和此题类似，这里询问下面代码中 moo 的执行次数

sorted = false
while (not sorted):
   sorted = true
   moo
   for i = 0 to N-2:
      if A[i+1] < A[i]:
         swap A[i], A[i+1]
         sorted = false

有无大佬解惑/kel