Lab5-Find maximum number in array

def findMaximumNumber(array):
   i = 0
   maxNum = 0
   while(i<len(array)):
      if(maxNum<array[i]):
         maxNum = array[i]
      i = i+1
   return maxNum

def setup():
   A=[28,32,90,60,100,12,50]
   print("maximum of array is",findMaximumNumber(A))

setup()

result

maximum of array is 100