/in/foo.c: In function 'func':
/in/foo.c:31:24: warning: unused variable 'cnt' [-Wunused-variable]
  int c[20000] = { 0 }, cnt = 0;
                        ^~~
/in/foo.c: In function 'output':
/in/foo.c:61:2: error: expected declaration or statement at end of input
  }
  ^