답안 #557530

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
557530	2022-05-05T12:39:01 Z	Alexandruabcde	Feast (NOI19_feast)	C++14	100 / 100	736 ms	26912 KB

feast

#include <bits/stdc++.h>

using namespace std;

typedef long double LD;
typedef long long LL;
typedef pair <LD, int> PLDI;
constexpr int NMAX = 3e5 + 5;
constexpr LD INF = 1LL * 1e14;

int N, K;

LD A[NMAX];
PLDI dp[NMAX][2];

PLDI Check (LD penalty) {
    dp[1][0] = {0, 0};
    dp[1][1] = {A[1] - penalty, 1};

    for (int i = 2; i <= N; ++ i ) {
        dp[i][0] = max(dp[i-1][0], dp[i-1][1]);
        dp[i][1] = max(make_pair(dp[i-1][0].first + A[i] - penalty, dp[i-1][0].second + 1),
                       make_pair(dp[i-1][1].first + A[i], dp[i-1][1].second));
    }

    return max(dp[N][0], dp[N][1]);
}

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    cin >> N >> K;

    for (int i = 1; i <= N; ++ i )
        cin >> A[i];

    int cnt_op = 100;
    LD st = 0, dr = INF;
    while (st <= dr && cnt_op) {
        LD mij = .5 * (st + dr);
        -- cnt_op;

        PLDI pos_ans = Check(mij);
        if (pos_ans.second >= K)
            st = mij;
        else dr = mij;
    }

    PLDI ans = Check(dr);
    LL val = round(ans.first + (LD)K * dr);

    cout << val << '\n';

    return 0;
}

Subtask #1
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	401 ms	25828 KB	Output is correct
2	Correct	447 ms	26368 KB	Output is correct
3	Correct	447 ms	26704 KB	Output is correct
4	Correct	478 ms	26484 KB	Output is correct
5	Correct	450 ms	26444 KB	Output is correct
6	Correct	467 ms	25900 KB	Output is correct
7	Correct	422 ms	25888 KB	Output is correct
8	Correct	421 ms	26424 KB	Output is correct
9	Correct	438 ms	25952 KB	Output is correct
10	Correct	414 ms	26220 KB	Output is correct

Subtask #2
8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	407 ms	24356 KB	Output is correct
2	Correct	418 ms	24904 KB	Output is correct
3	Correct	382 ms	24336 KB	Output is correct
4	Correct	393 ms	24652 KB	Output is correct
5	Correct	403 ms	25932 KB	Output is correct
6	Correct	380 ms	24236 KB	Output is correct
7	Correct	385 ms	24904 KB	Output is correct
8	Correct	419 ms	26568 KB	Output is correct
9	Correct	405 ms	25740 KB	Output is correct
10	Correct	399 ms	24772 KB	Output is correct

Subtask #3
18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	485 ms	26568 KB	Output is correct
2	Correct	481 ms	26368 KB	Output is correct
3	Correct	503 ms	26480 KB	Output is correct
4	Correct	473 ms	26260 KB	Output is correct
5	Correct	481 ms	26568 KB	Output is correct
6	Correct	483 ms	26572 KB	Output is correct
7	Correct	494 ms	26636 KB	Output is correct
8	Correct	488 ms	26448 KB	Output is correct
9	Correct	483 ms	26804 KB	Output is correct
10	Correct	495 ms	26752 KB	Output is correct

Subtask #4
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct

Subtask #5
11.0 / 11.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	328 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct

Subtask #6
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	340 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	336 KB	Output is correct
7	Correct	1 ms	340 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	336 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	1 ms	340 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	1 ms	340 KB	Output is correct
17	Correct	1 ms	340 KB	Output is correct
18	Correct	1 ms	340 KB	Output is correct
19	Correct	1 ms	328 KB	Output is correct
20	Correct	1 ms	340 KB	Output is correct
21	Correct	4 ms	468 KB	Output is correct
22	Correct	5 ms	468 KB	Output is correct
23	Correct	4 ms	468 KB	Output is correct
24	Correct	4 ms	524 KB	Output is correct
25	Correct	5 ms	468 KB	Output is correct
26	Correct	4 ms	468 KB	Output is correct
27	Correct	4 ms	468 KB	Output is correct
28	Correct	4 ms	468 KB	Output is correct
29	Correct	5 ms	468 KB	Output is correct
30	Correct	4 ms	468 KB	Output is correct

