Submission #542780

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
542780	2022-03-28T02:58:41 Z	QuantumK9	Art Exhibition (JOI18_art)	C++17	100 / 100	217 ms	28620 KB

#include <bits/stdc++.h>
#define ll long long
#define pb push_back
#define mp make_pair
#define mt make_tuple 

using namespace std;

void solve(){

    int n; cin >> n;

    pair<ll,ll> painting[n];

    for( int i = 0; i < n; i++ ){
        ll s, v; cin >> s >> v;
        painting[i] = mp( s, v );
    }

    sort( painting, painting+n );

    ll prefixSumsValues[n];
    memset( prefixSumsValues, 0, sizeof prefixSumsValues );

    for( int i = 0; i < n; i++ ){
        if ( i > 0 ){ prefixSumsValues[i] += prefixSumsValues[i-1]; }
        prefixSumsValues[i] += painting[i].second;
    }

    // cout << "Prefix Sums of Values: ";
    // for( ll i : prefixSumsValues ){ cout << i << " "; }
    // cout << endl;

    ll bestChoiceOfK[n];
    memset( bestChoiceOfK, 0, sizeof bestChoiceOfK );

    for( int i = n-1; i >= 0; i-- ){
        bestChoiceOfK[i] = prefixSumsValues[i] - painting[i].first; // sum of 0..i (S) - Amax
        if( i < n-1 ){ bestChoiceOfK[i] =  max( bestChoiceOfK[i], bestChoiceOfK[i+1] ); } // check if greater is better
    }

    ll maxx = 0;

    for( int start_index = 0; start_index < n; start_index++ ){
        ll value = bestChoiceOfK[ start_index ] + painting[ start_index ].first; // add start index
        if ( start_index > 0 ){ value -= prefixSumsValues[ start_index-1]; } // cut back on unnecessary values
        maxx = max( maxx, value );
    }

    cout << maxx << endl;


    return;
}


int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    int t = 1;
    //cin >> t;
    while (t--) { solve(); }

    return 0;
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	320 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	316 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct

Subtask #2
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	320 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	316 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	324 KB	Output is correct
14	Correct	1 ms	328 KB	Output is correct
15	Correct	1 ms	328 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	320 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	1 ms	320 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	328 KB	Output is correct

Subtask #3
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	320 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	316 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	324 KB	Output is correct
14	Correct	1 ms	328 KB	Output is correct
15	Correct	1 ms	328 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	320 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	1 ms	320 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	328 KB	Output is correct
27	Correct	2 ms	596 KB	Output is correct
28	Correct	2 ms	596 KB	Output is correct
29	Correct	2 ms	596 KB	Output is correct
30	Correct	3 ms	596 KB	Output is correct
31	Correct	2 ms	596 KB	Output is correct
32	Correct	2 ms	596 KB	Output is correct
33	Correct	2 ms	596 KB	Output is correct
34	Correct	2 ms	516 KB	Output is correct
35	Correct	2 ms	596 KB	Output is correct
36	Correct	2 ms	524 KB	Output is correct
37	Correct	2 ms	528 KB	Output is correct
38	Correct	2 ms	596 KB	Output is correct
39	Correct	3 ms	596 KB	Output is correct
40	Correct	2 ms	524 KB	Output is correct
41	Correct	3 ms	468 KB	Output is correct
42	Correct	2 ms	596 KB	Output is correct
43	Correct	2 ms	596 KB	Output is correct
44	Correct	2 ms	524 KB	Output is correct
45	Correct	2 ms	596 KB	Output is correct
46	Correct	2 ms	584 KB	Output is correct
47	Correct	2 ms	596 KB	Output is correct
48	Correct	2 ms	596 KB	Output is correct
49	Correct	2 ms	584 KB	Output is correct
50	Correct	3 ms	504 KB	Output is correct
51	Correct	2 ms	592 KB	Output is correct

Subtask #4
50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	320 KB	Output is correct
5	Correct	1 ms	212 KB	Output is correct
6	Correct	1 ms	316 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	1 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	1 ms	316 KB	Output is correct
12	Correct	1 ms	212 KB	Output is correct
13	Correct	1 ms	324 KB	Output is correct
14	Correct	1 ms	328 KB	Output is correct
15	Correct	1 ms	328 KB	Output is correct
16	Correct	1 ms	212 KB	Output is correct
17	Correct	1 ms	212 KB	Output is correct
18	Correct	1 ms	212 KB	Output is correct
19	Correct	1 ms	212 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	1 ms	320 KB	Output is correct
22	Correct	1 ms	212 KB	Output is correct
23	Correct	0 ms	212 KB	Output is correct
24	Correct	1 ms	320 KB	Output is correct
25	Correct	1 ms	212 KB	Output is correct
26	Correct	1 ms	328 KB	Output is correct
27	Correct	2 ms	596 KB	Output is correct
28	Correct	2 ms	596 KB	Output is correct
29	Correct	2 ms	596 KB	Output is correct
30	Correct	3 ms	596 KB	Output is correct
31	Correct	2 ms	596 KB	Output is correct
32	Correct	2 ms	596 KB	Output is correct
33	Correct	2 ms	596 KB	Output is correct
34	Correct	2 ms	516 KB	Output is correct
35	Correct	2 ms	596 KB	Output is correct
36	Correct	2 ms	524 KB	Output is correct
37	Correct	2 ms	528 KB	Output is correct
38	Correct	2 ms	596 KB	Output is correct
39	Correct	3 ms	596 KB	Output is correct
40	Correct	2 ms	524 KB	Output is correct
41	Correct	3 ms	468 KB	Output is correct
42	Correct	2 ms	596 KB	Output is correct
43	Correct	2 ms	596 KB	Output is correct
44	Correct	2 ms	524 KB	Output is correct
45	Correct	2 ms	596 KB	Output is correct
46	Correct	2 ms	584 KB	Output is correct
47	Correct	2 ms	596 KB	Output is correct
48	Correct	2 ms	596 KB	Output is correct
49	Correct	2 ms	584 KB	Output is correct
50	Correct	3 ms	504 KB	Output is correct
51	Correct	2 ms	592 KB	Output is correct
52	Correct	181 ms	28460 KB	Output is correct
53	Correct	184 ms	28584 KB	Output is correct
54	Correct	174 ms	28576 KB	Output is correct
55	Correct	182 ms	28580 KB	Output is correct
56	Correct	174 ms	28576 KB	Output is correct
57	Correct	175 ms	28576 KB	Output is correct
58	Correct	180 ms	28600 KB	Output is correct
59	Correct	176 ms	28492 KB	Output is correct
60	Correct	217 ms	28588 KB	Output is correct
61	Correct	185 ms	28456 KB	Output is correct
62	Correct	176 ms	28580 KB	Output is correct
63	Correct	187 ms	28576 KB	Output is correct
64	Correct	178 ms	28580 KB	Output is correct
65	Correct	187 ms	28568 KB	Output is correct
66	Correct	185 ms	28620 KB	Output is correct
67	Correct	187 ms	28576 KB	Output is correct
68	Correct	183 ms	28580 KB	Output is correct

Submission #542780

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