Submission #915716

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
915716	2024-01-24T15:26:15 Z	LOLOLO	Event Hopping 2 (JOI21_event2)	C++17	100 / 100	195 ms	42072 KB

event2

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

#define           f     first
#define           s     second
#define           pb    push_back
#define           ep    emplace
#define           eb    emplace_back
#define           lb    lower_bound
#define           ub    upper_bound
#define       all(x)    x.begin(), x.end()
#define      rall(x)    x.rbegin(), x.rend()
#define   uniquev(v)    sort(all(v)), (v).resize(unique(all(v)) - (v).begin())
#define     mem(f,x)    memset(f , x , sizeof(f))
#define        sz(x)    (int)(x).size()
#define  __lcm(a, b)    (1ll * ((a) / __gcd((a), (b))) * (b))
#define          mxx    *max_element
#define          mnn    *min_element
#define    cntbit(x)    __builtin_popcountll(x)
#define       len(x)    (int)(x.length())

const int N = 3e5 + 10;
int sp[N][20], mi[N];

int get(int l, int r) {
    int ans = 0;
    for (int i = 19; i >= 0; i--) {
        if (sp[l][i] <= r) {
            l = sp[l][i];
            ans += (1 << i);
        }
    }

    return ans;
}

int solve() {
    mem(sp, 0x3f);
    mem(mi, 0x3f);

    int n, k;
    cin >> n >> k;

    map <int, int> mp;
    int timer = 1;

    vector <pair <int, int>> save(n);
    for (auto &x : save) {
        cin >> x.f >> x.s;
        mp[x.f], mp[x.s];
    }

    for (auto &x : mp)
        x.s = timer++;

    for (auto &x : save) {
        x.f = mp[x.f], x.s = mp[x.s];
        mi[x.f] = min(mi[x.f], x.s);
    }

    mi[timer + 1] = timer + 1;
    for (int i = timer + 1; i >= 0; i--) {
        mi[i] = min(mi[i], mi[i + 1]);
        sp[i][0] = mi[i];
    }

    for (int j = 1; j < 20; j++) {
        for (int i = 1; i <= timer + 1; i++) {
            sp[i][j] = sp[sp[i][j - 1]][j - 1];
        }
    }

    if (get(1, timer) < k) {
        cout << -1 << '\n';
        return 0;
    }

    set <pair <int, int>> seg;
    seg.insert(make_pair(1, timer));
    int all = get(1, timer), cnt = k;

    for (int i = 0; i < n; i++) {
        if (cnt == 0)
            break;

        int l = save[i].f, r = save[i].s;
        auto it = seg.lower_bound({l, r});

        if (it == seg.end() || (it -> f > l && it != seg.begin())) {
            --it;
        }

        int l1 = it -> f, r1 = it -> s;

        if (l1 <= l && r1 >= r) {
            int nw = 1 + get(l1, l) + get(r, r1) + all - get(l1, r1);
            if (nw >= k) {
                cout << i + 1 << '\n';
                cnt--;
                seg.erase(it);
                seg.insert({l1, l});
                seg.insert({r, r1});
                all = nw;
            }
        }
    }

    return 0;
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    int t = 1;
    //cin >> t;
    while (t--) {
        solve();
        //cout << solve() << '\n';
    }

