Submission #714500

#	Time	Username	Problem	Language	Result	Execution time	Memory
714500		MilosMilutinovic	Worm Worries (BOI18_worm)	C++14	0 / 100	1327 ms	20752 KiB

worm

#include <bits/stdc++.h>

using i64 = long long;

const int dx[6] = {-1, 1, 0, 0, 0, 0};
const int dy[6] = {0, 0, -1, 1, 0, 0};
const int dz[6] = {0, 0, 0, 0, 1, -1};

int main() {
    std::ios::sync_with_stdio(false);
    std::cin.tie(nullptr);

    int n, m, k, q;
    std::cin >> n >> m >> k >> q;

    std::map<std::array<int, 3>, int> mp;
    std::function<int(int, int, int)> query = [&](int x, int y, int z) {
        if (x < 1 || x > n || y < 1 || y > m || z < 1 || z > k) {
            return 0;
        }

        if (mp.count({x, y, z})) {
            return mp[{x, y, z}];
        }

        std::cout << "? " << x << " " << y << " " << z << std::endl;

        int v;
        std::cin >> v;

        mp[{x, y, z}] = v;
        return v;
    };

    std::mt19937 rng(time(0));
    std::function<void(int, int, int)> dfs = [&](int x, int y, int z) {
        int p[6] = {0, 1, 2, 3, 4, 5};
        std::shuffle(p, p + 6, rng);
        for (int i = 0; i < 6; i++) {
            if (query(x + dx[p[i]], y + dy[p[i]], z + dz[p[i]]) > query(x, y, z)) {
                dfs(x + dx[p[i]], y + dy[p[i]], z + dz[p[i]]);
                return;
            }
        }
        std::cout << "! " << x << " " << y << " " << z << std::endl;
        exit(0);
    };

    dfs((rng() % n) + 1, (rng() % m) + 1, (rng() % k) + 1);

    return 0;
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 22
• Subtask 3: 0 / 12
• Subtask 4: 0 / 19
• Subtask 5: 0 / 14
• Subtask 6: 0 / 23