Submission #885692

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
885692	2023-12-10T13:14:13 Z	willychan	Event Hopping 2 (JOI21_event2)	C++17	100 / 100	163 ms	25292 KB

event2

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
//#include<bits/extc++.h>
//__gnu_pbds
struct seg{
	int l;
	int r;
	int ind;
};

vector<seg> arr; 
vector<int> f[20];
int n;
int getcnt(int l,int r){
	int cur = l;	
	int cnt = 0;
	for(int p=19;p>=0;p--){
		if(f[p][cur]<=r){
			cnt+=(1<<p);
			cur = f[p][cur];
		}
	} 
	return cnt;
}
int main(){
	ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	int K;cin>>n>>K;
	arr.resize(n+1);
	vector<int> d;
	for(int i=1;i<=n;i++){
		int a,b;cin>>a>>b;
		arr[i].l = a;
		arr[i].r = b;
		arr[i].ind = i;
		d.push_back(a);
		d.push_back(b);
	}
	sort(d.begin(),d.end());
	d.resize(unique(d.begin(),d.end())-d.begin());
	int D  = d.size();
	for(int i=0;i<20;i++) f[i].resize(D+1,0);
	vector<int> ord;	
	for(int i=1;i<=n;i++) ord.push_back(i);
	for(int i=1;i<=n;i++){
		arr[i].l = lower_bound(d.begin(),d.end(),arr[i].l)-d.begin()+1;
		arr[i].r = lower_bound(d.begin(),d.end(),arr[i].r)-d.begin()+1;
	}
	sort(ord.begin(),ord.end(),[&](const int &a,const int &b){return arr[a].l>arr[b].l;});
	{
	int head = 0;
	int minn = 1e9; 
	for(int i=D;i>=1;i--){
		while(head<n && arr[ord[head]].l>=i){
			 minn = min(minn,arr[ord[head]].r);
			 head++;
		}
		f[0][i] = minn;
	}
	}
	for(int p=1;p<20;p++){
		for(int i=1;i<=D;i++){
			if(f[p-1][i]>D) f[p][i]=1e9;
			else f[p][i] = f[p-1][f[p-1][i]];
		}
	}
	int allcnt = getcnt(1,D);
	map<int,int> aval;
	aval[1]=D;
	for(int i=1;i<=n;i++){
		if(K==0) break;
		int l = arr[i].l;
		int r = arr[i].r;
		if(aval.empty()) continue;
		auto it = aval.upper_bound(l);
		if(it==aval.begin()) continue;
		else --it;
		if(it->second<r) continue;
		int icnt = allcnt;
		icnt-=getcnt(it->first,it->second);
		icnt+=getcnt(it->first,l);
		icnt+=getcnt(r,it->second); 
		if(icnt+1>=K){
			cout<<i<<"\n";
			int L = it->first;
			int R = it->second;
			aval.erase(it);
			aval.insert({L,l});
			aval.insert({r,R});
			allcnt = icnt;
			K--;
		}
	}
	if(K){
		cout<<-1<<"\n";
	}
	return 0;
}

Subtask #1
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	94 ms	25232 KB	Output is correct
5	Correct	89 ms	25036 KB	Output is correct
6	Correct	86 ms	24816 KB	Output is correct
7	Correct	81 ms	24296 KB	Output is correct
8	Correct	91 ms	25172 KB	Output is correct
9	Correct	96 ms	25096 KB	Output is correct
10	Correct	86 ms	24864 KB	Output is correct
11	Correct	81 ms	24268 KB	Output is correct
12	Correct	76 ms	23248 KB	Output is correct
13	Correct	73 ms	23240 KB	Output is correct
14	Correct	72 ms	22992 KB	Output is correct
15	Correct	68 ms	22932 KB	Output is correct
16	Correct	53 ms	20956 KB	Output is correct
17	Correct	53 ms	20940 KB	Output is correct
18	Correct	51 ms	20940 KB	Output is correct
19	Correct	49 ms	20940 KB	Output is correct
20	Correct	50 ms	20968 KB	Output is correct
21	Correct	48 ms	20964 KB	Output is correct
22	Correct	49 ms	20972 KB	Output is correct
23	Correct	49 ms	20948 KB	Output is correct
24	Correct	50 ms	20812 KB	Output is correct
25	Correct	51 ms	20972 KB	Output is correct
26	Correct	52 ms	20912 KB	Output is correct
27	Correct	52 ms	20940 KB	Output is correct
28	Correct	52 ms	20940 KB	Output is correct
29	Correct	51 ms	20952 KB	Output is correct
30	Correct	50 ms	20940 KB	Output is correct
31	Correct	53 ms	20744 KB	Output is correct
32	Correct	57 ms	20940 KB	Output is correct
33	Correct	68 ms	20984 KB	Output is correct
34	Correct	60 ms	22244 KB	Output is correct
35	Correct	55 ms	21452 KB	Output is correct
36	Correct	47 ms	20840 KB	Output is correct
37	Correct	71 ms	22984 KB	Output is correct
38	Correct	71 ms	22976 KB	Output is correct
39	Correct	68 ms	22692 KB	Output is correct
40	Correct	66 ms	22752 KB	Output is correct
41	Correct	66 ms	22648 KB	Output is correct
42	Correct	58 ms	20944 KB	Output is correct
43	Correct	79 ms	22912 KB	Output is correct
44	Correct	74 ms	22736 KB	Output is correct
45	Correct	75 ms	22732 KB	Output is correct
46	Correct	75 ms	22664 KB	Output is correct