    return 0;
}

Subtask #1
7.0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	24924 KB	Output is correct
2	Correct	5 ms	24920 KB	Output is correct
3	Correct	6 ms	24920 KB	Output is correct
4	Correct	125 ms	42048 KB	Output is correct
5	Correct	118 ms	41812 KB	Output is correct
6	Correct	114 ms	41552 KB	Output is correct
7	Correct	110 ms	41060 KB	Output is correct
8	Correct	143 ms	42072 KB	Output is correct
9	Correct	123 ms	41808 KB	Output is correct
10	Correct	114 ms	41500 KB	Output is correct
11	Correct	114 ms	41156 KB	Output is correct
12	Correct	101 ms	40016 KB	Output is correct
13	Correct	108 ms	40276 KB	Output is correct
14	Correct	100 ms	39788 KB	Output is correct
15	Correct	92 ms	39440 KB	Output is correct
16	Correct	82 ms	37712 KB	Output is correct
17	Correct	77 ms	37632 KB	Output is correct
18	Correct	78 ms	37728 KB	Output is correct
19	Correct	78 ms	37468 KB	Output is correct
20	Correct	76 ms	37228 KB	Output is correct
21	Correct	74 ms	37200 KB	Output is correct
22	Correct	80 ms	37220 KB	Output is correct
23	Correct	77 ms	36988 KB	Output is correct
24	Correct	78 ms	37128 KB	Output is correct
25	Correct	93 ms	37132 KB	Output is correct
26	Correct	97 ms	37200 KB	Output is correct
27	Correct	95 ms	37204 KB	Output is correct
28	Correct	68 ms	37204 KB	Output is correct
29	Correct	63 ms	36976 KB	Output is correct
30	Correct	67 ms	37204 KB	Output is correct
31	Correct	75 ms	37200 KB	Output is correct
32	Correct	77 ms	37172 KB	Output is correct
33	Correct	95 ms	37116 KB	Output is correct
34	Correct	88 ms	38996 KB	Output is correct
35	Correct	81 ms	38224 KB	Output is correct
36	Correct	71 ms	37716 KB	Output is correct
37	Correct	117 ms	39728 KB	Output is correct
38	Correct	121 ms	39508 KB	Output is correct
39	Correct	107 ms	39504 KB	Output is correct
40	Correct	103 ms	39504 KB	Output is correct
41	Correct	102 ms	39256 KB	Output is correct
42	Correct	69 ms	37108 KB	Output is correct
43	Correct	98 ms	39508 KB	Output is correct
44	Correct	96 ms	39504 KB	Output is correct
45	Correct	96 ms	39436 KB	Output is correct
46	Correct	93 ms	39268 KB	Output is correct

Subtask #2
1.0 / 1.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	24920 KB	Output is correct
2	Correct	6 ms	24920 KB	Output is correct
3	Correct	5 ms	25112 KB	Output is correct
4	Correct	5 ms	24920 KB	Output is correct
5	Correct	6 ms	24924 KB	Output is correct
6	Correct	5 ms	24920 KB	Output is correct
7	Correct	5 ms	24920 KB	Output is correct
8	Correct	5 ms	24920 KB	Output is correct
9	Correct	5 ms	24920 KB	Output is correct
10	Correct	5 ms	24920 KB	Output is correct
11	Correct	6 ms	24924 KB	Output is correct
12	Correct	6 ms	24924 KB	Output is correct
13	Correct	5 ms	24924 KB	Output is correct
14	Correct	5 ms	24924 KB	Output is correct
15	Correct	5 ms	24924 KB	Output is correct
16	Correct	5 ms	24924 KB	Output is correct
17	Correct	5 ms	24924 KB	Output is correct
18	Correct	5 ms	24924 KB	Output is correct
19	Correct	5 ms	24924 KB	Output is correct
20	Correct	6 ms	24924 KB	Output is correct
21	Correct	5 ms	24924 KB	Output is correct
22	Correct	5 ms	24924 KB	Output is correct
23	Correct	5 ms	25084 KB	Output is correct
24	Correct	5 ms	24924 KB	Output is correct
25	Correct	5 ms	24924 KB	Output is correct
26	Correct	5 ms	24924 KB	Output is correct
27	Correct	6 ms	24924 KB	Output is correct

