Language: C++

#include <iostream>
#include <vector>
#include <complex>
using namespace std;
typedef complex<long long> P;

inline P::value_type cross(const P& a, const P& b) { return a.real()*b.imag() - b.real()*a.imag(); }

bool ok(const vector<P>& ps, int N, int i1, int i2)
{
  const int NM = ps.size();
  const int color = i1 < N;
  int cnt[2][2] = {{0, 0}, {0, 0}};
  for (int i = 0; i < NM; i++) {
    const long long c = cross(ps[i2] - ps[i1], ps[i] - ps[i1]);
    const int col = i < N;
    if (c == 0) {
      if (color != col) {
        return false;
      }
    } else {
      ++cnt[col][c < 0];
    }
  }
  return (cnt[0][0] == 0 && cnt[1][1] == 0) || (cnt[0][1] == 0 && cnt[1][0] == 0);
}

bool check(const vector<P>& ps, int N)
{
  for (int i = 0; i < N; i++) {
    for (int j = i+1; j < N; j++) {
      if (ok(ps, N, i, j)) {
        return true;
      }
    }
  }
  const int NM = ps.size();
  for (int i = N; i < NM; i++) {
    for (int j = i+1; j < NM; j++) {
      if (ok(ps, N, i, j)) {
        return true;
      }
    }
  }
  return false;
}

bool check_edgecase(const vector<P>& ps, const int N)
{
  const int NM = ps.size();
  int x = ps[0].real() - ps[N].real();
  if (x != 0) {
    x /= abs(x);
  }
  for (int i = 0; i < N; i++) {
    for (int j = N; j < NM; j++) {
      int xx = ps[i].real() - ps[j].real();
      if (xx != 0) {
        xx /= abs(xx);
      }
      if (x != xx) {
        return false;
      }
    }
  }
  int y = ps[0].imag() - ps[N].imag();
  if (y != 0) {
    y /= abs(y);
  }
  for (int i = 0; i < N; i++) {
    for (int j = N; j < NM; j++) {
      int yy = ps[i].imag() - ps[j].imag();
      if (yy != 0) {
        yy /= abs(yy);
      }
      if (y != yy) {
        return false;
      }
    }
  }
  return true;
}

int main()
{
  int N, M;
  while (cin >> N >> M && N != 0) {
    vector<P> ps(N+M);
    for (int i = 0; i < N+M; i++) {
      cin >> ps[i].real() >> ps[i].imag();
    }

