foo.c: In function 'main':
foo.c:43:7: warning: unused variable 'ans' [-Wunused-variable]
   43 |   int ans=0;
      |       ^~~
foo.c:7:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
    7 |  scanf("%d",&N);
      |  ^~~~~~~~~~~~~~
foo.c:10:3: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   10 |   scanf("%d",&m);
      |   ^~~~~~~~~~~~~~
foo.c:16:25: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   16 |   for(int i=1;i<=m;i++) scanf("%lld",&num1[i]);
      |                         ^~~~~~~~~~~~~~~~~~~~~~
foo.c:17:25: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   17 |   for(int i=1;i<=m;i++) scanf("%lld",&num2[i]);
      |                         ^~~~~~~~~~~~~~~~~~~~~~

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