oj.uz

Submission #978214

# Submission time Handle Problem Language Result Execution time Memory
978214 2024-05-09T03:47:22 Z model_code Spy 3 (JOI24_spy3) C++17
100 / 100
 125 ms 6760 KB 
#include "Aoi.h"
#include <bits/stdc++.h>
using namespace std;

namespace
{
	struct edge
	{
		int to, id;
		long long dist;
		edge(int to, int id, long long dist) : to(to), id(id), dist(dist) {}
	};
	class BigInt
	{
		const long long base = 1ll << 32;
		vector<long long> v;
		void update()
		{
			for (int i = 0; i < v.size(); i++)
			{
				long long r = v[i] / base;
				if (r == 0)
					continue;
				v[i] %= base;
				if (i == v.size() - 1)
				{
					v.push_back(r);
				}
				else
				{
					v[i + 1] += r;
				}
			}
		}

	public:
		BigInt &operator+=(const long long t)
		{
			if (v.empty())
			{
				v.push_back(t);
			}
			else
			{
				v.front() += t;
			}
			update();
			return *this;
		}
		BigInt &operator*=(const long long t)
		{
			for (int i = 0; i < v.size(); i++)
			{
				v[i] *= t;
			}
			update();
			return *this;
		}
		BigInt &operator/=(const long long t)
		{
			long long m = 0;
			for (int i = v.size() - 1; i >= 0; i--)
			{
				m *= base;
				v[i] += m;
				m = v[i] % t;
				v[i] /= t;
			}
			return *this;
		}
		long long operator%(const long long t)
		{
			long long m = 0;
			for (int i = v.size() - 1; i >= 0; i--)
			{
				m *= base;
				m += v[i];
				m %= t;
			}
			return m;
		}
		string encode(int d)
		{
			string t;
			for (int i = 0; i < d; i++)
			{
				int k = i / 32;
				if (k >= v.size())
				{
					t += '0';
				}
				else
				{
					int m = i % 32;
					t += '0' + ((v[k] >> m) & 1);
				}
			}
			return t;
		}
	};
} // namespace

string aoi(int N, int M, int Q, int K, vector<int> A, vector<int> B,
		   vector<long long> C, vector<int> T, vector<int> X)
{
	vector<vector<edge>> edges(N);
	for (int i = 0; i < M; i++)
	{
		edges[A[i]].emplace_back(B[i], i, C[i]);
		edges[B[i]].emplace_back(A[i], i, C[i]);
	}
	vector<long long> dist(N, -1);
	priority_queue<pair<long long, int>, vector<pair<long long, int>>,
				   greater<pair<long long, int>>>
		pq;
	pq.push({0, 0});
	while (!pq.empty())
	{
		int x = pq.top().second;
		long long d = pq.top().first;
		pq.pop();
		if (dist[x] != -1)
		{
			continue;
		}
		dist[x] = d;
		for (edge e : edges[x])
		{
			pq.push({d + e.dist, e.to});
		}
	}
	vector<int> map_edges(M, -1);
	for (int i = 0; i < K; i++)
	{
		map_edges[X[i]] = i;
	}
	vector<int> first_query_num(K, Q); // ãã‚Œãžã‚Œã®éš ã•ã‚Œã¦ã„ã‚‹è¾ºã«ã¤ã„ã¦ï¼Œãã®è¾ºã‚’é€šéŽã™ã‚‹æœ€åˆã®ã‚¯ã‚¨ãƒªç•ªå·
	vector<int> last_edge_num(Q, K);   // ãã‚Œãžã‚Œã®ã‚¯ã‚¨ãƒªã«ã¤ã„ã¦ï¼Œãã‚Œä»¥å‰ã®ã‚¯ã‚¨ãƒªã§é€šã£ãŸè¾ºã®ã†ã¡æœ€ã‚‚æœ€å¾Œã«é€šã‚‹ï¼ˆéš ã•ã‚ŒãŸï¼‰è¾ºã®ç•ªå·
	for (int i = 0; i < Q; i++)
	{
		int p = T[i];
		while (p != 0)
		{
			for (edge e : edges[p])
			{
				if (dist[e.to] + e.dist == dist[p])
				{
					int m_id = map_edges[e.id];
					if (m_id != -1)
					{
						if (last_edge_num[i] == K &&
							first_query_num[m_id] != Q)
						{
							last_edge_num[i] = m_id;
						}
						if (first_query_num[m_id] == Q)
						{
							first_query_num[m_id] = i;
						}
					}
					p = e.to;
					break;
				}
			}
		}
	}
	string s;
	BigInt bi;
	for (int i = 0; i < K; i++)
	{
		bi *= Q + 1;
		bi += first_query_num[i];
	}
	for (int i = 1; i < Q; i++)
	{
		bi *= K + 1;
		bi += last_edge_num[i];
	}
	return bi.encode(1350);
}
#include "Bitaro.h"
#include <bits/stdc++.h>
using namespace std;

