/in/foo.cc: In function 'int init()':
/in/foo.cc:49:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^
/in/foo.cc: In function 'int DP()':
/in/foo.cc:67:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^