Submission #1005916

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1005916	2024-06-23T07:52:40 Z	Trisanu_Das	Fire (BOI24_fire)	C++17	100 / 100	140 ms	44144 KB

Main

#include <bits/stdc++.h>
using namespace std;
const int LOG = 20;
 
int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int N, M; cin >> N >> M;
	vector<vector<pair<int, int>>> binlift(LOG, vector<pair<int, int>>(N));
	vector<pair<int, int>> inv(N);
	vector<int> s(N), e(N);
	for(int i = 0; i < N; i++){
		cin >> s[i] >> e[i];
		if(s[i] > e[i]) e[i] += M;
		inv[i] = {s[i], i};
	}
	sort(inv.begin(), inv.end());
	set<pair<int, int>> ending;
	for(auto [l, i] : inv){
		while(!ending.empty() && (*ending.begin()).first < l){
			binlift[0][(*ending.begin()).second] = *ending.rbegin();
			ending.erase(ending.begin());
		}
		ending.insert({e[i], i});
	}
	while(!ending.empty()){
		binlift[0][(*ending.begin()).second] = *ending.rbegin();
		ending.erase(ending.begin());
	}
	for(int k = 1; k < LOG; k++)
		for(int i = 0; i < N; i++)
			binlift[k][i] = binlift[k-1][binlift[k-1][i].second];
	int ans = 1e9;
	for(int i = 0; i < N; i++){
		int curr = i;
		int currAns = 0;
		for(int k = LOG - 1; k >= 0; k--){
			if(binlift[k][curr].first >= M && binlift[k][curr].first - M >= s[i])
              ans = min(ans, currAns + (1 << k));
			else{
				currAns += (1 << k);
				curr = binlift[k][curr].second;
			}
		}
	}
	cout << (ans == 1e9 ? -1 : ans + 1) << "\n";
}

Subtask #1
14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	344 KB	Output is correct
23	Correct	0 ms	344 KB	Output is correct

Subtask #2
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	344 KB	Output is correct
23	Correct	0 ms	344 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	0 ms	344 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	0 ms	348 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	0 ms	348 KB	Output is correct
33	Correct	0 ms	348 KB	Output is correct
34	Correct	1 ms	348 KB	Output is correct
35	Correct	1 ms	348 KB	Output is correct
36	Correct	0 ms	492 KB	Output is correct
37	Correct	0 ms	348 KB	Output is correct
38	Correct	0 ms	348 KB	Output is correct

Subtask #3
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	344 KB	Output is correct
23	Correct	0 ms	344 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	0 ms	344 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	0 ms	348 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	0 ms	348 KB	Output is correct
33	Correct	0 ms	348 KB	Output is correct
34	Correct	1 ms	348 KB	Output is correct
35	Correct	1 ms	348 KB	Output is correct
36	Correct	0 ms	492 KB	Output is correct
37	Correct	0 ms	348 KB	Output is correct
38	Correct	0 ms	348 KB	Output is correct
39	Correct	3 ms	1116 KB	Output is correct
40	Correct	2 ms	1116 KB	Output is correct
41	Correct	2 ms	1116 KB	Output is correct
42	Correct	2 ms	1116 KB	Output is correct
43	Correct	2 ms	1316 KB	Output is correct
44	Correct	2 ms	1116 KB	Output is correct
45	Correct	2 ms	1112 KB	Output is correct
46	Correct	2 ms	1112 KB	Output is correct
47	Correct	2 ms	1116 KB	Output is correct
48	Correct	3 ms	1116 KB	Output is correct
49	Correct	3 ms	1116 KB	Output is correct
50	Correct	2 ms	1116 KB	Output is correct

Subtask #4
13.0 / 13.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	344 KB	Output is correct
8	Correct	0 ms	388 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	512 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	344 KB	Output is correct
15	Correct	2 ms	1116 KB	Output is correct
16	Correct	2 ms	1116 KB	Output is correct
17	Correct	2 ms	1116 KB	Output is correct
18	Correct	2 ms	1116 KB	Output is correct
19	Correct	2 ms	1320 KB	Output is correct
20	Correct	89 ms	44132 KB	Output is correct
21	Correct	114 ms	38748 KB	Output is correct
22	Correct	95 ms	38604 KB	Output is correct
23	Correct	77 ms	37828 KB	Output is correct
24	Correct	92 ms	38672 KB	Output is correct
25	Correct	140 ms	40044 KB	Output is correct
26	Correct	86 ms	38624 KB	Output is correct
27	Correct	92 ms	38612 KB	Output is correct
28	Correct	79 ms	38608 KB	Output is correct

Subtask #5
21.0 / 21.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	2 ms	1116 KB	Output is correct
13	Correct	2 ms	1116 KB	Output is correct
14	Correct	2 ms	1116 KB	Output is correct
15	Correct	90 ms	44144 KB	Output is correct
16	Correct	82 ms	37592 KB	Output is correct
17	Correct	97 ms	38612 KB	Output is correct
18	Correct	90 ms	39732 KB	Output is correct
19	Correct	81 ms	38708 KB	Output is correct
20	Correct	84 ms	37732 KB	Output is correct

