답안 #594488

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
594488	2022-07-12T14:16:52 Z	SuffixAutomata	Event Hopping 2 (JOI21_event2)	C++17	100 / 100	169 ms	18108 KB

event2

#include <bits/stdc++.h>
using namespace std;

#define all(a) a.begin(), a.end()
#define fi first
#define se second
#define pb push_back
#define mp make_pair

using ll = long long;
using pii = pair<int, int>;
//#define int ll
const int MOD = 1000000007;

int l[100005], r[100005], mir[100005];
int nex[18][100005];
vector<pii> ls;
int n, k;

int qry(int L, int R) {
  int c = lower_bound(all(ls), pii{L, -1})->se, x = 1;

  // cout << c << ' ' << mir[c] << endl;
  c = mir[c];
  if (r[c] > R)
    return 0;
  // cout << c << endl;
  for (int i = 17; i >= 0; i--)
    if (r[nex[i][c]] <= R)
      c = nex[i][c], x += (1 << i);
  return x;
}

signed main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cin >> n >> k;
  vector<pii> evt1;
  for (int i = 1; i <= n; i++) {
    cin >> l[i] >> r[i];
    evt1.pb({l[i], i});
    evt1.pb({r[i], -i});
    ls.pb({l[i], i});
  }
  ls.pb({2e9, 0});
  sort(all(evt1));
  sort(all(ls));
  pii x = {2e9, 0}, cr = {2e9, 0};
  r[0] = (int)(2e9) + 1;
  while (evt1.size()) {
    int p = evt1.back().se;
    evt1.pop_back();
    if (p < 0)
      nex[0][-p] = x.se;
    else {
      x = min(x, {r[p], p});
      cr = min(cr, {r[p], p});
      mir[p] = cr.se;
    }
  }
  for (int j = 1; j < 18; j++)
    for (int i = 1; i <= n; i++)
      nex[j][i] = nex[j - 1][nex[j - 1][i]];
  // while (1) {
  //   int l, r;
  //   cin >> l >> r;
  //   cout << qry(l, r) << endl;
  // }
  int cur = qry(0, 2e9);
  // cout << cur << endl;
  if (cur < k) {
    cout << -1 << endl;
    return 0;
  }
  set<pii> borders;
  borders.insert({-1, 0});
  borders.insert({2e9, (int)(2e9) + 1});
  int cnt = 0;
  for (int i = 1; i <= n; i++) {
    int cl = l[i], cr = r[i];
    auto it = prev(borders.lower_bound({cr, -1}));
    if (max(it->fi, cl) < min(it->se, cr))
      continue;
    auto it2 = next(it);
    int test =
        cur - qry(it->se, it2->fi) + qry(it->se, cl) + qry(cr, it2->fi) + 1;
    if (test >= k) {
      borders.insert({cl, cr});
      cur = test, cnt++;
      cout << i << "\n";
      if (cnt == k)
        break;
    }
  }
  return 0;
}

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	328 KB	Output is correct
4	Correct	93 ms	16304 KB	Output is correct
5	Correct	95 ms	16200 KB	Output is correct
6	Correct	88 ms	15900 KB	Output is correct
7	Correct	82 ms	15436 KB	Output is correct
8	Correct	94 ms	16400 KB	Output is correct
9	Correct	92 ms	16132 KB	Output is correct
10	Correct	89 ms	15948 KB	Output is correct
11	Correct	83 ms	15420 KB	Output is correct
12	Correct	77 ms	14552 KB	Output is correct
13	Correct	71 ms	15644 KB	Output is correct
14	Correct	69 ms	15564 KB	Output is correct
15	Correct	65 ms	15164 KB	Output is correct
16	Correct	47 ms	13892 KB	Output is correct
17	Correct	47 ms	13908 KB	Output is correct
18	Correct	47 ms	13928 KB	Output is correct
19	Correct	40 ms	13756 KB	Output is correct
20	Correct	42 ms	13776 KB	Output is correct
21	Correct	40 ms	13800 KB	Output is correct
22	Correct	41 ms	13732 KB	Output is correct
23	Correct	41 ms	13752 KB	Output is correct
24	Correct	40 ms	13792 KB	Output is correct
25	Correct	42 ms	13888 KB	Output is correct
26	Correct	43 ms	13748 KB	Output is correct
27	Correct	44 ms	13740 KB	Output is correct
28	Correct	32 ms	13776 KB	Output is correct
29	Correct	33 ms	13804 KB	Output is correct
30	Correct	37 ms	13764 KB	Output is correct
31	Correct	38 ms	13776 KB	Output is correct
32	Correct	48 ms	13752 KB	Output is correct
33	Correct	42 ms	13760 KB	Output is correct
34	Correct	57 ms	14644 KB	Output is correct
35	Correct	48 ms	14008 KB	Output is correct
36	Correct	40 ms	13864 KB	Output is correct
37	Correct	67 ms	15448 KB	Output is correct
38	Correct	65 ms	15348 KB	Output is correct
39	Correct	63 ms	15208 KB	Output is correct
40	Correct	75 ms	15224 KB	Output is correct
41	Correct	63 ms	15016 KB	Output is correct
42	Correct	42 ms	13852 KB	Output is correct
43	Correct	74 ms	15288 KB	Output is correct
44	Correct	72 ms	15228 KB	Output is correct
45	Correct	70 ms	15064 KB	Output is correct
46	Correct	72 ms	14944 KB	Output is correct

