# Why does my solution get an error:"Do not return anything, sort A in-place instead."

• When the input is [0], the error is "Do not return anything, sort A in-place instead." But it can be accepted in IDE.Please help me! Thanks!

``````class Solution:
# @param A a list of integers
# @return nothing, sort in place
def sortColors(self, A):
start = 0
end = len(A)-1
i = 0
while i <= end:
try:
while A[start] == 0:
start += 1
i = start

while A[end] == 2:
end -= 1
except:
return A

if i > end:
return A

if A[i] == 0:
A[start],A[i] = A[i],A[start]
start += 1
if A[i] == 2:
A[end],A[i] = A[i],A[end]
end -= 1
if A[i] == 1:
i += 1

return A``````

• Because you don't have to return the array, you have to swap the elements in the input array to have it sorted

• True. On the other hand, the problem description does not contain "in place" at all. That is a defect in the description. Hope the admin can fix that. @1337c0d3r

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