foo.c: In function 'Insert':
foo.c:18:8: warning: unused variable 'j' [-Wunused-variable]
   18 |  int i,j;
      |        ^
foo.c: In function 'main':
foo.c:5:12: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
    5 |  int n,i,x;scanf("%d",&n);
      |            ^~~~~~~~~~~~~~
foo.c:9:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
    9 |   scanf("%d",&a[i]);
      |   ^~~~~~~~~~~~~~~~~
foo.c:12:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   12 |  scanf("%d",&x);
      |  ^~~~~~~~~~~~~~

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