foo.c: In function 'main':
foo.c:11:12: error: expected ';' before 'printf'
   11 |         y=5
      |            ^
      |            ;
   12 |         printf("%d%d",x,y);
      |         ~~~~~~
foo.c:5:17: warning: variable 'y' set but not used [-Wunused-but-set-variable]
    5 |     int a,b,c,x,y;
      |                 ^
foo.c:5:15: warning: variable 'x' set but not used [-Wunused-but-set-variable]
    5 |     int a,b,c,x,y;
      |               ^

[Hydro](https://hydro.ac)提供评测服务