Cody

# Problem 44401. Vertical matrix sort

Solution 1805516

Submitted on 4 May 2019 by lishai avraham
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 = []; y_correct = []; assert(isequal(upAndDown(x),y_correct))

A = [] y = []

2   Pass
x = 0; y_correct = [0;0]; assert(isequal(upAndDown(x),y_correct))

A = 0 y = 0 0

3   Pass
x = zeros(10); x(7,4) = 1; y_correct = zeros(20,10); y_correct(10:11,4) = [1;1]; assert(isequal(upAndDown(x),y_correct))

A = 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 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 1 0 0 0 0 0 0 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 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 1 0 0 0 0 0 0 0 0 0 1 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 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

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

A = 1 4 3 2 y = 1 4 3 2 1 4 3 2

5   Pass
x = [8 9 3 9; 9 6 5 2; 2 1 9 9]; y_correct = [2 1 3 2; 8 6 5 9; 9 9 9 9; 9 9 9 9; 8 6 5 9; 2 1 3 2]; assert(isequal(upAndDown(x),y_correct))

A = 2 1 3 2 8 6 5 9 9 9 9 9 y = 2 1 3 2 8 6 5 9 9 9 9 9 9 9 9 9 8 6 5 9 2 1 3 2

6   Pass
x = 1:10; y_correct = [x; x]; assert(isequal(upAndDown(x),y_correct))

A = 1 2 3 4 5 6 7 8 9 10 y = 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10

7   Pass
x = (1:10)'; y_correct = [x; flipud(x)]; assert(isequal(upAndDown(x),y_correct))

A = 1 2 3 4 5 6 7 8 9 10 y = 1 2 3 4 5 6 7 8 9 10 10 9 8 7 6 5 4 3 2 1

8   Pass
x = reshape(1:9,[3,3]); c = [1:3,3:-1:1]'; y_correct = [c,c+3,c+6]; assert(isequal(upAndDown(x),y_correct))

A = 1 4 7 2 5 8 3 6 9 y = 1 4 7 2 5 8 3 6 9 3 6 9 2 5 8 1 4 7