Problem 944. Create incremental spiral WITHOUT USING EVAL or FEVAL

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Solution 556558

Submitted on 12 Jan 2015 by Jan Orwat

Size: 43
Leading solution size is 0.

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Jan Orwat on 13 Jan 2015

testsuite doesn't work since mid 2014.
Anyway, the smallest non-spiral solution there.

Test Suite

Test	Status	Code Input and Output
1	Pass	%% x = 3; y_correct = [ 1 2 3 8 9 4 7 6 5 ]; assert(isequal(pyramid(x),y_correct))
2	Pass	%% x = 6; y_correct = [ 1 2 3 4 5 6 20 21 22 23 24 7 19 32 33 34 25 8 18 31 36 35 26 9 17 30 29 28 27 10 16 15 14 13 12 11 ]; assert(isequal(pyramid(x),y_correct))
3	Pass	%% x = 1; y_correct = 1; assert(isequal(pyramid(x),y_correct))

Test

Status

Code Input and Output

Pass

%% x = 3; y_correct = [ 1 2 3 8 9 4 7 6 5 ]; assert(isequal(pyramid(x),y_correct))

Pass

%% x = 6; y_correct = [ 1 2 3 4 5 6 20 21 22 23 24 7 19 32 33 34 25 8 18 31 36 35 26 9 17 30 29 28 27 10 16 15 14 13 12 11 ]; assert(isequal(pyramid(x),y_correct))

Pass

%% x = 1; y_correct = 1; assert(isequal(pyramid(x),y_correct))