Compilare: user.cpp: In function ‘int main()’: user.cpp:71:6: warning: unused variable ‘v’ [-Wunused-variable] {int v,i,j,k,ng=0,nr=0,nb=0,lg,lin,col,minpod,ii,jj,lin1,col1,v1; ^ user.cpp:71:29: warning: unused variable ‘lg’ [-Wunused-variable] {int v,i,j,k,ng=0,nr=0,nb=0,lg,lin,col,minpod,ii,jj,lin1,col1,v1; ^ user.cpp:71:32: warning: unused variable ‘lin’ [-Wunused-variable] {int v,i,j,k,ng=0,nr=0,nb=0,lg,lin,col,minpod,ii,jj,lin1,col1,v1; ^ user.cpp:71:36: warning: unused variable ‘col’ [-Wunused-variable] {int v,i,j,k,ng=0,nr=0,nb=0,lg,lin,col,minpod,ii,jj,lin1,col1,v1; ^ user.cpp:71:40: warning: variable ‘minpod’ set but not used [-Wunused-but-set-variable] {int v,i,j,k,ng=0,nr=0,nb=0,lg,lin,col,minpod,ii,jj,lin1,col1,v1; ^ user.cpp:71:47: warning: unused variable ‘ii’ [-Wunused-variable] {int v,i,j,k,ng=0,nr=0,nb=0,lg,lin,col,minpod,ii,jj,lin1,col1,v1; ^ user.cpp:71:50: warning: unused variable ‘jj’ [-Wunused-variable] {int v,i,j,k,ng=0,nr=0,nb=0,lg,lin,col,minpod,ii,jj,lin1,col1,v1; ^ user.cpp:71:53: warning: unused variable ‘lin1’ [-Wunused-variable] {int v,i,j,k,ng=0,nr=0,nb=0,lg,lin,col,minpod,ii,jj,lin1,col1,v1; ^ user.cpp:71:58: warning: unused variable ‘col1’ [-Wunused-variable] {int v,i,j,k,ng=0,nr=0,nb=0,lg,lin,col,minpod,ii,jj,lin1,col1,v1; ^ user.cpp:71:63: warning: unused variable ‘v1’ [-Wunused-variable] {int v,i,j,k,ng=0,nr=0,nb=0,lg,lin,col,minpod,ii,jj,lin1,col1,v1; ^ user.cpp: In function ‘int lee()’: user.cpp:69:1: warning: control reaches end of non-void function [-Wreturn-type] } ^