Cody

# Problem 11. Back and Forth Rows

Solution 1980397

Submitted on 17 Oct 2019 by Harsh Patel
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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)));

mat = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 count = 1 mat = 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 count = 2 mat = 1 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 count = 3 mat = 1 2 3 0 0 0 0 0 0 0 0 0 0 0 0 0 count = 4 mat = 1 2 3 4 0 0 0 0 0 0 0 0 0 0 0 0 count = 5 mat = 1 2 3 4 0 0 0 5 0 0 0 0 0 0 0 0 count = 6 mat = 1 2 3 4 0 0 6 5 0 0 0 0 0 0 0 0 count = 7 mat = 1 2 3 4 0 7 6 5 0 0 0 0 0 0 0 0 count = 8 mat = 1 2 3 4 8 7 6 5 0 0 0 0 0 0 0 0 count = 9 mat = 1 2 3 4 8 7 6 5 9 0 0 0 0 0 0 0 count = 10 mat = 1 2 3 4 8 7 6 5 9 10 0 0 0 0 0 0 count = 11 mat = 1 2 3 4 8 7 6 5 9 10 11 0 0 0 0 0 count = 12 mat = 1 2 3 4 8 7 6 5 9 10 11 12 0 0 0 0 count = 13 mat = 1 2 3 4 8 7 6 5 9 10 11 12 0 0 0 13 count = 14 mat = 1 2 3 4 8 7 6 5 9 10 11 12 0 0 14 13 count = 15 mat = 1 2 3 4 8 7 6 5 9 10 11 12 0 15 14 13 count = 16 mat = 1 2 3 4 8 7 6 5 9 10 11 12 16 15 14 13 count = 17 b = 1 2 3 4 8 7 6 5 9 10 11 12 16 15 14 13

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)));

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