/in/foo.cc: In function 'bool isPrime(ll)':
/in/foo.cc:8:71: error: deducing from brace-enclosed initializer list requires '#include <initializer_list>'
    1 | #include <cstdio>
  +++ |+#include <initializer_list>
    2 | using namespace std;
......
    8 |     for(ll p: {2LL,3LL,5LL,7LL,11LL,13LL,17LL,19LL,23LL,29LL,31LL,37LL}){
      |                                                                       ^
/in/foo.cc:14:31: error: deducing from brace-enclosed initializer list requires '#include <initializer_list>'
   14 |     for(ll a: {2LL,3LL,5LL,7LL}){
      |                               ^