Cody

# Problem 44467. Product of Each Column

Solution 1593253

Submitted on 27 Jul 2018 by Jiahang Li
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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))

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)))

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)))

v = 4 1 2 5 2 2 v = 4 5 10 25 8 4 v = 12 25 50 125 16 8 v = 12 100 100 375 32 8 v = 48 400 200 750 64 32 v = 240 800 800 1500 128 96