Language: C++

#incluse<iostream>
using namespace std;
int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);
	ll a, b, c;
	cin >> a >> b >> c >> d;
	ll aa = (a-1) / c;
	ll bb = b / c;
	ll cc = (a-1) / d;
	ll dd = b / d;
	ll e = _lcm(c, d);
	ll ee = (a-1) / e;
	ll eee = b / e;
	
	cout << (b - a) - (bb - aa) - (dd - cc) + (eee - ee) + 1 << endl;
	return 0;
}

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #incluse; did you mean #include?
    1 | #incluse<iostream>
      |  ^~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:4:9: error: 'cin' was not declared in this scope
    4 |         cin.tie(0);
      |         ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #incluse<iostream>
a.cc:5:9: error: 'ios' has not been declared
    5 |         ios::sync_with_stdio(false);
      |         ^~~
a.cc:6:9: error: 'll' was not declared in this scope
    6 |         ll a, b, c;
      |         ^~
a.cc:7:16: error: 'a' was not declared in this scope
    7 |         cin >> a >> b >> c >> d;
      |                ^
a.cc:7:21: error: 'b' was not declared in this scope
    7 |         cin >> a >> b >> c >> d;
      |                     ^
a.cc:7:26: error: 'c' was not declared in this scope
    7 |         cin >> a >> b >> c >> d;
      |                          ^
a.cc:7:31: error: 'd' was not declared in this scope
    7 |         cin >> a >> b >> c >> d;
      |                               ^
a.cc:8:11: error: expected ';' before 'aa'
    8 |         ll aa = (a-1) / c;
      |           ^~~
      |           ;
a.cc:9:11: error: expected ';' before 'bb'
    9 |         ll bb = b / c;
      |           ^~~
      |           ;
a.cc:10:11: error: expected ';' before 'cc'
   10 |         ll cc = (a-1) / d;
      |           ^~~
      |           ;
a.cc:11:11: error: expected ';' before 'dd'
   11 |         ll dd = b / d;
      |           ^~~
      |           ;
a.cc:12:11: error: expected ';' before 'e'
   12 |         ll e = _lcm(c, d);
      |           ^~
      |           ;
a.cc:13:11: error: expected ';' before 'ee'
   13 |         ll ee = (a-1) / e;
      |           ^~~
      |           ;
a.cc:14:11: error: expected ';' before 'eee'
   14 |         ll eee = b / e;
      |           ^~~~
      |           ;
a.cc:16:9: error: 'cout' was not declared in this scope
   16 |         cout << (b - a) - (bb - aa) - (dd - cc) + (eee - ee) + 1 << endl;
      |         ^~~~
a.cc:16:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:16:28: error: 'bb' was not declared in this scope
   16 |         cout << (b - a) - (bb - aa) - (dd - cc) + (eee - ee) + 1 << endl;
      |                            ^~
a.cc:16:33: error: 'aa' was not declared in this scope
   16 |         cout << (b - a) - (bb - aa) - (dd - cc) + (eee - ee) + 1 << endl;
      |                                 ^~
a.cc:16:40: error: 'dd' was not declared in this scope
   16 |         cout << (b - a) - (bb - aa) - (dd - cc) + (eee - ee) + 1 << endl;
      |                                        ^~
a.cc:16:45: error: 'cc' was not declared in this scope
   16 |         cout << (b - a) - (bb - aa) - (dd - cc) + (eee - ee) + 1 << endl;
      |                                             ^~
a.cc:16:52: error: 'eee' was not declared in this scope
   16 |         cout << (b - a) - (bb - aa) - (dd - cc) + (eee - ee) + 1 << endl;
      |                                                    ^~~
a.cc:16:58: error: 'ee' was not declared in this scope
   16 |         cout << (b - a) - (bb - aa) - (dd - cc) + (eee - ee) + 1 << endl;
      |                                                          ^~
a.cc:16:69: error: 'endl' was not declared in this scope
   16 |         cout << (b - a) - (bb - aa) - (dd - cc) + (eee - ee) + 1 << endl;
      |                                                                     ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | #incluse<iostream>