Problem 43222. Persistence will help you solve almost any problem.

Solution 2173719

Submitted on 25 Mar 2020
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Test Suite

Test Status Code Input and Output
1   Fail
for i = 1:100 a = counterfun; validatestring(char(a), {char(i)}) assert(isequal(a,i)) end

Error: File: counterfun.m Line: 2 Column: 14 Using the variable 'n' before a persistent variable declaration is not supported. Error in Test1 (line 2) a = counterfun;