Compilare: user.cpp: In function ‘int main()’: user.cpp:16:33: warning: unused variable ‘cop1’ [-Wunused-variable] {int n,nr,nrc,i,j,c1,c2,cc,maxx,cop1,cop2,mm; ^ user.cpp:16:38: warning: unused variable ‘cop2’ [-Wunused-variable] {int n,nr,nrc,i,j,c1,c2,cc,maxx,cop1,cop2,mm; ^ user.cpp:68:23: warning: ‘c2’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<cc<<"\n"<<c1<<" "<<c2<<" "<<maxx; ^ user.cpp:68:14: warning: ‘c1’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<cc<<"\n"<<c1<<" "<<c2<<" "<<maxx; ^