| 1191. K-Concatenation Maximum Sum | | | Solve | Medium | | |
| 1216. Valid Palindrome III | | | Solve | Hard | | |
| 1218. Longest Arithmetic Subsequence of Given Difference | | | Solve | Medium | | |
| 1220. Count Vowels Permutation | | | Solve | Hard | | |
| 1223. Dice Roll Simulation | | | Solve | Hard | | |
| 1227. Airplane Seat Assignment Probability | | | Solve | Medium | | |
| 1230. Toss Strange Coins | | | Solve | Medium | | |
| 1235. Maximum Profit in Job Scheduling | | | Solve | Hard | | |
| 1246. Palindrome Removal | | | Solve | Hard | | |
| 1255. Maximum Score Words Formed by Letters | | | Solve | Hard | | |
| 1259. Handshakes That Don't Cross | | | Solve | Hard | | |
| 1262. Greatest Sum Divisible by Three | | | Solve | Medium | | |
| 1269. Number of Ways to Stay in the Same Place After Some Steps | | | Solve | Hard | | |
| 1277. Count Square Submatrices with All Ones | | | Solve | Medium | | |
| 1278. Palindrome Partitioning III | | | Solve | Hard | - | |
| 1289. Minimum Falling Path Sum II | | | Solve | Hard | | |
| 1301. Number of Paths with Max Score | | | Solve | Hard | | |
| 1312. Minimum Insertion Steps to Make a String Palindrome | | | Solve | Hard | | |
| 1320. Minimum Distance to Type a Word Using Two Fingers | | | Solve | Hard | | |
| 1326. Minimum Number of Taps to Open to Water a Garden | | | Solve | Hard | | |
| 1334. Find the City With the Smallest Number of Neighbors at a Threshold Distance | | | Solve | Medium | | |
| 1335. Minimum Difficulty of a Job Schedule | | | Solve | Hard | | |
| 1340. Jump Game V | | | Solve | Hard | | |
| 1349. Maximum Students Taking Exam | | | Solve | Hard | | |
| 1359. Count All Valid Pickup and Delivery Options | | | Solve | Hard | | |
| 1363. Largest Multiple of Three | | | Solve | Hard | | |
| 1372. Longest ZigZag Path in a Binary Tree | | | Solve | Medium | | |
| 1373. Maximum Sum BST in Binary Tree | | | Solve | Hard | | |
| 1387. Sort Integers by The Power Value | | | Solve | Medium | | |
| 1388. Pizza With 3n Slices | | | Solve | Hard | | |
| 1395. Count Number of Teams | | | Solve | Medium | | |
| 1397. Find All Good Strings | | | Solve | Hard | | |
| 1402. Reducing Dishes | | | Solve | Hard | | |
| 1406. Stone Game III | | | Solve | Hard | | |
| 1411. Number of Ways to Paint N × 3 Grid | | | Solve | Hard | | |
| 1416. Restore The Array | | | Solve | Hard | | |
| 1420. Build Array Where You Can Find The Maximum Exactly K Comparisons | | | Solve | Hard | | |
| 1425. Constrained Subsequence Sum | | | Solve | Hard | | |
| 1434. Number of Ways to Wear Different Hats to Each Other | | | Solve | Hard | | |
| 1444. Number of Ways of Cutting a Pizza | | | Solve | Hard | | |
| 1449. Form Largest Integer With Digits That Add up to Target | | | Solve | Hard | | |
| 1458. Max Dot Product of Two Subsequences | | | Solve | Hard | | |
| 1463. Cherry Pickup II | | | Solve | Hard | | |
| 1467. Probability of a Two Boxes Having The Same Number of Distinct Balls | | | Solve | Hard | - | |
| 1473. Paint House III | | | Solve | Hard | | |
| 1477. Find Two Non-overlapping Sub-arrays Each With Target Sum | | | Solve | Medium | | |
| 1478. Allocate Mailboxes | | | Solve | Hard | | |
| 1483. Kth Ancestor of a Tree Node | | | Solve | Hard | | |
| 1493. Longest Subarray of 1's After Deleting One Element | | | Solve | Medium | | |
| 1494. Parallel Courses II | | | Solve | Hard | | |
