Cody

Problem 2223. Cumulative difference

Solution 2650478

Submitted on 4 Jul 2020
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Test Suite

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

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

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

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

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

y_correct = 0×1 empty double column vector

Index exceeds the number of array elements (0). Error in CumDiff (line 3) y(1)=x(1); Error in Test5 (line 3) assert(isequal(CumDiff(x),y_correct))

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

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