Submission #488958

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
488958	2021-11-20T20:48:44 Z	SlavicG	Art Exhibition (JOI18_art)	C++17	100 / 100	168 ms	17864 KB

#include "bits/stdc++.h"
using namespace std;
 
#define ll long long
 
#define       forn(i,n)              for(int i=0;i<n;i++)
#define          all(v)              v.begin(), v.end()
#define         rall(v)              v.rbegin(),v.rend()
 
#define            pb                push_back
#define          sz(a)               (int)a.size()

#define int long long
const int N = 5e5 + 10;

ll suf_max[N];

void solve()
{ 
    for(int i = 0;i < N; ++i){
        suf_max[i] = LLONG_MIN;
    }
    int n;
    cin >> n;
    vector<pair<int,int>> a(n);
    vector<int> pref(n);
    for(int i = 0;i < n; ++i){
        cin >> a[i].first >> a[i].second;
    }

    sort(all(a));
    for(int i = 0;i < n; ++i){
        pref[i] = a[i].second;
        if(i)pref[i] += pref[i - 1];
    }
    for(int i = n - 1;i >= 0; --i){
        suf_max[i] = max(suf_max[i + 1], pref[i] - a[i].first);
    }
    ll ans = 0;
    for(int i = 0;i < n; ++i){
        ans = max(ans, a[i].second);
        if(i + 1 < n){
            ans = max(ans, suf_max[i + 1] - pref[i] + a[i].second + a[i].first);
        }
    }

    cout << ans << "\n";
}   
 
int32_t main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int t = 1;
    //cin >> t;
    while(t--)
    {
        solve();
    }
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	4172 KB	Output is correct
2	Correct	2 ms	4232 KB	Output is correct
3	Correct	2 ms	4172 KB	Output is correct
4	Correct	2 ms	4228 KB	Output is correct
5	Correct	2 ms	4172 KB	Output is correct
6	Correct	2 ms	4172 KB	Output is correct
7	Correct	2 ms	4160 KB	Output is correct
8	Correct	2 ms	4172 KB	Output is correct
9	Correct	2 ms	4172 KB	Output is correct
10	Correct	2 ms	4172 KB	Output is correct
11	Correct	2 ms	4172 KB	Output is correct

Subtask #2
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	4172 KB	Output is correct
2	Correct	2 ms	4232 KB	Output is correct
3	Correct	2 ms	4172 KB	Output is correct
4	Correct	2 ms	4228 KB	Output is correct
5	Correct	2 ms	4172 KB	Output is correct
6	Correct	2 ms	4172 KB	Output is correct
7	Correct	2 ms	4160 KB	Output is correct
8	Correct	2 ms	4172 KB	Output is correct
9	Correct	2 ms	4172 KB	Output is correct
10	Correct	2 ms	4172 KB	Output is correct
11	Correct	2 ms	4172 KB	Output is correct
12	Correct	2 ms	4172 KB	Output is correct
13	Correct	2 ms	4172 KB	Output is correct
14	Correct	2 ms	4172 KB	Output is correct
15	Correct	2 ms	4232 KB	Output is correct
16	Correct	2 ms	4172 KB	Output is correct
17	Correct	2 ms	4172 KB	Output is correct
18	Correct	2 ms	4172 KB	Output is correct
19	Correct	2 ms	4228 KB	Output is correct
20	Correct	2 ms	4236 KB	Output is correct
21	Correct	2 ms	4172 KB	Output is correct
22	Correct	2 ms	4172 KB	Output is correct
23	Correct	2 ms	4172 KB	Output is correct
24	Correct	2 ms	4172 KB	Output is correct
25	Correct	2 ms	4232 KB	Output is correct
26	Correct	2 ms	4172 KB	Output is correct

Subtask #3
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	4172 KB	Output is correct
2	Correct	2 ms	4232 KB	Output is correct
3	Correct	2 ms	4172 KB	Output is correct
4	Correct	2 ms	4228 KB	Output is correct
5	Correct	2 ms	4172 KB	Output is correct
6	Correct	2 ms	4172 KB	Output is correct
7	Correct	2 ms	4160 KB	Output is correct
8	Correct	2 ms	4172 KB	Output is correct
9	Correct	2 ms	4172 KB	Output is correct
10	Correct	2 ms	4172 KB	Output is correct
11	Correct	2 ms	4172 KB	Output is correct
12	Correct	2 ms	4172 KB	Output is correct
13	Correct	2 ms	4172 KB	Output is correct
14	Correct	2 ms	4172 KB	Output is correct
15	Correct	2 ms	4232 KB	Output is correct
16	Correct	2 ms	4172 KB	Output is correct
17	Correct	2 ms	4172 KB	Output is correct
18	Correct	2 ms	4172 KB	Output is correct
19	Correct	2 ms	4228 KB	Output is correct
20	Correct	2 ms	4236 KB	Output is correct
21	Correct	2 ms	4172 KB	Output is correct
22	Correct	2 ms	4172 KB	Output is correct
23	Correct	2 ms	4172 KB	Output is correct
24	Correct	2 ms	4172 KB	Output is correct
25	Correct	2 ms	4232 KB	Output is correct
26	Correct	2 ms	4172 KB	Output is correct
27	Correct	3 ms	4428 KB	Output is correct
28	Correct	4 ms	4428 KB	Output is correct
29	Correct	4 ms	4428 KB	Output is correct
30	Correct	4 ms	4456 KB	Output is correct
31	Correct	3 ms	4428 KB	Output is correct
32	Correct	3 ms	4428 KB	Output is correct
33	Correct	3 ms	4428 KB	Output is correct
34	Correct	3 ms	4428 KB	Output is correct
35	Correct	3 ms	4368 KB	Output is correct
36	Correct	4 ms	4428 KB	Output is correct
37	Correct	5 ms	4428 KB	Output is correct
38	Correct	4 ms	4428 KB	Output is correct
39	Correct	4 ms	4372 KB	Output is correct
40	Correct	4 ms	4468 KB	Output is correct
41	Correct	3 ms	4428 KB	Output is correct
42	Correct	3 ms	4428 KB	Output is correct
43	Correct	3 ms	4428 KB	Output is correct
44	Correct	3 ms	4428 KB	Output is correct
45	Correct	3 ms	4428 KB	Output is correct
46	Correct	4 ms	4428 KB	Output is correct
47	Correct	3 ms	4364 KB	Output is correct
48	Correct	4 ms	4372 KB	Output is correct
49	Correct	3 ms	4428 KB	Output is correct
50	Correct	3 ms	4428 KB	Output is correct
51	Correct	3 ms	4428 KB	Output is correct

