#include <bits/stdc++.h> #include "machine.h" using namespace std; #define ll long long const ll mmod = 998244353; #define vl vector<long long> #define vll vector<vector<long long>> #define pl pair<long long, long long> #define vb vector<bool> std::vector<int> find_permutation(int N){ if (N % 2 == 1){ vector<int> cisla; x = 0; for (ll i = 0; i < N; i++){ cisla.push_back(i); x ^= i; } vector<int> permutace = use_machine(cisla); for (ll i = 0; i < N; i++){ x ^= permutace[i]; } for (ll i=0; i < N; i++){ permutace[i] ^= x; } return permutace; } else{ vector<int> cisla; for (ll i = 0; i < N; i++){ int x = i << 8; cisla.push_back(x); } vector<int> permutace = use_machine(cisla); for (ll i = 0; i < N; i++){ permutace[i] = (permutace[i] >> 8); } return permutace; } }

machine.cpp: In function 'std::vector<int> find_permutation(int)':
machine.cpp:16:9: error: 'x' was not declared in this scope
   16 |         x = 0;
      |         ^