oj.uz

Submission #1112620

# Submission time Handle Problem Language Result Execution time Memory
1112620 2024-11-14T12:32:29 Z gelastropod Fire (BOI24_fire) C++14
100 / 100
 347 ms 79152 KB 
#include <iostream>
#include <vector>
#include <map>
#include <queue>
#include <climits>
using namespace std;
#define int long long

signed main(signed argc, char *argv[])
{
	int N, M, s, e;
	cin >> N >> M;
	vector<pair<int, int>> sorted;
	priority_queue<pair<int, int>, vector<pair<int, int>>, greater<pair<int, int>>> pq, cpq;
	map<int, int> vals;
	for (int i = 0; i < N; i++)
	{
		cin >> s >> e;
		if (s > e)
			e += M;
		vals[s] = max(vals[s], e);
	}
	map<int, int> endvals;
	while (!vals.empty())
	{
		cpq.push(*vals.begin());
		vals.erase(vals.begin());
	}
	int crntmax = -1;
	while (!cpq.empty())
	{
		if (cpq.top().second > crntmax)
		{
			crntmax = cpq.top().second;
			pq.push(cpq.top());
			sorted.push_back(cpq.top());
			endvals[cpq.top().second] = sorted.size() - 1;
		}
		cpq.pop();
	}
	N = sorted.size();
	vector<vector<int>> parent(31, vector<int>(N, -1));
	auto currvals = pq.top();
	int currmax = pq.top().second;
	int currind = 0;
	pq.pop();
	for (auto i : endvals)
	{
			while (currvals.first <= i.first)
			{
				if (currmax < currvals.second)
				{
					currmax = currvals.second;
					currind = N - pq.size() - 1;
				}
				if (pq.empty())
					currvals.first = LLONG_MAX;
				else
				{
					currvals = pq.top();
					pq.pop();
				}
			}
		if (currind == i.second)
			parent[0][i.second] = -1;
		else
			parent[0][i.second] = currind;
	}
	for (int i = 1; i < 31; i++)
	{
		for (int j = 0; j < N; j++)
		{
			if (parent[i - 1][j] == -1)
				parent[i][j] = -1;
			else
				parent[i][j] = parent[i - 1][parent[i - 1][j]];
		}
	}
	int ans = LLONG_MAX;
	for (int i = 0; i < N; i++)
	{
		int qq = i;
		int b = 0;
		int currans = 0;
		int a = sorted[i].first + M;
		for (int j = 30; j >= 0; j--)
		{
			int abc = parent[j][qq];
			if (abc != -1)
			{
				if (sorted[abc].second >= a)
					currans = b + (1 << j);
				else
					b += 1 << j, qq = abc;
			}
		}
		if (currans != 0)
			ans = min(ans, currans + 1);
	}
	if (ans == LLONG_MAX)
		cout << "-1\n";
	else
		cout << ans << '\n';
}

Subtask #1
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct

Subtask #2
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 2 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 504 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 2 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 1 ms 336 KB Output is correct
38 Correct 1 ms 336 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 2 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 504 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 2 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 1 ms 336 KB Output is correct
38 Correct 1 ms 336 KB Output is correct
39 Correct 5 ms 848 KB Output is correct
40 Correct 6 ms 1872 KB Output is correct
41 Correct 7 ms 2144 KB Output is correct
42 Correct 6 ms 2128 KB Output is correct
43 Correct 4 ms 848 KB Output is correct
44 Correct 7 ms 2128 KB Output is correct
45 Correct 8 ms 2128 KB Output is correct
46 Correct 7 ms 2124 KB Output is correct
47 Correct 6 ms 848 KB Output is correct
48 Correct 5 ms 848 KB Output is correct
49 Correct 5 ms 1360 KB Output is correct
50 Correct 6 ms 2300 KB Output is correct

Subtask #4
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 9 ms 2384 KB Output is correct
16 Correct 6 ms 2128 KB Output is correct
17 Correct 4 ms 848 KB Output is correct
18 Correct 8 ms 2312 KB Output is correct
19 Correct 5 ms 848 KB Output is correct
20 Correct 36 ms 436 KB Output is correct
21 Correct 216 ms 21388 KB Output is correct
22 Correct 205 ms 21372 KB Output is correct
23 Correct 299 ms 78076 KB Output is correct
24 Correct 291 ms 66624 KB Output is correct
25 Correct 165 ms 19900 KB Output is correct
26 Correct 255 ms 46516 KB Output is correct
27 Correct 299 ms 79152 KB Output is correct
28 Correct 208 ms 22960 KB Output is correct

