답안 #951007

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
951007 2024-03-21T04:02:15 Z GrandTiger1729 Toxic Gene (NOI23_toxic) C++17
95.95 / 100
50 ms 520 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);
	string ans(n + 1, 'R');
	int cnt = 0;
	int tt = -1;
	vector<int> stk;
	int i = 0;
	while (cnt < T && i < n)
	{
		srand(mt19937(time(0))() + 777771449);
		random_shuffle(ord.begin() + i, ord.end());
		int j = min(n, i + K);
		int xx = -1;
		{
			vector<int> qry;
			for (int k = i; k < j; 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]);
			}
			xx = query_sample(encode(qry));
			if (xx == (1 << qry.size()) - 1)
			{
				stk.insert(stk.end(), qry.begin(), qry.end());
				i = j;
				continue;
			}
			else
			{
				for (int k = j - i; k < qry.size(); k++)
				{
					ans[qry[k]] = (xx >> k & 1) ? 'S' : 'R';
				}
				for (int k = 0; k < x; k++)
				{
					stk.pop_back();
				}
			}
		}
		int l = i, r = j;
		auto make_query = [&](int mid)
		{
			vector<int> qry;
			for (int k = l; 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;
		};
		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 - l);
				for (int k = mid - l; k < qry.size(); k++)
				{
					ans[qry[k]] = (res >> k & 1) ? 'S' : 'R';
				}
				for (int k = 0; k < x; k++)
				{
					stk.pop_back();
				}
				r = mid;
			}
		}
		for (int k = 0; k < l - i; k++)
		{
			ans[ord[i + k]] = (xx >> k & 1) ? 'S' : 'R';
		}
		ans[ord[l]] = 'T';
		i = l + 1;
		tt = ord[l];
		cnt++;
	}
	while (i < n)
	{
		stk.push_back(ord[i++]);
	}
	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';
		}
	}
	for (int j = 1; j <= n; j++)
	{
		answer_type(j, ans[j]);
	}
}

Compilation message

toxic.cpp: In function 'void determine_type(int)':
toxic.cpp:54:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |     for (int k = j - i; k < qry.size(); k++)
      |                         ~~^~~~~~~~~~~~
toxic.cpp:91:29: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   91 |     for (int k = mid - l; k < qry.size(); k++)
      |                           ~~^~~~~~~~~~~~
# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 39 ms 516 KB Output is correct
3 Correct 37 ms 348 KB Output is correct
4 Correct 38 ms 348 KB Output is correct
5 Correct 44 ms 348 KB Output is correct
6 Correct 44 ms 348 KB Output is correct
7 Correct 44 ms 484 KB Output is correct
8 Correct 43 ms 344 KB Output is correct
9 Correct 44 ms 348 KB Output is correct
10 Correct 44 ms 480 KB Output is correct
11 Correct 43 ms 476 KB Output is correct
12 Correct 39 ms 348 KB Output is correct
13 Correct 38 ms 504 KB Output is correct
14 Correct 37 ms 520 KB Output is correct
15 Correct 44 ms 484 KB Output is correct
16 Partially correct 44 ms 344 KB Partially correct
17 Correct 48 ms 348 KB Output is correct
18 Correct 50 ms 488 KB Output is correct
19 Correct 45 ms 348 KB Output is correct
20 Correct 44 ms 504 KB Output is correct
21 Correct 44 ms 344 KB Output is correct
22 Correct 39 ms 348 KB Output is correct
23 Correct 38 ms 504 KB Output is correct
24 Correct 38 ms 348 KB Output is correct
25 Correct 38 ms 348 KB Output is correct
26 Correct 38 ms 516 KB Output is correct
27 Correct 38 ms 516 KB Output is correct
28 Correct 38 ms 348 KB Output is correct
29 Correct 44 ms 348 KB Output is correct
30 Partially correct 43 ms 348 KB Partially correct
31 Correct 43 ms 348 KB Output is correct
32 Correct 43 ms 500 KB Output is correct
33 Correct 44 ms 484 KB Output is correct
34 Correct 46 ms 348 KB Output is correct
35 Partially correct 49 ms 344 KB Partially correct
36 Correct 6 ms 344 KB Output is correct