Submission #986166

#	Time	Username	Problem	Language	Result	Execution time	Memory
986166		ByeWorld	Worm Worries (BOI18_worm)	C++14	0 / 100	1 ms	440 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=-1, ansy, ansz;
map <ipii, int> ma;

int que(int a, int b, int c){
	if(a<=0 || a>n || b<=0 || b>m || c<=0 || c>k) return -1;
	if(ma.find(ipii(pii(a, b), c)) != ma.end()) return ma[ipii(pii(a, b), c)];
	if(all == q) assert(false);
	cout << "? " << a << ' ' << b << ' ' << c << endl;
	all++;
	int x; cin >> x; 
	ma[ipii(pii(a, b), c)] = x;
	return x;
}

signed main(){
	cin >> n >> m >> k >> q; 
	int len = n;
	int l=1, r=n, mid1=l+len*3819/10000, mid2=r-len*3819/10000;
	int le = que(mid1, 1, 1), ri = que(mid2, 1, 1);
	while(r-l+1 >= 10){
		if(le < ri){
			l = mid1;
			mid1 = mid2;
			le = ri; 

			len = r-l+1;
			mid2 = r-len*3819/10000;
			ri = que(mid2, 1, 1);
		} else {
			r = mid2;
			mid2 = mid1;
			ri = le; 

			len = r-l+1;
			mid1 = l+len*3819/10000;
			le = que(mid1, 1, 1);
		}
	}
	int ans = -1;
	for(int i=l-1; i<=r+1; i++){
		if(que(i, 1, 1) > max(que(i-1, 1, 1), que(i+1, 1, 1))){
			ans = i; break;
		}
	}
	assert(ans != -1);
	cout << "! " << ans << " 1 1" << 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