Submission #1024082

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
1024082	2024-07-15T11:35:45 Z	vjudge1	Osumnjičeni (COCI21_osumnjiceni)	C++17	110 / 110	585 ms	31184 KB

Main

// Time: 15-07-2024 16:33:04
// Problem: E - Osumnjičeni
// Contest: Virtual Judge - COCI 2021 Contest # 2
// URL: https://vjudge.net/contest/640690#problem/E
// Memory Limit: 512 MB
// Time Limit: 1000 ms

#include <bits/stdc++.h>

using namespace std;

bool valid(multiset<pair<int,int>> &se,pair<int,int> p)
{
	auto it=se.insert(p);
	if (it!=se.begin())
	{
		it--;
		if ((*it).second>=p.first)
		{
			se.erase(++it);
			return 0;
		}
		it++;
	}
	it++;
	if (it!=se.end())
	{
		if ((*it).first<=p.second)
		{
			se.erase(--it);
			return 0;
		}
	}
	return 1;
}

int main()
{
	int n;
	cin>>n;
	vector<pair<int,int>> vec;
	for (int i=0;i<n;i++)
	{
		int l,r;
		cin>>l>>r;
		vec.push_back({l,r});
	}
	multiset<pair<int,int>> se;
	int i=0,j=0;
	int rc[n+1][18];
	while (i<n)
	{
		if (j<n)
		{
			while (j<n && valid(se,vec[j]))
				j++;
		}
		rc[i][0]=j;
		se.erase(se.find(vec[i]));
		i++;
	}
	for (int i=0;i<18;i++)
		rc[n][i]=n;
	for (int p=1;p<18;p++)
		for (int i=0;i<n;i++)
			rc[i][p]=rc[rc[i][p-1]][p-1];
	int q;
	cin>>q;
	while (q--)
	{
		int a,b;
		cin>>a>>b;
		a--,b--;
		int ans=1;
		for (int p=17;p>=0;p--)
			if (rc[a][p]<=b)
				ans+=(1<<p),a=rc[a][p];
		cout<<ans<<'\n';
	}
	
	return 0;
}

Subtask #1

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	118 ms	15276 KB	Output is correct
2	Correct	118 ms	18836 KB	Output is correct
3	Correct	123 ms	18872 KB	Output is correct
4	Correct	131 ms	19128 KB	Output is correct
5	Correct	125 ms	19800 KB	Output is correct
6	Correct	110 ms	18112 KB	Output is correct
7	Correct	117 ms	18364 KB	Output is correct
8	Correct	118 ms	18416 KB	Output is correct
9	Correct	127 ms	18872 KB	Output is correct
10	Correct	116 ms	18368 KB	Output is correct
11	Correct	194 ms	28092 KB	Output is correct
12	Correct	193 ms	26304 KB	Output is correct
13	Correct	203 ms	26112 KB	Output is correct
14	Correct	191 ms	23996 KB	Output is correct
15	Correct	185 ms	22336 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	130 ms	19308 KB	Output is correct

Subtask #2

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	10 ms	856 KB	Output is correct
2	Correct	14 ms	1008 KB	Output is correct
3	Correct	11 ms	860 KB	Output is correct
4	Correct	11 ms	1024 KB	Output is correct
5	Correct	10 ms	992 KB	Output is correct
6	Correct	15 ms	1220 KB	Output is correct
7	Correct	11 ms	832 KB	Output is correct
8	Correct	13 ms	856 KB	Output is correct
9	Correct	11 ms	856 KB	Output is correct
10	Correct	10 ms	860 KB	Output is correct
11	Correct	10 ms	956 KB	Output is correct
12	Correct	10 ms	1128 KB	Output is correct
13	Correct	10 ms	1008 KB	Output is correct
14	Correct	10 ms	1036 KB	Output is correct
15	Correct	10 ms	1012 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	10 ms	1008 KB	Output is correct

Subtask #3

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	10 ms	856 KB	Output is correct
2	Correct	14 ms	1008 KB	Output is correct
3	Correct	11 ms	860 KB	Output is correct
4	Correct	11 ms	1024 KB	Output is correct
5	Correct	10 ms	992 KB	Output is correct
6	Correct	15 ms	1220 KB	Output is correct
7	Correct	11 ms	832 KB	Output is correct
8	Correct	13 ms	856 KB	Output is correct
9	Correct	11 ms	856 KB	Output is correct
10	Correct	10 ms	860 KB	Output is correct
11	Correct	10 ms	956 KB	Output is correct
12	Correct	10 ms	1128 KB	Output is correct
13	Correct	10 ms	1008 KB	Output is correct
14	Correct	10 ms	1036 KB	Output is correct
15	Correct	10 ms	1012 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	10 ms	1008 KB	Output is correct
18	Correct	347 ms	3668 KB	Output is correct
19	Correct	263 ms	3408 KB	Output is correct
20	Correct	300 ms	3548 KB	Output is correct
21	Correct	265 ms	3408 KB	Output is correct
22	Correct	289 ms	3408 KB	Output is correct
23	Correct	290 ms	3352 KB	Output is correct
24	Correct	291 ms	3512 KB	Output is correct
25	Correct	297 ms	3408 KB	Output is correct
26	Correct	285 ms	3480 KB	Output is correct
27	Correct	279 ms	3248 KB	Output is correct
28	Correct	276 ms	3156 KB	Output is correct
29	Correct	279 ms	3236 KB	Output is correct
30	Correct	290 ms	3152 KB	Output is correct
31	Correct	273 ms	2900 KB	Output is correct
32	Correct	266 ms	2896 KB	Output is correct
33	Correct	0 ms	348 KB	Output is correct
34	Correct	271 ms	3176 KB	Output is correct

