Submission #162193

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
162193	2019-11-06T23:42:34 Z	Yojahuang	Art Exhibition (JOI18_art)	C++14	100 / 100	325 ms	53432 KB

#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using pii = pair<ll,ll>;

const int MAXN = 500005;

vector<pii> G;
ll DP[2][MAXN];
bool vis[2][MAXN];
int n;

ll dp(int st, int id) {
	if(id >= n) return 0;
	else if(vis[st][id]) return DP[st][id];
	
	vis[st][id] = true;
	if(st == 0) {
		DP[st][id] = max(G[id].second - (G[id].first - G[id-1].first),G[id].second - (G[id].first - G[id-1].first) + dp(0,id+1));
	}
	else {
		DP[st][id] = max(G[id].second, G[id].second + dp(0,id+1));
	}
	return DP[st][id];
} 

int main(){
	ios::sync_with_stdio(0),cin.tie(0);
	ll a, b;
	while (cin >> n) {
		G.clear();
		memset(vis, 0, sizeof(vis));
		for (int i = 0; i < n; ++i) {
			cin >> a >> b;
			G.push_back(make_pair(a,b));
		}
		
		sort(G.begin(), G.end());
		ll res = G[0].second;
		
		for (int i = 0; i < n; ++i) {
			res = max(res, dp(1,i));
		}
		
		cout << res << '\n';
	}
	return 0;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	1400 KB	Output is correct
2	Correct	3 ms	1400 KB	Output is correct
3	Correct	3 ms	1272 KB	Output is correct
4	Correct	3 ms	1312 KB	Output is correct
5	Correct	3 ms	1272 KB	Output is correct
6	Correct	3 ms	1400 KB	Output is correct
7	Correct	3 ms	1272 KB	Output is correct
8	Correct	3 ms	1400 KB	Output is correct
9	Correct	3 ms	1272 KB	Output is correct
10	Correct	3 ms	1400 KB	Output is correct
11	Correct	3 ms	1400 KB	Output is correct

Subtask #2
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	1400 KB	Output is correct
2	Correct	3 ms	1400 KB	Output is correct
3	Correct	3 ms	1272 KB	Output is correct
4	Correct	3 ms	1312 KB	Output is correct
5	Correct	3 ms	1272 KB	Output is correct
6	Correct	3 ms	1400 KB	Output is correct
7	Correct	3 ms	1272 KB	Output is correct
8	Correct	3 ms	1400 KB	Output is correct
9	Correct	3 ms	1272 KB	Output is correct
10	Correct	3 ms	1400 KB	Output is correct
11	Correct	3 ms	1400 KB	Output is correct
12	Correct	3 ms	1400 KB	Output is correct
13	Correct	3 ms	1400 KB	Output is correct
14	Correct	3 ms	1404 KB	Output is correct
15	Correct	3 ms	1400 KB	Output is correct
16	Correct	3 ms	1400 KB	Output is correct
17	Correct	3 ms	1400 KB	Output is correct
18	Correct	3 ms	1400 KB	Output is correct
19	Correct	3 ms	1404 KB	Output is correct
20	Correct	3 ms	1400 KB	Output is correct
21	Correct	3 ms	1400 KB	Output is correct
22	Correct	3 ms	1400 KB	Output is correct
23	Correct	3 ms	1400 KB	Output is correct
24	Correct	3 ms	1400 KB	Output is correct
25	Correct	10 ms	1400 KB	Output is correct
26	Correct	3 ms	1400 KB	Output is correct

Subtask #3
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	1400 KB	Output is correct
2	Correct	3 ms	1400 KB	Output is correct
3	Correct	3 ms	1272 KB	Output is correct
4	Correct	3 ms	1312 KB	Output is correct
5	Correct	3 ms	1272 KB	Output is correct
6	Correct	3 ms	1400 KB	Output is correct
7	Correct	3 ms	1272 KB	Output is correct
8	Correct	3 ms	1400 KB	Output is correct
9	Correct	3 ms	1272 KB	Output is correct
10	Correct	3 ms	1400 KB	Output is correct
11	Correct	3 ms	1400 KB	Output is correct
12	Correct	3 ms	1400 KB	Output is correct
13	Correct	3 ms	1400 KB	Output is correct
14	Correct	3 ms	1404 KB	Output is correct
15	Correct	3 ms	1400 KB	Output is correct
16	Correct	3 ms	1400 KB	Output is correct
17	Correct	3 ms	1400 KB	Output is correct
18	Correct	3 ms	1400 KB	Output is correct
19	Correct	3 ms	1404 KB	Output is correct
20	Correct	3 ms	1400 KB	Output is correct
21	Correct	3 ms	1400 KB	Output is correct
22	Correct	3 ms	1400 KB	Output is correct
23	Correct	3 ms	1400 KB	Output is correct
24	Correct	3 ms	1400 KB	Output is correct
25	Correct	10 ms	1400 KB	Output is correct
26	Correct	3 ms	1400 KB	Output is correct
27	Correct	6 ms	1912 KB	Output is correct
28	Correct	6 ms	2040 KB	Output is correct
29	Correct	6 ms	1912 KB	Output is correct
30	Correct	6 ms	1912 KB	Output is correct
31	Correct	6 ms	2040 KB	Output is correct
32	Correct	6 ms	2040 KB	Output is correct
33	Correct	6 ms	1912 KB	Output is correct
34	Correct	6 ms	1912 KB	Output is correct
35	Correct	6 ms	2040 KB	Output is correct
36	Correct	6 ms	2040 KB	Output is correct
37	Correct	6 ms	2040 KB	Output is correct
38	Correct	6 ms	1912 KB	Output is correct
39	Correct	6 ms	1916 KB	Output is correct
40	Correct	6 ms	2040 KB	Output is correct
41	Correct	6 ms	2040 KB	Output is correct
42	Correct	6 ms	1912 KB	Output is correct
43	Correct	6 ms	2040 KB	Output is correct
44	Correct	6 ms	2040 KB	Output is correct
45	Correct	6 ms	1980 KB	Output is correct
46	Correct	5 ms	2040 KB	Output is correct
47	Correct	6 ms	1912 KB	Output is correct
48	Correct	6 ms	2040 KB	Output is correct
49	Correct	6 ms	2040 KB	Output is correct
50	Correct	6 ms	1960 KB	Output is correct
51	Correct	7 ms	2040 KB	Output is correct

