답안 #655166

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
655166	2022-11-03T13:03:47 Z	ParsaS	Global Warming (CEOI18_glo)	C++14	100 / 100	69 ms	6144 KB

// In the name of God
#pragma GCC optimize("O2", "unroll-loops")
#include<bits/stdc++.h>
using namespace std;
#define pb push_back
#define fi first
#define se second
typedef long long ll;
const int N = 2e5 + 5, inf = 2e9 + 5;
int n, x, a[N];
int R[N], L[N];
pair<int, int> p[N];

void solve() {
    cin >> n >> x;
    for (int i = 0; i < n; i++)
        cin >> a[i];
    fill(R, R + N, -inf);
    R[0] = inf;
    for (int i = n - 1; i >= 0; i--) {
        int l = 0, r = N - 1;
        while (r - l > 1) {
            int mid = (l + r) >> 1;
            if (R[mid] > a[i])
                l = mid;
            else
                r = mid;
        }
        p[i] = make_pair(r, R[r]);
        R[r] = a[i];
    }
    int ans = 0;
    fill(L + 1, L + N, inf);
    for (int i = 0; i < n; i++) {
        R[p[i].fi] = p[i].se;

        int j = lower_bound(L, L + N, a[i]) - L;
        L[j] = a[i]; 

        int l = 0, r = N - 1;
        while (r - l > 1) {
            int mid = (l + r) >> 1;
            if (R[mid] + x > a[i])
                l = mid;
            else
                r = mid;
        }
        ans = max(ans, j + l);
    }
    cout << ans << '\n';
}

int main() {
    ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
    solve();
    return 0;
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1876 KB	Output is correct
2	Correct	1 ms	1876 KB	Output is correct
3	Correct	1 ms	1868 KB	Output is correct
4	Correct	1 ms	1864 KB	Output is correct
5	Correct	2 ms	1876 KB	Output is correct
6	Correct	1 ms	1876 KB	Output is correct
7	Correct	1 ms	1868 KB	Output is correct
8	Correct	1 ms	1876 KB	Output is correct
9	Correct	1 ms	1876 KB	Output is correct
10	Correct	1 ms	1876 KB	Output is correct
11	Correct	1 ms	1876 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1876 KB	Output is correct
2	Correct	1 ms	1876 KB	Output is correct
3	Correct	1 ms	1868 KB	Output is correct
4	Correct	1 ms	1864 KB	Output is correct
5	Correct	2 ms	1876 KB	Output is correct
6	Correct	1 ms	1876 KB	Output is correct
7	Correct	1 ms	1868 KB	Output is correct
8	Correct	1 ms	1876 KB	Output is correct
9	Correct	1 ms	1876 KB	Output is correct
10	Correct	1 ms	1876 KB	Output is correct
11	Correct	1 ms	1876 KB	Output is correct
12	Correct	2 ms	1876 KB	Output is correct
13	Correct	1 ms	1876 KB	Output is correct
14	Correct	1 ms	1876 KB	Output is correct
15	Correct	2 ms	1868 KB	Output is correct
16	Correct	1 ms	1876 KB	Output is correct
17	Correct	1 ms	1876 KB	Output is correct
18	Correct	1 ms	1876 KB	Output is correct

Subtask #3
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1876 KB	Output is correct
2	Correct	1 ms	1876 KB	Output is correct
3	Correct	1 ms	1868 KB	Output is correct
4	Correct	1 ms	1864 KB	Output is correct
5	Correct	2 ms	1876 KB	Output is correct
6	Correct	1 ms	1876 KB	Output is correct
7	Correct	1 ms	1868 KB	Output is correct
8	Correct	1 ms	1876 KB	Output is correct
9	Correct	1 ms	1876 KB	Output is correct
10	Correct	1 ms	1876 KB	Output is correct
11	Correct	1 ms	1876 KB	Output is correct
12	Correct	2 ms	1876 KB	Output is correct
13	Correct	1 ms	1876 KB	Output is correct
14	Correct	1 ms	1876 KB	Output is correct
15	Correct	2 ms	1868 KB	Output is correct
16	Correct	1 ms	1876 KB	Output is correct
17	Correct	1 ms	1876 KB	Output is correct
18	Correct	1 ms	1876 KB	Output is correct
19	Correct	2 ms	1876 KB	Output is correct
20	Correct	1 ms	1876 KB	Output is correct
21	Correct	1 ms	1876 KB	Output is correct
22	Correct	2 ms	1876 KB	Output is correct
23	Correct	2 ms	1876 KB	Output is correct
24	Correct	2 ms	1876 KB	Output is correct
25	Correct	2 ms	1876 KB	Output is correct
26	Correct	2 ms	1864 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	69 ms	6136 KB	Output is correct
2	Correct	68 ms	6144 KB	Output is correct
3	Correct	68 ms	6016 KB	Output is correct
4	Correct	69 ms	6068 KB	Output is correct
5	Correct	60 ms	5380 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	18 ms	2900 KB	Output is correct
2	Correct	18 ms	2952 KB	Output is correct
3	Correct	17 ms	2888 KB	Output is correct
4	Correct	16 ms	2768 KB	Output is correct
5	Correct	1 ms	1876 KB	Output is correct
6	Correct	17 ms	2652 KB	Output is correct
7	Correct	17 ms	2900 KB	Output is correct

