table(example). |_. gard4.in |_. gard4.out |
| 5

  3 0 10 10 10
  10 1 10 0 10
  0 -1 4 -1 0
  10 0 10 0 0
  10 10 10 10 0

  3  0 10 10 10
  10  1 10  0 10
  0 -1  4 -1  0
  10  0 10  0  0
  10 10 10 10  0

| 9
|
h3. Explicatie
Sirul de patrate ales pentru plasarea stalpilor este urmatorul:

$3 0 10 10 10$
$10 **1** 10 **0** 10$
$**0** -1 **4** -1 **0**$
$10 **0** 10 **0** **0**$
$10 10 10 10 0$

 3  0 10 10 10
10 **1** 10 **0** 10
**0** -1 **4** -1 **0**
10 **0** 10 **0** **0**
10 10 10 10 0

Dupa cum observati, patratul de cost 4 dintre cei doi meri a fost ales de 2 ori.