Cody

Problem 42405. Divisible by 3

Solution 1191402

Submitted on 17 May 2017 by mohammad z
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Test Suite

Test Status Code Input and Output
1   Pass
filetext = fileread('divisible_by_3.m'); assert(isempty(strfind(filetext, '*')),'* forbidden') assert(isempty(strfind(filetext, 'mtimes')),'mtimes() forbidden') assert(isempty(strfind(filetext, 'cross')),'cross() forbidden') assert(isempty(strfind(filetext, 'prod')),'prod() forbidden') assert(isempty(strfind(filetext, 'cumprod')),'cumprod() forbidden') assert(isempty(strfind(filetext, 'times')),'times() forbidden') assert(isempty(strfind(filetext, 'mldivide')),'mldivide() forbidden') assert(isempty(strfind(filetext, 'mrdivide')),'mrdivide() forbidden') assert(isempty(strfind(filetext, '/')),'/ forbidden') assert(isempty(strfind(filetext, '\')),'\ forbidden') assert(isempty(strfind(filetext, '^')),'^ forbidden') assert(isempty(strfind(filetext, 'dot')),'dot() forbidden') assert(isempty(strfind(filetext, 'rem')),'rem() forbidden') assert(isempty(strfind(filetext, 'mod')),'mod() forbidden') assert(isempty(strfind(filetext, 'round')),'round() forbidden') assert(isempty(strfind(filetext, 'ceil')),'ceil() forbidden') assert(isempty(strfind(filetext, 'floor')),'floor() forbidden') assert(isempty(strfind(filetext, 'java')),'java forbidden')
2   Pass
n_str = '12'; assert(isequal(divisible_by_3(n_str),1))

a = 3 out = 3 tf = logical 1
3   Pass
n_str = '13'; assert(isequal(divisible_by_3(n_str),0))

a = 4 out = 4 tf = logical 0
4   Pass
n_str = '222'; assert(isequal(divisible_by_3(n_str),1))

a = 6 out = 6 tf = logical 1
5   Pass
n_str = '232'; assert(isequal(divisible_by_3(n_str),0))

a = 7 out = 7 tf = logical 0
6   Pass
n_str = '223'; assert(isequal(divisible_by_3(n_str),0))

a = 7 out = 7 tf = logical 0
7   Pass
n_str = '1236127'; assert(isequal(divisible_by_3(n_str),0))

a = 22 a = 4 out = 4 tf = logical 0
8   Pass
n_str = '123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890'; assert(isequal(divisible_by_3(n_str),1))

a = 810 a = 9 out = 9 tf = logical 1
9   Pass
n_str = '1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901'; assert(isequal(divisible_by_3(n_str),0))

a = 811 a = 10 a = 1 out = 1 tf = logical 0
10   Pass
n_str = '123678900000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'; assert(isequal(divisible_by_3(n_str),1))

a = 36 a = 9 out = 9 tf = logical 1
11   Pass
n_str = '123678900000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001'; assert(isequal(divisible_by_3(n_str),0))

a = 37 a = 10 a = 1 out = 1 tf = logical 0
12   Pass
n_str = '3141592653589793238462643383279502884197169399375105820974944592307816406286208998628034825342117067982148086513282306647093844609550582231725359408128481117450284102701938521105559644622948954930381964428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141273724587006606315588174881520920962829254091715364367892590360011330530548820466521384146951941511609433057270365759591953092186117381932611793105118548074462379962749567351885752724891227938183011949129833673362440656643086021394946395224737190702179860943702770539217176293176752384674818467669405132000568127145263560827785771342757789609173637178721468440901224953430146549585371050792279689258923542019956112129021960864034418159813629774771309960518707211349999998372978049951059731732816096318595024459455346908302642522308253344685035261931188171010003137838752886587533208381420617177669147303598253490428755468731159562863882353787593751957781857780532171226806613001927876611195909216420198938095257201065485863278865936153381827968230301952035301852968995773622599413891249721775283479131515574857242454150695950829533116861727855889075098381754637464939319255060400927701671139009848824012858361603563707660104710181942955596198946767837449448255379774726847104047534646208046684259069491293313677028989152104752162056966024058038150193511253382430035587640247496473263914199272604269922796'; assert(isequal(divisible_by_3(n_str),1))

a = 6306 a = 15 a = 6 out = 6 tf = logical 1
13   Pass
n_str = '1010010101011010101001011010100101101010010100101101010011010100101'; assert(isequal(divisible_by_3(n_str),1))

a = 33 a = 6 out = 6 tf = logical 1
14   Pass
ind = randi(4); switch ind case 1 n_str = '12'; assert(isequal(divisible_by_3(n_str),1)) case 2 n_str = '1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901'; assert(isequal(divisible_by_3(n_str),0)) case 3 n_str = '123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890'; assert(isequal(divisible_by_3(n_str),1)) case 4 n_str = '1236127'; assert(isequal(divisible_by_3(n_str),0)) end

a = 3 out = 3 tf = logical 1
15   Pass
ind = randi(4); switch ind case 1 n_str = '1010010101011010101001011010100101101010010100101101010011010100101'; assert(isequal(divisible_by_3(n_str),1)) case 2 n_str = '12'; assert(isequal(divisible_by_3(n_str),1)) case 3 n_str = '123678900000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001'; assert(isequal(divisible_by_3(n_str),0)) case 4 n_str = '13'; assert(isequal(divisible_by_3(n_str),0)) end

a = 33 a = 6 out = 6 tf = logical 1
16   Pass
ind = randi(4); switch ind case 1 n_str = '13'; assert(isequal(divisible_by_3(n_str),0)) case 2 n_str = '123678900000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'; assert(isequal(divisible_by_3(n_str),1)) case 3 n_str = '123678900000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001'; assert(isequal(divisible_by_3(n_str),0)) case 4 n_str = '123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890'; assert(isequal(divisible_by_3(n_str),1)) end

a = 37 a = 10 a = 1 out = 1 tf = logical 0

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