namespace
{
	struct edge
	{
		int to, id;
		long long dist;
		edge(int to, int id, long long dist) : to(to), id(id), dist(dist) {}
	};
	class BigInt
	{
		const long long base = 1ll << 32;
		vector<long long> v;
		void update()
		{
			for (int i = 0; i < v.size(); i++)
			{
				long long r = v[i] / base;
				if (r == 0)
					continue;
				v[i] %= base;
				if (i == v.size() - 1)
				{
					v.push_back(r);
				}
				else
				{
					v[i + 1] += r;
				}
			}
		}

	public:
		BigInt &operator+=(const long long t)
		{
			if (v.empty())
			{
				v.push_back(t);
			}
			else
			{
				v.front() += t;
			}
			update();
			return *this;
		}
		BigInt &operator*=(const long long t)
		{
			for (int i = 0; i < v.size(); i++)
			{
				v[i] *= t;
			}
			update();
			return *this;
		}
		BigInt &operator/=(const long long t)
		{
			long long m = 0;
			for (int i = v.size() - 1; i >= 0; i--)
			{
				m *= base;
				v[i] += m;
				m = v[i] % t;
				v[i] /= t;
			}
			return *this;
		}
		long long operator%(const long long t)
		{
			long long m = 0;
			for (int i = v.size() - 1; i >= 0; i--)
			{
				m *= base;
				m += v[i];
				m %= t;
			}
			return m;
		}
		string encode(int d)
		{
			string t;
			for (int i = 0; i < d; i++)
			{
				int k = i / 32;
				if (k >= v.size())
				{
					t += '0';
				}
				else
				{
					int m = i % 32;
					t += '0' + ((v[k] >> m) & 1);
				}
			}
			return t;
		}
	};
	BigInt decode(string s, int d)
	{
		BigInt bi;
		for (int i = d - 1; i >= 0; i--)
		{
			bi *= 2;
			if (s[i] == '1')
			{
				bi += 1;
			}
		}
		return bi;
	}
} // namespace