Subtask #4
50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	4172 KB	Output is correct
2	Correct	2 ms	4232 KB	Output is correct
3	Correct	2 ms	4172 KB	Output is correct
4	Correct	2 ms	4228 KB	Output is correct
5	Correct	2 ms	4172 KB	Output is correct
6	Correct	2 ms	4172 KB	Output is correct
7	Correct	2 ms	4160 KB	Output is correct
8	Correct	2 ms	4172 KB	Output is correct
9	Correct	2 ms	4172 KB	Output is correct
10	Correct	2 ms	4172 KB	Output is correct
11	Correct	2 ms	4172 KB	Output is correct
12	Correct	2 ms	4172 KB	Output is correct
13	Correct	2 ms	4172 KB	Output is correct
14	Correct	2 ms	4172 KB	Output is correct
15	Correct	2 ms	4232 KB	Output is correct
16	Correct	2 ms	4172 KB	Output is correct
17	Correct	2 ms	4172 KB	Output is correct
18	Correct	2 ms	4172 KB	Output is correct
19	Correct	2 ms	4228 KB	Output is correct
20	Correct	2 ms	4236 KB	Output is correct
21	Correct	2 ms	4172 KB	Output is correct
22	Correct	2 ms	4172 KB	Output is correct
23	Correct	2 ms	4172 KB	Output is correct
24	Correct	2 ms	4172 KB	Output is correct
25	Correct	2 ms	4232 KB	Output is correct
26	Correct	2 ms	4172 KB	Output is correct
27	Correct	3 ms	4428 KB	Output is correct
28	Correct	4 ms	4428 KB	Output is correct
29	Correct	4 ms	4428 KB	Output is correct
30	Correct	4 ms	4456 KB	Output is correct
31	Correct	3 ms	4428 KB	Output is correct
32	Correct	3 ms	4428 KB	Output is correct
33	Correct	3 ms	4428 KB	Output is correct
34	Correct	3 ms	4428 KB	Output is correct
35	Correct	3 ms	4368 KB	Output is correct
36	Correct	4 ms	4428 KB	Output is correct
37	Correct	5 ms	4428 KB	Output is correct
38	Correct	4 ms	4428 KB	Output is correct
39	Correct	4 ms	4372 KB	Output is correct
40	Correct	4 ms	4468 KB	Output is correct
41	Correct	3 ms	4428 KB	Output is correct
42	Correct	3 ms	4428 KB	Output is correct
43	Correct	3 ms	4428 KB	Output is correct
44	Correct	3 ms	4428 KB	Output is correct
45	Correct	3 ms	4428 KB	Output is correct
46	Correct	4 ms	4428 KB	Output is correct
47	Correct	3 ms	4364 KB	Output is correct
48	Correct	4 ms	4372 KB	Output is correct
49	Correct	3 ms	4428 KB	Output is correct
50	Correct	3 ms	4428 KB	Output is correct
51	Correct	3 ms	4428 KB	Output is correct
52	Correct	164 ms	17812 KB	Output is correct
53	Correct	168 ms	17832 KB	Output is correct
54	Correct	162 ms	17816 KB	Output is correct
55	Correct	165 ms	17820 KB	Output is correct
56	Correct	160 ms	17740 KB	Output is correct
57	Correct	164 ms	17864 KB	Output is correct
58	Correct	164 ms	17816 KB	Output is correct
59	Correct	162 ms	17772 KB	Output is correct
60	Correct	161 ms	17768 KB	Output is correct
61	Correct	164 ms	17740 KB	Output is correct
62	Correct	159 ms	17760 KB	Output is correct
63	Correct	162 ms	17752 KB	Output is correct
64	Correct	164 ms	17816 KB	Output is correct
65	Correct	162 ms	17820 KB	Output is correct
66	Correct	162 ms	17760 KB	Output is correct
67	Correct	165 ms	17764 KB	Output is correct
68	Correct	167 ms	17848 KB	Output is correct

Submission #488958

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