foo.c: In function 'main':
foo.c:13:9: warning: implicit declaration of function 'primecount' [-Wimplicit-function-declaration]
   13 |  num1 = primecount(a,n1);
      |         ^~~~~~~~~~
foo.c: In function 'primecount':
foo.c:23:6: warning: implicit declaration of function 'prime' [-Wimplicit-function-declaration]
   23 |   if(prime(a[i])==1)
      |      ^~~~~
foo.c: In function 'main':
foo.c:5:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
    5 |  scanf("%d %d",&n1,&n2);
      |  ^~~~~~~~~~~~~~~~~~~~~~
foo.c:9:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
    9 |  scanf("%d",&a[i]);
      |  ^~~~~~~~~~~~~~~~~
foo.c:11:2: warning: ignoring return value of 'scanf', declared with attribute warn_unused_result [-Wunused-result]
   11 |  scanf("%d",&b[i]);
      |  ^~~~~~~~~~~~~~~~~
foo.c: In function 'prime':
foo.c:46:1: warning: control reaches end of non-void function [-Wreturn-type]
   46 | }
      | ^

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