Submission #985835

#	Time	Username	Problem	Language	Result	Execution time	Memory
985835		ByeWorld	Worm Worries (BOI18_worm)	C++14	0 / 100	775 ms	344 KiB

worm

#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define fi first
#define se second
#define lf (id<<1)
#define rg ((id<<1)|1)
#define md ((l+r)>>1)
#define ld long double
using namespace std;
typedef pair<int,int> pii;
typedef pair<pii,int> ipii;

vector <int> vx = {1, -1, 0, 0, 0, 0};
vector <int> vy = {0, 0, 1, -1, 0, 0};
vector <int> vz = {0, 0, 0, 0, 1, -1};

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int all, n, m, k, q;
int ansx, ansy, ansz;

int que(int a, int b, int c){
	if(a<=0 || a>n || b<=0 || b>m || c<=0 || c>k) return -1;
	cout << "? " << a << ' ' << b << ' ' << c << endl;
	all++;
	int x; cin >> x; return x;
}
int num(int r){
	int x = rng(); x = abs(x);
	x %= r; x++;
	return x;
}
signed main(){
	cin >> n >> m >> k >> q; bool done = 0;
	while(all < q){
		int tot = 0;
		int a = num(n), b = num(m), c = num(k);
		// cout << a << ' ' << b <<  ' ' << c << "abc\n";
		int sta = que(a, b, c), nw = sta;
		while(tot < 20){
			int num = -1, idx = -1, waduh = 0;
			// cout << nw << ' ' << a << ' '<< b << ' ' << c << " nw\n";
			for(int i=0; i<2; i++){
				if(all == q){
					waduh = 1; break;
				}

				int ret = que(a+vx[i], b+vy[i], c+vz[i]);
				if(ret == -1) continue;
				if(nw <= ret){
					idx = i; num = ret;
				}
			}
			if(idx==-1 && !waduh){
				ansx = a; ansy = b; ansz = c; done = 1;
				break;
			} else {
				a += vx[idx]; b += vy[idx]; c += vz[idx];
				nw = num;
				tot++;
			}
		}
		if(done) break;
	}
	cout << "! " << ansx << ' ' << ansy << ' '<< ansz << 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