foo.c:3:1: warning: return type defaults to 'int' [-Wimplicit-int]
    3 | FindMin(int a[], int n)
      | ^~~~~~~
foo.c: In function 'main':
foo.c:14:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   14 |  scanf("%d",&n);
      |  ^~~~~~~~~~~~~~
foo.c:16:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   16 |   scanf("%d",a+i);
      |   ^~~~~~~~~~~~~~~

[Hydro](https://hydro.ac)提供评测服务