Ask AI
Open a hint-first prompt in a new AI chat. Grok may ask you to confirm before sending.
Open Claude Desktopsorting · inversions · fenwick-tree
The organizer’s problem statement is available at the official source link.
inversion crossings
Visualize Rearranging cartons
Adjacent swaps needed to transform one order into another equal the inversion count after mapping cartons to target ranks.
current order -> destination ranksinversion (i,j): rank[i] > rank[j]swap count = inversion count
- 1
Encode the task
Adjacent swaps needed to transform one order into another equal the inversion count after mapping cartons to target ranks. - 2
Advance the state
Map each carton to its destination rank; every reversed rank pair must cross once. - 3
Read the result
Use the final marked state to identify the requested answer.
Tools
1
2
3
4
5
6
7
8
9
10
11
12
Draft saved locally
|12 lines, 156 charsRun output
Run your code to see output.