Subtask #3
31.0 / 31.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	24920 KB	Output is correct
2	Correct	6 ms	24920 KB	Output is correct
3	Correct	5 ms	25112 KB	Output is correct
4	Correct	5 ms	24920 KB	Output is correct
5	Correct	6 ms	24924 KB	Output is correct
6	Correct	5 ms	24920 KB	Output is correct
7	Correct	5 ms	24920 KB	Output is correct
8	Correct	5 ms	24920 KB	Output is correct
9	Correct	5 ms	24920 KB	Output is correct
10	Correct	5 ms	24920 KB	Output is correct
11	Correct	6 ms	24924 KB	Output is correct
12	Correct	6 ms	24924 KB	Output is correct
13	Correct	5 ms	24924 KB	Output is correct
14	Correct	5 ms	24924 KB	Output is correct
15	Correct	5 ms	24924 KB	Output is correct
16	Correct	5 ms	24924 KB	Output is correct
17	Correct	5 ms	24924 KB	Output is correct
18	Correct	5 ms	24924 KB	Output is correct
19	Correct	5 ms	24924 KB	Output is correct
20	Correct	6 ms	24924 KB	Output is correct
21	Correct	5 ms	24924 KB	Output is correct
22	Correct	5 ms	24924 KB	Output is correct
23	Correct	5 ms	25084 KB	Output is correct
24	Correct	5 ms	24924 KB	Output is correct
25	Correct	5 ms	24924 KB	Output is correct
26	Correct	5 ms	24924 KB	Output is correct
27	Correct	6 ms	24924 KB	Output is correct
28	Correct	8 ms	25432 KB	Output is correct
29	Correct	8 ms	25436 KB	Output is correct
30	Correct	7 ms	25436 KB	Output is correct
31	Correct	7 ms	25436 KB	Output is correct
32	Correct	7 ms	25436 KB	Output is correct
33	Correct	8 ms	25476 KB	Output is correct
34	Correct	8 ms	25320 KB	Output is correct
35	Correct	9 ms	25528 KB	Output is correct
36	Correct	9 ms	25436 KB	Output is correct
37	Correct	9 ms	25780 KB	Output is correct
38	Correct	7 ms	25436 KB	Output is correct
39	Correct	8 ms	25436 KB	Output is correct
40	Correct	9 ms	25436 KB	Output is correct
41	Correct	9 ms	25352 KB	Output is correct
42	Correct	7 ms	25436 KB	Output is correct
43	Correct	8 ms	25436 KB	Output is correct
44	Correct	8 ms	25436 KB	Output is correct
45	Correct	8 ms	25436 KB	Output is correct
46	Correct	8 ms	25436 KB	Output is correct
47	Correct	7 ms	25436 KB	Output is correct
48	Correct	8 ms	25436 KB	Output is correct
49	Correct	8 ms	25344 KB	Output is correct
50	Correct	7 ms	25436 KB	Output is correct
51	Correct	7 ms	25432 KB	Output is correct
52	Correct	8 ms	25436 KB	Output is correct
53	Correct	7 ms	25388 KB	Output is correct
54	Correct	9 ms	25436 KB	Output is correct
55	Correct	7 ms	25436 KB	Output is correct
56	Correct	7 ms	25432 KB	Output is correct
57	Correct	7 ms	25388 KB	Output is correct
58	Correct	9 ms	25436 KB	Output is correct
59	Correct	8 ms	25360 KB	Output is correct
60	Correct	7 ms	25436 KB	Output is correct
61	Correct	8 ms	25432 KB	Output is correct
62	Correct	7 ms	25436 KB	Output is correct
63	Correct	8 ms	25436 KB	Output is correct
64	Correct	7 ms	25296 KB	Output is correct

