Compilare: user.cpp: In function ‘long long int mat()’: user.cpp:17:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘long long int kiszamol()’: user.cpp:34:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int keres()’: user.cpp:84:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^