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Solution 197103

Submitted on 26 Jan 2013 by Khaled Hamed

Correct

27Size
Leading solution size is 11.
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

Test Suite

Test
Code Input and Output
1
Pass
 
%% positive integers
x = 5;
assert(isequal(unique(rand_plusminus1(x)),[-1;1]))
[Warning: Colon operands should not be logical.]
[> In rand_plusminus1 at 3
  In verifyCode>evaluateCode at 227
  In verifyCode at 40
  In fevalJSON at 14]
2
Pass
 
%% one element
x = 1;
assert(isequal(abs(rand_plusminus1(x)),1))
[Warning: Colon operands should not be logical.]
[> In rand_plusminus1 at 3
  In verifyCode>evaluateCode at 227
  In verifyCode at 40
  In fevalJSON at 14]
3
Pass
 
%% zero => empty matrix
x = 0;
assert(isequal(rand_plusminus1(x),[]))
[Warning: Colon operands should not be logical.]
[> In rand_plusminus1 at 3
  In verifyCode>evaluateCode at 227
  In verifyCode at 40
  In fevalJSON at 14]
4
Pass
 
%% positive integers
x = 999;
assert(isequal(unique(rand_plusminus1(x)),[-1;1]))
[Warning: Colon operands should not be logical.]
[> In rand_plusminus1 at 3
  In verifyCode>evaluateCode at 227
  In verifyCode at 40
  In fevalJSON at 14]