# coding:utf-8
#JSRUN引擎2.0,支持多达30种语言在线运行,全仿真在线交互输入输出。
tmp_list = [9, 8, 7, 6, 5, 5, 5, 5, 4, 3, 2, 1]
def quick_sort(arr):
if len(arr) <= 1:
return arr
# choice first/middle/last
pivot = arr[len(arr)//2]
left = [x for x in arr if x < pivot]
middle = [x for x in arr if x == pivot]
right = [x for x in arr if x > pivot]
return quick_sort(left) + middle + quick_sort(right)
print(quick_sort(tmp_list))