답안 #804544

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
804544	2023-08-03T09:42:18 Z	Valaki2	Global Warming (CEOI18_glo)	C++14	100 / 100	63 ms	7792 KB

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

#define int long long
#define pb push_back

const int maxn = 2e5;

int n, x;
int v[1 + maxn];
int pref[1 + maxn], suff[1 + maxn];

void solve() {
    cin >> n >> x;
    for(int i = 1; i <= n; i++) {
        cin >> v[i];
    }
    vector<int> d;
    for(int i = 1; i <= n; i++) {
        auto other_it = lower_bound(d.begin(), d.end(), v[i] + x);
        pref[i] = other_it - d.begin();
        auto it = lower_bound(d.begin(), d.end(), v[i]);
        if(it == d.end()) {
            d.pb(v[i]);
        } else {
            *it = min(*it, v[i]);
        }
    }
    d.clear();
    for(int i = 1; i <= n; i++) {
        v[i] = -v[i];
    }
    for(int i = n; i >= 1; i--) {
        auto other_it = lower_bound(d.begin(), d.end(), v[i]);
        suff[i] = other_it - d.begin();
        auto it = lower_bound(d.begin(), d.end(), v[i]);
        if(it == d.end()) {
            d.pb(v[i]);
        } else {
            *it = min(*it, v[i]);
        }
    }
    int ans = 0;
    for(int i = 1; i <= n; i++) {
        ans = max(ans, pref[i] + suff[i] + 1);
    }
    cout << ans << "\n";
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    solve();
    return 0;
}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	324 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	324 KB	Output is correct
4	Correct	1 ms	328 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	0 ms	340 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	0 ms	340 KB	Output is correct

Subtask #2
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	324 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	324 KB	Output is correct
4	Correct	1 ms	328 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	0 ms	340 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	0 ms	340 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	256 KB	Output is correct
18	Correct	0 ms	324 KB	Output is correct

Subtask #3
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	324 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	324 KB	Output is correct
4	Correct	1 ms	328 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	0 ms	340 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	0 ms	340 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	256 KB	Output is correct
18	Correct	0 ms	324 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	328 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	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	63 ms	6836 KB	Output is correct
2	Correct	54 ms	6824 KB	Output is correct
3	Correct	54 ms	6920 KB	Output is correct
4	Correct	55 ms	6924 KB	Output is correct
5	Correct	27 ms	6996 KB	Output is correct

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	14 ms	2008 KB	Output is correct
2	Correct	13 ms	1956 KB	Output is correct
3	Correct	14 ms	2016 KB	Output is correct
4	Correct	7 ms	2032 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	7 ms	2136 KB	Output is correct
7	Correct	10 ms	1912 KB	Output is correct

Subtask #6
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	26 ms	3576 KB	Output is correct
2	Correct	24 ms	3548 KB	Output is correct
3	Correct	54 ms	6864 KB	Output is correct
4	Correct	27 ms	7096 KB	Output is correct
5	Correct	13 ms	3796 KB	Output is correct
6	Correct	23 ms	6796 KB	Output is correct
7	Correct	28 ms	7500 KB	Output is correct
8	Correct	20 ms	3660 KB	Output is correct

Subtask #7
25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	324 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	324 KB	Output is correct
4	Correct	1 ms	328 KB	Output is correct
5	Correct	0 ms	340 KB	Output is correct
6	Correct	0 ms	340 KB	Output is correct
7	Correct	0 ms	340 KB	Output is correct
8	Correct	0 ms	340 KB	Output is correct
9	Correct	0 ms	340 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	0 ms	340 KB	Output is correct
12	Correct	0 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	256 KB	Output is correct
18	Correct	0 ms	324 KB	Output is correct
19	Correct	1 ms	340 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	1 ms	340 KB	Output is correct
22	Correct	1 ms	328 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	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	63 ms	6836 KB	Output is correct
28	Correct	54 ms	6824 KB	Output is correct
29	Correct	54 ms	6920 KB	Output is correct
30	Correct	55 ms	6924 KB	Output is correct
31	Correct	27 ms	6996 KB	Output is correct
32	Correct	14 ms	2008 KB	Output is correct
33	Correct	13 ms	1956 KB	Output is correct
34	Correct	14 ms	2016 KB	Output is correct
35	Correct	7 ms	2032 KB	Output is correct
36	Correct	1 ms	340 KB	Output is correct
37	Correct	7 ms	2136 KB	Output is correct
38	Correct	10 ms	1912 KB	Output is correct
39	Correct	26 ms	3576 KB	Output is correct
40	Correct	24 ms	3548 KB	Output is correct
41	Correct	54 ms	6864 KB	Output is correct
42	Correct	27 ms	7096 KB	Output is correct
43	Correct	13 ms	3796 KB	Output is correct
44	Correct	23 ms	6796 KB	Output is correct
45	Correct	28 ms	7500 KB	Output is correct
46	Correct	20 ms	3660 KB	Output is correct
47	Correct	29 ms	3652 KB	Output is correct
48	Correct	32 ms	3548 KB	Output is correct
49	Correct	55 ms	6932 KB	Output is correct
50	Correct	29 ms	7068 KB	Output is correct
51	Correct	28 ms	5628 KB	Output is correct
52	Correct	35 ms	7084 KB	Output is correct
53	Correct	33 ms	7124 KB	Output is correct
54	Correct	34 ms	7792 KB	Output is correct
55	Correct	42 ms	6900 KB	Output is correct

답안 #804544

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