/in/foo.c: In function 'Search':
/in/foo.c:14:3: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   if (a[i] = x)
   ^~
/in/foo.c: In function 'main':
/in/foo.c:36:14: warning: format '%d' expects a matching 'int *' argument [-Wformat=]
  scanf("%d%d%d", &n1, &n2);
              ^