Subtask #2
1.0 / 1.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 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	600 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	456 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	0 ms	456 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	0 ms	348 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	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	452 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	0 ms	456 KB	Output is correct

Subtask #3
31.0 / 31.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 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	600 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	456 KB	Output is correct
10	Correct	0 ms	344 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	348 KB	Output is correct
15	Correct	0 ms	456 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	1 ms	348 KB	Output is correct
19	Correct	0 ms	348 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	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	452 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	0 ms	456 KB	Output is correct
28	Correct	2 ms	860 KB	Output is correct
29	Correct	2 ms	860 KB	Output is correct
30	Correct	2 ms	860 KB	Output is correct
31	Correct	2 ms	860 KB	Output is correct
32	Correct	2 ms	860 KB	Output is correct
33	Correct	2 ms	860 KB	Output is correct
34	Correct	3 ms	980 KB	Output is correct
35	Correct	3 ms	1116 KB	Output is correct
36	Correct	3 ms	1116 KB	Output is correct
37	Correct	3 ms	1116 KB	Output is correct
38	Correct	3 ms	1120 KB	Output is correct
39	Correct	4 ms	1112 KB	Output is correct
40	Correct	3 ms	1364 KB	Output is correct
41	Correct	3 ms	1116 KB	Output is correct
42	Correct	3 ms	920 KB	Output is correct
43	Correct	3 ms	1120 KB	Output is correct
44	Correct	2 ms	872 KB	Output is correct
45	Correct	2 ms	860 KB	Output is correct
46	Correct	3 ms	868 KB	Output is correct
47	Correct	2 ms	992 KB	Output is correct
48	Correct	2 ms	868 KB	Output is correct
49	Correct	2 ms	868 KB	Output is correct
50	Correct	2 ms	984 KB	Output is correct
51	Correct	2 ms	868 KB	Output is correct
52	Correct	2 ms	860 KB	Output is correct
53	Correct	2 ms	1080 KB	Output is correct
54	Correct	2 ms	868 KB	Output is correct
55	Correct	2 ms	868 KB	Output is correct
56	Correct	2 ms	864 KB	Output is correct
57	Correct	2 ms	868 KB	Output is correct
58	Correct	2 ms	860 KB	Output is correct
59	Correct	2 ms	864 KB	Output is correct
60	Correct	2 ms	868 KB	Output is correct
61	Correct	2 ms	860 KB	Output is correct
62	Correct	2 ms	868 KB	Output is correct
63	Correct	2 ms	864 KB	Output is correct
64	Correct	2 ms	824 KB	Output is correct

