#!/usr/bin/python3.7
# @Time : 2020/8/6 0006 11:12 
list = [1, 2, 5, 4, 9]
print(max(list))
# n = len(list)
# for i in range(0,n):
#     if list[i] > list[i+1]:
#         list[i] ,list[i+1] = list[i+1] ,list[i]
#
# max = list[n]
# print(max)
