string plus counting Pattern

Recognition Signals

• Check for simultaneous overlapping croaks to assess string plus counting comprehension.
• Look for proper validation of sequence order to detect partial or invalid croaks.
• The candidate correctly splits the string into two halves without index errors.

Solve Flow

1. 1. Define the active state/window.
2. 2. Update state while preserving invariants.
3. 3. Validate with edge-heavy examples.

Common Misses

• Failing to track multiple frogs simultaneously, leading to undercounting.
• Forgetting to include uppercase vowels in the count.
• Replacing underscores inconsistently reduces maximum distance.