Problem 172. Test if a Number is a Palindrome without using any String Operations

Created by @bmtran (Bryant Tran)

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:rPr><w:b/></w:rPr><w:t>Description</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:t>Given an integer</w:t></w:r><w:r><w:t> </w:t></w:r><w:r><w:rPr><w:i/></w:rPr><w:t>X</w:t></w:r><w:r><w:t>, determine if it is a palindrome number. That is,</w:t></w:r><w:r><w:t> </w:t></w:r><w:r><w:rPr><w:i/></w:rPr><w:t>X</w:t></w:r><w:r><w:t> is equal to the</w:t></w:r><w:r><w:t> </w:t></w:r><w:r><w:rPr><w:i/></w:rPr><w:t>X</w:t></w:r><w:r><w:t> with the digits reversed (with no leading 0s). The twist is that your code cannot use any function or variable name that has either \"str\", \"eval\", \"flip\" or \"printf\" in it.</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"text\"/></w:pPr><w:r><w:rPr><w:b/></w:rPr><w:t>Example</w:t></w:r></w:p><w:p><w:pPr><w:pStyle w:val=\"code\"/></w:pPr><w:r><w:t><![CDATA[    X = 123454321;\n    Y = true;\n\n    X = 1234;\n    Y = false;]]></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

799 Solutions
215 Solvers

Last Solution submitted on May 12, 2023

Last 200 Solutions

Problem Comments

2 Comments

2 Comments

Freddy on 22 Mar 2012

Nice expression for the usage test. Maybe one can add function "dec2base", cause the return type is a String.

Christian Schröder on 15 Jul 2019

The problem description should mention that dec2base isn't allowed either.

Solution Comments

Show comments

Problem Recent Solvers215

Problem Tags

Community Treasure Hunt

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

Start Hunting!

Problem 172. Test if a Number is a Palindrome without using any String Operations

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers215

Suggested Problems

More from this Author56

Problem Tags

Community Treasure Hunt

Problem 172. Test if a Number is a Palindrome without using any String Operations

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Problem Recent Solvers215

Suggested Problems

More from this Author56

Problem Tags

Community Treasure Hunt

Players