/in/foo.cc: In function 'int main()':
/in/foo.cc:13:19: warning: unused variable 'd' [-Wunused-variable]
   13 |         int a,b,c,d,e,f,g;
      |                   ^
/in/foo.cc:13:21: warning: unused variable 'e' [-Wunused-variable]
   13 |         int a,b,c,d,e,f,g;
      |                     ^
/in/foo.cc:13:23: warning: unused variable 'f' [-Wunused-variable]
   13 |         int a,b,c,d,e,f,g;
      |                       ^
/in/foo.cc:13:25: warning: unused variable 'g' [-Wunused-variable]
   13 |         int a,b,c,d,e,f,g;
      |                         ^