Cody

Problem 11. Back and Forth Rows

Solution 1101531

Submitted on 10 Jan 2017 by SIVAPRAKASH DANABALASINGAM
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Test Suite

Test Status Code Input and Output
1   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)));

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

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