Subtask #2
1.0 / 1.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	0 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	328 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	0 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	0 ms	340 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	0 ms	340 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	0 ms	340 KB	Output is correct
24	Correct	0 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	0 ms	340 KB	Output is correct
27	Correct	0 ms	340 KB	Output is correct

Subtask #3
31.0 / 31.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	0 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	0 ms	340 KB	Output is correct
9	Correct	1 ms	340 KB	Output is correct
10	Correct	1 ms	328 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	332 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	0 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	0 ms	340 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	0 ms	340 KB	Output is correct
22	Correct	1 ms	340 KB	Output is correct
23	Correct	0 ms	340 KB	Output is correct
24	Correct	0 ms	340 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	0 ms	340 KB	Output is correct
27	Correct	0 ms	340 KB	Output is correct
28	Correct	2 ms	812 KB	Output is correct
29	Correct	2 ms	808 KB	Output is correct
30	Correct	2 ms	724 KB	Output is correct
31	Correct	2 ms	724 KB	Output is correct
32	Correct	2 ms	724 KB	Output is correct
33	Correct	2 ms	724 KB	Output is correct
34	Correct	2 ms	724 KB	Output is correct
35	Correct	5 ms	852 KB	Output is correct
36	Correct	3 ms	852 KB	Output is correct
37	Correct	3 ms	852 KB	Output is correct
38	Correct	2 ms	728 KB	Output is correct
39	Correct	3 ms	852 KB	Output is correct
40	Correct	4 ms	852 KB	Output is correct
41	Correct	3 ms	852 KB	Output is correct
42	Correct	2 ms	724 KB	Output is correct
43	Correct	2 ms	852 KB	Output is correct
44	Correct	3 ms	852 KB	Output is correct
45	Correct	2 ms	724 KB	Output is correct
46	Correct	2 ms	724 KB	Output is correct
47	Correct	2 ms	724 KB	Output is correct
48	Correct	2 ms	724 KB	Output is correct
49	Correct	2 ms	724 KB	Output is correct
50	Correct	2 ms	724 KB	Output is correct
51	Correct	2 ms	724 KB	Output is correct
52	Correct	3 ms	724 KB	Output is correct
53	Correct	3 ms	852 KB	Output is correct
54	Correct	2 ms	724 KB	Output is correct
55	Correct	3 ms	932 KB	Output is correct
56	Correct	4 ms	852 KB	Output is correct
57	Correct	3 ms	848 KB	Output is correct
58	Correct	3 ms	852 KB	Output is correct
59	Correct	3 ms	832 KB	Output is correct
60	Correct	3 ms	852 KB	Output is correct
61	Correct	3 ms	848 KB	Output is correct
62	Correct	3 ms	852 KB	Output is correct
63	Correct	3 ms	856 KB	Output is correct
64	Correct	1 ms	724 KB	Output is correct

