답안 #1069028

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1069028	2024-08-21T14:41:18 Z	_callmelucian	Global Warming (CEOI18_glo)	C++14	100 / 100	363 ms	22484 KB

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

typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pl;
typedef pair<int,int> pii;
typedef tuple<int,int,int> tt;

#define all(a) a.begin(), a.end()
#define filter(a) a.erase(unique(all(a)), a.end())

const int mn = 4e5 + 5;
int a[mn], dp[mn];

vector<pii> cmp;

int getID (int targ, int p) {
    return lower_bound(all(cmp), make_pair(targ, p)) - cmp.begin();
}

struct IT {
    vector<int> tr;
    IT (int sz) : tr(4 * sz) {}

    void update (int pos, int val, int k, int l, int r) {
        if (pos < l || r < pos) return;
        if (l == r) {
            tr[k] = val;
            return;
        }
        int mid = (l + r) >> 1;
        update(pos, val, 2 * k, l, mid);
        update(pos, val, 2 * k + 1, mid + 1, r);
        tr[k] = max(tr[2 * k], tr[2 * k + 1]);
    }

    int query (int a, int b, int k, int l, int r) {
        if (b < l || r < a) return 0;
        if (a <= l && r <= b) return tr[k];
        int mid = (l + r) >> 1;
        return max(query(a, b, 2 * k, l, mid), query(a, b, 2 * k + 1, mid + 1, r));
    }
} preTree(mn), sfxTree(mn);

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

    int n, x; cin >> n >> x;
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
        cmp.emplace_back(a[i], i);
        cmp.emplace_back(a[i] - x, i);
    }
    sort(all(cmp)); filter(cmp);

    int mx = cmp.size() - 1, ans = 0;
    for (int i = n; i >= 1; i--) {
        dp[i] = sfxTree.query(getID(a[i], INT_MAX), mx, 1, 0, mx) + 1;
        sfxTree.update(getID(a[i], i), dp[i], 1, 0, mx);
    }

    for (int i = 1; i <= n; i++) {
        sfxTree.update(getID(a[i], i), 0, 1, 0, mx);
        dp[i] = preTree.query(0, getID(a[i] - x, 0) - 1, 1, 0, mx) + 1;
        preTree.update(getID(a[i] - x, i), dp[i], 1, 0, mx);
        ans = max(ans, dp[i] + sfxTree.query(getID(a[i] - x, INT_MAX), mx, 1, 0, mx));
    }
    cout << ans;

    return 0;
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	14936 KB	Output is correct
2	Correct	3 ms	14940 KB	Output is correct
3	Correct	3 ms	15056 KB	Output is correct
4	Correct	3 ms	14940 KB	Output is correct
5	Correct	3 ms	14940 KB	Output is correct
6	Correct	3 ms	14940 KB	Output is correct
7	Correct	3 ms	14940 KB	Output is correct
8	Correct	3 ms	14940 KB	Output is correct
9	Correct	2 ms	14984 KB	Output is correct
10	Correct	3 ms	14940 KB	Output is correct
11	Correct	3 ms	14940 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	14936 KB	Output is correct
2	Correct	3 ms	14940 KB	Output is correct
3	Correct	3 ms	15056 KB	Output is correct
4	Correct	3 ms	14940 KB	Output is correct
5	Correct	3 ms	14940 KB	Output is correct
6	Correct	3 ms	14940 KB	Output is correct
7	Correct	3 ms	14940 KB	Output is correct
8	Correct	3 ms	14940 KB	Output is correct
9	Correct	2 ms	14984 KB	Output is correct
10	Correct	3 ms	14940 KB	Output is correct
11	Correct	3 ms	14940 KB	Output is correct
12	Correct	3 ms	14940 KB	Output is correct
13	Correct	3 ms	14836 KB	Output is correct
14	Correct	3 ms	15052 KB	Output is correct
15	Correct	3 ms	14940 KB	Output is correct
16	Correct	2 ms	15056 KB	Output is correct
17	Correct	3 ms	14936 KB	Output is correct
18	Correct	3 ms	14940 KB	Output is correct

Subtask #3
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	14936 KB	Output is correct
2	Correct	3 ms	14940 KB	Output is correct
3	Correct	3 ms	15056 KB	Output is correct
4	Correct	3 ms	14940 KB	Output is correct
5	Correct	3 ms	14940 KB	Output is correct
6	Correct	3 ms	14940 KB	Output is correct
7	Correct	3 ms	14940 KB	Output is correct
8	Correct	3 ms	14940 KB	Output is correct
9	Correct	2 ms	14984 KB	Output is correct
10	Correct	3 ms	14940 KB	Output is correct
11	Correct	3 ms	14940 KB	Output is correct
12	Correct	3 ms	14940 KB	Output is correct
13	Correct	3 ms	14836 KB	Output is correct
14	Correct	3 ms	15052 KB	Output is correct
15	Correct	3 ms	14940 KB	Output is correct
16	Correct	2 ms	15056 KB	Output is correct
17	Correct	3 ms	14936 KB	Output is correct
18	Correct	3 ms	14940 KB	Output is correct
19	Correct	4 ms	14940 KB	Output is correct
20	Correct	3 ms	14940 KB	Output is correct
21	Correct	4 ms	14940 KB	Output is correct
22	Correct	4 ms	14940 KB	Output is correct
23	Correct	3 ms	14940 KB	Output is correct
24	Correct	3 ms	15100 KB	Output is correct
25	Correct	4 ms	14940 KB	Output is correct
26	Correct	4 ms	14940 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	308 ms	22484 KB	Output is correct
2	Correct	310 ms	20692 KB	Output is correct
3	Correct	311 ms	21972 KB	Output is correct
4	Correct	350 ms	20944 KB	Output is correct
5	Correct	152 ms	21880 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	77 ms	16604 KB	Output is correct
2	Correct	92 ms	16856 KB	Output is correct
3	Correct	75 ms	16572 KB	Output is correct
4	Correct	44 ms	16348 KB	Output is correct
5	Correct	3 ms	14940 KB	Output is correct
6	Correct	44 ms	16392 KB	Output is correct
7	Correct	63 ms	16604 KB	Output is correct

