Submission #440861

#	Time	Username	Problem	Language	Result	Execution time	Memory
440861		Haruto810198	Worm Worries (BOI18_worm)	C++17	10 / 100	457 ms	992576 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 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(arr[x][y][z] == 0){
        cout<<"? "<<x<<" "<<y<<" "<<z<<endl;
        cin>>ret;
        arr[x][y][z] = ret;
    }
    else{
        ret = arr[x][y][z];
    }

    return ret;

}

int solve_1D(int y, int z){

    int xl = 0, xr = X+1, xm1, xm2;

    while(xl + 3 <= xr){

        xm1 = (xl + xl + xr) / 3;
        xm2 = (xl + xr + xr) / 3;

        int vl = query(xl, y, z);
        int vm1 = query(xm1, y, z);
        int vm2 = query(xm2, y, z);
        int vr = query(xr, y, z);

        if(max(vl, vm1) >= max(vm2, vr)){
            xr = xm2;
        }
        else{
            xl = xm1;
        }

    }

    FOR(i, xl, xr, 1){
        if( query(i-1, y, z) <= query(i, y, z) and query(i, y, z) >= query(i+1, y, z) ){
            return i;
        }
    }

    return -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);
        }
    }

    int res = solve_1D(1, 1);

    cout<<"! "<<res<<" 1 1"<<endl;

    return 0;

}

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