func_code_string: #include <bits/stdc++.h>   using namespace std;   const int mod = 1e9 + 7;   const int maxn = 1e6 + 5;   long long int power(long long int base, long long int exp) {     long long int res = 1;     while (exp) {       if (exp % 2) res *= base;       base *= base;       res %= mod;       base %= mod;       exp /= 2;     }     return res;   }   long long int x[2], y[2], val[2];   int main() {     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cout.tie(NULL);     long long int i, n, a, b, c;     for (long long int j = 0; j < 2; j++) cin >> x[j] >> y[j];     cin >> n;     long long int ans = 0;     for (i = 1; i <= n; i++) {       cin >> a >> b >> c;       for (long long int j = 0; j < 2; j++) {         val[j] = -1;         if (a * x[j] + b * y[j] + c > 0) val[j] = 1;       }       if (val[1] > 0 && val[0] < 0) ans++;       if (val[1] < 0 && val[0] > 0) ans++;     }     cout << ans;     return 0;   }   