | 698. Partition to K Equal Sum Subsets |  |  | Solve | Medium |  |  | 
|  | 805. Split Array With Same Average |  |  | Solve | Hard |  |  | 
|  | 847. Shortest Path Visiting All Nodes |  |  | Solve | Hard |  |  | 
|  | 943. Find the Shortest Superstring |  |  | Solve | Hard | - |  | 
|  | 996. Number of Squareful Arrays |  |  | Solve | Hard |  |  | 
|  | 1066. Campus Bikes II |  |  | Solve | Medium |  |  | 
|  | 1125. Smallest Sufficient Team |  |  | Solve | Hard |  |  | 
|  | 1255. Maximum Score Words Formed by Letters |  |  | Solve | Hard |  |  | 
|  | 1349. Maximum Students Taking Exam |  |  | Solve | Hard |  |  | 
|  | 1434. Number of Ways to Wear Different Hats to Each Other |  |  | Solve | Hard |  |  | 
|  | 1494. Parallel Courses II |  |  | Solve | Hard |  |  | 
|  | 1595. Minimum Cost to Connect Two Groups of Points |  |  | Solve | Hard |  |  | 
|  | 1617. Count Subtrees With Max Distance Between Cities |  |  | Solve | Hard |  |  | 
|  | 1655. Distribute Repeating Integers |  |  | Solve | Hard |  |  | 
|  | 1659. Maximize Grid Happiness |  |  | Solve | Hard |  |  | 
|  | 1681. Minimum Incompatibility |  |  | Solve | Hard |  |  | 
|  | 1723. Find Minimum Time to Finish All Jobs |  |  | Solve | Hard |  |  | 
|  | 1755. Closest Subsequence Sum |  |  | Solve | Hard |  |  | 
|  | 1799. Maximize Score After N Operations |  |  | Solve | Hard |  |  | 
|  | 1815. Maximum Number of Groups Getting Fresh Donuts |  |  | Solve | Hard |  |  | 
|  | 1879. Minimum XOR Sum of Two Arrays |  |  | Solve | Hard |  |  | 
|  | 1947. Maximum Compatibility Score Sum |  |  | Solve | Medium |  |  | 
|  | 1986. Minimum Number of Work Sessions to Finish the Tasks |  |  | Solve | Medium |  |  | 
|  | 1994. The Number of Good Subsets |  |  | Solve | Hard |  |  | 
|  | 2002. Maximum Product of the Length of Two Palindromic Subsequences |  |  | Solve | Medium |  |  | 
|  | 2035. Partition Array Into Two Arrays to Minimize Sum Difference |  |  | Solve | Hard |  |  | 
|  | 2152. Minimum Number of Lines to Cover Points |  |  | Solve | Medium |  |  | 
|  | 2172. Maximum AND Sum of Array |  |  | Solve | Hard |  |  | 
|  | 2184. Number of Ways to Build Sturdy Brick Wall |  |  | Solve | Medium |  |  | 
|  | 2247. Maximum Cost of Trip With K Highways |  |  | Solve | Hard | - |  | 
|  | 2305. Fair Distribution of Cookies |  |  | Solve | Medium |  |  | 
|  | 2403. Minimum Time to Kill All Monsters |  |  | Solve | Hard |  |  | 
|  | 2572. Count the Number of Square-Free Subsets |  |  | Solve | Medium |  |  | 
|  | 2741. Special Permutations |  |  | Solve | Medium | - |  | 
|  | 2791. Count Paths That Can Form a Palindrome in a Tree |  |  | Solve | Hard | - |  | 
|  | 2992. Number of Self-Divisible Permutations |  |  | Solve | Medium | - |  | 
|  | 3003. Maximize the Number of Partitions After Operations |  |  | Solve | Hard | - |  | 
|  | 3149. Find the Minimum Cost Array Permutation |  |  | Solve | Hard | - |  | 
|  | 3276. Select Cells in Grid With Maximum Score |  |  | Solve | Hard | - |  | 
|  | 3283. Maximum Number of Moves to Kill All Pawns |  |  | Solve | Hard | - |  |