Subtask #4
61.0 / 61.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	328 KB	Output is correct
4	Correct	93 ms	16304 KB	Output is correct
5	Correct	95 ms	16200 KB	Output is correct
6	Correct	88 ms	15900 KB	Output is correct
7	Correct	82 ms	15436 KB	Output is correct
8	Correct	94 ms	16400 KB	Output is correct
9	Correct	92 ms	16132 KB	Output is correct
10	Correct	89 ms	15948 KB	Output is correct
11	Correct	83 ms	15420 KB	Output is correct
12	Correct	77 ms	14552 KB	Output is correct
13	Correct	71 ms	15644 KB	Output is correct
14	Correct	69 ms	15564 KB	Output is correct
15	Correct	65 ms	15164 KB	Output is correct
16	Correct	47 ms	13892 KB	Output is correct
17	Correct	47 ms	13908 KB	Output is correct
18	Correct	47 ms	13928 KB	Output is correct
19	Correct	40 ms	13756 KB	Output is correct
20	Correct	42 ms	13776 KB	Output is correct
21	Correct	40 ms	13800 KB	Output is correct
22	Correct	41 ms	13732 KB	Output is correct
23	Correct	41 ms	13752 KB	Output is correct
24	Correct	40 ms	13792 KB	Output is correct
25	Correct	42 ms	13888 KB	Output is correct
26	Correct	43 ms	13748 KB	Output is correct
27	Correct	44 ms	13740 KB	Output is correct
28	Correct	32 ms	13776 KB	Output is correct
29	Correct	33 ms	13804 KB	Output is correct
30	Correct	37 ms	13764 KB	Output is correct
31	Correct	38 ms	13776 KB	Output is correct
32	Correct	48 ms	13752 KB	Output is correct
33	Correct	42 ms	13760 KB	Output is correct
34	Correct	57 ms	14644 KB	Output is correct
35	Correct	48 ms	14008 KB	Output is correct
36	Correct	40 ms	13864 KB	Output is correct
37	Correct	67 ms	15448 KB	Output is correct
38	Correct	65 ms	15348 KB	Output is correct
39	Correct	63 ms	15208 KB	Output is correct
40	Correct	75 ms	15224 KB	Output is correct
41	Correct	63 ms	15016 KB	Output is correct
42	Correct	42 ms	13852 KB	Output is correct
43	Correct	74 ms	15288 KB	Output is correct
44	Correct	72 ms	15228 KB	Output is correct
45	Correct	70 ms	15064 KB	Output is correct
46	Correct	72 ms	14944 KB	Output is correct
47	Correct	1 ms	340 KB	Output is correct
48	Correct	1 ms	340 KB	Output is correct
49	Correct	0 ms	340 KB	Output is correct
50	Correct	1 ms	340 KB	Output is correct
51	Correct	1 ms	340 KB	Output is correct
52	Correct	0 ms	340 KB	Output is correct
53	Correct	1 ms	340 KB	Output is correct
54	Correct	0 ms	340 KB	Output is correct
55	Correct	1 ms	340 KB	Output is correct
56	Correct	1 ms	328 KB	Output is correct
57	Correct	1 ms	340 KB	Output is correct
58	Correct	1 ms	332 KB	Output is correct
59	Correct	1 ms	340 KB	Output is correct
60	Correct	1 ms	340 KB	Output is correct
61	Correct	0 ms	340 KB	Output is correct
62	Correct	1 ms	340 KB	Output is correct
63	Correct	0 ms	340 KB	Output is correct
64	Correct	1 ms	332 KB	Output is correct
65	Correct	1 ms	340 KB	Output is correct
66	Correct	1 ms	340 KB	Output is correct
67	Correct	0 ms	340 KB	Output is correct
68	Correct	1 ms	340 KB	Output is correct
69	Correct	0 ms	340 KB	Output is correct
70	Correct	0 ms	340 KB	Output is correct
71	Correct	1 ms	340 KB	Output is correct
72	Correct	0 ms	340 KB	Output is correct
73	Correct	0 ms	340 KB	Output is correct
74	Correct	2 ms	812 KB	Output is correct
75	Correct	2 ms	808 KB	Output is correct
76	Correct	2 ms	724 KB	Output is correct
77	Correct	2 ms	724 KB	Output is correct
78	Correct	2 ms	724 KB	Output is correct
79	Correct	2 ms	724 KB	Output is correct
80	Correct	2 ms	724 KB	Output is correct
81	Correct	5 ms	852 KB	Output is correct
82	Correct	3 ms	852 KB	Output is correct
83	Correct	3 ms	852 KB	Output is correct
84	Correct	2 ms	728 KB	Output is correct
85	Correct	3 ms	852 KB	Output is correct
86	Correct	4 ms	852 KB	Output is correct
87	Correct	3 ms	852 KB	Output is correct
88	Correct	2 ms	724 KB	Output is correct
89	Correct	2 ms	852 KB	Output is correct
90	Correct	3 ms	852 KB	Output is correct
91	Correct	2 ms	724 KB	Output is correct
