func_code_string: #include <bits/stdc++.h>   using namespace std;   bool jolmetsz(long long a, long long b, long long c, long long x1, long long y1,                 long long x2, long long y2) {     return -c - a * x1 < b * y1 && -c - a * x2 > b * y2;   }   int main() {     long long x1, x2, y1, y2, n, db = 0;     cin >> x1 >> y1 >> x2 >> y2 >> n;     if (y2 < y1) {       swap(y1, y2);       swap(x1, x2);     }     int lep = 0;     for (int i = 0; i < n; i++) {       long long a, b, c;       cin >> a >> b >> c;       if (jolmetsz(a, b, c, x1, y1, x2, y2) || jolmetsz(a, b, c, x2, y2, x1, y1))         db++;     }     cout << db << endl;   }   