/in/foo.cc: In function 'void println(int, int)':
/in/foo.cc:12:6: warning: unused variable 'temp' [-Wunused-variable]
  int temp = d;
      ^~~~
/in/foo.cc: In function 'int main()':
/in/foo.cc:34:7: warning: unused variable 'line' [-Wunused-variable]
   int line = d;
       ^~~~
/in/foo.cc:36:7: warning: unused variable 'x' [-Wunused-variable]
   int x = d-2;
       ^
/in/foo.cc:31:6: warning: unused variable 'count' [-Wunused-variable]
  int count = 0;
      ^~~~~