Submission #471285

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
471285	2021-09-08T08:10:04 Z	IvnF	Art Exhibition (JOI18_art)	C++14	50 / 100	295 ms	202372 KB

art

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define ull unsigned long long
#define fi first
#define se second
#define ld long double
ll n, dp[5005][5005], pref[5005];
pair<ll, ll>arr[5005];

ll solve(ll l, ll r){
	if(l > r) return 0;
	if(dp[l][r]!=-1) return dp[l][r];
	ll sums=(pref[r]-pref[l-1])-(arr[r].fi-arr[l].fi);
	ll ans=sums;
	ans=max(ans, solve(l+1, r));
	ans=max(ans, solve(l, r-1));
	return dp[l][r]=ans;
}

int main(){
	ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	cin >> n;
	memset(dp, -1, sizeof dp);
	for(int i=1;i<=n;++i){
		cin >> arr[i].fi >> arr[i].se;
	}
	sort(arr+1, arr+1+n);
	for(int i=1;i<=n;++i) pref[i]=pref[i-1]+arr[i].se;
	cout << solve(1, n) << '\n';
}

Subtask #1

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	89 ms	196400 KB	Output is correct
2	Correct	95 ms	196320 KB	Output is correct
3	Correct	90 ms	196356 KB	Output is correct
4	Correct	89 ms	196292 KB	Output is correct
5	Correct	91 ms	196388 KB	Output is correct
6	Correct	91 ms	196276 KB	Output is correct
7	Correct	96 ms	196292 KB	Output is correct
8	Correct	89 ms	196384 KB	Output is correct
9	Correct	89 ms	196424 KB	Output is correct
10	Correct	91 ms	196328 KB	Output is correct
11	Correct	88 ms	196288 KB	Output is correct

Subtask #2

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	89 ms	196400 KB	Output is correct
2	Correct	95 ms	196320 KB	Output is correct
3	Correct	90 ms	196356 KB	Output is correct
4	Correct	89 ms	196292 KB	Output is correct
5	Correct	91 ms	196388 KB	Output is correct
6	Correct	91 ms	196276 KB	Output is correct
7	Correct	96 ms	196292 KB	Output is correct
8	Correct	89 ms	196384 KB	Output is correct
9	Correct	89 ms	196424 KB	Output is correct
10	Correct	91 ms	196328 KB	Output is correct
11	Correct	88 ms	196288 KB	Output is correct
12	Correct	88 ms	196292 KB	Output is correct
13	Correct	89 ms	196384 KB	Output is correct
14	Correct	92 ms	196384 KB	Output is correct
15	Correct	87 ms	196356 KB	Output is correct
16	Correct	90 ms	196420 KB	Output is correct
17	Correct	89 ms	196400 KB	Output is correct
18	Correct	89 ms	196320 KB	Output is correct
19	Correct	88 ms	196420 KB	Output is correct
20	Correct	88 ms	196332 KB	Output is correct
21	Correct	98 ms	196324 KB	Output is correct
22	Correct	103 ms	196292 KB	Output is correct
23	Correct	99 ms	196404 KB	Output is correct
24	Correct	89 ms	196428 KB	Output is correct
25	Correct	89 ms	196328 KB	Output is correct
26	Correct	89 ms	196404 KB	Output is correct

