Language: C++

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
typedef pair<ll, ll> p_ll;

template<class T>
void debug(T itr1, T itr2) { auto now = itr1; while(now<itr2) { cout << *now << " "; now++; } cout << endl; }
#define repr(i,from,to) for (int i=(int)from; i<(int)to; i++)
#define all(vec) vec.begin(), vec.end()
#define rep(i,N) repr(i,0,N)
#define per(i,N) for (int i=(int)N-1; i>=0; i--)

const ll MOD = pow(10,9)+7;
const ll LLINF = pow(2,61)-1;
const int INF = pow(2,30)-1;

vector<ll> fac;
void c_fac(int x=pow(10,6)+10) { fac.resize(x,true); rep(i,x) fac[i] = i ? (fac[i-1]*i)%MOD : 1; }
ll inv(ll a, ll m=MOD) { ll b = m, x = 1, y = 0; while (b!=0) { int d = a/b; a -= b*d; swap(a,b); x -= y*d; swap(x,y); } return (x+m)%m; }
ll nck(ll n, ll k) { return fac[n]*inv(fac[k]*fac[n-k]%MOD)%MOD; }
ll gcd(ll a, ll b) { if (a<b) swap(a,b); return b==0 ? a : gcd(b, a%b); }
ll lcm(ll a, ll b) { return a/gcd(a,b)*b; }


int main() {
  int N; cin >> N;
  double A[N], B[N]; rep(i,N) cin >> A[i] >> B[i];

  ll p2[N+1] = {}; rep(i,N+1) p2[i] = i==0 ? 1 : (p2[i-1]*2)%MOD;
  ll az = 0, bz = 0;
  map<p_ll, ll> adb, bda; 
  rep(i,N) {
    if (A[i]==0&&B[i]==0) continue;
    else if (A[i]==0) az++;
    else if (B[i]==0) bz++;
    else {
      ll gab = gcd(abs(A[i]), abs(B[i])); A[i] /= gab; B[i] /= gab;
      if (B[i]<0) { A[i] *= -1; B[i] *= -1; }
      if (A[i]>0) adb[make_pair(A[i],B[i])]++;
      else bda[make_pair(B[i],-1*A[i])]++;
    }
  }
  // for (auto x: adb) cout << x.first << "->" << x.second << endl;

  ll result = 1;
  for (auto x: adb) {
    if (bda.count(x.first)) {
      result = result * (p2[x.second]+p2[bda[x.first]]-1) % MOD;
      // cout << x.first.first << "," << x.first.second << "->" << (p2[x.second]+p2[bda[x.first]]-1) << endl;
    }
    else {
      result = result * p2[x.second] % MOD;
      // cout << x.first.first << "," << x.first.second << "->" << p2[x.second] << endl;
    }
  }

  for (auto x: bda) {
    if (adb.count(x.first)) continue;
    else {
      result = result * p2[x.second] % MOD;
      // cout << x.first.first << "," << x.first.second << "->" << p2[x.second] << endl;
    }
  }

  result = result * (p2[az]+p2[bz]-1) % MOD;

  result = (result-1+MOD) % MOD;
  cout << result << endl;
  return 0;
}

Compiler output:
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:58,
                 from a.cc:1:
/usr/include/c++/14/numeric: In instantiation of 'constexpr std::common_type_t<_Mn, _Nn> std::gcd(_Mn, _Nn) [with _Mn = double; _Nn = double; common_type_t<_Mn, _Nn> = double]':
a.cc:38:19:   required from here
   38 |       ll gab = gcd(abs(A[i]), abs(B[i])); A[i] /= gab; B[i] /= gab;
      |                ~~~^~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/numeric:175:21: error: static assertion failed: std::gcd arguments must be integers
  175 |       static_assert(is_integral_v<_Mn> && is_integral_v<_Nn>,
      |                     ^~~~~~~~~~~~~~~~~~
/usr/include/c++/14/numeric:175:21: note: 'std::is_integral_v<double>' evaluates to false
In file included from /usr/include/c++/14/bits/stl_pair.h:60,
                 from /usr/include/c++/14/bits/stl_algobase.h:64,
                 from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/type_traits: In instantiation of 'struct std::make_unsigned<double>':
/usr/include/c++/14/type_traits:2076:11:   required by substitution of 'template<class _Tp> using std::make_unsigned_t = typename std::make_unsigned::type [with _Tp = double]'
 2076 |     using make_unsigned_t = typename make_unsigned<_Tp>::type;
      |           ^~~~~~~~~~~~~~~
/usr/include/c++/14/numeric:182:24:   required from 'constexpr std::common_type_t<_Mn, _Nn> std::gcd(_Mn, _Nn) [with _Mn = double; _Nn = double; common_type_t<_Mn, _Nn> = double]'
  182 |       return __detail::__gcd<make_unsigned_t<_Ct>>(__m2, __n2);
      |              ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:38:19:   required from here
   38 |       ll gab = gcd(abs(A[i]), abs(B[i])); A[i] /= gab; B[i] /= gab;
      |                ~~~^~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/type_traits:1929:13: error: invalid use of incomplete type 'class std::__make_unsigned_selector<double, false, false>'
 1929 |     { using type = typename __make_unsigned_selector<_Tp>::__type; };
      |             ^~~~
/usr/include/c++/14/type_traits:1837:11: note: declaration of 'class std::__make_unsigned_selector<double, false, false>'
 1837 |     class __make_unsigned_selector;
      |           ^~~~~~~~~~~~~~~~~~~~~~~~