Subtask #4
61.0 / 61.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	24924 KB	Output is correct
2	Correct	5 ms	24920 KB	Output is correct
3	Correct	6 ms	24920 KB	Output is correct
4	Correct	125 ms	42048 KB	Output is correct
5	Correct	118 ms	41812 KB	Output is correct
6	Correct	114 ms	41552 KB	Output is correct
7	Correct	110 ms	41060 KB	Output is correct
8	Correct	143 ms	42072 KB	Output is correct
9	Correct	123 ms	41808 KB	Output is correct
10	Correct	114 ms	41500 KB	Output is correct
11	Correct	114 ms	41156 KB	Output is correct
12	Correct	101 ms	40016 KB	Output is correct
13	Correct	108 ms	40276 KB	Output is correct
14	Correct	100 ms	39788 KB	Output is correct
15	Correct	92 ms	39440 KB	Output is correct
16	Correct	82 ms	37712 KB	Output is correct
17	Correct	77 ms	37632 KB	Output is correct
18	Correct	78 ms	37728 KB	Output is correct
19	Correct	78 ms	37468 KB	Output is correct
20	Correct	76 ms	37228 KB	Output is correct
21	Correct	74 ms	37200 KB	Output is correct
22	Correct	80 ms	37220 KB	Output is correct
23	Correct	77 ms	36988 KB	Output is correct
24	Correct	78 ms	37128 KB	Output is correct
25	Correct	93 ms	37132 KB	Output is correct
26	Correct	97 ms	37200 KB	Output is correct
27	Correct	95 ms	37204 KB	Output is correct
28	Correct	68 ms	37204 KB	Output is correct
29	Correct	63 ms	36976 KB	Output is correct
30	Correct	67 ms	37204 KB	Output is correct
31	Correct	75 ms	37200 KB	Output is correct
32	Correct	77 ms	37172 KB	Output is correct
33	Correct	95 ms	37116 KB	Output is correct
34	Correct	88 ms	38996 KB	Output is correct
35	Correct	81 ms	38224 KB	Output is correct
36	Correct	71 ms	37716 KB	Output is correct
37	Correct	117 ms	39728 KB	Output is correct
38	Correct	121 ms	39508 KB	Output is correct
39	Correct	107 ms	39504 KB	Output is correct
40	Correct	103 ms	39504 KB	Output is correct
41	Correct	102 ms	39256 KB	Output is correct
42	Correct	69 ms	37108 KB	Output is correct
43	Correct	98 ms	39508 KB	Output is correct
44	Correct	96 ms	39504 KB	Output is correct
45	Correct	96 ms	39436 KB	Output is correct
46	Correct	93 ms	39268 KB	Output is correct
47	Correct	5 ms	24920 KB	Output is correct
48	Correct	6 ms	24920 KB	Output is correct
49	Correct	5 ms	25112 KB	Output is correct
50	Correct	5 ms	24920 KB	Output is correct
51	Correct	6 ms	24924 KB	Output is correct
52	Correct	5 ms	24920 KB	Output is correct
53	Correct	5 ms	24920 KB	Output is correct
54	Correct	5 ms	24920 KB	Output is correct
55	Correct	5 ms	24920 KB	Output is correct
56	Correct	5 ms	24920 KB	Output is correct
57	Correct	6 ms	24924 KB	Output is correct
58	Correct	6 ms	24924 KB	Output is correct
59	Correct	5 ms	24924 KB	Output is correct
60	Correct	5 ms	24924 KB	Output is correct
61	Correct	5 ms	24924 KB	Output is correct
62	Correct	5 ms	24924 KB	Output is correct
63	Correct	5 ms	24924 KB	Output is correct
64	Correct	5 ms	24924 KB	Output is correct
65	Correct	5 ms	24924 KB	Output is correct
66	Correct	6 ms	24924 KB	Output is correct
67	Correct	5 ms	24924 KB	Output is correct
68	Correct	5 ms	24924 KB	Output is correct
69	Correct	5 ms	25084 KB	Output is correct
70	Correct	5 ms	24924 KB	Output is correct
71	Correct	5 ms	24924 KB	Output is correct
72	Correct	5 ms	24924 KB	Output is correct
73	Correct	6 ms	24924 KB	Output is correct
74	Correct	8 ms	25432 KB	Output is correct
75	Correct	8 ms	25436 KB	Output is correct
76	Correct	7 ms	25436 KB	Output is correct
77	Correct	7 ms	25436 KB	Output is correct
78	Correct	7 ms	25436 KB	Output is correct
79	Correct	8 ms	25476 KB	Output is correct
80	Correct	8 ms	25320 KB	Output is correct
81	Correct	9 ms	25528 KB	Output is correct
82	Correct	9 ms	25436 KB	Output is correct
83	Correct	9 ms	25780 KB	Output is correct
84	Correct	7 ms	25436 KB	Output is correct
85	Correct	8 ms	25436 KB	Output is correct
86	Correct	9 ms	25436 KB	Output is correct
87	Correct	9 ms	25352 KB	Output is correct
88	Correct	7 ms	25436 KB	Output is correct
89	Correct	8 ms	25436 KB	Output is correct
90	Correct	8 ms	25436 KB	Output is correct
