Compilare: user.cpp: In function ‘int main()’: user.cpp:22:10: warning: variable ‘ok’ set but not used [-Wunused-but-set-variable] bool ok; ^~ user.cpp: In function ‘bool rp(int)’: user.cpp:16:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ user.cpp: In function ‘int main()’: user.cpp:34:28: warning: ‘j’ may be used uninitialized in this function [-Wmaybe-uninitialized] v[cn].c=j; ~~~~~~~^~