Dsa
Monotonic Stack
Hard
Monotonic Sequence Indexes
You need to find the indexes of the last elements of strictly increasing subarrays in a given integer array. Implement `find_monotonic_indexes(arr: List[int]) -> List[int]`.
### Input
A single line with space-separated integers representing the array.
### Output
A single line containing space-separated integers representing the indexes of the last elements of strictly increasing subarrays.
### Example
Input:
1 2 3 2 5 6 1 2 3
Output:
2 5 8
Key concepts
monotonic_stackarrayindex
Practise this out loud — free
Start a mock interview on THIS exact question — a voice AI interviewer opens with it, pushes back like a real onsite, then hands you an instant scorecard.
🎙 Practise this question now