/in/foo.c: In function 'main':
/in/foo.c:15:2: warning: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
  scanf( "%d" ,&n);
  ^~~~~
/in/foo.c:15:2: warning: incompatible implicit declaration of built-in function 'scanf'
/in/foo.c:15:2: note: include '<stdio.h>' or provide a declaration of 'scanf'
/in/foo.c:22:2: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
  printf("%d", min);
  ^~~~~~
/in/foo.c:22:2: warning: incompatible implicit declaration of built-in function 'printf'
/in/foo.c:22:2: note: include '<stdio.h>' or provide a declaration of 'printf'
/in/foo.c: In function 'FindMin':
/in/foo.c:5:7: warning: 'i' is used uninitialized in this function [-Wuninitialized]
  for(i=i;i<n;i++)
      ~^~