Subtask #5
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 512 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 2 ms 336 KB Output is correct
12 Correct 6 ms 2128 KB Output is correct
13 Correct 7 ms 2164 KB Output is correct
14 Correct 6 ms 2128 KB Output is correct
15 Correct 34 ms 420 KB Output is correct
16 Correct 327 ms 75372 KB Output is correct
17 Correct 337 ms 77548 KB Output is correct
18 Correct 337 ms 75128 KB Output is correct
19 Correct 347 ms 75320 KB Output is correct
20 Correct 314 ms 75304 KB Output is correct

Subtask #6
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 336 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 336 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 1 ms 336 KB Output is correct
22 Correct 1 ms 336 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 2 ms 336 KB Output is correct
27 Correct 1 ms 336 KB Output is correct
28 Correct 1 ms 336 KB Output is correct
29 Correct 1 ms 336 KB Output is correct
30 Correct 1 ms 504 KB Output is correct
31 Correct 1 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 336 KB Output is correct
35 Correct 2 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 1 ms 336 KB Output is correct
38 Correct 1 ms 336 KB Output is correct
39 Correct 5 ms 848 KB Output is correct
40 Correct 6 ms 1872 KB Output is correct
41 Correct 7 ms 2144 KB Output is correct
42 Correct 6 ms 2128 KB Output is correct
43 Correct 4 ms 848 KB Output is correct
44 Correct 7 ms 2128 KB Output is correct
45 Correct 8 ms 2128 KB Output is correct
46 Correct 7 ms 2124 KB Output is correct
47 Correct 6 ms 848 KB Output is correct
48 Correct 5 ms 848 KB Output is correct
49 Correct 5 ms 1360 KB Output is correct
50 Correct 6 ms 2300 KB Output is correct
51 Correct 1 ms 336 KB Output is correct
52 Correct 1 ms 336 KB Output is correct
53 Correct 1 ms 336 KB Output is correct
54 Correct 1 ms 336 KB Output is correct
55 Correct 1 ms 336 KB Output is correct
56 Correct 1 ms 336 KB Output is correct
57 Correct 1 ms 336 KB Output is correct
58 Correct 1 ms 336 KB Output is correct
59 Correct 1 ms 336 KB Output is correct
60 Correct 1 ms 336 KB Output is correct
61 Correct 1 ms 336 KB Output is correct
62 Correct 1 ms 336 KB Output is correct
63 Correct 1 ms 336 KB Output is correct
64 Correct 1 ms 336 KB Output is correct
65 Correct 9 ms 2384 KB Output is correct
66 Correct 6 ms 2128 KB Output is correct
67 Correct 4 ms 848 KB Output is correct
68 Correct 8 ms 2312 KB Output is correct
69 Correct 5 ms 848 KB Output is correct
70 Correct 36 ms 436 KB Output is correct
71 Correct 216 ms 21388 KB Output is correct
72 Correct 205 ms 21372 KB Output is correct
73 Correct 299 ms 78076 KB Output is correct
74 Correct 291 ms 66624 KB Output is correct
75 Correct 165 ms 19900 KB Output is correct
76 Correct 255 ms 46516 KB Output is correct
77 Correct 299 ms 79152 KB Output is correct
78 Correct 208 ms 22960 KB Output is correct
79 Correct 1 ms 336 KB Output is correct
80 Correct 1 ms 336 KB Output is correct
81 Correct 1 ms 336 KB Output is correct
82 Correct 1 ms 336 KB Output is correct
83 Correct 1 ms 336 KB Output is correct
84 Correct 1 ms 336 KB Output is correct
85 Correct 1 ms 336 KB Output is correct
86 Correct 1 ms 512 KB Output is correct
87 Correct 1 ms 336 KB Output is correct
88 Correct 1 ms 336 KB Output is correct
89 Correct 2 ms 336 KB Output is correct
90 Correct 6 ms 2128 KB Output is correct
91 Correct 7 ms 2164 KB Output is correct
92 Correct 6 ms 2128 KB Output is correct
93 Correct 34 ms 420 KB Output is correct
94 Correct 327 ms 75372 KB Output is correct
95 Correct 337 ms 77548 KB Output is correct
96 Correct 337 ms 75128 KB Output is correct
97 Correct 347 ms 75320 KB Output is correct
98 Correct 314 ms 75304 KB Output is correct
99 Correct 256 ms 31420 KB Output is correct
100 Correct 219 ms 22980 KB Output is correct
101 Correct 325 ms 78124 KB Output is correct
102 Correct 341 ms 69644 KB Output is correct
103 Correct 338 ms 79152 KB Output is correct
104 Correct 249 ms 22908 KB Output is correct
105 Correct 224 ms 42568 KB Output is correct