Compilare: user.cpp: In function ‘int main()’: user.cpp:20:27: warning: unused variable ‘db’ [-Wunused-variable] int n,m,i,j,h=0,hossz,db=0; ^ user.cpp:25:24: warning: unused variable ‘s’ [-Wunused-variable] short a[n+2][m+2], s[n+2][m+2]; ^ user.cpp:26:21: warning: variable ‘van’ set but not used [-Wunused-but-set-variable] bool kesz=false,van=false; ^ user.cpp:239:15: warning: ‘hossz’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<-hossz-2; ^