Submission #855892

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
855892	2023-10-02T07:06:20 Z	NotLinux	Osumnjičeni (COCI21_osumnjiceni)	C++17	110 / 110	420 ms	33668 KB

Main

#include <bits/stdc++.h>
using namespace std;
void solve(){
	int n;cin >> n;
	int l[n],r[n],lift[n+1][21];
	lift[n][0] = n;
	for(int i = 0;i<n;i++)cin >> l[i] >> r[i];
	set < pair < int , int > > ste;
	int rp = 0;
	for(int lp = 0;lp < n;lp++){
		while(rp != n){
			//cout << lp << " : ";for(auto itr : ste)cout << itr.first << "," << itr.second << "   ";cout << endl;
			if(ste.size() == 0){
			//	cout << "added " << lp << " " << rp << endl;
				ste.insert({l[rp],r[rp]});
				rp++;
			}
			else{
				auto it = ste.lower_bound(make_pair(l[rp],1e9 + 7));
				pair < int , int > cand1 , cand2;

				if(it == ste.end())cand2 = {-1,-1};
				else cand2 = *it;

				if(it == ste.begin())cand1 = {-1,-1};
				else cand1 = *(--it);

			//	cout << "trying : " << lp << " " << rp << " " << cand1.first << " " << cand1.second << " : " << cand2.first << " " << cand2.second << endl;
				if((cand1.first > r[rp] or cand1.second < l[rp]) and (cand2.first > r[rp] or cand2.second < l[rp])){
					ste.insert({l[rp],r[rp]});
					rp++;
					//cout << "succes" << endl;
				}
				else {
					//cout << "failure" << endl;
					break;
				}
			}
		}
		lift[lp][0] = rp;
		ste.extract({l[lp],r[lp]});
		//cout << lp << " " << rp << endl;
	}
	for(int i = 1;i<21;i++){
		for(int j = 0;j<=n;j++){
			lift[j][i] = lift[lift[j][i-1]][i-1];
		}
	}
	int q;cin >> q;
	while(q--){
		int ql,qr;cin >> ql >> qr;ql--;qr--;
		int ans = 0 , cur = ql;
		for(int i = 20;i>=0;i--){
			if(lift[cur][i] <= qr){
				cur = lift[cur][i];
				ans += (1 << i);
			}
		}
		cout << ans+1 << endl;
	}
}
signed main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	int testcase = 1;//cin >> testcase;
	while(testcase--)solve();
}

Subtask #1

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	61 ms	17496 KB	Output is correct
2	Correct	63 ms	20816 KB	Output is correct
3	Correct	61 ms	21076 KB	Output is correct
4	Correct	65 ms	21336 KB	Output is correct
5	Correct	67 ms	22088 KB	Output is correct
6	Correct	56 ms	20056 KB	Output is correct
7	Correct	60 ms	20560 KB	Output is correct
8	Correct	62 ms	20560 KB	Output is correct
9	Correct	71 ms	21328 KB	Output is correct
10	Correct	67 ms	20484 KB	Output is correct
11	Correct	168 ms	30384 KB	Output is correct
12	Correct	165 ms	28756 KB	Output is correct
13	Correct	152 ms	28296 KB	Output is correct
14	Correct	152 ms	26448 KB	Output is correct
15	Correct	144 ms	24448 KB	Output is correct
16	Correct	0 ms	344 KB	Output is correct
17	Correct	59 ms	21536 KB	Output is correct

Subtask #2

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	856 KB	Output is correct
2	Correct	8 ms	984 KB	Output is correct
3	Correct	12 ms	860 KB	Output is correct
4	Correct	8 ms	860 KB	Output is correct
5	Correct	8 ms	856 KB	Output is correct
6	Correct	9 ms	856 KB	Output is correct
7	Correct	8 ms	860 KB	Output is correct
8	Correct	8 ms	980 KB	Output is correct
9	Correct	9 ms	1008 KB	Output is correct
10	Correct	8 ms	860 KB	Output is correct
11	Correct	9 ms	1116 KB	Output is correct
12	Correct	9 ms	1116 KB	Output is correct
13	Correct	8 ms	1116 KB	Output is correct
14	Correct	9 ms	856 KB	Output is correct
15	Correct	9 ms	860 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	8 ms	1020 KB	Output is correct