void bitaro(int N, int M, int Q, int K, vector<int> A, vector<int> B,
			vector<long long> C, vector<int> T, vector<int> X, string s)
{
	BigInt bi = decode(s, 1350);
	vector<int> first_query_num(K, Q);
	vector<int> last_edge_num(Q, K);
	for (int i = Q - 1; i >= 1; i--)
	{
		last_edge_num[i] = bi % (K + 1);
		bi /= K + 1;
	}
	for (int i = K - 1; i >= 0; i--)
	{
		first_query_num[i] = bi % (Q + 1);
		bi /= Q + 1;
	}
	vector<vector<int>> answers(Q);
	for (int i = 0; i < Q; i++)
	{
		vector<vector<edge>> edges(N);
		for (int j = 0; j < K; j++)
		{
			if (first_query_num[j] == i)
			{
				C[X[j]] = 1;
			}
			else
			{
				C[X[j]] = 20'000'000'000'000'000;
			}
		}
		for (int j = 0; j < M; j++)
		{
			edges[A[j]].emplace_back(B[j], j, C[j]);
			edges[B[j]].emplace_back(A[j], j, C[j]);
		}
		vector<long long> dist(N, -1);
		priority_queue<pair<long long, int>, vector<pair<long long, int>>,
					   greater<pair<long long, int>>>
			pq;
		int start = 0;
		if (last_edge_num[i] != K)
		{
			int q = first_query_num[last_edge_num[i]];
			for (int j = 0;; j++)
			{
				answers[i].push_back(answers[q][j]);
				start ^= A[answers[q][j]] ^ B[answers[q][j]];
				if (answers[q][j] == X[last_edge_num[i]])
				{
					break;
				}
			}
		}
		pq.emplace(0, start);
		while (!pq.empty())
		{
			int x = pq.top().second;
			long long d = pq.top().first;
			pq.pop();
			if (dist[x] != -1)
			{
				continue;
			}
			dist[x] = d;
			for (edge e : edges[x])
			{
				pq.emplace(d + e.dist, e.to);
			}
		}
		int p = T[i];
		vector<int> v;
		while (p != start)
		{
			for (edge e : edges[p])
			{
				if (dist[e.to] + e.dist == dist[p])
				{
					v.push_back(e.id);
					p = e.to;
					break;
				}
			}
		}
		reverse(v.begin(), v.end());
		for (int t : v)
		{
			answers[i].push_back(t);
		}
		answer(answers[i]);
	}
}

Compilation message

Aoi.cpp: In member function 'void {anonymous}::BigInt::update()':
Aoi.cpp:19:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |    for (int i = 0; i < v.size(); i++)
      |                    ~~^~~~~~~~~~
Aoi.cpp:25:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |     if (i == v.size() - 1)
      |         ~~^~~~~~~~~~~~~~~
Aoi.cpp: In member function '{anonymous}::BigInt& {anonymous}::BigInt::operator*=(long long int)':
Aoi.cpp:52:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |    for (int i = 0; i < v.size(); i++)
      |                    ~~^~~~~~~~~~
Aoi.cpp: In member function 'std::string {anonymous}::BigInt::encode(int)':
Aoi.cpp:88:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |     if (k >= v.size())
      |         ~~^~~~~~~~~~~

Bitaro.cpp: In member function 'void {anonymous}::BigInt::update()':
Bitaro.cpp:19:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |    for (int i = 0; i < v.size(); i++)
      |                    ~~^~~~~~~~~~
Bitaro.cpp:25:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   25 |     if (i == v.size() - 1)
      |         ~~^~~~~~~~~~~~~~~
Bitaro.cpp: In member function '{anonymous}::BigInt& {anonymous}::BigInt::operator*=(long long int)':
Bitaro.cpp:52:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   52 |    for (int i = 0; i < v.size(); i++)
      |                    ~~^~~~~~~~~~
Bitaro.cpp: In member function 'std::string {anonymous}::BigInt::encode(int)':
Bitaro.cpp:88:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   88 |     if (k >= v.size())
      |         ~~^~~~~~~~~~~

