foo.c: In function 'main':
foo.c:6:12: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'scanf'
    6 |            scanf("(%d,%d)",&x,&y);
      |            ^~~~~
foo.c:9:20: error: 'y' undeclared (first use in this function)
    9 |                 if(y>0)
      |                    ^
foo.c:9:20: note: each undeclared identifier is reported only once for each function it appears in

[Hydro](https://hydro.ac)提供评测服务