Cody

Problem 11. Back and Forth Rows

Solution 1825613

Submitted on 25 May 2019 by Joan Watson
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Test Suite

Test Status Code Input and Output
1   Pass
n = 4; a = [ 1 2 3 4; 8 7 6 5; 9 10 11 12; 16 15 14 13]; assert(isequal(a,back_and_forth(n)));

b = 1 2 3 4 0 0 0 0 0 0 0 0 0 0 0 0 now = 5 b = 1 2 3 4 8 7 6 5 0 0 0 0 0 0 0 0 now = 9 b = 1 2 3 4 8 7 6 5 9 10 11 12 0 0 0 0 now = 13 b = 1 2 3 4 8 7 6 5 9 10 11 12 16 15 14 13 now = 17
2   Pass
n = 5; a = [ 1 2 3 4 5; 10 9 8 7 6; 11 12 13 14 15; 20 19 18 17 16; 21 22 23 24 25]; assert(isequal(a,back_and_forth(n)));

b = 1 2 3 4 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 now = 6 b = 1 2 3 4 5 10 9 8 7 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 now = 11 b = 1 2 3 4 5 10 9 8 7 6 11 12 13 14 15 0 0 0 0 0 0 0 0 0 0 now = 16 b = 1 2 3 4 5 10 9 8 7 6 11 12 13 14 15 20 19 18 17 16 0 0 0 0 0 now = 21 b = 1 2 3 4 5 10 9 8 7 6 11 12 13 14 15 20 19 18 17 16 21 22 23 24 25 now = 26

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