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Problem 761. Create a matrix X, where each column is a shifted copy of the vector v

Solution 1608692

Submitted on 14 Aug 2018 by Ben Cappello
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

Test Suite

Test Status Code Input and Output
1   Pass
x = (1:5)'; y_correct = [1 5 4 3 2;2 1 5 4 3;3 2 1 5 4;4 3 2 1 5;5 4 3 2 1]; assert(isequal(shifted(x),y_correct))

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

2   Pass
x = (1:3)'; y_correct = [1 3 2;2 1 3;3 2 1]; assert(isequal(shifted(x),y_correct))

y = 0 0 0 0 0 0 0 0 0 y = 1 0 0 2 0 0 3 0 0 x = 3 1 2 y = 1 3 0 2 1 0 3 2 0 x = 2 3 1 y = 1 3 2 2 1 3 3 2 1

3   Pass
x = (1:4)'; y_correct = [1 4 3 2;2 1 4 3;3 2 1 4;4 3 2 1]; assert(isequal(shifted(x),y_correct))

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

4   Pass
x = (1:7)'; y_correct = [1 7 6 5 4 3 2;2 1 7 6 5 4 3;3 2 1 7 6 5 4;... 4 3 2 1 7 6 5;5 4 3 2 1 7 6; 6 5 4 3 2 1 7; 7 6 5 4 3 2 1]; assert(isequal(shifted(x),y_correct))

y = 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 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 y = 1 0 0 0 0 0 0 2 0 0 0 0 0 0 3 0 0 0 0 0 0 4 0 0 0 0 0 0 5 0 0 0 0 0 0 6 0 0 0 0 0 0 7 0 0 0 0 0 0 x = 7 1 2 3 4 5 6 y = 1 7 0 0 0 0 0 2 1 0 0 0 0 0 3 2 0 0 0 0 0 4 3 0 0 0 0 0 5 4 0 0 0 0 0 6 5 0 0 0 0 0 7 6 0 0 0 0 0 x = 6 7 1 2 3 4 5 y = 1 7 6 0 0 0 0 2 1 7 0 0 0 0 3 2 1 0 0 0 0 4 3 2 0 0 0 0 5 4 3 0 0 0 0 6 5 4 0 0 0 0 7 6 5 0 0 0 0 x = 5 6 7 1 2 3 4 y = 1 7 6 5 0 0 0 2 1 7 6 0 0 0 3 2 1 7 0 0 0 4 3 2 1 0 0 0 5 4 3 2 0 0 0 6 5 4 3 0 0 0 7 6 5 4 0 0 0 x = 4 5 6 7 1 2 3 y = 1 7 6 5 4 0 0 2 1 7 6 5 0 0 3 2 1 7 6 0 0 4 3 2 1 7 0 0 5 4 3 2 1 0 0 6 5 4 3 2 0 0 7 6 5 4 3 0 0 x = 3 4 5 6 7 1 2 y = 1 7 6 5 4 3 0 2 1 7 6 5 4 0 3 2 1 7 6 5 0 4 3 2 1 7 6 0 5 4 3 2 1 7 0 6 5 4 3 2 1 0 7 6 5 4 3 2 0 x = 2 3 4 5 6 7 1 y = 1 7 6 5 4 3 2 2 1 7 6 5 4 3 3 2 1 7 6 5 4 4 3 2 1 7 6 5 5 4 3 2 1 7 6 6 5 4 3 2 1 7 7 6 5 4 3 2 1

5   Pass
x = (1:6)'; y_correct = [1 6 5 4 3 2;2 1 6 5 4 3;3 2 1 6 5 4;... 4 3 2 1 6 5;5 4 3 2 1 6; 6 5 4 3 2 1]; assert(isequal(shifted(x),y_correct))

y = 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 0 0 0 0 0 0 0 y = 1 0 0 0 0 0 2 0 0 0 0 0 3 0 0 0 0 0 4 0 0 0 0 0 5 0 0 0 0 0 6 0 0 0 0 0 x = 6 1 2 3 4 5 y = 1 6 0 0 0 0 2 1 0 0 0 0 3 2 0 0 0 0 4 3 0 0 0 0 5 4 0 0 0 0 6 5 0 0 0 0 x = 5 6 1 2 3 4 y = 1 6 5 0 0 0 2 1 6 0 0 0 3 2 1 0 0 0 4 3 2 0 0 0 5 4 3 0 0 0 6 5 4 0 0 0 x = 4 5 6 1 2 3 y = 1 6 5 4 0 0 2 1 6 5 0 0 3 2 1 6 0 0 4 3 2 1 0 0 5 4 3 2 0 0 6 5 4 3 0 0 x = 3 4 5 6 1 2 y = 1 6 5 4 3 0 2 1 6 5 4 0 3 2 1 6 5 0 4 3 2 1 6 0 5 4 3 2 1 0 6 5 4 3 2 0 x = 2 3 4 5 6 1 y = 1 6 5 4 3 2 2 1 6 5 4 3 3 2 1 6 5 4 4 3 2 1 6 5 5 4 3 2 1 6 6 5 4 3 2 1

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