/in/foo.c: In function 'main':
/in/foo.c:9:10: error: expected expression before '%' token
   printf(%f\n",a);
          ^
/in/foo.c:9:12: error: stray '\' in program
   printf(%f\n",a);
            ^
/in/foo.c:9:14: warning: missing terminating " character
   printf(%f\n",a);
              ^
/in/foo.c:9:14: error: missing terminating " character
   printf(%f\n",a);
              ^~~~~
/in/foo.c:10:5: error: expected ';' before '}' token
     }
     ^
/in/foo.c:13:24: warning: missing terminating " character
         printf("%f\n",b");
                        ^
/in/foo.c:13:24: error: missing terminating " character
         printf("%f\n",b");
                        ^~~
/in/foo.c:14:2: error: expected ')' before '}' token
  }
  ^
/in/foo.c:14:2: error: expected ';' before '}' token