func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n, m, a, b, i, j, t, p = 0, q = 0;     int x[200001];     cin >> n >> m;     for (i = 1; i <= n; ++i) {       cin >> t;       if (t == -1)         p++;       else         q++;     }     for (i = 0; i < m; ++i) {       cin >> a >> b;       if ((b - a + 1) % 2 == 0 && (b - a + 1) / 2 <= p && (b - a + 1) / 2 <= q)         cout << 1 << endl;       else         cout << 0 << endl;     }     return 0;   }   