Compilare: user.cpp: In function ‘int main()’: user.cpp:16:7: warning: unused variable ‘cn’ [-Wunused-variable] int i,cn,cm,j,e,p,pmax=-1,colmax,linmax,ll,cc,val; ^ user.cpp:16:10: warning: unused variable ‘cm’ [-Wunused-variable] int i,cn,cm,j,e,p,pmax=-1,colmax,linmax,ll,cc,val; ^ user.cpp:51:25: warning: ‘linmax’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<pmax<<"\n"<<linmax+1<<" "<<colmax+1; ^ user.cpp:51:40: warning: ‘colmax’ may be used uninitialized in this function [-Wmaybe-uninitialized] out<<pmax<<"\n"<<linmax+1<<" "<<colmax+1; ^