Subtask #4
61.0 / 61.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	348 KB	Output is correct
4	Correct	94 ms	25232 KB	Output is correct
5	Correct	89 ms	25036 KB	Output is correct
6	Correct	86 ms	24816 KB	Output is correct
7	Correct	81 ms	24296 KB	Output is correct
8	Correct	91 ms	25172 KB	Output is correct
9	Correct	96 ms	25096 KB	Output is correct
10	Correct	86 ms	24864 KB	Output is correct
11	Correct	81 ms	24268 KB	Output is correct
12	Correct	76 ms	23248 KB	Output is correct
13	Correct	73 ms	23240 KB	Output is correct
14	Correct	72 ms	22992 KB	Output is correct
15	Correct	68 ms	22932 KB	Output is correct
16	Correct	53 ms	20956 KB	Output is correct
17	Correct	53 ms	20940 KB	Output is correct
18	Correct	51 ms	20940 KB	Output is correct
19	Correct	49 ms	20940 KB	Output is correct
20	Correct	50 ms	20968 KB	Output is correct
21	Correct	48 ms	20964 KB	Output is correct
22	Correct	49 ms	20972 KB	Output is correct
23	Correct	49 ms	20948 KB	Output is correct
24	Correct	50 ms	20812 KB	Output is correct
25	Correct	51 ms	20972 KB	Output is correct
26	Correct	52 ms	20912 KB	Output is correct
27	Correct	52 ms	20940 KB	Output is correct
28	Correct	52 ms	20940 KB	Output is correct
29	Correct	51 ms	20952 KB	Output is correct
30	Correct	50 ms	20940 KB	Output is correct
31	Correct	53 ms	20744 KB	Output is correct
32	Correct	57 ms	20940 KB	Output is correct
33	Correct	68 ms	20984 KB	Output is correct
34	Correct	60 ms	22244 KB	Output is correct
35	Correct	55 ms	21452 KB	Output is correct
36	Correct	47 ms	20840 KB	Output is correct
37	Correct	71 ms	22984 KB	Output is correct
38	Correct	71 ms	22976 KB	Output is correct
39	Correct	68 ms	22692 KB	Output is correct
40	Correct	66 ms	22752 KB	Output is correct
41	Correct	66 ms	22648 KB	Output is correct
42	Correct	58 ms	20944 KB	Output is correct
43	Correct	79 ms	22912 KB	Output is correct
44	Correct	74 ms	22736 KB	Output is correct
45	Correct	75 ms	22732 KB	Output is correct
46	Correct	75 ms	22664 KB	Output is correct
47	Correct	1 ms	348 KB	Output is correct
48	Correct	0 ms	348 KB	Output is correct
49	Correct	0 ms	348 KB	Output is correct
50	Correct	0 ms	348 KB	Output is correct
51	Correct	0 ms	600 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	456 KB	Output is correct
56	Correct	0 ms	344 KB	Output is correct
57	Correct	0 ms	348 KB	Output is correct
58	Correct	1 ms	348 KB	Output is correct
59	Correct	0 ms	348 KB	Output is correct
60	Correct	1 ms	348 KB	Output is correct
61	Correct	0 ms	456 KB	Output is correct
62	Correct	0 ms	348 KB	Output is correct
63	Correct	1 ms	348 KB	Output is correct
64	Correct	1 ms	348 KB	Output is correct
65	Correct	0 ms	348 KB	Output is correct
66	Correct	0 ms	348 KB	Output is correct
67	Correct	0 ms	348 KB	Output is correct
68	Correct	0 ms	348 KB	Output is correct
69	Correct	0 ms	348 KB	Output is correct
70	Correct	0 ms	452 KB	Output is correct
71	Correct	0 ms	348 KB	Output is correct
72	Correct	0 ms	348 KB	Output is correct
73	Correct	0 ms	456 KB	Output is correct
74	Correct	2 ms	860 KB	Output is correct
75	Correct	2 ms	860 KB	Output is correct
76	Correct	2 ms	860 KB	Output is correct
77	Correct	2 ms	860 KB	Output is correct
78	Correct	2 ms	860 KB	Output is correct
79	Correct	2 ms	860 KB	Output is correct
80	Correct	3 ms	980 KB	Output is correct
81	Correct	3 ms	1116 KB	Output is correct
82	Correct	3 ms	1116 KB	Output is correct
83	Correct	3 ms	1116 KB	Output is correct
84	Correct	3 ms	1120 KB	Output is correct
85	Correct	4 ms	1112 KB	Output is correct
86	Correct	3 ms	1364 KB	Output is correct
87	Correct	3 ms	1116 KB	Output is correct
88	Correct	3 ms	920 KB	Output is correct
89	Correct	3 ms	1120 KB	Output is correct
90	Correct	2 ms	872 KB	Output is correct
91	Correct	2 ms	860 KB	Output is correct
92	Correct	3 ms	868 KB	Output is correct
93	Correct	2 ms	992 KB	Output is correct
94	Correct	2 ms	868 KB	Output is correct
