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Solution 233703

Submitted on 21 Apr 2013 by andrea84

Correct

28Size
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
 
%%
n = 1;
m_correct = [1 1];
assert(isequal(mirror_matrix(n),m_correct))
ans =
     1     1
2
Pass
 
%%
n = 3;
m_correct = [1 2 3 3 2 1; 1 2 3 3 2 1; 1 2 3 3 2 1];
assert(isequal(mirror_matrix(n),m_correct))
ans =
     1     2     3     3     2     1
     1     2     3     3     2     1
     1     2     3     3     2     1
3
Pass
 
%%
n = 33;
m_correct = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,33,32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1;];
assert(isequal(mirror_matrix(n),m_correct))
ans =
  Columns 1 through 16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
     1     2     3     4     5     6     7     8     9    10    11    12    13    14    15    16
  Columns 17 through 32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
    17    18    19    20    21    22    23    24    25    26    27    28    29    30    31    32
  Columns 33 through 48
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
    33    33    32    31    30    29    28    27    26    25    24    23    22    21    20    19
  Columns 49 through 64
    18    17    16    15    14    13    12    11    10     9     8     7     6     5     4     3
    18    17    16    15    14    13    12    11    10     9     8     7     6     5     4     3
    18    17    16    15    14    13    12    11    10     9     8     7     6     5     4     3
    ...