Compilare: user.cpp: In function ‘int main()’: user.cpp:9:8: warning: unused variable ‘m’ [-Wunused-variable] {int n,m,y,x,ma,s,i,j; ^ user.cpp:9:10: warning: unused variable ‘y’ [-Wunused-variable] {int n,m,y,x,ma,s,i,j; ^ user.cpp:9:14: warning: unused variable ‘ma’ [-Wunused-variable] {int n,m,y,x,ma,s,i,j; ^ user.cpp:9:17: warning: unused variable ‘s’ [-Wunused-variable] {int n,m,y,x,ma,s,i,j; ^