/in/foo.cc: In function 'int initial(int)':
/in/foo.cc:18:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^
/in/foo.cc: In function 'long long int kru(int, int, int)':
/in/foo.cc:84:1: warning: control reaches end of non-void function [-Wreturn-type]
 }
 ^