Submission #1128196

#	Time	Username	Problem	Language	Result	Execution time	Memory
1128196		Ludissey	Worm Worries (BOI18_worm)	C++20	22 / 100	33 ms	756 KiB

worm

#include <bits/stdc++.h>
#define sz(a) (int)a.size()
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
using namespace std;
vector<int> a;
map<pair<int,pair<int,int>>,int> req;
int n,m,k,q; 

void give_ans(int x, int y, int z){
    cout << "! " << x+1 << " " << y+1 << " " << z+1 << endl;
    return;
}
int ask(int x, int y, int z){
    if(req.find({x,{y,z}})!=req.end()) return req[{x,{y,z}}];
    if(x<0||x>=n||y<0||y>=m||z<0||z>=k) return -1e9;
    cout << "? " << x+1 << " " << y+1 << " " << z+1 << endl;
    int ans; cin>>ans;
    req[{x,{y,z}}]=ans;
    return ans;
}

const int RAND=350;

signed main() {
    ios_base::sync_with_stdio(false); cin.tie(nullptr);
    cin >> n >> m >> k >> q;
    mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
    vector<pair<int,pair<int,int>>> randomPOINT(RAND);
    for (int i = 0; i < RAND; i++)
    {
        randomPOINT[i].second={uniform_int_distribution<int>(0, n-1)(rng),uniform_int_distribution<int>(0, m-1)(rng)};
        randomPOINT[i].first=ask(randomPOINT[i].second.first, randomPOINT[i].second.second,0);
    }
    sort(rall(randomPOINT));
    int x=randomPOINT[0].second.first;
    int y=randomPOINT[0].second.second;
    while(true){
        int u=ask(x,y+1,0);
        int d=ask(x,y-1,0);
        int l=ask(x-1,y,0);
        int r=ask(x+1,y,0);
        int c=ask(x,y,0);
        int mx=max(max(u,d),max(l,r));
        if(c>=mx) break;
        else if(u==mx) y++;
        else if(d==mx) y--;
        else if(l==mx) x--;
        else if(r==mx) x++;
    }
    give_ans(x,y,0);
    return 0;
}

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