Compilare: user.cpp: In function ‘int main()’: user.cpp:9:19: warning: unused variable ‘ok’ [-Wunused-variable] int n,m,i,j,p,com,ok=1,s; ^ user.cpp:9:24: warning: unused variable ‘s’ [-Wunused-variable] int n,m,i,j,p,com,ok=1,s; ^ user.cpp:20:11: warning: ‘com’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<com-p; ^ user.cpp:20:11: warning: ‘p’ may be used uninitialized in this function [-Wmaybe-uninitialized]