답안 #880407

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
880407	2023-11-29T11:03:23 Z	frostray8653	Art Exhibition (JOI18_art)	C++17	100 / 100	159 ms	20060 KB

#include <bits/stdc++.h>
#define int long long
#define IO ios::sync_with_stdio(0), cin.tie(0)
#define FOR(i, a, b) for (int i = a; i <= b; i++)
using namespace std;
using pii = pair<int, int>;
void dbg() {;}
template<class T, class ...U>
void dbg(T a, U ...b) { cout << a << " "; dbg(b...); }
void ent() { cout << "\n"; }
const int INF = 1e17;
const int N = 500005;
pii a[N];
int pre[N];
int bef[N], bck[N];

signed main() {
    IO;
    
    int n;
    cin >> n;
    FOR(i, 1, n) cin >> a[i].first >> a[i].second;
    sort(a + 1, a + n + 1, [&](pii p, pii q) {
        return p.first < q.first;
    });
    
    FOR(i, 1, n)
        pre[i] = pre[i - 1] + a[i].second;

    bef[0] = -INF;
    for (int i = 1; i <= n; i++) {
        bef[i] = a[i].first - pre[i - 1];
        bef[i] = max(bef[i], bef[i - 1]);
    }
    bck[n + 1] = -INF;
    for (int i = n; i >= 1; i--) {
        bck[i] = pre[i] - a[i].first;
        bck[i] = max(bck[i], bck[i + 1]);
    }
    int ans = -INF;
    for (int i = 1; i <= n; i++)
        ans = max(ans, bef[i] + bck[i]);

    cout << ans << "\n";

    return 0;
}

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	4440 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4444 KB	Output is correct
5	Correct	1 ms	4468 KB	Output is correct
6	Correct	1 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct

Subtask #2
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	4440 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4444 KB	Output is correct
5	Correct	1 ms	4468 KB	Output is correct
6	Correct	1 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct
12	Correct	1 ms	4444 KB	Output is correct
13	Correct	1 ms	4580 KB	Output is correct
14	Correct	1 ms	4444 KB	Output is correct
15	Correct	1 ms	4440 KB	Output is correct
16	Correct	1 ms	4444 KB	Output is correct
17	Correct	1 ms	4444 KB	Output is correct
18	Correct	1 ms	4444 KB	Output is correct
19	Correct	1 ms	4444 KB	Output is correct
20	Correct	1 ms	4444 KB	Output is correct
21	Correct	1 ms	4444 KB	Output is correct
22	Correct	1 ms	4444 KB	Output is correct
23	Correct	1 ms	4444 KB	Output is correct
24	Correct	1 ms	4444 KB	Output is correct
25	Correct	1 ms	4440 KB	Output is correct
26	Correct	1 ms	4444 KB	Output is correct

Subtask #3
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	4440 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4444 KB	Output is correct
5	Correct	1 ms	4468 KB	Output is correct
6	Correct	1 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct
12	Correct	1 ms	4444 KB	Output is correct
13	Correct	1 ms	4580 KB	Output is correct
14	Correct	1 ms	4444 KB	Output is correct
15	Correct	1 ms	4440 KB	Output is correct
16	Correct	1 ms	4444 KB	Output is correct
17	Correct	1 ms	4444 KB	Output is correct
18	Correct	1 ms	4444 KB	Output is correct
19	Correct	1 ms	4444 KB	Output is correct
20	Correct	1 ms	4444 KB	Output is correct
21	Correct	1 ms	4444 KB	Output is correct
22	Correct	1 ms	4444 KB	Output is correct
23	Correct	1 ms	4444 KB	Output is correct
24	Correct	1 ms	4444 KB	Output is correct
25	Correct	1 ms	4440 KB	Output is correct
26	Correct	1 ms	4444 KB	Output is correct
27	Correct	2 ms	4444 KB	Output is correct
28	Correct	2 ms	4444 KB	Output is correct
29	Correct	2 ms	4444 KB	Output is correct
30	Correct	2 ms	4444 KB	Output is correct
31	Correct	2 ms	4444 KB	Output is correct
32	Correct	2 ms	4444 KB	Output is correct
33	Correct	2 ms	4444 KB	Output is correct
34	Correct	2 ms	4612 KB	Output is correct
35	Correct	2 ms	4444 KB	Output is correct
36	Correct	2 ms	4444 KB	Output is correct
37	Correct	2 ms	4444 KB	Output is correct
38	Correct	2 ms	4444 KB	Output is correct
39	Correct	2 ms	4444 KB	Output is correct
40	Correct	2 ms	4444 KB	Output is correct
41	Correct	2 ms	4444 KB	Output is correct
42	Correct	2 ms	4444 KB	Output is correct
43	Correct	2 ms	4444 KB	Output is correct
44	Correct	2 ms	4564 KB	Output is correct
45	Correct	2 ms	4444 KB	Output is correct
46	Correct	2 ms	4448 KB	Output is correct
47	Correct	2 ms	4448 KB	Output is correct
48	Correct	3 ms	4448 KB	Output is correct
49	Correct	2 ms	4448 KB	Output is correct
50	Correct	2 ms	4564 KB	Output is correct
51	Correct	2 ms	4448 KB	Output is correct

