foo.c: In function 'judge':
foo.c:9:2: error: expected ',' or ';' before 'for'
    9 |  for(i=2;i<n/2+1;i++)
      |  ^~~
foo.c:9:10: error: 'i' undeclared (first use in this function)
    9 |  for(i=2;i<n/2+1;i++)
      |          ^
foo.c:9:10: note: each undeclared identifier is reported only once for each function it appears in
foo.c:9:21: error: expected ';' before ')' token
    9 |  for(i=2;i<n/2+1;i++)
      |                     ^
      |                     ;
foo.c:9:21: error: expected statement before ')' token
foo.c: In function 'main':
foo.c:34:2: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'scanf'
   34 |  scanf("%d%d",&n1,&n2);
      |  ^~~~~
foo.c:36:7: error: 'b' undeclared (first use in this function)
   36 |  into(b,n2);
      |       ^
foo.c:38:2: warning: implicit declaration of function 'prinmecount'; did you mean 'primecount'? [-Wimplicit-function-declaration]
   38 |  prinmecount(b,n2);
      |  ^~~~~~~~~~~
      |  primecount

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