Compilare: main.cpp: In function 'int main()': main.cpp:11:11: warning: unused variable 'm' [-Wunused-variable] int n,m,g,db=0; ^ main.cpp:11:13: warning: unused variable 'g' [-Wunused-variable] int n,m,g,db=0; ^ main.cpp:13:17: warning: variable 'y' set but not used [-Wunused-but-set-variable] int x[n][n],y[n][n],z[10],q[10]; ^ main.cpp:13:25: warning: variable 'z' set but not used [-Wunused-but-set-variable] int x[n][n],y[n][n],z[10],q[10]; ^ main.cpp:13:31: warning: variable 'q' set but not used [-Wunused-but-set-variable] int x[n][n],y[n][n],z[10],q[10]; ^