답안 #950987

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
950987 2024-03-21T03:31:29 Z GrandTiger1729 Toxic Gene (NOI23_toxic) C++17
94.6 / 100
58 ms 1620 KB
#include "toxic.h"
#include <bits/stdc++.h>
using namespace std;

const int K = 8, T = 30;
vector<int> encode(vector<int> qry)
{
	int n = qry.size();
	vector<int> ret;
	for (int i = 0; i < n; i++)
	{
		for (int j = 0; j < (1 << i); j++)
		{
			ret.push_back(qry[i]);
		}
	}
	return ret;
}
void determine_type(int n)
{
	vector<int> ord(n);
	iota(ord.begin(), ord.end(), 1);
	random_shuffle(ord.begin(), ord.end());
	string ans(n + 1, 'R');
	int cnt = 0;
	int tt = -1;
	vector<int> stk;
	int i = 0;
	while (cnt < T && i < n)
	{
		int j = min(n, i + K);
		int xx = -1;
		{
			vector<int> qry;
			for (int k = i; k < j; k++)
			{
				qry.push_back(ord[k]);
			}
			xx = query_sample(encode(qry));
			if (xx == (1 << qry.size()) - 1)
			{
				stk.insert(stk.end(), qry.begin(), qry.end());
				i = j;
				continue;
			}
		}
		auto make_query = [&](int mid)
		{
			vector<int> qry;
			for (int k = i; k < mid; k++)
			{
				qry.push_back(ord[k]);
			}
			int x = min(stk.size(), K - qry.size());
			for (int k = 0; k < x; k++)
			{
				qry.push_back(stk.end()[-1 - k]);
			}
			return qry;
		};
		int l = i, r = j;
		while (l < r - 1)
		{
			int mid = (l + r) / 2;
			vector<int> qry = make_query(mid);
			int res = query_sample(encode(qry));
			if (res == (1 << qry.size()) - 1)
			{
				l = mid;
			}
			else
			{
				int x = qry.size() - (mid - i);
				for (int k = mid - i; k < qry.size(); k++)
				{
					ans[qry[k]] = (res >> k & 1) ? 'S' : 'R';
				}
				for (int k = 0; k < x; k++)
				{
					stk.pop_back();
				}
				r = mid;
			}
		}
		vector<int> qry = make_query(l);
		for (int k = 0; k < l - i; k++)
		{
			ans[qry[k]] = (xx >> k & 1) ? 'S' : 'R';
		}
		cerr << "ans " << ans << endl;
		ans[ord[l]] = 'T';
		cerr << "OK " << l << ' ' << ord[l] << endl;
		i = l + 1;
		tt = ord[l];
		cnt++;
	}
	while (i < n)
	{
		stk.push_back(ord[i++]);
	}
	cerr << ans << endl;
	for (int j = 0; j < stk.size(); j++)
	{
		cerr << stk[j] << endl;
	}
	cerr << "tt " << tt << endl;
	while (stk.size())
	{
		int x = min((int)stk.size(), K);
		vector<int> qry;
		for (int k = 0; k < x; k++)
		{
			qry.push_back(stk.back());
			stk.pop_back();
		}
		auto tmp = encode(qry);
		tmp.push_back(tt);
		int res = query_sample(tmp);
		for (int k = 0; k < (int)qry.size(); k++)
		{
			ans[qry[k]] = (res >> k & 1) ? 'S' : 'R';
		}
	}
	cerr << ans << endl;
	for (int j = 1; j <= n; j++)
	{
		answer_type(j, ans[j]);
	}
}

Compilation message

toxic.cpp: In function 'void determine_type(int)':
toxic.cpp:74:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |     for (int k = mid - i; k < qry.size(); k++)
      |                           ~~^~~~~~~~~~~~
toxic.cpp:102:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  102 |  for (int j = 0; j < stk.size(); j++)
      |                  ~~^~~~~~~~~~~~
# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 56 ms 1104 KB Output is correct
3 Partially correct 57 ms 852 KB Partially correct
4 Correct 55 ms 1108 KB Output is correct
5 Correct 45 ms 1360 KB Output is correct
6 Correct 45 ms 1456 KB Output is correct
7 Correct 44 ms 1340 KB Output is correct
8 Correct 46 ms 1420 KB Output is correct
9 Partially correct 58 ms 1364 KB Partially correct
10 Correct 57 ms 1480 KB Output is correct
11 Partially correct 46 ms 1360 KB Partially correct
12 Correct 57 ms 1108 KB Output is correct
13 Correct 56 ms 1108 KB Output is correct
14 Partially correct 57 ms 1104 KB Partially correct
15 Correct 50 ms 1620 KB Output is correct
16 Correct 44 ms 1360 KB Output is correct
17 Correct 45 ms 1260 KB Output is correct
18 Partially correct 46 ms 1364 KB Partially correct
19 Partially correct 44 ms 1372 KB Partially correct
20 Partially correct 45 ms 1424 KB Partially correct
21 Partially correct 47 ms 1364 KB Partially correct
22 Correct 54 ms 980 KB Output is correct
23 Correct 56 ms 968 KB Output is correct
24 Partially correct 55 ms 1108 KB Partially correct
25 Correct 55 ms 1144 KB Output is correct
26 Correct 54 ms 1044 KB Output is correct
27 Correct 58 ms 1108 KB Output is correct
28 Correct 55 ms 1108 KB Output is correct
29 Correct 45 ms 1360 KB Output is correct
30 Correct 45 ms 1436 KB Output is correct
31 Correct 45 ms 1368 KB Output is correct
32 Partially correct 45 ms 1472 KB Partially correct
33 Partially correct 45 ms 1360 KB Partially correct
34 Partially correct 45 ms 1364 KB Partially correct
35 Partially correct 45 ms 1360 KB Partially correct
36 Partially correct 6 ms 348 KB Partially correct