| 1668 | Maximum Repeating Substring | StringDynamic ProgrammingString Matching | Easy |
| 1669 | Merge In Between Linked Lists | Linked List | Medium |
| 1670 | Design Front Middle Back Queue | ArrayLinked ListDesign+2 | Medium |
| 1671 | Minimum Number of Removals to Make Mountain Array | ArrayBinary SearchDynamic Programming+1 | Hard |
| 1672 | Richest Customer Wealth | ArrayMatrix | Easy |
| 1673 | Find the Most Competitive Subsequence | ArrayStackGreedy+1 | Medium |
| 1674 | Minimum Moves to Make Array Complementary | ArrayHash TablePrefix Sum | Medium |
| 1675 | Minimize Deviation in Array | ArrayGreedyHeap (Priority Queue)+1 | Hard |
| 1678 | Goal Parser Interpretation | String | Easy |
| 1679 | Max Number of K-Sum Pairs | ArrayHash TableTwo Pointers+1 | Medium |
| 1680 | Concatenation of Consecutive Binary Numbers | MathBit ManipulationSimulation | Medium |
| 1681 | Minimum Incompatibility | ArrayDynamic ProgrammingBit Manipulation+1 | Hard |
| 1683 | Invalid Tweets | Database | Easy |
| 1684 | Count the Number of Consistent Strings | ArrayHash TableString+2 | Easy |
| 1685 | Sum of Absolute Differences in a Sorted Array | ArrayMathPrefix Sum | Medium |
| 1686 | Stone Game VI | ArrayMathGreedy+3 | Medium |
| 1687 | Delivering Boxes from Storage to Ports | ArrayDynamic ProgrammingSegment Tree+4 | Hard |
| 1688 | Count of Matches in Tournament | MathSimulation | Easy |
| 1689 | Partitioning Into Minimum Number Of Deci-Binary Numbers | StringGreedy | Medium |
| 1690 | Stone Game VII | ArrayMathDynamic Programming+1 | Medium |
| 1691 | Maximum Height by Stacking Cuboids | ArrayDynamic ProgrammingSorting | Hard |
| 1693 | Daily Leads and Partners | Database | Easy |
| 1694 | Reformat Phone Number | String | Easy |
| 1695 | Maximum Erasure Value | ArrayHash TableSliding Window | Medium |
| 1696 | Jump Game VI | ArrayDynamic ProgrammingQueue+2 | Medium |
| 1697 | Checking Existence of Edge Length Limited Paths | ArrayTwo PointersUnion Find+2 | Hard |
| 1700 | Number of Students Unable to Eat Lunch | ArrayStackQueue+1 | Easy |
| 1701 | Average Waiting Time | ArraySimulation | Medium |
| 1702 | Maximum Binary String After Change | StringGreedy | Medium |
| 1703 | Minimum Adjacent Swaps for K Consecutive Ones | ArrayGreedySliding Window+1 | Hard |
| 1704 | Determine if String Halves Are Alike | StringCounting | Easy |
| 1705 | Maximum Number of Eaten Apples | ArrayGreedyHeap (Priority Queue) | Medium |
| 1706 | Where Will the Ball Fall | ArrayMatrixSimulation | Medium |
| 1707 | Maximum XOR With an Element From Array | ArrayBit ManipulationTrie | Hard |
| 1710 | Maximum Units on a Truck | ArrayGreedySorting | Easy |
| 1711 | Count Good Meals | ArrayHash Table | Medium |
| 1712 | Ways to Split Array Into Three Subarrays | ArrayTwo PointersBinary Search+1 | Medium |
| 1713 | Minimum Operations to Make a Subsequence | ArrayHash TableBinary Search+1 | Hard |
| 1716 | Calculate Money in Leetcode Bank | Math | Easy |
| 1717 | Maximum Score From Removing Substrings | StringStackGreedy | Medium |
| 1718 | Construct the Lexicographically Largest Valid Sequence | ArrayBacktracking | Medium |
| 1719 | Number Of Ways To Reconstruct A Tree | TreeGraph | Hard |
| 1720 | Decode XORed Array | ArrayBit Manipulation | Easy |
| 1721 | Swapping Nodes in a Linked List | Linked ListTwo Pointers | Medium |
| 1722 | Minimize Hamming Distance After Swap Operations | ArrayDepth-First SearchUnion Find | Medium |
| 1723 | Find Minimum Time to Finish All Jobs | ArrayDynamic ProgrammingBacktracking+2 | Hard |
| 1725 | Number Of Rectangles That Can Form The Largest Square | Array | Easy |
| 1726 | Tuple with Same Product | ArrayHash TableCounting | Medium |
| 1727 | Largest Submatrix With Rearrangements | ArrayGreedySorting+1 | Medium |
| 1728 | Cat and Mouse II | ArrayMathDynamic Programming+5 | Hard |