Next Round - The Idea

The core insight: you need TWO conditions to be true. First, the score must be positive ($> 0$). Second, the score must be at least the $k$-th contestant's score ($>= threshold$). Many people miss the positive requirement.

Even if someone ties the $k$-th place, they won't advance if that score is zero. You must check BOTH conditions using the AND operator. Store the $k$-th contestant's score as your threshold.

Then iterate through all scores, counting those that pass both checks.