Subtask #3

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	8 ms	856 KB	Output is correct
2	Correct	8 ms	984 KB	Output is correct
3	Correct	12 ms	860 KB	Output is correct
4	Correct	8 ms	860 KB	Output is correct
5	Correct	8 ms	856 KB	Output is correct
6	Correct	9 ms	856 KB	Output is correct
7	Correct	8 ms	860 KB	Output is correct
8	Correct	8 ms	980 KB	Output is correct
9	Correct	9 ms	1008 KB	Output is correct
10	Correct	8 ms	860 KB	Output is correct
11	Correct	9 ms	1116 KB	Output is correct
12	Correct	9 ms	1116 KB	Output is correct
13	Correct	8 ms	1116 KB	Output is correct
14	Correct	9 ms	856 KB	Output is correct
15	Correct	9 ms	860 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	8 ms	1020 KB	Output is correct
18	Correct	284 ms	3516 KB	Output is correct
19	Correct	243 ms	3412 KB	Output is correct
20	Correct	274 ms	3632 KB	Output is correct
21	Correct	243 ms	3696 KB	Output is correct
22	Correct	257 ms	3408 KB	Output is correct
23	Correct	246 ms	3448 KB	Output is correct
24	Correct	254 ms	3512 KB	Output is correct
25	Correct	274 ms	3452 KB	Output is correct
26	Correct	254 ms	3412 KB	Output is correct
27	Correct	246 ms	3668 KB	Output is correct
28	Correct	233 ms	3240 KB	Output is correct
29	Correct	245 ms	3152 KB	Output is correct
30	Correct	245 ms	3424 KB	Output is correct
31	Correct	241 ms	3132 KB	Output is correct
32	Correct	237 ms	3164 KB	Output is correct
33	Correct	0 ms	348 KB	Output is correct
34	Correct	251 ms	3100 KB	Output is correct

Subtask #4

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	69 ms	18264 KB	Output is correct
2	Correct	65 ms	21744 KB	Output is correct
3	Correct	57 ms	20304 KB	Output is correct
4	Correct	57 ms	20116 KB	Output is correct
5	Correct	60 ms	20744 KB	Output is correct
6	Correct	56 ms	20188 KB	Output is correct
7	Correct	62 ms	20048 KB	Output is correct
8	Correct	62 ms	20352 KB	Output is correct
9	Correct	61 ms	20052 KB	Output is correct
10	Correct	73 ms	21588 KB	Output is correct
11	Correct	149 ms	28192 KB	Output is correct
12	Correct	174 ms	31312 KB	Output is correct
13	Correct	148 ms	28204 KB	Output is correct
14	Correct	144 ms	24584 KB	Output is correct
15	Correct	164 ms	26708 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	56 ms	20724 KB	Output is correct

