/in/foo.cc: In function 'int FindMinPos(int*, int)':
/in/foo.cc:34:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }
 ^
/in/foo.cc:9:10: warning: 'index' may be used uninitialized in this function [-Wmaybe-uninitialized]
  int min,index;
          ^~~~~
/in/foo.cc:22:3: warning: 'min' may be used uninitialized in this function [-Wmaybe-uninitialized]
   if(a[i]<min && a[i]>0)
   ^~