How to use zfill() method In Python

N no. of zeros to add
Using zfill() inbuild method to add the zeros to the string.
Printing the updated string

Python3

# Python code to demonstrate
# adding trailing zeros
# using zfill()
 
# initializing string
test_string = 'GFG'
 
# printing original string
print("The original string : " + str(test_string))
 
# No. of zeros required
N = 4
 
# using zfill()
# adding trailing zero
res = test_string + '0' * N
 
#print result
print("The string after adding trailing zeros : " + str(res))

Output

The original string : GFG
The string after adding trailing zeros : GFG0000

Time complexity: O(N) as it iterates over the string.

Auxiliary Space: O(N) as we are creating a new string.

Python | Add trailing Zeros to string

Sometimes, we wish to manipulate a string in such a way in which we might need to add additional zeros at the end of the string; in case of filling the missing bits or any other specific requirement. The solution to this kind of problem is always handy and is good if one has knowledge of it. Let’s discuss certain ways in which this can be solved.

How to use zfill() method In Python

Python3

Python | Add trailing Zeros to string

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