foo.c: In function 'main':
foo.c:5:13: error: expected identifier or '(' before numeric constant
5 | int 1|x,y,z,max;
| ^
foo.c:7:25: error: 'x' undeclared (first use in this function)
7 | scanf("%d%d%d",&x,&y,&z);
| ^
foo.c:7:25: note: each undeclared identifier is reported only once for each function it appears in
foo.c:7:28: error: 'y' undeclared (first use in this function)
7 | scanf("%d%d%d",&x,&y,&z);
| ^
foo.c:7:31: error: 'z' undeclared (first use in this function)
7 | scanf("%d%d%d",&x,&y,&z);
| ^
foo.c:9:17: error: 'max' undeclared (first use in this function)
9 | max=x;
| ^~~
[Hydro](https://hydro.ac)提供评测服务