[OC]我需要购买多少个可能有重复的战利品盒才能得到所有可能的结果？蒙特卡洛模拟

[OC]我需要购买多少个可能有重复的战利品盒才能得到所有可能的结果？蒙特卡洛模拟

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