Compilare: user.cpp: In function ‘void ok(int, int, char&, int&)’: user.cpp:19:9: warning: unused variable ‘mrg’ [-Wunused-variable] int mrg=0,i,j,marime,li,ci,lj,cj; ^ user.cpp: In function ‘int main()’: user.cpp:106:21: warning: variable ‘lmax’ set but not used [-Wunused-but-set-variable] int ma,maxi,lmax,cmax; ^ user.cpp:106:26: warning: variable ‘cmax’ set but not used [-Wunused-but-set-variable] int ma,maxi,lmax,cmax; ^ user.cpp:79:13: warning: unused variable ‘p’ [-Wunused-variable] int i,j,p,nrg,nmax=0,ct=0,contor=0; ^ user.cpp:105:18: warning: ‘culm’ may be used uninitialized in this function [-Wmaybe-uninitialized] char cul,culm; ^ user.cpp:121:22: warning: ‘j’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<i<<' '<<j<<'\n'<<culm; ^