Subtask #4
50.0 / 50.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	4440 KB	Output is correct
2	Correct	1 ms	4444 KB	Output is correct
3	Correct	1 ms	4444 KB	Output is correct
4	Correct	1 ms	4444 KB	Output is correct
5	Correct	1 ms	4468 KB	Output is correct
6	Correct	1 ms	4444 KB	Output is correct
7	Correct	1 ms	4444 KB	Output is correct
8	Correct	1 ms	4444 KB	Output is correct
9	Correct	1 ms	4444 KB	Output is correct
10	Correct	1 ms	4444 KB	Output is correct
11	Correct	1 ms	4444 KB	Output is correct
12	Correct	1 ms	4444 KB	Output is correct
13	Correct	1 ms	4580 KB	Output is correct
14	Correct	1 ms	4444 KB	Output is correct
15	Correct	1 ms	4440 KB	Output is correct
16	Correct	1 ms	4444 KB	Output is correct
17	Correct	1 ms	4444 KB	Output is correct
18	Correct	1 ms	4444 KB	Output is correct
19	Correct	1 ms	4444 KB	Output is correct
20	Correct	1 ms	4444 KB	Output is correct
21	Correct	1 ms	4444 KB	Output is correct
22	Correct	1 ms	4444 KB	Output is correct
23	Correct	1 ms	4444 KB	Output is correct
24	Correct	1 ms	4444 KB	Output is correct
25	Correct	1 ms	4440 KB	Output is correct
26	Correct	1 ms	4444 KB	Output is correct
27	Correct	2 ms	4444 KB	Output is correct
28	Correct	2 ms	4444 KB	Output is correct
29	Correct	2 ms	4444 KB	Output is correct
30	Correct	2 ms	4444 KB	Output is correct
31	Correct	2 ms	4444 KB	Output is correct
32	Correct	2 ms	4444 KB	Output is correct
33	Correct	2 ms	4444 KB	Output is correct
34	Correct	2 ms	4612 KB	Output is correct
35	Correct	2 ms	4444 KB	Output is correct
36	Correct	2 ms	4444 KB	Output is correct
37	Correct	2 ms	4444 KB	Output is correct
38	Correct	2 ms	4444 KB	Output is correct
39	Correct	2 ms	4444 KB	Output is correct
40	Correct	2 ms	4444 KB	Output is correct
41	Correct	2 ms	4444 KB	Output is correct
42	Correct	2 ms	4444 KB	Output is correct
43	Correct	2 ms	4444 KB	Output is correct
44	Correct	2 ms	4564 KB	Output is correct
45	Correct	2 ms	4444 KB	Output is correct
46	Correct	2 ms	4448 KB	Output is correct
47	Correct	2 ms	4448 KB	Output is correct
48	Correct	3 ms	4448 KB	Output is correct
49	Correct	2 ms	4448 KB	Output is correct
50	Correct	2 ms	4564 KB	Output is correct
51	Correct	2 ms	4448 KB	Output is correct
52	Correct	130 ms	20060 KB	Output is correct
53	Correct	130 ms	19792 KB	Output is correct
54	Correct	124 ms	19796 KB	Output is correct
55	Correct	125 ms	19908 KB	Output is correct
56	Correct	146 ms	20004 KB	Output is correct
57	Correct	125 ms	19792 KB	Output is correct
58	Correct	124 ms	19792 KB	Output is correct
59	Correct	159 ms	19908 KB	Output is correct
60	Correct	122 ms	19912 KB	Output is correct
61	Correct	125 ms	19796 KB	Output is correct
62	Correct	123 ms	19796 KB	Output is correct
63	Correct	130 ms	19804 KB	Output is correct
64	Correct	125 ms	19792 KB	Output is correct
65	Correct	153 ms	19912 KB	Output is correct
66	Correct	125 ms	19792 KB	Output is correct
67	Correct	125 ms	19916 KB	Output is correct
68	Correct	126 ms	19804 KB	Output is correct

답안 #880407

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 20.0 / 20.0

Subtask #3 20.0 / 20.0

Subtask #4 50.0 / 50.0

Subtask #1
10.0 / 10.0

Subtask #2
20.0 / 20.0

Subtask #3
20.0 / 20.0

Subtask #4
50.0 / 50.0