| 169. Majority Element | | | Solve | Easy | | |
| 229. Majority Element II | | | Solve | Medium | | |
| 299. Bulls and Cows | | | Solve | Medium | | |
| 347. Top K Frequent Elements | | | Solve | Medium | | |
| 358. Rearrange String k Distance Apart | | | Solve | Hard | | |
| 383. Ransom Note | | | Solve | Easy | | |
| 387. First Unique Character in a String | | | Solve | Easy | | |
| 451. Sort Characters By Frequency | | | Solve | Medium | | |
| 594. Longest Harmonious Subsequence | | | Solve | Easy | | |
| 621. Task Scheduler | | | Solve | Medium | | |
| 692. Top K Frequent Words | | | Solve | Medium | | |
| 767. Reorganize String | | | Solve | Medium | | |
| 811. Subdomain Visit Count | | | Solve | Medium | | |
| 819. Most Common Word | | | Solve | Easy | | |
| 869. Reordered Power of 2 | | | Solve | Medium | | |
| 884. Uncommon Words from Two Sentences | | | Solve | Easy | | |
| 900. RLE Iterator | | | Solve | Medium | | |
| 914. X of a Kind in a Deck of Cards | | | Solve | Easy | | |
| 923. 3Sum With Multiplicity | | | Solve | Medium | | |
| 945. Minimum Increment to Make Array Unique | | | Solve | Medium | | |
| 992. Subarrays with K Different Integers | | | Solve | Hard | | |
| 1010. Pairs of Songs With Total Durations Divisible by 60 | | | Solve | Medium | | |
| 1054. Distant Barcodes | | | Solve | Medium | | |
| 1079. Letter Tile Possibilities | | | Solve | Medium | | |
| 1090. Largest Values From Labels | | | Solve | Medium | | |
| 1121. Divide Array Into Increasing Sequences | | | Solve | Hard | | |
| 1128. Number of Equivalent Domino Pairs | | | Solve | Easy | | |
| 1160. Find Words That Can Be Formed by Characters | | | Solve | Easy | | |
| 1189. Maximum Number of Balloons | | | Solve | Easy | | |
| 1198. Find Smallest Common Element in All Rows | | | Solve | Medium | | |
| 1213. Intersection of Three Sorted Arrays | | | Solve | Easy | | |
| 1221. Split a String in Balanced Strings | | | Solve | Easy | | |
| 1267. Count Servers that Communicate | | | Solve | Medium | | |
| 1347. Minimum Number of Steps to Make Two Strings Anagram | | | Solve | Medium | | |
| 1356. Sort Integers by The Number of 1 Bits | | | Solve | Easy | | |
| 1365. How Many Numbers Are Smaller Than the Current Number | | | Solve | Easy | | |
| 1366. Rank Teams by Votes | | | Solve | Medium | | |
| 1370. Increasing Decreasing String | | | Solve | Easy | | |
| 1394. Find Lucky Integer in an Array | | | Solve | Easy | | |
| 1400. Construct K Palindrome Strings | | | Solve | Medium | | |
| 1419. Minimum Number of Frogs Croaking | | | Solve | Medium | | |
| 1481. Least Number of Unique Integers after K Removals | | | Solve | Medium | | |
| 1497. Check If Array Pairs Are Divisible by k | | | Solve | Medium | | |
| 1512. Number of Good Pairs | | | Solve | Easy | | |
| 1519. Number of Nodes in the Sub-Tree With the Same Label | | | Solve | Medium | | |
| 1603. Design Parking System | | | Solve | Easy | | |
| 1612. Check If Two Expression Trees are Equivalent | | | Solve | Medium | | |
| 1657. Determine if Two Strings Are Close | | | Solve | Medium | | |
| 1684. Count the Number of Consistent Strings | | | Solve | Easy | | |
| 1704. Determine if String Halves Are Alike | | | Solve | Easy | | |
