/in/foo.cc: In function 'int print(int)':
/in/foo.cc:31:1: warning: no return statement in function returning non-void [-Wreturn-type]
 }int a[1000001];
 ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:37:7: warning: unused variable 'pd' [-Wunused-variable]
   int pd=read();
       ^~