#include<bits/stdc++.h>
//#include "doll.h"
#pragma GCC optimize("O3")
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#pragma GCC target("avx2")
#define all(v) v.begin(),v.end()
using namespace std;
using ll = long long;
using P = pair<ll, ll>;
using PP = pair<ll, P>;
const ll n_ =1e5+100, inf = (ll)2e9 * (ll)1e9 + 7, mod = 1e9+7;
ll n, m, tc = 1, a, b, c, d, sum, x, y, z, base, ans, k;
ll gcd(ll x,ll y){
if(!y)return x;
return gcd(y,x%y);
}
void create_circuit(int M, std::vector<int> A) {
int N = A.size();
std::vector<int> C(M + 1);
//subtask_1
for(int i=0;i+1<N;i++)C[A[i]]=A[i+1];
C[0] = A[0];
std::vector<int> X,Y;
answer(C, X, Y);
}
Compilation message
doll.cpp: In function 'void create_circuit(int, std::vector<int>)':
doll.cpp:26:2: error: 'answer' was not declared in this scope
26 | answer(C, X, Y);
| ^~~~~~
