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: 3
Question
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: 3
Solution
This problem is asking for the number of trailing zeroes in the binary representation of a given integer. Here's how you can solve it:
-
Convert the integer to binary: In Python, you can use the built-in function
bin(). This function converts an integer to a binary string. For example,bin(18)returns'0b10010'. -
Count the trailing zeroes: You can do this by reversing the binary string and counting the number of zeroes before the first one. In Python, you can use the
str.rfind()method, which returns the last index where the specified substring is found. For example,('0b10010'[::-1]).find('1')returns1, which is the number of trailing zeroes in the binary representation of18.
Here's the Python code that implements these steps:
def count_trailing_zeroes(A):
# Convert A to binary and reverse the string
binary = bin(A)[2:][::-1]
# Find the first '1' in the reversed string
first_one = binary.find('1')
# Return the number of trailing zeroes
return first_one
You can test this function with the provided examples:
print(count_trailing_zeroes(18)) # Output: 1
print(count_trailing_zeroes(8)) # Output: 3
This function works because the binary
Similar Questions
Count the number of trailing 0s in the factorial of a given number.Input FormatThe first line of input contains T - the number of test cases. It is followed by T lines, each containing an integer N.Output FormatFor each test case, print the number of trailing 0s in N!, separated by a new line.Constraints1 <= T <= 100001 <= N <= 1015ExampleInput325100Output0124Explanation2! = 2 [No trailing zeros]5! = 120 [Trailing zeros=1]
Input 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.
Write a function that takes an integer and returns the number of 1 bits it has.Problem Constraints0 <= A <= 4294967295Input FormatFirst and only argument contains integer AOutput FormatReturn an integer as the answerExample InputInput1: 11Example OutputOutput1:3Example ExplanationExplaination1:11 is represented as 1101 in binary
Problem DescriptionYou are given a binary string B of length L which contains K ones and remaining zeros. You are required to place the K ones in the binary string in such a way that the longest consecutive zeros have the least length possible. Once such a binary string is constructed, you are required to print the length of the contiguous block of zeros, which has the largest length.Constraints0 <= K <= L1 <= L <= 10^6InputSingle line consisting of two space separated integers denoting L and K.OutputPrint a single integer denoting the length of the longest consecutive zeros as per the problem.Time Limit (secs)1ExamplesExample 1Input3 1Output1ExplanationB is of length 3 and it has 1 one's.So the possible strings as per the problem are 010, 001, 100.In the first case, the maximum length of consecutive zeros is 1 whereas in the other two cases it is 2. Hence the constructed binary string is 010 and the output is 1.Example 2Input3 3Output0ExplanationB is of length 3 and it has all three one's. There is no block of zeros, hence the output is 0.
Given an integer input , whether the given input is "Positive" or "Negative" or "Zero" and print the corresponding messageInput Format:Enter an integer as a input Output Format: Print the output as "Negative" or "Positive" or "Zero"Constraints:1 <= INPUT <= 10^15Sample Input 1:-98Sample Output 1:NEGATIVESample Input 2:0Sample Output 2:ZERO
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