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Solution 369743

Submitted on 13 Dec 2013 by Michael C.

Correct

15Size
This is the leading solution.
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Test Suite

Test
Code Input and Output
1
Pass
 
%%
x = 1;
y_correct = 1;
y = only_once(x);
assert(isequal(y,y_correct))
ans =
     1
2
Pass
 
%%
x = [1 0 0 1];
y_correct = [1 0 0 1];
y = only_once(x);
assert(isequal(y,y_correct))
ans =
     1     0     0     1
3
Pass
 
%%
x = [0 0 1 1 0;0 1 1 0 0;0 0 0 0 1];
y_correct = [0 0 1 1 0;0 1 0 0 0;0 0 0 0 1];
y = only_once(x);
assert(isequal(y,y_correct))
ans =
     0     0     1     1     0
     0     1     0     0     0
     0     0     0     0     1
4
Pass
 
%%
x = randi(2,10,10)-1;
y = only_once(x);
assert(all(sum(y,1)==any(y,1)))
ans =
     0     0     0     1     0     1     1     1     0     1
     0     0     1     0     0     0     0     0     1     0
     1     1     0     0     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     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     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     0
5
Pass
 
%%
x = randi(2,1,100)-1;
y = only_once(x);
assert(all(sum(y,1)==any(y,1)))
ans =
  Columns 1 through 16
     1     0     1     0     0     1     1     1     1     0     1     0     0     0     1     0
  Columns 17 through 32
     1     0     0     1     1     0     0     1     1     1     1     1     0     1     0     0
  Columns 33 through 48
     1     1     1     1     1     1     1     1     1     1     0     1     1     1     0     1
  Columns 49 through 64
     0     1     0     1     1     0     1     1     1     1     0     1     0     0     1     1
  Columns 65 through 80
     1     1     1     0     0     0     1     1     0     1     1     1     1     0     0     0
  Columns 81 through 96
     1     0     1     1     1     0     1     0     0     0     1     1     0     1     1     1
  Columns 97 through 100
     1     1     1     1
6
Pass
 
%%
x = randi(2,10,1)-1;
y = only_once(x);
assert(all(sum(y,1)==any(y,1)))
ans =
     1
     0
     0
     0
     0
     0
     0
     0
     0
     0