func_code_string: #include <bits/stdc++.h>   using namespace std;   vector<int> A;   int F(int q, int w, int pr) {     if (w - q <= 2) return w - q;     int s = q;     int g = 0;     int ans = 2;     while (s < w) {       int f = s;       int st = 1;       while (st <= (A[s] - pr)) st <<= 1;       st = pr + (st >> 1);       while (f < w && (A[f] & st) == st) f++;       ans = max(ans, F(s, f, st) + g + ((f == w) ? 0 : 1));       s = f;       g++;     }     return ans;   }   int main() {     int n;     scanf( %d , &n);     A.resize(n);     for (int i = 0; i < n; i++) scanf( %d , &A[i]);     sort(A.begin(), A.end());     reverse(A.begin(), A.end());     printf( %d n , n - F(0, n, 0));     return 0;   }   