/in/foo.cc: In function 'int main()':
/in/foo.cc:38:17: warning: 'x' is used uninitialized [-Wuninitialized]
   38 |         n=Insert(a,n,x);
      |           ~~~~~~^~~~~~~
/in/foo.cc:36:20: note: 'x' was declared here
   36 |         int a[N],n,x;
      |                    ^