func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     vector<int> jumps;     int count, test, total, steps, pos;     ios_base::sync_with_stdio(false);     cin.tie(NULL);     cin >> total;     pos = steps = 0;     count = 1;     jumps.clear();     jumps.assign(total, 0);     jumps[0] = 1;     for (int i = 0; i < 2 * total; i++) {       steps = (steps + 1) % total;       pos = (pos + steps) % total;       if (!jumps[pos]) {         jumps[pos] = 1;         count++;       }     }     (count == total) ? cout <<  YES n  : cout <<  NO n ;     return 0;   }   