Subtask #4
50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	1400 KB	Output is correct
2	Correct	3 ms	1400 KB	Output is correct
3	Correct	3 ms	1272 KB	Output is correct
4	Correct	3 ms	1312 KB	Output is correct
5	Correct	3 ms	1272 KB	Output is correct
6	Correct	3 ms	1400 KB	Output is correct
7	Correct	3 ms	1272 KB	Output is correct
8	Correct	3 ms	1400 KB	Output is correct
9	Correct	3 ms	1272 KB	Output is correct
10	Correct	3 ms	1400 KB	Output is correct
11	Correct	3 ms	1400 KB	Output is correct
12	Correct	3 ms	1400 KB	Output is correct
13	Correct	3 ms	1400 KB	Output is correct
14	Correct	3 ms	1404 KB	Output is correct
15	Correct	3 ms	1400 KB	Output is correct
16	Correct	3 ms	1400 KB	Output is correct
17	Correct	3 ms	1400 KB	Output is correct
18	Correct	3 ms	1400 KB	Output is correct
19	Correct	3 ms	1404 KB	Output is correct
20	Correct	3 ms	1400 KB	Output is correct
21	Correct	3 ms	1400 KB	Output is correct
22	Correct	3 ms	1400 KB	Output is correct
23	Correct	3 ms	1400 KB	Output is correct
24	Correct	3 ms	1400 KB	Output is correct
25	Correct	10 ms	1400 KB	Output is correct
26	Correct	3 ms	1400 KB	Output is correct
27	Correct	6 ms	1912 KB	Output is correct
28	Correct	6 ms	2040 KB	Output is correct
29	Correct	6 ms	1912 KB	Output is correct
30	Correct	6 ms	1912 KB	Output is correct
31	Correct	6 ms	2040 KB	Output is correct
32	Correct	6 ms	2040 KB	Output is correct
33	Correct	6 ms	1912 KB	Output is correct
34	Correct	6 ms	1912 KB	Output is correct
35	Correct	6 ms	2040 KB	Output is correct
36	Correct	6 ms	2040 KB	Output is correct
37	Correct	6 ms	2040 KB	Output is correct
38	Correct	6 ms	1912 KB	Output is correct
39	Correct	6 ms	1916 KB	Output is correct
40	Correct	6 ms	2040 KB	Output is correct
41	Correct	6 ms	2040 KB	Output is correct
42	Correct	6 ms	1912 KB	Output is correct
43	Correct	6 ms	2040 KB	Output is correct
44	Correct	6 ms	2040 KB	Output is correct
45	Correct	6 ms	1980 KB	Output is correct
46	Correct	5 ms	2040 KB	Output is correct
47	Correct	6 ms	1912 KB	Output is correct
48	Correct	6 ms	2040 KB	Output is correct
49	Correct	6 ms	2040 KB	Output is correct
50	Correct	6 ms	1960 KB	Output is correct
51	Correct	7 ms	2040 KB	Output is correct
52	Correct	309 ms	53388 KB	Output is correct
53	Correct	298 ms	53288 KB	Output is correct
54	Correct	296 ms	53316 KB	Output is correct
55	Correct	302 ms	53204 KB	Output is correct
56	Correct	298 ms	53296 KB	Output is correct
57	Correct	295 ms	53332 KB	Output is correct
58	Correct	301 ms	53304 KB	Output is correct
59	Correct	295 ms	53328 KB	Output is correct
60	Correct	295 ms	53204 KB	Output is correct
61	Correct	294 ms	53292 KB	Output is correct
62	Correct	293 ms	53280 KB	Output is correct
63	Correct	292 ms	53336 KB	Output is correct
64	Correct	293 ms	53380 KB	Output is correct
65	Correct	304 ms	53204 KB	Output is correct
66	Correct	290 ms	53204 KB	Output is correct
67	Correct	325 ms	53432 KB	Output is correct
68	Correct	294 ms	53336 KB	Output is correct

Submission #162193

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