Compilare: user.cpp: In function ‘int main()’: user.cpp:80:11: warning: unused variable ‘ok’ [-Wunused-variable] int i,ok,x,y,a,aa,b,bb,V=0,lca,dif,sum; ^ user.cpp:80:18: warning: unused variable ‘a’ [-Wunused-variable] int i,ok,x,y,a,aa,b,bb,V=0,lca,dif,sum; ^ user.cpp:80:20: warning: unused variable ‘aa’ [-Wunused-variable] int i,ok,x,y,a,aa,b,bb,V=0,lca,dif,sum; ^ user.cpp:80:23: warning: unused variable ‘b’ [-Wunused-variable] int i,ok,x,y,a,aa,b,bb,V=0,lca,dif,sum; ^ user.cpp:80:25: warning: unused variable ‘bb’ [-Wunused-variable] int i,ok,x,y,a,aa,b,bb,V=0,lca,dif,sum; ^ user.cpp:80:28: warning: unused variable ‘V’ [-Wunused-variable] int i,ok,x,y,a,aa,b,bb,V=0,lca,dif,sum; ^ user.cpp:80:32: warning: unused variable ‘lca’ [-Wunused-variable] int i,ok,x,y,a,aa,b,bb,V=0,lca,dif,sum; ^ user.cpp:80:36: warning: unused variable ‘dif’ [-Wunused-variable] int i,ok,x,y,a,aa,b,bb,V=0,lca,dif,sum; ^ user.cpp:80:40: warning: unused variable ‘sum’ [-Wunused-variable] int i,ok,x,y,a,aa,b,bb,V=0,lca,dif,sum; ^