func_code_string: #include <bits/stdc++.h>   using namespace std;   int main(int argc, char const *argv[]) {     int x1, y1, x2, y2, res = 0;     scanf( %d%d%d%d , &x1, &y1, &x2, &y2);     int n;     scanf( %d , &n);     for (int i = 0; i < (int)(n); ++i) {       long long a, b, c;       scanf( %lld%lld%lld , &a, &b, &c);       long long t1 = a * x1 + b * y1 + c;       long long t2 = a * x2 + b * y2 + c;       t1 = t1 > 0, t2 = t2 > 0;       res += t1 != t2;     }     printf( %d n , res);     return 0;   }   