제출 #416426

#제출 시각아이디문제언어결과실행 시간메모리
416426KoDThe Collection Game (BOI21_swaps)C++17
100 / 100
8 ms396 KiB
#include <bits/stdc++.h>
#include "swaps.h"

template <class T> using Vec = std::vector<T>;

void solve(int N, int V) {
    Vec<int> ord(N);
    std::iota(ord.begin(), ord.end(), 1);
    int logn = 0;
    while ((1 << logn) < N) {
        logn += 1;
    }
    const int N2 = 1 << logn;
    ord.resize(N2, 0);
    for (int h = 1; h <= logn; ++h) {
        for (int t = h - 1; t >= 0; --t) {
            const int bit = (1 << t);
            for (int i = 0; i < N2; ++i) {
                if (!(i >> t & 1) and ord[i] != 0 and ord[i + bit] != 0) {
                    schedule(ord[i], ord[i + bit]);
                }
            }
            int idx = 0;
            const auto resp = visit();
            for (int i = 0; i < N2; ++i) {
                if (!(i >> t & 1)) {
                    const auto x = (ord[i] == 0 ? 0 : (ord[i + bit] == 0 ? 1 : resp[idx++]));
                    if (!((i >> h & 1) ^ x)) {
                        std::swap(ord[i], ord[i + bit]);
                    }
                }
            }
        }
    }
    ord.resize(N);
    answer(ord);
}
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