[OC]我需要購買多少個可能有重複的戰利品盒才能得到所有可能的結果？蒙特卡洛模擬

[OC]我需要購買多少個可能有重複的戰利品盒才能得到所有可能的結果？蒙特卡洛模擬

[OC] How many loot boxes with possible duplicates need I buy to get all possible outcomes ? Monte Carlo simulation
from /r/dataisbeautiful