011概率简单数值题short
Pinned Surjection to Three Desks
题目
Five labeled tasks are assigned to three labeled desks A, B, and C. Task 1 is forced to desk A. How many assignments use all three desks at least once?
解题计时
0:00
提交作答时记录，用于后续平均用时统计。
你的答案
题目
Five labeled tasks are assigned to three labeled desks A, B, and C. Task 1 is forced to desk A. How many assignments use all three desks at least once?
解题计时
0:00
提交作答时记录，用于后续平均用时统计。
你的答案