Problem 568. Number of 1s in a binary string

Created by Srivardhini

Solve Later

Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input string is '0000', the output is 0

Solve

Solution Stats

22423 Solutions
9768 Solvers

Last Solution submitted on Apr 17, 2025

Last 200 Solutions

Problem Comments

3 Comments

3 Comments

Ryan McBurney on 30 Aug 2019

Something weird is happening

When I submit the size of my code is -1 and it fails the test suite when it seems to work fine in MATLAB desktop.

Fakhteh Ghalami on 9 Nov 2019

would you please let me know why
sum(x) creates error?

Devon Chen on 10 Nov 2021

Cool problem!

Solution Comments

Show comments

Problem Recent Solvers9768

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 568. Number of 1s in a binary string

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers9768

Suggested Problems

More from this Author1

Problem Tags

Community Treasure Hunt

Problem 568. Number of 1s in a binary string

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers9768

Suggested Problems

More from this Author1

Problem Tags

Community Treasure Hunt

Players