Subtask #6
26.0 / 26.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	0 ms	348 KB	Output is correct
19	Correct	0 ms	344 KB	Output is correct
20	Correct	0 ms	348 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	344 KB	Output is correct
23	Correct	0 ms	344 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	1 ms	348 KB	Output is correct
27	Correct	0 ms	348 KB	Output is correct
28	Correct	0 ms	344 KB	Output is correct
29	Correct	1 ms	348 KB	Output is correct
30	Correct	0 ms	348 KB	Output is correct
31	Correct	1 ms	348 KB	Output is correct
32	Correct	0 ms	348 KB	Output is correct
33	Correct	0 ms	348 KB	Output is correct
34	Correct	1 ms	348 KB	Output is correct
35	Correct	1 ms	348 KB	Output is correct
36	Correct	0 ms	492 KB	Output is correct
37	Correct	0 ms	348 KB	Output is correct
38	Correct	0 ms	348 KB	Output is correct
39	Correct	3 ms	1116 KB	Output is correct
40	Correct	2 ms	1116 KB	Output is correct
41	Correct	2 ms	1116 KB	Output is correct
42	Correct	2 ms	1116 KB	Output is correct
43	Correct	2 ms	1316 KB	Output is correct
44	Correct	2 ms	1116 KB	Output is correct
45	Correct	2 ms	1112 KB	Output is correct
46	Correct	2 ms	1112 KB	Output is correct
47	Correct	2 ms	1116 KB	Output is correct
48	Correct	3 ms	1116 KB	Output is correct
49	Correct	3 ms	1116 KB	Output is correct
50	Correct	2 ms	1116 KB	Output is correct
51	Correct	0 ms	348 KB	Output is correct
52	Correct	0 ms	348 KB	Output is correct
53	Correct	0 ms	348 KB	Output is correct
54	Correct	0 ms	348 KB	Output is correct
55	Correct	0 ms	348 KB	Output is correct
56	Correct	0 ms	348 KB	Output is correct
57	Correct	0 ms	344 KB	Output is correct
58	Correct	0 ms	388 KB	Output is correct
59	Correct	0 ms	348 KB	Output is correct
60	Correct	0 ms	348 KB	Output is correct
61	Correct	0 ms	512 KB	Output is correct
62	Correct	0 ms	348 KB	Output is correct
63	Correct	0 ms	348 KB	Output is correct
64	Correct	0 ms	344 KB	Output is correct
65	Correct	2 ms	1116 KB	Output is correct
66	Correct	2 ms	1116 KB	Output is correct
67	Correct	2 ms	1116 KB	Output is correct
68	Correct	2 ms	1116 KB	Output is correct
69	Correct	2 ms	1320 KB	Output is correct
70	Correct	89 ms	44132 KB	Output is correct
71	Correct	114 ms	38748 KB	Output is correct
72	Correct	95 ms	38604 KB	Output is correct
73	Correct	77 ms	37828 KB	Output is correct
74	Correct	92 ms	38672 KB	Output is correct
75	Correct	140 ms	40044 KB	Output is correct
76	Correct	86 ms	38624 KB	Output is correct
77	Correct	92 ms	38612 KB	Output is correct
78	Correct	79 ms	38608 KB	Output is correct
79	Correct	0 ms	348 KB	Output is correct
80	Correct	0 ms	348 KB	Output is correct
81	Correct	0 ms	348 KB	Output is correct
82	Correct	0 ms	348 KB	Output is correct
83	Correct	0 ms	348 KB	Output is correct
84	Correct	0 ms	348 KB	Output is correct
85	Correct	0 ms	348 KB	Output is correct
86	Correct	1 ms	348 KB	Output is correct
87	Correct	0 ms	348 KB	Output is correct
88	Correct	0 ms	348 KB	Output is correct
89	Correct	0 ms	348 KB	Output is correct
90	Correct	2 ms	1116 KB	Output is correct
91	Correct	2 ms	1116 KB	Output is correct
92	Correct	2 ms	1116 KB	Output is correct
93	Correct	90 ms	44144 KB	Output is correct
94	Correct	82 ms	37592 KB	Output is correct
95	Correct	97 ms	38612 KB	Output is correct
96	Correct	90 ms	39732 KB	Output is correct
97	Correct	81 ms	38708 KB	Output is correct
98	Correct	84 ms	37732 KB	Output is correct
99	Correct	93 ms	38624 KB	Output is correct
100	Correct	90 ms	38720 KB	Output is correct
101	Correct	80 ms	38756 KB	Output is correct
102	Correct	86 ms	38752 KB	Output is correct
103	Correct	84 ms	38708 KB	Output is correct
104	Correct	92 ms	38712 KB	Output is correct
105	Correct	89 ms	37432 KB	Output is correct

Submission #1005916

Compilation message

Subtask #1 14.0 / 14.0

Subtask #2 17.0 / 17.0

Subtask #3 9.0 / 9.0

Subtask #4 13.0 / 13.0

Subtask #5 21.0 / 21.0

Subtask #6 26.0 / 26.0

Subtask #1
14.0 / 14.0

Subtask #2
17.0 / 17.0

Subtask #3
9.0 / 9.0

Subtask #4
13.0 / 13.0

Subtask #5
21.0 / 21.0

Subtask #6
26.0 / 26.0