Knowee
Questions
Features
Study Tools

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

Question

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

🧐 Not the exact question you are looking for?Go ask a question

Solution

Sure, here is a Python function that solves the problem:

def count_one_bits(n):
    # Convert the integer to binary and remove the '0b' prefix
    binary_representation = bin(n)[2:]
    
    # Count the number of 1 bits
    num_one_bits = binary_representation.count('1')
    
    return num_one_bits

You can use this function like this:

print(count_one_bits(11))  # Outputs: 3

This function works by first converting the integer to a binary string using the bin function. The bin function returns a string that starts with '0b' to indicate that it is a binary number, so we use slicing ([2:]) to remove this prefix. Then, it counts the number of '1' characters in the binary string using the count method, which is the number of 1 bits in the original integer.

This problem has been solved

Similar Questions

Reverse the bits of an 32 bit unsigned integer A.Problem Constraints0 <= A <= 232Input FormatFirst and only argument of input contains an integer A.Output FormatReturn a single unsigned integer denoting the decimal value of reversed bits.Example InputInput 1: 0Input 2: 3Example OutputOutput 1: 0Output 2: 3221225472Example ExplanationExplanation 1: 00000000000000000000000000000000=> 00000000000000000000000000000000Explanation 2: 00000000000000000000000000000011 => 11000000000000000000000000000000

Given a number, swap the adjacent bits in the binary representation of the number, and print the new number formed after swapping.Input FormatThe first line of input contains T - the number of test cases. Each of the next T lines contains a number N.Output FormatFor each test case, print the new integer formed after swapping adjacent bits, separated by a new line.Constraints1 <= T <= 1000000 <= N <= 109ExampleInput410743100Output51123152

Mike is working on a programming assignment related to bitwise operations. He wants to perform a bitwise OR operation on two given integer values. Write a program that takes two integers as input, performs a bitwise OR (|) operation, and displays the result.Input format :The input consists of two unsigned integers, ip1 and ip2, separated by spaces.Output format :The output displays the result of the bitwise OR operation of the two input values as an unsigned integer.Refer to the sample output for the formatting specifications.Code constraints :In this scenario, the test cases fall under the following constraints:100 ≤ ip1, ip2 ≤ 104Sample test cases :Input 1 :109108Output 1 :109Input 2 :100 100Output 2 :100Input 3 :9899 10000Output 3 :10171

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.

Problem StatementChloe is working on a data encryption project. She inputs an integer and wants to obtain its bitwise complement for the encryption algorithm. Write a program that takes Chloe's input and prints the bitwise complement to enhance the security of the data.Input format :The input consists of an integer n.Output format :The output displays an integer which is the value after performing the bitwise operation.Refer to the sample output for the formatting specifications.Code constraints :In the given scenario, the test cases fall under the following constraints:-100 ≤ n ≤ 100Sample test cases :Input 1 :100Output 1 :-101Input 2 :-100Output 2 :99Input 3 :50Output 3 :-51Input 4 :0Output 4 :-1

1/3

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.