Submission #314171

#	Time	Username	Problem	Language	Result	Execution time	Memory
314171		sofapuden	Worm Worries (BOI18_worm)	C++14	0 / 100	126 ms	256 KiB

worm

#include <bits/stdc++.h>

using namespace std;

int peak[4];
int n, m, k;

void find(int xl, int xr, int yl, int yr, int zl, int zr){
	int midx = (xl+xr)>>1;
	int midy = (yl+yr)>>1;
	int midz = (zl+zr)>>1;
	int cur;
	for(int i = xl; i <= xr; ++i){
		for(int j = -1; j <= 1; ++j){
			for(int ij = -1; ij <= 1; ++ij){
				if(!(midy + j) || midy + j >= m)continue;
				if(!(midz + ij) || midz + ij >= k)continue;
				cout << "? " << i << " " << midy+j << " " << midz + ij << endl;
				cin >> cur;
				if(peak[0] < cur){
					peak[0] = cur;
					peak[1] = i;
					peak[2] = midy+j;
					peak[3] = midz+ij;
				}
			}
		}
	}
	for(int i = yl; i <= yr; ++i){
		for(int j = -1; j <= 1; ++j){
			for(int ij = -1; ij <= 1; ++ij){
				if(!(midx + j) || midx + j >= n)continue;
				if(!(midz + ij) || midz + ij >= k)continue;
				cout << "? " << midx + j << " " << i << " " << midz + ij << endl;
				cin >> cur;
				if(peak[0] < cur){
					peak[0] = cur;
					peak[1] = midx + j;
					peak[2] = i;
					peak[3] = midz + ij;
				}
			}
		}
	}
	for(int i = zl; i <= zr; ++i){
		for(int j = -1; j <= 1; ++j){
			for(int ij = -1; ij <= 1; ++ij){
				if(!(midy + j) || midy + j >= m)continue;
				if(!(midx + ij) || midx + ij >= n)continue;
				cout << "? " << midx+ij << " " << midy+j << " " << i << endl;
				cin >> cur;
				if(peak[0] <= cur){
					peak[0] = cur;
					peak[1] = midx+ij;
					peak[2] = midy+j;
					peak[3] = i;
				}
			}
		}
	}
	if(peak[1] == midx || peak[2] == midy || peak[3] == midz)return;
	if(xr-xl <= 2 || yr-yl <= 2 || zr-zl <= 2)return;
	pair<int,int> xra, yra, zra;
	if(peak[1] < midx)xra = { xl, midx };
	else xra = {midx, xr}; 
	if(peak[2] < midy)yra = { yl, midy };
	else yra = {midy, yr}; 
	if(peak[3] < midz)zra = { zl, midz };
	else zra = {midz, zr}; 
	find(xra.first,xra.second,yra.first,yra.second,zra.first,zra.second);	
}

int main(){
	cin >> n >> m >> k;
	if(k != 1){
		find(1,n,1,m,1,k);
	}
	cout << "! " << peak[1] << " " << peak[2] << " " << peak[3] << endl;
}

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