Class 4.3 (Chall): Found the Parent

This challenge has been solved by 10.5% of actively participating users.
Position Student Solved
1 First to solve this challenge! VHegde 7 months, 6 days after release (2026-05-16 00:47:27)
2 Second to solve this challenge! KPuzikov 8 months, 1 day after release (2026-06-11 04:18:08)