Change the dir structure slightly

This commit is contained in:
Marina von Steinkirch 2018-06-14 15:50:29 -07:00
parent 6b6fe21db3
commit 2f4a9638c0
184 changed files with 0 additions and 21 deletions
interview_problems

View file

@ -0,0 +1,31 @@
#!/usr/bin/env python
__author__ = "bt3"
def quick_sort(array):
if len(array) < 2:
return array
# partition
ipivot = len(array)//2
pivot = array[ipivot]
new_array = array[:ipivot] + array[ipivot+1:]
left = [x for x in new_array if x <= pivot]
right = [x for x in new_array if x > pivot]
return quick_sort(left) + [pivot] + quick_sort(right)
if __name__ == '__main__':
array = [3, 1, 6, 0, 7, 19, 7, 2, 22]
sorted = [0, 1, 2, 3, 6, 7, 7, 19, 22]
assert(quick_sort(array) == sorted)
array = []
assert(quick_sort(array) == array)
array = [1]
assert(quick_sort(array) == array)