Submission #291019

#	Time	Username	Problem	Language	Result	Execution time	Memory
291019		Tc14	Mechanical Doll (IOI18_doll)	C++17	37 / 100	152 ms	8452 KiB

doll

//#pragma GCC optimize("O3")
#include <bits/stdc++.h>
#include "doll.h"
using namespace std;
#define ve vector
typedef long long ll;
typedef pair<int, int> pii;
const int INF = 1e9 + 10;

void create_circuit(int m, ve<int> A) {

    int n, l, s, k, z;
    ve<int> C, X, Y;
    ve<bool> B;

    n = A.size();
    l = ceil(log2(n + 1));
    s = 1 << l;

    C = ve<int>(m + 1);
    X = ve<int>(s - 1);
    Y = ve<int>(s - 1);
    B = ve<bool>(s);

    for (int i = 0; i <= m; i++) C[i] = -1;

    for (int i = 1; i < s / 2; i++) {
        X[i - 1] = -(2 * i);
        Y[i - 1] = -(2 * i + 1);
    }

    for (int i = 0; i < s; i++) {

        k = 1;
        for (int j = 0; j < l - 1; j++) {
            if (B[k]) {
                B[k] = !B[k];
                k = -Y[k - 1];
            }
            else {
                B[k] = !B[k];
                k = -X[k - 1];
            }
        }

        if (i < n) z = A[i];
        else if (i == s - 1) z = 0;
        else z = -1;

        if (B[k]) {
            B[k] = !B[k];
            Y[k - 1] = z;
        }
        else {
            B[k] = !B[k];
            X[k - 1] = z;
        }
    }

/*
    for (int i = 0; i < s - 1; i++) {
        cout << X[i] << " " << Y[i] << endl;
    }
*/

    answer(C, X, Y);
}

• Subtask 1: 0 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 9 / 18
• Subtask 6: 28 / 56