/in/foo.cc: In function 'int main()':
/in/foo.cc:11:15: warning: unused variable 'd' [-Wunused-variable]
   11 |     int a,b,c,d,e,f,g;
      |               ^
/in/foo.cc:11:17: warning: unused variable 'e' [-Wunused-variable]
   11 |     int a,b,c,d,e,f,g;
      |                 ^
/in/foo.cc:11:19: warning: unused variable 'f' [-Wunused-variable]
   11 |     int a,b,c,d,e,f,g;
      |                   ^
/in/foo.cc:11:21: warning: unused variable 'g' [-Wunused-variable]
   11 |     int a,b,c,d,e,f,g;
      |                     ^