Subtask #3

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	89 ms	196400 KB	Output is correct
2	Correct	95 ms	196320 KB	Output is correct
3	Correct	90 ms	196356 KB	Output is correct
4	Correct	89 ms	196292 KB	Output is correct
5	Correct	91 ms	196388 KB	Output is correct
6	Correct	91 ms	196276 KB	Output is correct
7	Correct	96 ms	196292 KB	Output is correct
8	Correct	89 ms	196384 KB	Output is correct
9	Correct	89 ms	196424 KB	Output is correct
10	Correct	91 ms	196328 KB	Output is correct
11	Correct	88 ms	196288 KB	Output is correct
12	Correct	88 ms	196292 KB	Output is correct
13	Correct	89 ms	196384 KB	Output is correct
14	Correct	92 ms	196384 KB	Output is correct
15	Correct	87 ms	196356 KB	Output is correct
16	Correct	90 ms	196420 KB	Output is correct
17	Correct	89 ms	196400 KB	Output is correct
18	Correct	89 ms	196320 KB	Output is correct
19	Correct	88 ms	196420 KB	Output is correct
20	Correct	88 ms	196332 KB	Output is correct
21	Correct	98 ms	196324 KB	Output is correct
22	Correct	103 ms	196292 KB	Output is correct
23	Correct	99 ms	196404 KB	Output is correct
24	Correct	89 ms	196428 KB	Output is correct
25	Correct	89 ms	196328 KB	Output is correct
26	Correct	89 ms	196404 KB	Output is correct
27	Correct	204 ms	196804 KB	Output is correct
28	Correct	200 ms	196860 KB	Output is correct
29	Correct	204 ms	196852 KB	Output is correct
30	Correct	203 ms	196860 KB	Output is correct
31	Correct	199 ms	196804 KB	Output is correct
32	Correct	210 ms	196856 KB	Output is correct
33	Correct	206 ms	196804 KB	Output is correct
34	Correct	206 ms	196904 KB	Output is correct
35	Correct	210 ms	196932 KB	Output is correct
36	Correct	201 ms	196908 KB	Output is correct
37	Correct	212 ms	196856 KB	Output is correct
38	Correct	207 ms	196836 KB	Output is correct
39	Correct	201 ms	196924 KB	Output is correct
40	Correct	200 ms	196804 KB	Output is correct
41	Correct	203 ms	196852 KB	Output is correct
42	Correct	208 ms	196896 KB	Output is correct
43	Correct	199 ms	196852 KB	Output is correct
44	Correct	223 ms	196792 KB	Output is correct
45	Correct	214 ms	196932 KB	Output is correct
46	Correct	207 ms	196856 KB	Output is correct
47	Correct	262 ms	196804 KB	Output is correct
48	Correct	207 ms	196852 KB	Output is correct
49	Correct	204 ms	196812 KB	Output is correct
50	Correct	208 ms	196784 KB	Output is correct
51	Correct	206 ms	196800 KB	Output is correct

Subtask #4

0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	89 ms	196400 KB	Output is correct
2	Correct	95 ms	196320 KB	Output is correct
3	Correct	90 ms	196356 KB	Output is correct
4	Correct	89 ms	196292 KB	Output is correct
5	Correct	91 ms	196388 KB	Output is correct
6	Correct	91 ms	196276 KB	Output is correct
7	Correct	96 ms	196292 KB	Output is correct
8	Correct	89 ms	196384 KB	Output is correct
9	Correct	89 ms	196424 KB	Output is correct
10	Correct	91 ms	196328 KB	Output is correct
11	Correct	88 ms	196288 KB	Output is correct
12	Correct	88 ms	196292 KB	Output is correct
13	Correct	89 ms	196384 KB	Output is correct
14	Correct	92 ms	196384 KB	Output is correct
15	Correct	87 ms	196356 KB	Output is correct
16	Correct	90 ms	196420 KB	Output is correct
17	Correct	89 ms	196400 KB	Output is correct
18	Correct	89 ms	196320 KB	Output is correct
19	Correct	88 ms	196420 KB	Output is correct
20	Correct	88 ms	196332 KB	Output is correct
21	Correct	98 ms	196324 KB	Output is correct
22	Correct	103 ms	196292 KB	Output is correct
23	Correct	99 ms	196404 KB	Output is correct
24	Correct	89 ms	196428 KB	Output is correct
25	Correct	89 ms	196328 KB	Output is correct
26	Correct	89 ms	196404 KB	Output is correct
27	Correct	204 ms	196804 KB	Output is correct
28	Correct	200 ms	196860 KB	Output is correct
29	Correct	204 ms	196852 KB	Output is correct
30	Correct	203 ms	196860 KB	Output is correct
31	Correct	199 ms	196804 KB	Output is correct
32	Correct	210 ms	196856 KB	Output is correct
33	Correct	206 ms	196804 KB	Output is correct
34	Correct	206 ms	196904 KB	Output is correct
35	Correct	210 ms	196932 KB	Output is correct
36	Correct	201 ms	196908 KB	Output is correct
37	Correct	212 ms	196856 KB	Output is correct
38	Correct	207 ms	196836 KB	Output is correct
39	Correct	201 ms	196924 KB	Output is correct
40	Correct	200 ms	196804 KB	Output is correct
41	Correct	203 ms	196852 KB	Output is correct
42	Correct	208 ms	196896 KB	Output is correct
43	Correct	199 ms	196852 KB	Output is correct
44	Correct	223 ms	196792 KB	Output is correct
45	Correct	214 ms	196932 KB	Output is correct
46	Correct	207 ms	196856 KB	Output is correct
47	Correct	262 ms	196804 KB	Output is correct
48	Correct	207 ms	196852 KB	Output is correct
49	Correct	204 ms	196812 KB	Output is correct
50	Correct	208 ms	196784 KB	Output is correct
51	Correct	206 ms	196800 KB	Output is correct
52	Incorrect	295 ms	202372 KB	Output isn't correct
53	Halted	0 ms	0 KB	-