Cody

Problem 11. Back and Forth Rows

Solution 2002949

Submitted on 5 Nov 2019 by Nicholas Begg
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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)));

a = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 a = 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 AA = 1 1 1 1 i = 2 b = 5 6 7 8 AA = 8 7 6 5 a = 1 2 3 4 8 7 6 5 9 10 11 12 13 14 15 16 i = 4 b = 13 14 15 16 AA = 16 15 14 13 a = 1 2 3 4 8 7 6 5 9 10 11 12 16 15 14 13 i = 6 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)));

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