Question

pls answer computer experts​

Answer 1

Required Answer:-

Question:

• Write a program in python to shift negative numbers to left and positive numbers to right in a list.

Solution:

Here is the code. I have added comments so that you can understand well.

l=[] #declaring list

n=int(input("How many elements?? ")) # asking the user for the number of elements.

print("Enter them...")

for i in range(0,n):

l.append(int(input("Enter: "))) # adding elements in the list.

p=[l[i] for i in range(0,n) if l[i]>=0] # adding all the positive elements of the list l and storing here.

n=[l[i] for i in range(0,n) if l[i]<0] # adding all the negative elements of the list l and storing here.

l=[*n,*p] # Now, list l contains elements of list n at first and then elements of list p at last.

# Now print the list.

print(l)

Explanation:

• In this program, we have created a list named l in which, we have stored all the values entered by the user. Now, we will store all the positive values in list a which is present in the list l. Similarly, we will store all the negative values of list l in list n. Now, we will store elements of list n and p in this list and it gets updated. Now, the list contains negative numbers at the left and positive numbers at the right.

Output is attached.