Subtask #6
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	35 ms	3916 KB	Output is correct
2	Correct	35 ms	4020 KB	Output is correct
3	Correct	68 ms	6140 KB	Output is correct
4	Correct	59 ms	5324 KB	Output is correct
5	Correct	29 ms	3540 KB	Output is correct
6	Correct	50 ms	5280 KB	Output is correct
7	Correct	56 ms	5956 KB	Output is correct
8	Correct	30 ms	3916 KB	Output is correct

Subtask #7
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1876 KB	Output is correct
2	Correct	1 ms	1876 KB	Output is correct
3	Correct	1 ms	1868 KB	Output is correct
4	Correct	1 ms	1864 KB	Output is correct
5	Correct	2 ms	1876 KB	Output is correct
6	Correct	1 ms	1876 KB	Output is correct
7	Correct	1 ms	1868 KB	Output is correct
8	Correct	1 ms	1876 KB	Output is correct
9	Correct	1 ms	1876 KB	Output is correct
10	Correct	1 ms	1876 KB	Output is correct
11	Correct	1 ms	1876 KB	Output is correct
12	Correct	2 ms	1876 KB	Output is correct
13	Correct	1 ms	1876 KB	Output is correct
14	Correct	1 ms	1876 KB	Output is correct
15	Correct	2 ms	1868 KB	Output is correct
16	Correct	1 ms	1876 KB	Output is correct
17	Correct	1 ms	1876 KB	Output is correct
18	Correct	1 ms	1876 KB	Output is correct
19	Correct	2 ms	1876 KB	Output is correct
20	Correct	1 ms	1876 KB	Output is correct
21	Correct	1 ms	1876 KB	Output is correct
22	Correct	2 ms	1876 KB	Output is correct
23	Correct	2 ms	1876 KB	Output is correct
24	Correct	2 ms	1876 KB	Output is correct
25	Correct	2 ms	1876 KB	Output is correct
26	Correct	2 ms	1864 KB	Output is correct
27	Correct	69 ms	6136 KB	Output is correct
28	Correct	68 ms	6144 KB	Output is correct
29	Correct	68 ms	6016 KB	Output is correct
30	Correct	69 ms	6068 KB	Output is correct
31	Correct	60 ms	5380 KB	Output is correct
32	Correct	18 ms	2900 KB	Output is correct
33	Correct	18 ms	2952 KB	Output is correct
34	Correct	17 ms	2888 KB	Output is correct
35	Correct	16 ms	2768 KB	Output is correct
36	Correct	1 ms	1876 KB	Output is correct
37	Correct	17 ms	2652 KB	Output is correct
38	Correct	17 ms	2900 KB	Output is correct
39	Correct	35 ms	3916 KB	Output is correct
40	Correct	35 ms	4020 KB	Output is correct
41	Correct	68 ms	6140 KB	Output is correct
42	Correct	59 ms	5324 KB	Output is correct
43	Correct	29 ms	3540 KB	Output is correct
44	Correct	50 ms	5280 KB	Output is correct
45	Correct	56 ms	5956 KB	Output is correct
46	Correct	30 ms	3916 KB	Output is correct
47	Correct	33 ms	3928 KB	Output is correct
48	Correct	34 ms	3916 KB	Output is correct
49	Correct	65 ms	6072 KB	Output is correct
50	Correct	58 ms	5372 KB	Output is correct
51	Correct	46 ms	4420 KB	Output is correct
52	Correct	58 ms	5444 KB	Output is correct
53	Correct	56 ms	5384 KB	Output is correct
54	Correct	57 ms	6092 KB	Output is correct
55	Correct	59 ms	6080 KB	Output is correct

답안 #655166

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