Submission #291753

#	Time	Username	Problem	Language	Result	Execution time	Memory
291753		fivefourthreeone	Mechanical Doll (IOI18_doll)	C++17	Compilation error	0 ms	0 KiB

doll

#include "doll.h"
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#include <bits/stdc++.h>
#define owo(i,a, b) for(auto i=(a);i<(b); ++i)
#define uwu(i,a, b) for(auto i=(a)-1; i>=(b); --i)
#define senpai push_back
#define ttgl pair<int, int>
#define ayaya cout<<"ayaya~"<<endl
using namespace std;
/*#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
#define ordered_set tree<ttgl, null_type,less<ttgl>, rb_tree_tag,tree_order_statistics_node_update>*/
 
using ll = long long;
using ld = long double;
const ll MOD = 998244353;
const ll root = 62;
int gcd(int a,int b){return b?gcd(b,a%b):a;}
ll binpow(ll a,ll b){ll res=1;while(b){if(b&1)res=(res*a)%MOD;a=(a*a)%MOD;b>>=1;}return res;}
ll modInv(ll a){return binpow(a, MOD-2);}
const double PI = acos(-1);
const double eps = 1e-6;
const int INF = 0x3f3f3f3f;
const int NINF = 0xc0c0c0c0;
const ll INFLL = 0x3f3f3f3f3f3f3f3f;
const ll NINFLL = 0xc0c0c0c0c0c0c0c0;
const int mxN = 400001;
int n, m;
ttgl arr[mxN];
int st[mxN];
/*void answer(vector<int> c, vector<int> x, vector<int> y) {
    for(int k: c) {
        cout<<k<<" ";
    }
    cout<<"\n";
    for(int k: x) {
        cout<<k<<" ";
    }
    cout<<"\n";
    for(int k: y) {
        cout<<k<<" ";
    }
    cout<<"\n";
}*/
void create_circuit(int M, int* A) {
    n = *(&A + 1) - A;
    m = M;
    if(n==1) {
        vector<int> c(m+1, 0);
        vector<int> x(0);
        vector<int> y(0);
        c[0] = A[0];
        answer(c, x, y);
    }
    vector<int> c(m+1, -1);
    int h = 0;
    int num = 1;
    while(num < n) {
        num*=2;
        h++;
    }
    int cnt = 1;
    owo(i, 0, num) {
        int curr = 0;
        int nxt;
        if(i < n) {
            owo(i, 0, h-1) {
                if(st[curr]) {
                    if(arr[curr].second==0) {
                        arr[curr].second = -(cnt++);
                    }
                    nxt = -arr[curr].second;
                }else {
                    if(arr[curr].first==0) {
                        arr[curr].first = -(cnt++);
                    }
                    nxt = -arr[curr].first;
                }
                st[curr]^=1;
                curr = nxt;
            }
            if(st[curr]) {
                arr[curr].second = A[i];
            }else {
                arr[curr].first = A[i];
            }
            st[curr]^=1;
        }else {
            owo(i, 0, h) {
                if(st[curr]) {
                    if(arr[curr].second==0&&i==num-1) {
                        arr[curr].second = 1;
                        nxt = 0;
                        break;
                    }
                    nxt = -arr[curr].second;
                }else {
                    nxt = -arr[curr].first;
                }
                st[curr]^=1;
                if(nxt==0) break;
                curr = nxt;
            }
        }
    }
    c[A[n-1]] = 0;
    vector<int> x(cnt);
    vector<int> y(cnt);
    owo(i, 0, cnt) {
        x[i] = arr[i].first - 1;
        y[i] = arr[i].second - 1;
    }
    answer(c, x, y);
}
/*int main() {
    //freopen("file.in", "r", stdin);
    //freopen("file.out", "w", stdout);
    mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
    cin.tie(0)->sync_with_stdio(0);
    return 0;
}*/

Compilation message (stderr)

doll.cpp:3: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    3 | #pragma GCC optimization ("O3")
      | 
doll.cpp:4: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    4 | #pragma GCC optimization ("unroll-loops")
      | 
/usr/bin/ld: /tmp/ccxLA9Gr.o: in function `main':
grader.cpp:(.text.startup+0x168): undefined reference to `create_circuit(int, std::vector<int, std::allocator<int> >)'
collect2: error: ld returned 1 exit status