Subtask #1
100.0 / 100.0

# Verdict Execution time Memory Grader output
1 Correct 102 ms 6760 KB Output is correct
2 Correct 1 ms 1028 KB Output is correct
3 Correct 95 ms 4664 KB Output is correct
4 Correct 77 ms 5116 KB Output is correct
5 Correct 103 ms 4928 KB Output is correct
6 Correct 94 ms 4632 KB Output is correct
7 Correct 98 ms 4676 KB Output is correct
8 Correct 92 ms 4688 KB Output is correct
9 Correct 78 ms 4916 KB Output is correct
10 Correct 33 ms 4552 KB Output is correct
11 Correct 105 ms 4668 KB Output is correct
12 Correct 83 ms 4696 KB Output is correct
13 Correct 89 ms 4636 KB Output is correct
14 Correct 105 ms 4636 KB Output is correct
15 Correct 76 ms 4836 KB Output is correct
16 Correct 16 ms 4376 KB Output is correct
17 Correct 84 ms 4972 KB Output is correct
18 Correct 87 ms 4980 KB Output is correct
19 Correct 110 ms 6436 KB Output is correct
20 Correct 97 ms 6312 KB Output is correct
21 Correct 105 ms 6144 KB Output is correct
22 Correct 106 ms 6092 KB Output is correct
23 Correct 71 ms 6196 KB Output is correct
24 Correct 100 ms 6048 KB Output is correct
25 Correct 112 ms 6048 KB Output is correct
26 Correct 93 ms 5804 KB Output is correct
27 Correct 1 ms 784 KB Output is correct
28 Correct 94 ms 4940 KB Output is correct
29 Correct 55 ms 3572 KB Output is correct
30 Correct 91 ms 5304 KB Output is correct
31 Correct 45 ms 4916 KB Output is correct
32 Correct 99 ms 4996 KB Output is correct
33 Correct 94 ms 4808 KB Output is correct
34 Correct 99 ms 5248 KB Output is correct
35 Correct 94 ms 5104 KB Output is correct
36 Correct 102 ms 5028 KB Output is correct
37 Correct 17 ms 3128 KB Output is correct
38 Correct 40 ms 3968 KB Output is correct
39 Correct 46 ms 3868 KB Output is correct
40 Correct 10 ms 3356 KB Output is correct
41 Correct 125 ms 6432 KB Output is correct
42 Correct 66 ms 6404 KB Output is correct
43 Correct 112 ms 6508 KB Output is correct
44 Correct 22 ms 6060 KB Output is correct
45 Correct 22 ms 3068 KB Output is correct
46 Correct 34 ms 3496 KB Output is correct
47 Correct 37 ms 3600 KB Output is correct
48 Correct 0 ms 776 KB Output is correct
49 Correct 1 ms 776 KB Output is correct
50 Correct 55 ms 6720 KB Output is correct
51 Correct 6 ms 1296 KB Output is correct
52 Correct 1 ms 776 KB Output is correct
53 Correct 95 ms 6712 KB Output is correct
54 Correct 52 ms 4388 KB Output is correct
55 Correct 73 ms 4284 KB Output is correct
56 Correct 73 ms 6328 KB Output is correct
57 Correct 109 ms 6320 KB Output is correct
58 Correct 94 ms 4748 KB Output is correct
59 Correct 124 ms 6340 KB Output is correct
60 Correct 114 ms 5776 KB Output is correct
61 Correct 115 ms 6260 KB Output is correct
62 Correct 108 ms 5484 KB Output is correct
63 Correct 121 ms 6412 KB Output is correct
64 Correct 20 ms 4792 KB Output is correct
65 Correct 47 ms 3828 KB Output is correct
66 Correct 52 ms 6260 KB Output is correct
67 Correct 53 ms 3788 KB Output is correct
68 Correct 54 ms 6376 KB Output is correct
69 Correct 0 ms 776 KB Output is correct
70 Correct 0 ms 776 KB Output is correct
71 Correct 2 ms 776 KB Output is correct
72 Correct 26 ms 2872 KB Output is correct
73 Correct 56 ms 3352 KB Output is correct
74 Correct 56 ms 3344 KB Output is correct
75 Correct 11 ms 3316 KB Output is correct
76 Correct 0 ms 784 KB Output is correct
77 Correct 104 ms 5456 KB Output is correct
78 Correct 97 ms 5044 KB Output is correct
79 Correct 89 ms 5100 KB Output is correct
80 Correct 0 ms 776 KB Output is correct
81 Correct 103 ms 4584 KB Output is correct
82 Correct 97 ms 4644 KB Output is correct
83 Correct 93 ms 4568 KB Output is correct