Compilare: user.cpp: In function ‘int main()’: user.cpp:73:21: warning: unused variable ‘j’ [-Wunused-variable] int x,y,z,l=0,i,j,st,dr,j1,j2; ^ user.cpp:73:23: warning: unused variable ‘st’ [-Wunused-variable] int x,y,z,l=0,i,j,st,dr,j1,j2; ^ user.cpp:73:26: warning: unused variable ‘dr’ [-Wunused-variable] int x,y,z,l=0,i,j,st,dr,j1,j2; ^ user.cpp:73:29: warning: unused variable ‘j1’ [-Wunused-variable] int x,y,z,l=0,i,j,st,dr,j1,j2; ^ user.cpp:73:32: warning: unused variable ‘j2’ [-Wunused-variable] int x,y,z,l=0,i,j,st,dr,j1,j2; ^