How should I practice Rating Level After Changes?

Start by reading the full statement, solve the visible examples, then compare the pattern against related TikTok online assessment problems in FastPrep.

Is Rating Level After Changes associated with TikTok?

FastPrep tags this as a TikTok online assessment coding practice problem when the problem catalog has that company and stage context.

Rating Level After Changes

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Problem statement

You are given an integer initial, representing a user's initial rating, and an integer array changes. Apply every value in changes to the rating in order.

After all changes have been applied, return the level corresponding to the final rating:

rating < 1000: "beginner"
1000 ≤ rating < 1500: "intermediate"
1500 ≤ rating < 2000: "advanced"
2000 ≤ rating: "pro"

Function

ratingLevelAfterChanges(initial: int, changes: int[]) → String

Examples

Example 1

initial = 1500changes = [-100,-300,450,500,-500,-600]return = "beginner"

The rating changes as follows: 1500 → 1400 → 1100 → 1550 → 2050 → 1550 → 950. Since 950 < 1000, the final level is "beginner".

Constraints

1 ≤ initial ≤ 2500
Applying the values in changes never makes the rating less than 1 or greater than 2500.
The visible source states that O(changes.length^2) time fits within the execution limit.