92	Correct	2 ms	724 KB	Output is correct
93	Correct	2 ms	724 KB	Output is correct
94	Correct	2 ms	724 KB	Output is correct
95	Correct	2 ms	724 KB	Output is correct
96	Correct	2 ms	724 KB	Output is correct
97	Correct	2 ms	724 KB	Output is correct
98	Correct	3 ms	724 KB	Output is correct
99	Correct	3 ms	852 KB	Output is correct
100	Correct	2 ms	724 KB	Output is correct
101	Correct	3 ms	932 KB	Output is correct
102	Correct	4 ms	852 KB	Output is correct
103	Correct	3 ms	848 KB	Output is correct
104	Correct	3 ms	852 KB	Output is correct
105	Correct	3 ms	832 KB	Output is correct
106	Correct	3 ms	852 KB	Output is correct
107	Correct	3 ms	848 KB	Output is correct
108	Correct	3 ms	852 KB	Output is correct
109	Correct	3 ms	856 KB	Output is correct
110	Correct	1 ms	724 KB	Output is correct
111	Correct	56 ms	13832 KB	Output is correct
112	Correct	58 ms	13800 KB	Output is correct
113	Correct	55 ms	13848 KB	Output is correct
114	Correct	54 ms	13832 KB	Output is correct
115	Correct	54 ms	13840 KB	Output is correct
116	Correct	51 ms	13844 KB	Output is correct
117	Correct	55 ms	13760 KB	Output is correct
118	Correct	169 ms	17704 KB	Output is correct
119	Correct	167 ms	17264 KB	Output is correct
120	Correct	119 ms	15184 KB	Output is correct
121	Correct	50 ms	13756 KB	Output is correct
122	Correct	130 ms	15780 KB	Output is correct
123	Correct	126 ms	15552 KB	Output is correct
124	Correct	120 ms	15212 KB	Output is correct
125	Correct	50 ms	13756 KB	Output is correct
126	Correct	83 ms	13864 KB	Output is correct
127	Correct	78 ms	13884 KB	Output is correct
128	Correct	74 ms	13844 KB	Output is correct
129	Correct	52 ms	13772 KB	Output is correct
130	Correct	69 ms	13776 KB	Output is correct
131	Correct	65 ms	13844 KB	Output is correct
132	Correct	62 ms	13756 KB	Output is correct
133	Correct	50 ms	13832 KB	Output is correct
134	Correct	67 ms	13760 KB	Output is correct
135	Correct	57 ms	13848 KB	Output is correct
136	Correct	55 ms	13792 KB	Output is correct
137	Correct	50 ms	13768 KB	Output is correct
138	Correct	54 ms	13736 KB	Output is correct
139	Correct	55 ms	13852 KB	Output is correct
140	Correct	52 ms	13772 KB	Output is correct
141	Correct	49 ms	13764 KB	Output is correct
142	Correct	105 ms	18096 KB	Output is correct
143	Correct	97 ms	18084 KB	Output is correct
144	Correct	101 ms	18108 KB	Output is correct
145	Correct	87 ms	17984 KB	Output is correct
146	Correct	84 ms	17844 KB	Output is correct
147	Correct	82 ms	17852 KB	Output is correct
148	Correct	83 ms	17760 KB	Output is correct
149	Correct	85 ms	17548 KB	Output is correct
150	Correct	81 ms	17468 KB	Output is correct
151	Correct	75 ms	16952 KB	Output is correct
152	Correct	32 ms	13764 KB	Output is correct
153	Correct	87 ms	18040 KB	Output is correct
154	Correct	86 ms	17948 KB	Output is correct
155	Correct	84 ms	17848 KB	Output is correct
156	Correct	87 ms	17724 KB	Output is correct
157	Correct	81 ms	17584 KB	Output is correct
158	Correct	81 ms	17536 KB	Output is correct
159	Correct	74 ms	16988 KB	Output is correct
160	Correct	34 ms	13768 KB	Output is correct
161	Correct	129 ms	15348 KB	Output is correct
162	Correct	115 ms	15340 KB	Output is correct
163	Correct	121 ms	15384 KB	Output is correct
164	Correct	111 ms	15172 KB	Output is correct
165	Correct	104 ms	15000 KB	Output is correct
166	Correct	37 ms	13828 KB	Output is correct
167	Correct	72 ms	15252 KB	Output is correct
168	Correct	68 ms	15268 KB	Output is correct
169	Correct	67 ms	15164 KB	Output is correct
170	Correct	67 ms	15032 KB	Output is correct
171	Correct	65 ms	14720 KB	Output is correct
172	Correct	68 ms	15456 KB	Output is correct
173	Correct	128 ms	15344 KB	Output is correct
174	Correct	128 ms	15412 KB	Output is correct
175	Correct	125 ms	15416 KB	Output is correct
176	Correct	112 ms	14904 KB	Output is correct

답안 #594488

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