Cody

# Problem 2223. Cumulative difference

Solution 1883296

Submitted on 24 Jul 2019
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### Test Suite

Test Status Code Input and Output
1   Fail
x = [1 3 5 7]; y_correct = [1 2 1 -2]; assert(isequal(CumDiff(x),y_correct))

z = 3 5 7

Assertion failed.

2   Fail
x = [23 3 15 16]; y_correct = [23 -20 -11 -25]; assert(isequal(CumDiff(x),y_correct))

z = 3 15 16

Assertion failed.

3   Pass
x = [5]; y_correct = [5]; assert(isequal(CumDiff(x),y_correct))

z = []

4   Fail
x = 43:49; y_correct = [ 43 1 -42 -86 -131 -177 -224]; assert(isequal(CumDiff(x),y_correct))

z = 44 45 46 47 48 49

Assertion failed.

5   Pass
x = zeros(0,1); y_correct = zeros(0,1) assert(isequal(CumDiff(x),y_correct))

y_correct = 0×1 empty double column vector z = 0×1 empty double column vector

6   Fail
x = [1 10 100 1000 10000]; y_correct = [1 9 89 889 8889]; assert(isequal(CumDiff(x),y_correct))

z = 10 100 1000 10000

Assertion failed.