Problem 44227. Divisible by 21

Solution 1731303

Submitted on 20 Feb 2019 by Dyuman Joshi

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Test	Status	Code Input and Output
1	Pass	filetext = fileread('divisible_by_21.m'); assert(isempty(strfind(filetext, 'mod')),'mod() forbidden') assert(isempty(strfind(filetext, 'rem')),'rem() forbidden') assert(isempty(strfind(filetext, 'fix')),'fix forbidden') assert(isempty(strfind(filetext, 'java')),'java forbidden')
2	Pass	x = 11; assert(isequal(divisible_by_21(x),0))
3	Pass	x = 20; assert(isequal(divisible_by_21(x),0))
4	Pass	x = 217; assert(isequal(divisible_by_21(x),0))
5	Pass	x = 231; assert(isequal(divisible_by_21(x),1))
6	Pass	x = 2240; assert(isequal(divisible_by_21(x),0))
7	Pass	x = 1236123; assert(isequal(divisible_by_21(x),1))