Cody

# Problem 11. Back and Forth Rows

Solution 1907486

Submitted on 21 Aug 2019 by Eugene Avrutin
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
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)));

num = 0 var = 1 var = 0 num = 1 b = 1 num = 2 b = 1 2 num = 3 b = 1 2 3 num = 4 b = 1 2 3 4 var = 1 num = 5 b = 1 2 3 4 0 0 0 5 num = 6 b = 1 2 3 4 0 0 6 5 num = 7 b = 1 2 3 4 0 7 6 5 num = 8 b = 1 2 3 4 8 7 6 5 var = 0 num = 9 b = 1 2 3 4 8 7 6 5 9 0 0 0 num = 10 b = 1 2 3 4 8 7 6 5 9 10 0 0 num = 11 b = 1 2 3 4 8 7 6 5 9 10 11 0 num = 12 b = 1 2 3 4 8 7 6 5 9 10 11 12 var = 1 num = 13 b = 1 2 3 4 8 7 6 5 9 10 11 12 0 0 0 13 num = 14 b = 1 2 3 4 8 7 6 5 9 10 11 12 0 0 14 13 num = 15 b = 1 2 3 4 8 7 6 5 9 10 11 12 0 15 14 13 num = 16 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)));

num = 0 var = 1 var = 0 num = 1 b = 1 num = 2 b = 1 2 num = 3 b = 1 2 3 num = 4 b = 1 2 3 4 num = 5 b = 1 2 3 4 5 var = 1 num = 6 b = 1 2 3 4 5 0 0 0 0 6 num = 7 b = 1 2 3 4 5 0 0 0 7 6 num = 8 b = 1 2 3 4 5 0 0 8 7 6 num = 9 b = 1 2 3 4 5 0 9 8 7 6 num = 10 b = 1 2 3 4 5 10 9 8 7 6 var = 0 num = 11 b = 1 2 3 4 5 10 9 8 7 6 11 0 0 0 0 num = 12 b = 1 2 3 4 5 10 9 8 7 6 11 12 0 0 0 num = 13 b = 1 2 3 4 5 10 9 8 7 6 11 12 13 0 0 num = 14 b = 1 2 3 4 5 10 9 8 7 6 11 12 13 14 0 num = 15 b = 1 2 3 4 5 10 9 8 7 6 11 12 13 14 15 var = 1 num = 16 b = 1 2 3 4 5 10 9 8 7 6 11 12 13 14 15 0 0 0 0 16 num = 17 b = 1 2 3 4 5 10 9 8 7 6 11 12 13 14 15 0 0 0 17 16 num = 18 b = 1 2 3 4 5 10 9 8 7 6 11 12 13 14 15 0 0 18 17 16 num = 19 b = 1 2 3 4 5 10 9 8 7 6 11 12 13 14 15 0 19 18 17 16 num = 20 b = 1 2 3 4 5 10 9 8 7 6 11 12 13 14 15 20 19 18 17 16 var = 0 num = 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 num = 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 num = 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 num = 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 num = 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

### Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!