Compilare: user.cpp: In function ‘int main()’: user.cpp:7:17: warning: unused variable ‘j’ [-Wunused-variable] int s=0,n,i,j,k,l,mx=0,curent,rin,in=1,sf=0,rsf=0; ^ user.cpp:7:19: warning: unused variable ‘k’ [-Wunused-variable] int s=0,n,i,j,k,l,mx=0,curent,rin,in=1,sf=0,rsf=0; ^ user.cpp:7:21: warning: unused variable ‘l’ [-Wunused-variable] int s=0,n,i,j,k,l,mx=0,curent,rin,in=1,sf=0,rsf=0; ^ user.cpp:7:39: warning: variable ‘in’ set but not used [-Wunused-but-set-variable] int s=0,n,i,j,k,l,mx=0,curent,rin,in=1,sf=0,rsf=0; ^ user.cpp:7:44: warning: variable ‘sf’ set but not used [-Wunused-but-set-variable] int s=0,n,i,j,k,l,mx=0,curent,rin,in=1,sf=0,rsf=0; ^ user.cpp:34:9: warning: ‘rin’ may be used uninitialized in this function [-Wmaybe-uninitialized] f2<<rin<<" "<<rsf; ^