Program to Reverse a Negative Number in Python

Learn about Program to Reverse a Negative Number in Python in the below code example. Also refer the comments in the code snippet to get a detailed view about what’s actually happening.

Contents

Program to Reverse a Negative Number in Python

# Python program to reverse a negative number

def reverseNum(n):
   n = str(n)
   if n[0] == '-':
      a = n[::-1]
      return f"{n[0]}{a[:-1]}"
   else:
      return n[::-1]

# input
num = '-123'

# function call
print('The reverse number is =', reverseNum(num))

Output:

The reverse number is = -321

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