foo.c: In function 'main':
foo.c:30:44: warning: unused variable 'k' [-Wunused-variable]
   30 |         int n1, n2, a[10000], b[10000], i, k;
      |                                            ^
foo.c: In function 'PrimeCount':
foo.c:21:27: warning: 'Prime' may be used uninitialized [-Wmaybe-uninitialized]
   21 |                         if(Prime)
      |                           ^
foo.c:6:22: note: 'Prime' was declared here
    6 |         int j, s, k, Prime, sum=0;
      |                      ^~~~~

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