Subtask #4

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	149 ms	16064 KB	Output is correct
2	Correct	128 ms	19616 KB	Output is correct
3	Correct	119 ms	18148 KB	Output is correct
4	Correct	117 ms	18108 KB	Output is correct
5	Correct	120 ms	18628 KB	Output is correct
6	Correct	117 ms	18364 KB	Output is correct
7	Correct	132 ms	18108 KB	Output is correct
8	Correct	125 ms	18328 KB	Output is correct
9	Correct	153 ms	18200 KB	Output is correct
10	Correct	134 ms	19468 KB	Output is correct
11	Correct	285 ms	26044 KB	Output is correct
12	Correct	297 ms	28664 KB	Output is correct
13	Correct	220 ms	25920 KB	Output is correct
14	Correct	199 ms	22400 KB	Output is correct
15	Correct	197 ms	24400 KB	Output is correct
16	Correct	1 ms	348 KB	Output is correct
17	Correct	129 ms	18620 KB	Output is correct

Subtask #5

50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	118 ms	15276 KB	Output is correct
2	Correct	118 ms	18836 KB	Output is correct
3	Correct	123 ms	18872 KB	Output is correct
4	Correct	131 ms	19128 KB	Output is correct
5	Correct	125 ms	19800 KB	Output is correct
6	Correct	110 ms	18112 KB	Output is correct
7	Correct	117 ms	18364 KB	Output is correct
8	Correct	118 ms	18416 KB	Output is correct
9	Correct	127 ms	18872 KB	Output is correct
10	Correct	116 ms	18368 KB	Output is correct
11	Correct	194 ms	28092 KB	Output is correct
12	Correct	193 ms	26304 KB	Output is correct
13	Correct	203 ms	26112 KB	Output is correct
14	Correct	191 ms	23996 KB	Output is correct
15	Correct	185 ms	22336 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	130 ms	19308 KB	Output is correct
18	Correct	10 ms	856 KB	Output is correct
19	Correct	14 ms	1008 KB	Output is correct
20	Correct	11 ms	860 KB	Output is correct
21	Correct	11 ms	1024 KB	Output is correct
22	Correct	10 ms	992 KB	Output is correct
23	Correct	15 ms	1220 KB	Output is correct
24	Correct	11 ms	832 KB	Output is correct
25	Correct	13 ms	856 KB	Output is correct
26	Correct	11 ms	856 KB	Output is correct
27	Correct	10 ms	860 KB	Output is correct
28	Correct	10 ms	956 KB	Output is correct
29	Correct	10 ms	1128 KB	Output is correct
30	Correct	10 ms	1008 KB	Output is correct
31	Correct	10 ms	1036 KB	Output is correct
32	Correct	10 ms	1012 KB	Output is correct
33	Correct	0 ms	348 KB	Output is correct
34	Correct	10 ms	1008 KB	Output is correct
35	Correct	347 ms	3668 KB	Output is correct
36	Correct	263 ms	3408 KB	Output is correct
37	Correct	300 ms	3548 KB	Output is correct
38	Correct	265 ms	3408 KB	Output is correct
39	Correct	289 ms	3408 KB	Output is correct
40	Correct	290 ms	3352 KB	Output is correct
41	Correct	291 ms	3512 KB	Output is correct
42	Correct	297 ms	3408 KB	Output is correct
43	Correct	285 ms	3480 KB	Output is correct
44	Correct	279 ms	3248 KB	Output is correct
45	Correct	276 ms	3156 KB	Output is correct
46	Correct	279 ms	3236 KB	Output is correct
47	Correct	290 ms	3152 KB	Output is correct
48	Correct	273 ms	2900 KB	Output is correct
49	Correct	266 ms	2896 KB	Output is correct
50	Correct	0 ms	348 KB	Output is correct
51	Correct	271 ms	3176 KB	Output is correct
52	Correct	149 ms	16064 KB	Output is correct
53	Correct	128 ms	19616 KB	Output is correct
54	Correct	119 ms	18148 KB	Output is correct
55	Correct	117 ms	18108 KB	Output is correct
56	Correct	120 ms	18628 KB	Output is correct
57	Correct	117 ms	18364 KB	Output is correct
58	Correct	132 ms	18108 KB	Output is correct
59	Correct	125 ms	18328 KB	Output is correct
60	Correct	153 ms	18200 KB	Output is correct
61	Correct	134 ms	19468 KB	Output is correct
62	Correct	285 ms	26044 KB	Output is correct
63	Correct	297 ms	28664 KB	Output is correct
64	Correct	220 ms	25920 KB	Output is correct
65	Correct	199 ms	22400 KB	Output is correct
66	Correct	197 ms	24400 KB	Output is correct
67	Correct	1 ms	348 KB	Output is correct
68	Correct	129 ms	18620 KB	Output is correct
69	Correct	549 ms	22016 KB	Output is correct
70	Correct	455 ms	23024 KB	Output is correct
71	Correct	450 ms	21436 KB	Output is correct
72	Correct	477 ms	22468 KB	Output is correct
73	Correct	468 ms	22204 KB	Output is correct
74	Correct	474 ms	23532 KB	Output is correct
75	Correct	469 ms	21880 KB	Output is correct
76	Correct	455 ms	23468 KB	Output is correct
77	Correct	585 ms	21616 KB	Output is correct
78	Correct	467 ms	22208 KB	Output is correct
79	Correct	571 ms	31184 KB	Output is correct
80	Correct	537 ms	28948 KB	Output is correct
81	Correct	552 ms	28968 KB	Output is correct
82	Correct	581 ms	25476 KB	Output is correct
83	Correct	458 ms	24580 KB	Output is correct
84	Correct	0 ms	348 KB	Output is correct
85	Correct	442 ms	21836 KB	Output is correct