Given a positive integer num represented as a string, return the integer num without trailing zeros as a string. Example 1:Input: num = "51230100"Output: "512301"Explanation: Integer "51230100" has 2 trailing zeros, we remove them and return integer "512301".Example 2:Input: num = "123"Output: "123"Explanation: Integer "123" has no trailing zeros, we return integer "123".
Question
Given a positive integer num represented as a string, return the integer num without trailing zeros as a string. Example 1:Input: num = "51230100"Output: "512301"Explanation: Integer "51230100" has 2 trailing zeros, we remove them and return integer "512301".Example 2:Input: num = "123"Output: "123"Explanation: Integer "123" has no trailing zeros, we return integer "123".
Solution
Sure, here is a Python solution for the problem:
def remove_trailing_zeros(num):
# Convert the string to an integer
num = int(num)
# Convert the integer back to a string, which automatically removes trailing zeros
num = str(num)
# Return the result
return num
You can use this function like this:
print(remove_trailing_zeros("51230100")) # Output: "512301"
print(remove_trailing_zeros("123")) # Output: "123"
This function works by first converting the input string to an integer. This automatically removes any trailing zeros because they are not significant in an integer. Then it converts the integer back to a string and returns the result.
Similar Questions
Given an integer A, count and return the number of trailing zeroes.Problem Constraints1 <= A <= 109Input FormatFirst and only argument is an integer A.Output FormatReturn an integer denoting the count of trailing zeroes.Example InputInput 1: A = 18Input 2: A = 8Example OutputOutput 1: 1Output 2: 3Example ExplanationExplanation 1: 18 in binary is represented as: 10010, there is 1 trailing zero.Explanation 2: 8 in binary is represented as: 1000, there are 3 trailing zeroes.
Given a binary representation in the form of a string(s) of a number n, the task is to find a binary representation of n+1.Note: Output binary string should not contain leading zeros.Example 1:Input: s = "10"Output: 11Explanation: "10" is the binary representation of 2 and binary representation of 3 is "11"Example 2:Input: s = "111"Output: 1000Explanation: "111" is the binary representation of 7 and binary representation of 8 is "1000"Your Task: You don't need to read input or print anything. Complete the function binaryNextNumber()which takes s as input parameter and returns the string.Expected Time Complexity: O(n)Expected Auxiliary Space: O(n) to store resultant string Constraints:1 <= n <= 105
Which built-in method returns the string representation ofthe number’s value ?
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