Subtask #5

50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	61 ms	17496 KB	Output is correct
2	Correct	63 ms	20816 KB	Output is correct
3	Correct	61 ms	21076 KB	Output is correct
4	Correct	65 ms	21336 KB	Output is correct
5	Correct	67 ms	22088 KB	Output is correct
6	Correct	56 ms	20056 KB	Output is correct
7	Correct	60 ms	20560 KB	Output is correct
8	Correct	62 ms	20560 KB	Output is correct
9	Correct	71 ms	21328 KB	Output is correct
10	Correct	67 ms	20484 KB	Output is correct
11	Correct	168 ms	30384 KB	Output is correct
12	Correct	165 ms	28756 KB	Output is correct
13	Correct	152 ms	28296 KB	Output is correct
14	Correct	152 ms	26448 KB	Output is correct
15	Correct	144 ms	24448 KB	Output is correct
16	Correct	0 ms	344 KB	Output is correct
17	Correct	59 ms	21536 KB	Output is correct
18	Correct	8 ms	856 KB	Output is correct
19	Correct	8 ms	984 KB	Output is correct
20	Correct	12 ms	860 KB	Output is correct
21	Correct	8 ms	860 KB	Output is correct
22	Correct	8 ms	856 KB	Output is correct
23	Correct	9 ms	856 KB	Output is correct
24	Correct	8 ms	860 KB	Output is correct
25	Correct	8 ms	980 KB	Output is correct
26	Correct	9 ms	1008 KB	Output is correct
27	Correct	8 ms	860 KB	Output is correct
28	Correct	9 ms	1116 KB	Output is correct
29	Correct	9 ms	1116 KB	Output is correct
30	Correct	8 ms	1116 KB	Output is correct
31	Correct	9 ms	856 KB	Output is correct
32	Correct	9 ms	860 KB	Output is correct
33	Correct	0 ms	348 KB	Output is correct
34	Correct	8 ms	1020 KB	Output is correct
35	Correct	284 ms	3516 KB	Output is correct
36	Correct	243 ms	3412 KB	Output is correct
37	Correct	274 ms	3632 KB	Output is correct
38	Correct	243 ms	3696 KB	Output is correct
39	Correct	257 ms	3408 KB	Output is correct
40	Correct	246 ms	3448 KB	Output is correct
41	Correct	254 ms	3512 KB	Output is correct
42	Correct	274 ms	3452 KB	Output is correct
43	Correct	254 ms	3412 KB	Output is correct
44	Correct	246 ms	3668 KB	Output is correct
45	Correct	233 ms	3240 KB	Output is correct
46	Correct	245 ms	3152 KB	Output is correct
47	Correct	245 ms	3424 KB	Output is correct
48	Correct	241 ms	3132 KB	Output is correct
49	Correct	237 ms	3164 KB	Output is correct
50	Correct	0 ms	348 KB	Output is correct
51	Correct	251 ms	3100 KB	Output is correct
52	Correct	69 ms	18264 KB	Output is correct
53	Correct	65 ms	21744 KB	Output is correct
54	Correct	57 ms	20304 KB	Output is correct
55	Correct	57 ms	20116 KB	Output is correct
56	Correct	60 ms	20744 KB	Output is correct
57	Correct	56 ms	20188 KB	Output is correct
58	Correct	62 ms	20048 KB	Output is correct
59	Correct	62 ms	20352 KB	Output is correct
60	Correct	61 ms	20052 KB	Output is correct
61	Correct	73 ms	21588 KB	Output is correct
62	Correct	149 ms	28192 KB	Output is correct
63	Correct	174 ms	31312 KB	Output is correct
64	Correct	148 ms	28204 KB	Output is correct
65	Correct	144 ms	24584 KB	Output is correct
66	Correct	164 ms	26708 KB	Output is correct
67	Correct	0 ms	348 KB	Output is correct
68	Correct	56 ms	20724 KB	Output is correct
69	Correct	394 ms	24084 KB	Output is correct
70	Correct	385 ms	25288 KB	Output is correct
71	Correct	389 ms	23636 KB	Output is correct
72	Correct	391 ms	24656 KB	Output is correct
73	Correct	382 ms	24404 KB	Output is correct
74	Correct	382 ms	25424 KB	Output is correct
75	Correct	390 ms	23924 KB	Output is correct
76	Correct	397 ms	25752 KB	Output is correct
77	Correct	361 ms	23632 KB	Output is correct
78	Correct	401 ms	24400 KB	Output is correct
79	Correct	420 ms	33668 KB	Output is correct
80	Correct	401 ms	31560 KB	Output is correct
81	Correct	409 ms	30908 KB	Output is correct
82	Correct	394 ms	27728 KB	Output is correct
83	Correct	399 ms	26792 KB	Output is correct
84	Correct	0 ms	348 KB	Output is correct
85	Correct	330 ms	23880 KB	Output is correct