Language: C++

#include<vector>
#include<string>
#include<algorithm>
#define int long long
using namespace std;

signed main() {
	int N;
	cin >> N;
	if(N < 105) {
		cout << 0 << endl;
	}
	else if(N < 135) {
		cout << 1 << endl;
	}
	else if(N < 165) {
		cout << 2 << endl;
	}
	else if(N < 189) {
		cout << 3 << endl;
	}
	else if(N < 195) {
		cout << 4 << endl;
	}
	else {
		cout << 5 << endl;
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:9: error: 'cin' was not declared in this scope
    9 |         cin >> N;
      |         ^~~
a.cc:4:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    3 | #include<algorithm>
  +++ |+#include <iostream>
    4 | #define int long long
a.cc:11:17: error: 'cout' was not declared in this scope
   11 |                 cout << 0 << endl;
      |                 ^~~~
a.cc:11:17: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:11:30: error: 'endl' was not declared in this scope
   11 |                 cout << 0 << endl;
      |                              ^~~~
a.cc:4:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    3 | #include<algorithm>
  +++ |+#include <ostream>
    4 | #define int long long
a.cc:14:17: error: 'cout' was not declared in this scope
   14 |                 cout << 1 << endl;
      |                 ^~~~
a.cc:14:17: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:14:30: error: 'endl' was not declared in this scope
   14 |                 cout << 1 << endl;
      |                              ^~~~
a.cc:14:30: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
a.cc:17:17: error: 'cout' was not declared in this scope
   17 |                 cout << 2 << endl;
      |                 ^~~~
a.cc:17:17: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:17:30: error: 'endl' was not declared in this scope
   17 |                 cout << 2 << endl;
      |                              ^~~~
a.cc:17:30: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
a.cc:20:17: error: 'cout' was not declared in this scope
   20 |                 cout << 3 << endl;
      |                 ^~~~
a.cc:20:17: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:20:30: error: 'endl' was not declared in this scope
   20 |                 cout << 3 << endl;
      |                              ^~~~
a.cc:20:30: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
a.cc:23:17: error: 'cout' was not declared in this scope
   23 |                 cout << 4 << endl;
      |                 ^~~~
a.cc:23:17: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:23:30: error: 'endl' was not declared in this scope
   23 |                 cout << 4 << endl;
      |                              ^~~~
a.cc:23:30: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
a.cc:26:17: error: 'cout' was not declared in this scope
   26 |                 cout << 5 << endl;
      |                 ^~~~
a.cc:26:17: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:26:30: error: 'endl' was not declared in this scope
   26 |                 cout << 5 << endl;
      |                              ^~~~
a.cc:26:30: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'