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Practice · 2 of 6

Remove failing scores, count them

CHALLENGE
Difficulty: intermediate+25 XP

Remove every score **below 60** from the list, returning **how many** were removed. Order of survivors must be preserved. Implement process(java.util.ArrayList<Integer> list). Example: [70,50,80,40] → returns 2, list becomes [70, 80].

Back to lesson: Practice: Array lab: two passes, write indices, safe removal