foo.c: In function 'main':
foo.c:21:30: warning: left-hand operand of comma expression has no effect [-Wunused-value]
   21 |         for (int i = 0; i < n, i++;) {
      |                              ^
foo.c:22:18: warning: unknown conversion type character ' ' in format [-Wformat=]
   22 |         scanf(" % d", &a[i]);
      |                  ^
foo.c:22:15: warning: too many arguments for format [-Wformat-extra-args]
   22 |         scanf(" % d", &a[i]);
      |               ^~~~~~
foo.c: In function 'FindiMax':
foo.c:12:1: warning: control reaches end of non-void function [-Wreturn-type]
   12 | }
      | ^
In function 'FindiMax',
    inlined from 'main' at foo.c:24:24:
foo.c:3:9: warning: 'a' is used uninitialized [-Wuninitialized]
    3 |     int max = arr[0];
      |         ^~~
foo.c: In function 'main':
foo.c:19:13: note: 'a' declared here
   19 |         int a[10000];
      |             ^

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