foo.c: In function 'main':
foo.c:5:13: error: redeclaration of 'y' with no linkage
    5 |         int y=[32];
      |             ^
foo.c:4:11: note: previous declaration of 'y' with type 'int'
    4 |     int x,y,a,b=0,q=2;
      |           ^
foo.c:5:15: error: expected expression before '[' token
    5 |         int y=[32];
      |               ^
foo.c:9:22: error: 'n' undeclared (first use in this function)
    9 |                 a=(x%n);
      |                      ^
foo.c:9:22: note: each undeclared identifier is reported only once for each function it appears in
foo.c:10:18: error: subscripted value is neither array nor pointer nor vector
   10 |                 y[b]=c;
      |                  ^
foo.c:10:22: error: 'c' undeclared (first use in this function)
   10 |                 y[b]=c;
      |                      ^
foo.c:14:23: error: 'i' undeclared (first use in this function)
   14 |         for (b--;b>=0;i--)
      |                       ^
foo.c:5:13: warning: variable 'y' set but not used [-Wunused-but-set-variable]
    5 |         int y=[32];
      |             ^
foo.c:4:13: warning: variable 'a' set but not used [-Wunused-but-set-variable]
    4 |     int x,y,a,b=0,q=2;
      |             ^

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