Problem 42085. Sum of digits of powers of 2

Created by Mayuri Patil

Solve Later

{"relationships":[{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/document","targetMode":"","relationshipId":"rId1","target":"/matlab/document.xml"},{"relationshipType":"http://schemas.mathworks.com/matlab/code/2013/relationships/output","targetMode":"","relationshipId":"rId2","target":"/matlab/output.xml"}],"parts":[{"partUri":"/matlab/document.xml","relationship":[],"contentType":"application/vnd.mathworks.matlab.code.document+xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n<w:document xmlns:w=\"http://schemas.openxmlformats.org/wordprocessingml/2006/main\"><w:body><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Given n, first, calculate the number 2^n. Then, sum the digits that comprise that number. For example:</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[ Input: n = 7\n 2^n = 128\n Output: b = 1 + 2 + 8 = 11]]></w:t></w:r></w:p></w:body></w:document>"},{"partUri":"/matlab/output.xml","contentType":"text/xml","content":"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?><embeddedOutputs><metaData><evaluationState>manual</evaluationState><layoutState>code</layoutState><outputStatus>ready</outputStatus></metaData><outputArray type=\"array\"/><regionArray type=\"array\"/></embeddedOutputs>"}]}

Solve

Solution Stats

148 Solutions
66 Solvers

Last Solution submitted on Mar 08, 2023

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

Jan Orwat on 29 Apr 2015

Hello Mayuri, please fix the test and add more cases.

goc3 on 30 Sep 2016

This problem has been improved and now has a working test suite.

Problem Recent Solvers66

Problem Tags

Community Treasure Hunt

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

Start Hunting!

Problem 42085. Sum of digits of powers of 2

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers66

Suggested Problems

More from this Author1

Problem Tags

Community Treasure Hunt

Problem 42085. Sum of digits of powers of 2

Solution Stats

Last 200 Solutions

Problem Comments

Problem Recent Solvers66

Suggested Problems

More from this Author1

Problem Tags

Community Treasure Hunt

Players