func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     vector<int> v;     vector<int>::iterator j;     int n, i;     cin >> n;     n = 2 * n;     int cnt = 0;     int x[n];     int cnt2 = 0;     for (i = 0; i < n; i++) {       cin >> x[i];       if (i % 2 == 0) {         if (x[i] < 0) {           cnt++;         } else if (x[i] > 0) {           cnt2++;         }       }     }     if (cnt <= 1 || cnt2 == 1) {       cout <<  Yes ;       return 0;     } else if (cnt == n / 2 || cnt2 == n / 2) {       cout <<  Yes ;       return 0;     }     cout <<  No ;   }   