func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 1e5 + 10;   const int MAX = 30;   long long x, num;   long long a[40];   bool check(long long x) {     for (int i = 1; i < MAX; ++i) {       if (a[i] == x) return 1;     }     return 0;   }   vector<int> ans;   int main() {     long long x = 1;     for (int i = 1; i < MAX; ++i) {       x <<= 1;       a[i] = x - 1;     }     scanf( %lld , &x);     while (check(x) == 0) {       int i;       num++;       for (i = MAX - 1; i >= 0; --i) {         if (x >> i) break;       }       x ^= a[i + 1];       ans.push_back(i + 1);       if (check(x)) break;       num++;       x++;     }     printf( %d n , num);     for (auto i : ans) printf( %d  , i);     return 0;   }   