Compilare: user.cpp: In function ‘int value(int, int)’: user.cpp:28:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘bool check()’: user.cpp:47:9: warning: unused variable ‘ok1’ [-Wunused-variable] int ok1,ok2; ^ user.cpp:47:13: warning: unused variable ‘ok2’ [-Wunused-variable] int ok1,ok2; ^ user.cpp: In function ‘int main()’: user.cpp:65:19: warning: unused variable ‘from’ [-Wunused-variable] int sol=0,Max,from,next; ^ user.cpp:65:24: warning: unused variable ‘next’ [-Wunused-variable] int sol=0,Max,from,next; ^