    bool straight = true;
    if (N+M > 2) {
      const long long c0 = cross(ps[2]-ps[0], ps[1]-ps[0]);
      for (int i = 3; i < N+M; i++) {
        const long long c = cross(ps[i]-ps[0], ps[1]-ps[0]);
        if (c != c0) {
          straight = false;
          break;
        }
      }
    }
    if (straight) {
      cout << (check_edgecase(ps, N) ? "YES" : "NO") << endl;
    } else {
      cout << (check(ps, N) ? "YES" : "NO") << endl;
    }
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:90:11: error: no match for 'operator>>' (operand types are 'std::istream' {aka 'std::basic_istream<char>'} and 'long long int')
   90 |       cin >> ps[i].real() >> ps[i].imag();
      |       ~~~ ^~ ~~~~~~~~~~~~
      |       |                |
      |       |                long long int
      |       std::istream {aka std::basic_istream<char>}
In file included from /usr/include/c++/14/iostream:42,
                 from a.cc:1:
/usr/include/c++/14/istream:170:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(bool&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  170 |       operator>>(bool& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:170:7: note:   conversion of argument 1 would be ill-formed:
a.cc:90:24: error: cannot bind non-const lvalue reference of type 'bool&' to a value of type 'long long int'
   90 |       cin >> ps[i].real() >> ps[i].imag();
      |              ~~~~~~~~~~^~
/usr/include/c++/14/istream:174:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(short int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  174 |       operator>>(short& __n);
      |       ^~~~~~~~
/usr/include/c++/14/istream:174:7: note:   conversion of argument 1 would be ill-formed:
a.cc:90:24: error: cannot bind non-const lvalue reference of type 'short int&' to a value of type 'long long int'
   90 |       cin >> ps[i].real() >> ps[i].imag();
      |              ~~~~~~~~~~^~
/usr/include/c++/14/istream:177:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(short unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  177 |       operator>>(unsigned short& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:177:7: note:   conversion of argument 1 would be ill-formed:
a.cc:90:24: error: cannot bind non-const lvalue reference of type 'short unsigned int&' to a value of type 'long long int'
   90 |       cin >> ps[i].real() >> ps[i].imag();
      |              ~~~~~~~~~~^~
/usr/include/c++/14/istream:181:7: note: candidate: 'std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(int&) [with _CharT = char; _Traits = std::char_traits<char>]' (near match)
  181 |       operator>>(int& __n);
      |       ^~~~~~~~
/usr/include/c++/14/istream:181:7: note:   conversion of argument 1 would be ill-formed:
a.cc:90:24: error: cannot bind non-const lvalue reference of type 'int&' to a value of type 'long long int'
   90 |       cin >> ps[i].real() >> ps[i].imag();
      |              ~~~~~~~~~~^~
/usr/include/c++/14/istream:184:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  184 |       operator>>(unsigned int& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:184:7: note:   conversion of argument 1 would be ill-formed:
a.cc:90:24: error: cannot bind non-const lvalue reference of type 'unsigned int&' to a value of type 'long long int'
   90 |       cin >> ps[i].real() >> ps[i].imag();
      |              ~~~~~~~~~~^~
/usr/include/c++/14/istream:188:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  188 |       operator>>(long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:188:7: note:   conversion of argument 1 would be ill-formed:
a.cc:90:24: error: cannot bind non-const lvalue reference of type 'long int&' to a value of type 'long long int'
   90 |       cin >> ps[i].real() >> ps[i].imag();
      |              ~~~~~~~~~~^~
/usr/include/c++/14/istream:192:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  192 |       operator>>(unsigned long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:192:7: note:   conversion of argument 1 would be ill-formed:
a.cc:90:24: error: cannot bind non-const lvalue reference of type 'long unsigned int&' to a value of type 'long long int'
   90 |       cin >> ps[i].real() >> ps[i].imag();
      |              ~~~~~~~~~~^~
/usr/include/c++/14/istream:199:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  199 |       operator>>(long long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:199:7: note:   conversion of argument 1 would be ill-formed:
a.cc:90:24: error: cannot bind non-const lvalue reference of type 'long long int&' to an rvalue of type 'long long int'
   90 |       cin >> ps[i].real() >> ps[i].imag();
      |              ~~~~~~~~~~^~
/usr/include/c++/14/istream:203:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long long unsigned int&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  203 |       operator>>(unsigned long long& __n)
      |       ^~~~~~~~
/usr/include/c++/14/istream:203:7: note:   conversion of argument 1 would be ill-formed:
a.cc:90:24: error: cannot bind non-const lvalue reference of type 'long long unsigned int&' to a value of type 'long long int'
   90 |       cin >> ps[i].real() >> ps[i].imag();
      |              ~~~~~~~~~~^~
/usr/include/c++/14/istream:219:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(float&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  219 |       operator>>(float& __f)
      |       ^~~~~~~~
/usr/include/c++/14/istream:219:7: note:   conversion of argument 1 would be ill-formed:
a.cc:90:24: error: cannot bind non-const lvalue reference of type 'float&' to a value of type 'long long int'
   90 |       cin >> ps[i].real() >> ps[i].imag();
      |              ~~~~~~~~~~^~
/usr/include/c++/14/istream:223:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(double&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  223 |       operator>>(double& __f)
      |       ^~~~~~~~
/usr/include/c++/14/istream:223:7: note:   conversion of argument 1 would be ill-formed:
a.cc:90:24: error: cannot bind non-const lvalue reference of type 'double&' to a value of type 'long long int'
   90 |       cin >> ps[i].real() >> ps[i].imag();
      |              ~~~~~~~~~~^~
/usr/include/c++/14/istream:227:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(long double&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  227 |       operator>>(long double& __f)
      |       ^~~~~~~~
/usr/include/c++/14/istream:227:7: note:   conversion of argument 1 would be ill-formed:
a.cc:90:24: error: cannot bind non-const lvalue reference of type 'long double&' to a value of type 'long long int'
   90 |       cin >> ps[i].real() >> ps[i].imag();
      |              ~~~~~~~~~~^~
/usr/include/c++/14/istream:328:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(void*&) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  328 |       operator>>(void*& __p)
      |       ^~~~~~~~
/usr/include/c++/14/istream:328:7: note:   conversion of argument 1 would be ill-formed:
a.cc:90:24: error: invalid conversion from 'long long int' to 'void*' [-fpermissive]
   90 |       cin >> ps[i].real() >> ps[i].imag();
      |              ~~~~~~~~~~^~
      |                        |
      |                        long long int
a.cc:90:24: error: cannot bind rvalue '(void*)(& ps.std::vector<std::complex<long long int> >::operator[](((std::vector<std::complex<long long int> >::size_type)i)))->std::complex<long long int>::real()' to 'void*&'
/usr/include/c++/14/istream:122:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__istream_type& (*)(__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>]' (near match)
  122 |       operator>>(__istream_type& (*__pf)(__istream_type&))
      |       ^~~~~~~~
/usr/include/c++/14/istream:122:7: note:   conversion of argument 1 would be ill-formed:
a.cc:90:24: error: invalid conversion from 'long long int' to 'std::basic_istream<char>::__istream_type& (*)(std::basic_istream<char>::__istream_type&)' {aka 'std::basic_istream<char>& (*)(std::basic_istream<char>&)'} [-fpermissive]
   90 |       cin >> ps[i].real() >> ps[i].imag();
      |              ~~~~~~~~~~^~
      |                        |
      |                        long long int
/usr/include/c++/14/istream:126:7: note: candidate: 'std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(__ios_type& (*)(__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; __istream_type = std::basic_istream<char>; __ios_type = std::basic_ios<char>]' (near match)
  126 |       operator>>(__ios_type& (*__pf)(__ios_type&))
      |       ^~~~~~~~
/usr/include/c++/14/istream:126:7: note:   conversion of argument 1 would be ill-formed:
a.cc:90:24: error: i