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# Move all negative elements to end in python

Python program for Move all negative elements to end. Here mentioned other language solution.

``````#  Python 3 program for
#  Move all negative elements at the end of array

#  Display list elements
def display( arr,  n) :
i = 0
while (i < n) :
print(arr[i], end ="  ")
i += 1
print()
#  Swap the given list elements
def swap( arr,  start,  end) :
temp = arr[start]
arr[start] = arr[end]
arr[end] = temp
#  Method which is move negative elements
def moveNegative( arr,  n) :
#  first index
i = 0
#  last index
j = n - 1
while (i < j) :
if (arr[i] < 0 and arr[j] >= 0) :
#  When [i] index are have negative value
#  And [j] is positive then swapping elements values
swap(arr, i, j)
#  Modified index
i += 1
j -= 1
elif (arr[i] >= 0) :
#  When element of [i] is not negative
i += 1
else :
j -= 1
def main() :
#  Array which are containing positive and negative values
arr = [1, -1, 3, 2, -7, -5, 11, 6]
n = len(arr)
print("Before Arrange : ")
#  Before move element
display(arr, n)
#  Move negative elements
moveNegative(arr, n)
#  After arrange
print("After Arrange : ")
#  After move element
display(arr, n)

if __name__=="__main__":
main()``````

Output

``````Before Arrange :
1  -1  3  2  -7  -5  11  6
After Arrange :
1  6  3  2  11  -5  -7  -1``````

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