/in/foo.cc: In function 'int main()':
/in/foo.cc:9:6: warning: unused variable 'a' [-Wunused-variable]
  int a=1,b=1,m,fib[61];
      ^
/in/foo.cc:9:10: warning: unused variable 'b' [-Wunused-variable]
  int a=1,b=1,m,fib[61];
          ^
/in/foo.cc:9:14: warning: unused variable 'm' [-Wunused-variable]
  int a=1,b=1,m,fib[61];
              ^