Cody

# Problem 2228. Time Expansion

Solution 1997701

Submitted on 31 Oct 2019
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### Test Suite

Test Status Code Input and Output
1   Fail
n=4 x=[2 1 2 3 4 5 -3 4 -1 2 2 2] y_correct = [2 0 0 0 1 0 0 0 2 0 0 0 3 0 0 0 4 0 0 0 5 0 0 0 -3 0 0 0 4 0 0 0 -1 0 0 0 2 0 0 0 2 0 0 0 2]; assert(isequal(time_expansion(x,n),y_correct))

n = 4 x = 2 1 2 3 4 5 -3 4 -1 2 2 2 y = Columns 1 through 29 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Columns 30 through 36 0 0 0 0 0 0 0

Unable to perform assignment because the left and right sides have a different number of elements. Error in time_expansion (line 3) y(1:n:end)=x Error in Test1 (line 4) assert(isequal(time_expansion(x,n),y_correct))

2   Fail
n=1 x=[2 1 2 3 4 5 -3 4 -1 2 2 2] y_correct=x; assert(isequal(time_expansion(x,n),y_correct))

n = 1 x = 2 1 2 3 4 5 -3 4 -1 2 2 2 y = 1×0 empty double row vector

Unable to perform assignment because the left and right sides have a different number of elements. Error in time_expansion (line 3) y(1:n:end)=x Error in Test2 (line 4) assert(isequal(time_expansion(x,n),y_correct))

3   Fail
n=5 x=[2 1 2 3 4] y_correct=[2 0 0 0 0 1 0 0 0 0 2 0 0 0 0 3 0 0 0 0 4]; assert(isequal(time_expansion(x,n),y_correct))

n = 5 x = 2 1 2 3 4 y = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

Unable to perform assignment because the left and right sides have a different number of elements. Error in time_expansion (line 3) y(1:n:end)=x Error in Test3 (line 4) assert(isequal(time_expansion(x,n),y_correct))