sorting
Easy
| Number | Note | 
|---|---|
| 1051. Height Checker | |
| 1122. Relative Sort Array | count ocurrence in arr1 with defaultdict, find unseen, set arr2, multiply with occurence | 
| 1365. How Many Numbers Are Smaller Than the Current Number | lambda row[k]with reverse | 
| 1637. Widest Vertical Area Between Two Points Containing No Points | sort and ignore the y, find max in a short way | 
| 2144. Minimum Cost of Buying Candies With Discount | |
| 2357. Make Array Zero by Subtracting Equal Amounts | 
Medium
| Number | Note | 
|---|---|
| 2089. Find Target Indices After Sorting Array | 1 loop, 2 count smaller and target, return list(range(...)) |