Cody

Problem 44467. Product of Each Column

Solution 2069931

Submitted on 26 Dec 2019 by anan jeraise
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Test Suite

Test Status Code Input and Output
1   Pass
filetext = fileread('myProd.m'); assert(isempty(strfind(filetext, 'regexp')),'regexp hacks are forbidden')

2   Pass
filetext = fileread('myProd.m'); assert(isempty(strfind(filetext, 'prod')),'Cannot use prod() function')

3   Pass
mat = ones(5); v_correct = ones(1, 5); assert(isequal(myProd(mat),v_correct))

m = 5 n = 5 v = 1 1 1 1 1 v = 1 1 1 1 1 v = 1 1 1 1 1 v = 1 1 1 1 1 v = 1 1 1 1 1 v = 1 1 1 1 1

4   Pass
mat = [ 1, 2, 3, 4; 5, 6, 7, 2; 2, 3, 4, 5]; v_correct = [10, 36, 84, 40]; assert(isequal(myProd(mat),prod(mat)))

m = 3 n = 4 v = 1 1 1 1 v = 1 2 3 4 v = 5 12 21 8 v = 10 36 84 40

5   Pass
m = randi([5,15]); n = randi([5,15]); mat = randi(5, n, m); v_correct = prod(mat); assert(isequal(myProd(mat),prod(mat)))

m = 7 n = 6 v = 1 1 1 1 1 1 v = 3 2 4 1 5 5 v = 12 4 4 2 15 15 v = 12 16 4 6 30 15 v = 12 64 12 30 60 60 v = 60 256 60 60 180 240 v = 300 1280 300 300 900 480 v = 300 1280 1200 1500 900 1920

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