Main.c:3:1: error: unknown type name 'bool'
    3 | bool isPrime(int n){
      | ^~~~
Main.c:2:1: note: 'bool' is defined in header '<stdbool.h>'; did you forget to '#include <stdbool.h>'?
    1 | #include"stdio.h"
  +++ |+#include <stdbool.h>
    2 | int num[5000],z=0;
Main.c: In function 'isPrime':
Main.c:4:26: error: 'false' undeclared (first use in this function)
    4 |         if(n%2==0)return false;
      |                          ^~~~~
Main.c:4:26: note: 'false' is defined in header '<stdbool.h>'; did you forget to '#include <stdbool.h>'?
Main.c:4:26: note: each undeclared identifier is reported only once for each function it appears in
Main.c:7:1: warning: control reaches end of non-void function [-Wreturn-type]
    7 | }
      | ^