Submission #874261

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
874261	2023-11-16T14:43:43 Z	tsumondai	Art Exhibition (JOI18_art)	C++14	100 / 100	163 ms	21436 KB

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

#define int long long
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define foru(i, l, r) for(int i = l; i <= r; i++)
#define ford(i, r, l) for(int i = r; i >= l; i--)
#define __TIME  (1.0 * clock() / CLOCKS_PER_SEC)

typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<ii, ii> iiii;
 
const int N = 5e5 + 5;
 
const int oo = 1e18, mod = 1e9 + 7;
 
int n, m, k;
vector<ii> arts;

void process() {
	sort(arts.begin(), arts.end());
	int res=-oo, mx=-oo, pref=0;
	foru(i,0,n-1) {
		mx=max(mx, -pref+arts[i].fi);
		res=max(res, (pref+arts[i].se)-arts[i].fi+mx);
		pref+=arts[i].se;
		//cout << mx << ' ' << res << ' ' << pref << '\n';
	}
	cout << res;
    return;
}

signed main() {
    cin.tie(0)->sync_with_stdio(false);
    //freopen(".inp", "r", stdin);
    //freopen(".out", "w", stdout);
    cin >> n;
    foru(i,1,n) {
    	int sz, va;
    	cin >> sz >> va;
    	arts.pb({sz, va});
    }
    process();
    cerr << "Time elapsed: " << __TIME << " s.\n";
    return 0;
}

/*
Xét các trường hợp đặc biệt
Kiểm tra lại input/output
Cố gắng trâu
Lật ngược bài toán
Calm down and get VOI 
Stream of thought:
S=total value
find max of s-(a[max]-a[min]);
first, sort by value?
subtask 1: bitmask
subtask 2: dp
subtask 3: dp w/ data structure
subtask 4: something nlogn?? (dp w/ data struct?)
dq?
*/

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	460 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct

Subtask #2
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	460 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	0 ms	468 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	456 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct

Subtask #3
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	460 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	0 ms	468 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	456 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	2 ms	604 KB	Output is correct
28	Correct	2 ms	604 KB	Output is correct
29	Correct	2 ms	604 KB	Output is correct
30	Correct	2 ms	600 KB	Output is correct
31	Correct	2 ms	608 KB	Output is correct
32	Correct	2 ms	604 KB	Output is correct
33	Correct	2 ms	604 KB	Output is correct
34	Correct	2 ms	604 KB	Output is correct
35	Correct	2 ms	728 KB	Output is correct
36	Correct	2 ms	604 KB	Output is correct
37	Correct	2 ms	604 KB	Output is correct
38	Correct	2 ms	720 KB	Output is correct
39	Correct	2 ms	600 KB	Output is correct
40	Correct	2 ms	608 KB	Output is correct
41	Correct	2 ms	604 KB	Output is correct
42	Correct	2 ms	604 KB	Output is correct
43	Correct	2 ms	604 KB	Output is correct
44	Correct	2 ms	604 KB	Output is correct
45	Correct	2 ms	604 KB	Output is correct
46	Correct	2 ms	608 KB	Output is correct
47	Correct	2 ms	608 KB	Output is correct
48	Correct	2 ms	608 KB	Output is correct
49	Correct	2 ms	608 KB	Output is correct
50	Correct	2 ms	608 KB	Output is correct
51	Correct	2 ms	612 KB	Output is correct

Subtask #4
50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	348 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	460 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	0 ms	348 KB	Output is correct
15	Correct	1 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	1 ms	348 KB	Output is correct
18	Correct	0 ms	468 KB	Output is correct
19	Correct	0 ms	348 KB	Output is correct
20	Correct	0 ms	456 KB	Output is correct
21	Correct	0 ms	348 KB	Output is correct
22	Correct	0 ms	348 KB	Output is correct
23	Correct	0 ms	348 KB	Output is correct
24	Correct	0 ms	348 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Correct	0 ms	348 KB	Output is correct
27	Correct	2 ms	604 KB	Output is correct
28	Correct	2 ms	604 KB	Output is correct
29	Correct	2 ms	604 KB	Output is correct
30	Correct	2 ms	600 KB	Output is correct
31	Correct	2 ms	608 KB	Output is correct
32	Correct	2 ms	604 KB	Output is correct
33	Correct	2 ms	604 KB	Output is correct
34	Correct	2 ms	604 KB	Output is correct
35	Correct	2 ms	728 KB	Output is correct
36	Correct	2 ms	604 KB	Output is correct
37	Correct	2 ms	604 KB	Output is correct
38	Correct	2 ms	720 KB	Output is correct
39	Correct	2 ms	600 KB	Output is correct
40	Correct	2 ms	608 KB	Output is correct
41	Correct	2 ms	604 KB	Output is correct
42	Correct	2 ms	604 KB	Output is correct
43	Correct	2 ms	604 KB	Output is correct
44	Correct	2 ms	604 KB	Output is correct
45	Correct	2 ms	604 KB	Output is correct
46	Correct	2 ms	608 KB	Output is correct
47	Correct	2 ms	608 KB	Output is correct
48	Correct	2 ms	608 KB	Output is correct
49	Correct	2 ms	608 KB	Output is correct
50	Correct	2 ms	608 KB	Output is correct
51	Correct	2 ms	612 KB	Output is correct
52	Correct	139 ms	20920 KB	Output is correct
53	Correct	144 ms	21116 KB	Output is correct
54	Correct	137 ms	21436 KB	Output is correct
55	Correct	135 ms	20924 KB	Output is correct
56	Correct	144 ms	20916 KB	Output is correct
57	Correct	135 ms	20920 KB	Output is correct
58	Correct	134 ms	21180 KB	Output is correct
59	Correct	137 ms	21080 KB	Output is correct
60	Correct	134 ms	21176 KB	Output is correct
61	Correct	163 ms	20944 KB	Output is correct
62	Correct	134 ms	20920 KB	Output is correct
63	Correct	135 ms	21096 KB	Output is correct
64	Correct	147 ms	21144 KB	Output is correct
65	Correct	139 ms	20916 KB	Output is correct
66	Correct	135 ms	21080 KB	Output is correct
67	Correct	140 ms	21084 KB	Output is correct
68	Correct	137 ms	21292 KB	Output is correct

Submission #874261

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