95	Correct	2 ms	868 KB	Output is correct
96	Correct	2 ms	984 KB	Output is correct
97	Correct	2 ms	868 KB	Output is correct
98	Correct	2 ms	860 KB	Output is correct
99	Correct	2 ms	1080 KB	Output is correct
100	Correct	2 ms	868 KB	Output is correct
101	Correct	2 ms	868 KB	Output is correct
102	Correct	2 ms	864 KB	Output is correct
103	Correct	2 ms	868 KB	Output is correct
104	Correct	2 ms	860 KB	Output is correct
105	Correct	2 ms	864 KB	Output is correct
106	Correct	2 ms	868 KB	Output is correct
107	Correct	2 ms	860 KB	Output is correct
108	Correct	2 ms	868 KB	Output is correct
109	Correct	2 ms	864 KB	Output is correct
110	Correct	2 ms	824 KB	Output is correct
111	Correct	79 ms	20980 KB	Output is correct
112	Correct	76 ms	20960 KB	Output is correct
113	Correct	76 ms	20944 KB	Output is correct
114	Correct	74 ms	20940 KB	Output is correct
115	Correct	73 ms	20944 KB	Output is correct
116	Correct	94 ms	21132 KB	Output is correct
117	Correct	96 ms	20868 KB	Output is correct
118	Correct	163 ms	25292 KB	Output is correct
119	Correct	160 ms	24736 KB	Output is correct
120	Correct	116 ms	22764 KB	Output is correct
121	Correct	110 ms	20976 KB	Output is correct
122	Correct	131 ms	23316 KB	Output is correct
123	Correct	124 ms	23112 KB	Output is correct
124	Correct	114 ms	22736 KB	Output is correct
125	Correct	108 ms	20940 KB	Output is correct
126	Correct	96 ms	20940 KB	Output is correct
127	Correct	89 ms	20964 KB	Output is correct
128	Correct	87 ms	20940 KB	Output is correct
129	Correct	104 ms	20964 KB	Output is correct
130	Correct	81 ms	20968 KB	Output is correct
131	Correct	80 ms	21200 KB	Output is correct
132	Correct	79 ms	20944 KB	Output is correct
133	Correct	100 ms	20868 KB	Output is correct
134	Correct	79 ms	20840 KB	Output is correct
135	Correct	77 ms	20944 KB	Output is correct
136	Correct	74 ms	20808 KB	Output is correct
137	Correct	93 ms	20968 KB	Output is correct
138	Correct	74 ms	20944 KB	Output is correct
139	Correct	79 ms	20940 KB	Output is correct
140	Correct	74 ms	20956 KB	Output is correct
141	Correct	102 ms	20968 KB	Output is correct
142	Correct	86 ms	17612 KB	Output is correct
143	Correct	86 ms	17728 KB	Output is correct
144	Correct	91 ms	17760 KB	Output is correct
145	Correct	94 ms	17768 KB	Output is correct
146	Correct	92 ms	17616 KB	Output is correct
147	Correct	86 ms	17616 KB	Output is correct
148	Correct	85 ms	17356 KB	Output is correct
149	Correct	83 ms	17280 KB	Output is correct
150	Correct	80 ms	17260 KB	Output is correct
151	Correct	79 ms	16780 KB	Output is correct
152	Correct	44 ms	13004 KB	Output is correct
153	Correct	85 ms	17644 KB	Output is correct
154	Correct	85 ms	17696 KB	Output is correct
155	Correct	83 ms	17652 KB	Output is correct
156	Correct	83 ms	17360 KB	Output is correct
157	Correct	80 ms	17480 KB	Output is correct
158	Correct	87 ms	17152 KB	Output is correct
159	Correct	74 ms	16588 KB	Output is correct
160	Correct	45 ms	13008 KB	Output is correct
161	Correct	113 ms	19092 KB	Output is correct
162	Correct	112 ms	19060 KB	Output is correct
163	Correct	103 ms	18828 KB	Output is correct
164	Correct	103 ms	18640 KB	Output is correct
165	Correct	99 ms	18716 KB	Output is correct
166	Correct	59 ms	20944 KB	Output is correct
167	Correct	76 ms	22916 KB	Output is correct
168	Correct	75 ms	22796 KB	Output is correct
169	Correct	74 ms	22792 KB	Output is correct
170	Correct	72 ms	22532 KB	Output is correct
171	Correct	73 ms	22304 KB	Output is correct
172	Correct	75 ms	22988 KB	Output is correct
173	Correct	105 ms	15188 KB	Output is correct
174	Correct	104 ms	15036 KB	Output is correct
175	Correct	113 ms	15312 KB	Output is correct
176	Correct	92 ms	14540 KB	Output is correct

Submission #885692

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 1.0 / 1.0

Subtask #3 31.0 / 31.0

Subtask #4 61.0 / 61.0

Subtask #1
7.0 / 7.0

Subtask #2
1.0 / 1.0

Subtask #3
31.0 / 31.0

Subtask #4
61.0 / 61.0