Subtask #7
29.0 / 29.0

#	결과	실행 시간	메모리	Grader output
1	Correct	401 ms	25828 KB	Output is correct
2	Correct	447 ms	26368 KB	Output is correct
3	Correct	447 ms	26704 KB	Output is correct
4	Correct	478 ms	26484 KB	Output is correct
5	Correct	450 ms	26444 KB	Output is correct
6	Correct	467 ms	25900 KB	Output is correct
7	Correct	422 ms	25888 KB	Output is correct
8	Correct	421 ms	26424 KB	Output is correct
9	Correct	438 ms	25952 KB	Output is correct
10	Correct	414 ms	26220 KB	Output is correct
11	Correct	407 ms	24356 KB	Output is correct
12	Correct	418 ms	24904 KB	Output is correct
13	Correct	382 ms	24336 KB	Output is correct
14	Correct	393 ms	24652 KB	Output is correct
15	Correct	403 ms	25932 KB	Output is correct
16	Correct	380 ms	24236 KB	Output is correct
17	Correct	385 ms	24904 KB	Output is correct
18	Correct	419 ms	26568 KB	Output is correct
19	Correct	405 ms	25740 KB	Output is correct
20	Correct	399 ms	24772 KB	Output is correct
21	Correct	485 ms	26568 KB	Output is correct
22	Correct	481 ms	26368 KB	Output is correct
23	Correct	503 ms	26480 KB	Output is correct
24	Correct	473 ms	26260 KB	Output is correct
25	Correct	481 ms	26568 KB	Output is correct
26	Correct	483 ms	26572 KB	Output is correct
27	Correct	494 ms	26636 KB	Output is correct
28	Correct	488 ms	26448 KB	Output is correct
29	Correct	483 ms	26804 KB	Output is correct
30	Correct	495 ms	26752 KB	Output is correct
31	Correct	1 ms	340 KB	Output is correct
32	Correct	1 ms	340 KB	Output is correct
33	Correct	1 ms	340 KB	Output is correct
34	Correct	1 ms	340 KB	Output is correct
35	Correct	1 ms	340 KB	Output is correct
36	Correct	1 ms	336 KB	Output is correct
37	Correct	1 ms	340 KB	Output is correct
38	Correct	1 ms	340 KB	Output is correct
39	Correct	1 ms	336 KB	Output is correct
40	Correct	1 ms	340 KB	Output is correct
41	Correct	1 ms	340 KB	Output is correct
42	Correct	1 ms	340 KB	Output is correct
43	Correct	1 ms	340 KB	Output is correct
44	Correct	1 ms	340 KB	Output is correct
45	Correct	1 ms	340 KB	Output is correct
46	Correct	1 ms	340 KB	Output is correct
47	Correct	1 ms	340 KB	Output is correct
48	Correct	1 ms	340 KB	Output is correct
49	Correct	1 ms	328 KB	Output is correct
50	Correct	1 ms	340 KB	Output is correct
51	Correct	4 ms	468 KB	Output is correct
52	Correct	5 ms	468 KB	Output is correct
53	Correct	4 ms	468 KB	Output is correct
54	Correct	4 ms	524 KB	Output is correct
55	Correct	5 ms	468 KB	Output is correct
56	Correct	4 ms	468 KB	Output is correct
57	Correct	4 ms	468 KB	Output is correct
58	Correct	4 ms	468 KB	Output is correct
59	Correct	5 ms	468 KB	Output is correct
60	Correct	4 ms	468 KB	Output is correct
61	Correct	660 ms	26260 KB	Output is correct
62	Correct	651 ms	26912 KB	Output is correct
63	Correct	557 ms	26044 KB	Output is correct
64	Correct	736 ms	26656 KB	Output is correct
65	Correct	671 ms	26752 KB	Output is correct
66	Correct	655 ms	26468 KB	Output is correct
67	Correct	655 ms	26196 KB	Output is correct
68	Correct	499 ms	26712 KB	Output is correct
69	Correct	476 ms	26148 KB	Output is correct
70	Correct	475 ms	25932 KB	Output is correct

답안 #557530

Compilation message

Subtask #1 4.0 / 4.0

Subtask #2 8.0 / 8.0

Subtask #3 18.0 / 18.0

Subtask #4 10.0 / 10.0

Subtask #5 11.0 / 11.0

Subtask #6 20.0 / 20.0

Subtask #7 29.0 / 29.0

Subtask #1
4.0 / 4.0

Subtask #2
8.0 / 8.0

Subtask #3
18.0 / 18.0

Subtask #4
10.0 / 10.0

Subtask #5
11.0 / 11.0

Subtask #6
20.0 / 20.0

Subtask #7
29.0 / 29.0