Submission #440897

#	Time	Username	Problem	Language	Result	Execution time	Memory
440897		Haruto810198	Worm Worries (BOI18_worm)	C++17	0 / 100	819 ms	992468 KiB

worm

#include <bits/stdc++.h>

using namespace std;

#define int long long
#define double long double

#define FOR(i, l, r, d) for(int i=(l); i<=(r); i+=(d))
#define szof(x) ((int)(x).size())

#define vi vector<int>
#define pii pair<int,int>

#define F first
#define S second

#define pb push_back
#define eb emplace_back
#define mkp make_pair

const int INF = 2147483647;
const int LNF = INF*INF;
const int MOD = 1000000007;
const int mod = 998244353;

//#pragma GCC optimize("Ofast")
//#pragma GCC optimize("unroll-loops")

int X, Y, Z;
int Q;

vector<vector<vi>> arr;

int query(int x, int y, int z){

    int ret;

    if(x<=0 or x>=X+1 or y<=0 or y>=Y+1 or z<=0 or z>=Z+1){
        return 0;
    }

    if(Q == 0){
        return -1;
    }

    if(arr[x][y][z] == 0){
        Q--;
        cout<<"? "<<x<<" "<<y<<" "<<z<<endl;
        cin>>ret;
        arr[x][y][z] = ret;
    }
    else{
        ret = arr[x][y][z];
    }

    return ret;

}

bool isMax(int x, int y, int z){
    bool ret = 1;
    FOR(i, -1, 1, 2){
        FOR(j, -1, 1, 2){
            if( query(x, y, z) < query(x+i, y+j, z) ){
                ret = 0;
            }
        }
    }
    return ret;
}

pii solve(int z){

    int xl = 1, xr = X, xmid;
    int yl = 1, yr = Y, ymid;

    while(xl + 1 < xr and yl + 1 < yr){

        xmid = (xl + xr) / 2;
        ymid = (yl + yr) / 2;

        int xlyl = query(xmid, ymid, 1);
        int xlyr = query(xmid, ymid+1, 1);
        int xryl = query(xmid+1, ymid, 1);
        int xryr = query(xmid+1, ymid+1, 1);

        int Max = max({xlyl, xlyr, xryl, xryr});

        if(xlyl == Max){
            xr = xmid;
            yr = ymid;
        }
        else if(xlyr == Max){
            xr = xmid;
            yl = ymid + 1;
        }
        else if(xryl == Max){
            xl = xmid + 1;
            yr = ymid;
        }
        else{
            xl = xmid + 1;
            yl = ymid + 1;
        }

    }

    FOR(i, xl, xr, 1){
        FOR(j, yl, yr, 1){
            if( isMax(i, j, z) ){
                return mkp(i, j);
            }
        }
    }

    return mkp(-1, -1);

}

signed main(){

    //ios_base::sync_with_stdio(false);
    //cin.tie(0);
    //cout.tie(0);

    cin>>X>>Y>>Z>>Q;

    arr.resize(X + 1);
    for(auto& i : arr){
        i.resize(Y + 1);
        for(auto& j : i){
            j.resize(Z + 1);
        }
    }

    pii res = solve(1);

    cout<<"! "<<res.F<<" "<<res.S<<" 1"<<endl;

    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