91	Correct	8 ms	25436 KB	Output is correct
92	Correct	8 ms	25436 KB	Output is correct
93	Correct	7 ms	25436 KB	Output is correct
94	Correct	8 ms	25436 KB	Output is correct
95	Correct	8 ms	25344 KB	Output is correct
96	Correct	7 ms	25436 KB	Output is correct
97	Correct	7 ms	25432 KB	Output is correct
98	Correct	8 ms	25436 KB	Output is correct
99	Correct	7 ms	25388 KB	Output is correct
100	Correct	9 ms	25436 KB	Output is correct
101	Correct	7 ms	25436 KB	Output is correct
102	Correct	7 ms	25432 KB	Output is correct
103	Correct	7 ms	25388 KB	Output is correct
104	Correct	9 ms	25436 KB	Output is correct
105	Correct	8 ms	25360 KB	Output is correct
106	Correct	7 ms	25436 KB	Output is correct
107	Correct	8 ms	25432 KB	Output is correct
108	Correct	7 ms	25436 KB	Output is correct
109	Correct	8 ms	25436 KB	Output is correct
110	Correct	7 ms	25296 KB	Output is correct
111	Correct	141 ms	37044 KB	Output is correct
112	Correct	177 ms	37404 KB	Output is correct
113	Correct	145 ms	37012 KB	Output is correct
114	Correct	136 ms	37204 KB	Output is correct
115	Correct	141 ms	37204 KB	Output is correct
116	Correct	130 ms	37204 KB	Output is correct
117	Correct	139 ms	37204 KB	Output is correct
118	Correct	195 ms	42068 KB	Output is correct
119	Correct	186 ms	41552 KB	Output is correct
120	Correct	155 ms	39508 KB	Output is correct
121	Correct	118 ms	37048 KB	Output is correct
122	Correct	169 ms	40016 KB	Output is correct
123	Correct	182 ms	40156 KB	Output is correct
124	Correct	157 ms	39416 KB	Output is correct
125	Correct	123 ms	37208 KB	Output is correct
126	Correct	147 ms	38064 KB	Output is correct
127	Correct	145 ms	37668 KB	Output is correct
128	Correct	149 ms	37712 KB	Output is correct
129	Correct	128 ms	37360 KB	Output is correct
130	Correct	149 ms	37204 KB	Output is correct
131	Correct	148 ms	37200 KB	Output is correct
132	Correct	141 ms	37212 KB	Output is correct
133	Correct	148 ms	37000 KB	Output is correct
134	Correct	143 ms	37208 KB	Output is correct
135	Correct	150 ms	37188 KB	Output is correct
136	Correct	142 ms	37204 KB	Output is correct
137	Correct	146 ms	37204 KB	Output is correct
138	Correct	145 ms	37204 KB	Output is correct
139	Correct	144 ms	37172 KB	Output is correct
140	Correct	193 ms	37220 KB	Output is correct
141	Correct	144 ms	37204 KB	Output is correct
142	Correct	117 ms	37576 KB	Output is correct
143	Correct	118 ms	37716 KB	Output is correct
144	Correct	114 ms	37600 KB	Output is correct
145	Correct	104 ms	37684 KB	Output is correct
146	Correct	107 ms	37456 KB	Output is correct
147	Correct	104 ms	37436 KB	Output is correct
148	Correct	102 ms	37540 KB	Output is correct
149	Correct	101 ms	37384 KB	Output is correct
150	Correct	98 ms	37096 KB	Output is correct
151	Correct	100 ms	36688 KB	Output is correct
152	Correct	53 ms	32496 KB	Output is correct
153	Correct	109 ms	37716 KB	Output is correct
154	Correct	111 ms	37460 KB	Output is correct
155	Correct	105 ms	37400 KB	Output is correct
156	Correct	108 ms	37460 KB	Output is correct
157	Correct	103 ms	37156 KB	Output is correct
158	Correct	106 ms	37112 KB	Output is correct
159	Correct	99 ms	36688 KB	Output is correct
160	Correct	62 ms	32468 KB	Output is correct
161	Correct	158 ms	37460 KB	Output is correct
162	Correct	147 ms	37200 KB	Output is correct
163	Correct	158 ms	37312 KB	Output is correct
164	Correct	146 ms	36948 KB	Output is correct
165	Correct	139 ms	36920 KB	Output is correct
166	Correct	98 ms	37164 KB	Output is correct
167	Correct	99 ms	39544 KB	Output is correct
168	Correct	101 ms	39504 KB	Output is correct
169	Correct	109 ms	39544 KB	Output is correct
170	Correct	102 ms	39424 KB	Output is correct
171	Correct	104 ms	38992 KB	Output is correct
172	Correct	127 ms	39792 KB	Output is correct
173	Correct	144 ms	35156 KB	Output is correct
174	Correct	139 ms	35156 KB	Output is correct
175	Correct	133 ms	35088 KB	Output is correct
176	Correct	129 ms	34528 KB	Output is correct

Submission #915716

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