func_code_string: #include <bits/stdc++.h>   using namespace std;   int ncr(int n, int r) {     int ret = 1;     for (int i = 1; i <= n - r; i++) {       ret = (ret * (n - r + i)) / i;     }     return ret;   }   int main() {     int n;     cin >> n;     int x;     long long pos = 0;     long long neg = 0;     long long prod = 1;     for (int i = 0; i < n; i++) {       scanf( %d , &x);       if (x < 0) {         prod = (prod + 1) & 1;       }       if (prod) {         pos++;       } else {         neg++;       }     }     cout << neg * pos + neg <<    ;     cout << (neg * (neg - 1)) / 2 + (pos * (pos - 1)) / 2 + pos << endl;     return 0;   }   