| 1465. Maximum Area of a Piece of Cake After Horizontal and Vertical Cuts |  |  | Solve | Medium |  |  | 
 | 1466. Reorder Routes to Make All Paths Lead to the City Zero |  |  | Solve | Medium |  |  | 
 | 1468. Calculate Salaries |  |  | Solve | Medium |  |  | 
 | 1471. The k Strongest Values in an Array |  |  | Solve | Medium |  |  | 
 | 1472. Design Browser History |  |  | Solve | Medium |  |  | 
 | 1476. Subrectangle Queries |  |  | Solve | Medium |  |  | 
 | 1477. Find Two Non-overlapping Sub-arrays Each With Target Sum |  |  | Solve | Medium |  |  | 
 | 1481. Least Number of Unique Integers after K Removals |  |  | Solve | Medium |  |  | 
 | 1482. Minimum Number of Days to Make m Bouquets |  |  | Solve | Medium |  |  | 
 | 1485. Clone Binary Tree With Random Pointer |  |  | Solve | Medium |  |  | 
 | 1487. Making File Names Unique |  |  | Solve | Medium |  |  | 
 | 1488. Avoid Flood in The City |  |  | Solve | Medium |  |  | 
 | 1490. Clone N-ary Tree |  |  | Solve | Medium |  |  | 
 | 1492. The kth Factor of n |  |  | Solve | Medium |  |  | 
 | 1493. Longest Subarray of 1's After Deleting One Element |  |  | Solve | Medium |  |  | 
 | 1497. Check If Array Pairs Are Divisible by k |  |  | Solve | Medium |  |  | 
 | 1498. Number of Subsequences That Satisfy the Given Sum Condition |  |  | Solve | Medium |  |  | 
 | 1500. Design a File Sharing System |  |  | Solve | Medium |  |  | 
 | 1501. Countries You Can Safely Invest In |  |  | Solve | Medium | - |  | 
 | 1503. Last Moment Before All Ants Fall Out of a Plank |  |  | Solve | Medium |  |  | 
 | 1504. Count Submatrices With All Ones |  |  | Solve | Medium |  |  | 
 | 1506. Find Root of N-Ary Tree |  |  | Solve | Medium |  |  | 
 | 1508. Range Sum of Sorted Subarray Sums |  |  | Solve | Medium |  |  | 
 | 1509. Minimum Difference Between Largest and Smallest Value in Three Moves |  |  | Solve | Medium |  |  | 
 | 1513. Number of Substrings With Only 1s |  |  | Solve | Medium |  |  | 
 | 1514. Path with Maximum Probability |  |  | Solve | Medium |  |  | 
 | 1519. Number of Nodes in the Sub-Tree With the Same Label |  |  | Solve | Medium |  |  | 
 | 1522. Diameter of N-Ary Tree |  |  | Solve | Medium |  |  | 
 | 1524. Number of Sub-arrays With Odd Sum |  |  | Solve | Medium |  |  | 
 | 1525. Number of Good Ways to Split a String |  |  | Solve | Medium |  |  | 
 | 1529. Minimum Suffix Flips |  |  | Solve | Medium |  |  | 
 | 1530. Number of Good Leaf Nodes Pairs |  |  | Solve | Medium |  |  | 
 | 1532. The Most Recent Three Orders |  |  | Solve | Medium | - |  | 
 | 1533. Find the Index of the Large Integer |  |  | Solve | Medium |  |  | 
 | 1535. Find the Winner of an Array Game |  |  | Solve | Medium |  |  | 
 | 1536. Minimum Swaps to Arrange a Binary Grid |  |  | Solve | Medium |  |  | 
 | 1538. Guess the Majority in a Hidden Array |  |  | Solve | Medium |  |  | 
 | 1540. Can Convert String in K Moves |  |  | Solve | Medium |  |  | 
 | 1541. Minimum Insertions to Balance a Parentheses String |  |  | Solve | Medium |  |  | 
 | 1545. Find Kth Bit in Nth Binary String |  |  | Solve | Medium |  |  | 
 | 1546. Maximum Number of Non-Overlapping Subarrays With Sum Equals Target |  |  | Solve | Medium |  |  | 
 | 1549. The Most Recent Orders for Each Product |  |  | Solve | Medium | - |  | 
 | 1551. Minimum Operations to Make Array Equal |  |  | Solve | Medium |  |  | 
 | 1552. Magnetic Force Between Two Balls |  |  | Solve | Medium |  |  | 
 | 1554. Strings Differ by One Character |  |  | Solve | Medium |  |  | 
 | 1555. Bank Account Summary |  |  | Solve | Medium |  |  | 
 | 1557. Minimum Number of Vertices to Reach All Nodes |  |  | Solve | Medium |  |  | 
 | 1558. Minimum Numbers of Function Calls to Make Target Array |  |  | Solve | Medium |  |  | 
 | 1559. Detect Cycles in 2D Grid |  |  | Solve | Medium |  |  | 
 | 1561. Maximum Number of Coins You Can Get |  |  | Solve | Medium |  |  |