Subtask #6
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	156 ms	18132 KB	Output is correct
2	Correct	152 ms	17880 KB	Output is correct
3	Correct	325 ms	20948 KB	Output is correct
4	Correct	164 ms	20180 KB	Output is correct
5	Correct	86 ms	17624 KB	Output is correct
6	Correct	157 ms	20180 KB	Output is correct
7	Correct	160 ms	20692 KB	Output is correct
8	Correct	123 ms	17876 KB	Output is correct

Subtask #7
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	14936 KB	Output is correct
2	Correct	3 ms	14940 KB	Output is correct
3	Correct	3 ms	15056 KB	Output is correct
4	Correct	3 ms	14940 KB	Output is correct
5	Correct	3 ms	14940 KB	Output is correct
6	Correct	3 ms	14940 KB	Output is correct
7	Correct	3 ms	14940 KB	Output is correct
8	Correct	3 ms	14940 KB	Output is correct
9	Correct	2 ms	14984 KB	Output is correct
10	Correct	3 ms	14940 KB	Output is correct
11	Correct	3 ms	14940 KB	Output is correct
12	Correct	3 ms	14940 KB	Output is correct
13	Correct	3 ms	14836 KB	Output is correct
14	Correct	3 ms	15052 KB	Output is correct
15	Correct	3 ms	14940 KB	Output is correct
16	Correct	2 ms	15056 KB	Output is correct
17	Correct	3 ms	14936 KB	Output is correct
18	Correct	3 ms	14940 KB	Output is correct
19	Correct	4 ms	14940 KB	Output is correct
20	Correct	3 ms	14940 KB	Output is correct
21	Correct	4 ms	14940 KB	Output is correct
22	Correct	4 ms	14940 KB	Output is correct
23	Correct	3 ms	14940 KB	Output is correct
24	Correct	3 ms	15100 KB	Output is correct
25	Correct	4 ms	14940 KB	Output is correct
26	Correct	4 ms	14940 KB	Output is correct
27	Correct	308 ms	22484 KB	Output is correct
28	Correct	310 ms	20692 KB	Output is correct
29	Correct	311 ms	21972 KB	Output is correct
30	Correct	350 ms	20944 KB	Output is correct
31	Correct	152 ms	21880 KB	Output is correct
32	Correct	77 ms	16604 KB	Output is correct
33	Correct	92 ms	16856 KB	Output is correct
34	Correct	75 ms	16572 KB	Output is correct
35	Correct	44 ms	16348 KB	Output is correct
36	Correct	3 ms	14940 KB	Output is correct
37	Correct	44 ms	16392 KB	Output is correct
38	Correct	63 ms	16604 KB	Output is correct
39	Correct	156 ms	18132 KB	Output is correct
40	Correct	152 ms	17880 KB	Output is correct
41	Correct	325 ms	20948 KB	Output is correct
42	Correct	164 ms	20180 KB	Output is correct
43	Correct	86 ms	17624 KB	Output is correct
44	Correct	157 ms	20180 KB	Output is correct
45	Correct	160 ms	20692 KB	Output is correct
46	Correct	123 ms	17876 KB	Output is correct
47	Correct	165 ms	17880 KB	Output is correct
48	Correct	176 ms	17880 KB	Output is correct
49	Correct	363 ms	21304 KB	Output is correct
50	Correct	182 ms	21200 KB	Output is correct
51	Correct	152 ms	22480 KB	Output is correct
52	Correct	200 ms	20948 KB	Output is correct
53	Correct	161 ms	20436 KB	Output is correct
54	Correct	164 ms	21968 KB	Output is correct
55	Correct	268 ms	21716 KB	Output is correct

답안 #1069028

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 10.0 / 10.0

Subtask #3 13.0 / 13.0

Subtask #4 10.0 / 10.0

Subtask #5 20.0 / 20.0

Subtask #6 17.0 / 17.0

Subtask #7 25.0 / 25.0

Subtask #1
5.0 / 5.0

Subtask #2
10.0 / 10.0

Subtask #3
13.0 / 13.0

Subtask #4
10.0 / 10.0

Subtask #5
20.0 / 20.0

Subtask #6
17.0 / 17.0

Subtask #7
25.0 / 25.0