Compilare: user.cpp: In function ‘int swapin(int, int)’: user.cpp:32:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int insertheap(int)’: user.cpp:47:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int removeheap(int)’: user.cpp:67:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘int minheap()’: user.cpp:74:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^