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답안 #1023161

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1023161 2024-07-14T11:24:56 Z avighna Feast (NOI19_feast) C++17
100 / 100
 145 ms 15196 KB 
#include <bits/stdc++.h>

typedef long long ll;

const ll N = 3e5 + 1;

std::pair<ll, ll> dp[N][2];

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

    ll n, k;
    std::cin >> n >> k;
    std::vector<ll> a(n);
    for (auto &i : a) {
        std::cin >> i;
    }

    auto solve_dp = [&](ll p) {
        dp[0][0] = {0, 0};
        dp[0][1] = {a[0] - p, 1};
        for (ll i = 1; i < n; ++ i) {
            dp[i][1] = std::max(std::make_pair<ll, ll>(a[i] + dp[i - 1][1].first, ll(dp[i - 1][1].second)), std::make_pair<ll, ll>(a[i] + dp[i - 1][0].first - p, dp[i - 1][0].second + 1));
            dp[i][0] = std::max(dp[i - 1][0], dp[i - 1][1]);
        }
        dp[n][0] = std::max(dp[n - 1][0], dp[n - 1][1]);
        return dp[n][0];
    };

    ll lo = 0, hi = 1e18;
    for (ll i = 0; i < 64; ++ i) {
        ll p = (lo + hi) / 2;
        if (solve_dp(p).second <= k) {
            hi = p;
        } else {
            lo = p;
        }
    }
    auto dp = solve_dp(hi);
    std::cout << dp.first + dp.second * hi << "\n";
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 14420 KB Output is correct
2 Correct 69 ms 14672 KB Output is correct
3 Correct 71 ms 14932 KB Output is correct
4 Correct 69 ms 14932 KB Output is correct
5 Correct 71 ms 14668 KB Output is correct
6 Correct 76 ms 14628 KB Output is correct
7 Correct 66 ms 14416 KB Output is correct
8 Correct 69 ms 14936 KB Output is correct
9 Correct 67 ms 14684 KB Output is correct
10 Correct 70 ms 14672 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 57 ms 12880 KB Output is correct
2 Correct 59 ms 13164 KB Output is correct
3 Correct 73 ms 12932 KB Output is correct
4 Correct 58 ms 12888 KB Output is correct
5 Correct 67 ms 14508 KB Output is correct
6 Correct 57 ms 12892 KB Output is correct
7 Correct 61 ms 13144 KB Output is correct
8 Correct 65 ms 14932 KB Output is correct
9 Correct 60 ms 14428 KB Output is correct
10 Correct 54 ms 13144 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 79 ms 14924 KB Output is correct
2 Correct 79 ms 14672 KB Output is correct
3 Correct 89 ms 14876 KB Output is correct
4 Correct 80 ms 14644 KB Output is correct
5 Correct 73 ms 14936 KB Output is correct
6 Correct 75 ms 14940 KB Output is correct
7 Correct 77 ms 15196 KB Output is correct
8 Correct 76 ms 14940 KB Output is correct
9 Correct 75 ms 15084 KB Output is correct
10 Correct 90 ms 14932 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct

Subtask #5
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 600 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 464 KB Output is correct
20 Correct 1 ms 348 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 600 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 0 ms 464 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 1 ms 348 KB Output is correct
23 Correct 1 ms 348 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 348 KB Output is correct
26 Correct 1 ms 348 KB Output is correct
27 Correct 1 ms 348 KB Output is correct
28 Correct 1 ms 348 KB Output is correct
29 Correct 1 ms 348 KB Output is correct
30 Correct 1 ms 348 KB Output is correct

Subtask #7
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 69 ms 14420 KB Output is correct
2 Correct 69 ms 14672 KB Output is correct
3 Correct 71 ms 14932 KB Output is correct
4 Correct 69 ms 14932 KB Output is correct
5 Correct 71 ms 14668 KB Output is correct
6 Correct 76 ms 14628 KB Output is correct
7 Correct 66 ms 14416 KB Output is correct
8 Correct 69 ms 14936 KB Output is correct
9 Correct 67 ms 14684 KB Output is correct
10 Correct 70 ms 14672 KB Output is correct
11 Correct 57 ms 12880 KB Output is correct
12 Correct 59 ms 13164 KB Output is correct
13 Correct 73 ms 12932 KB Output is correct
14 Correct 58 ms 12888 KB Output is correct
15 Correct 67 ms 14508 KB Output is correct
16 Correct 57 ms 12892 KB Output is correct
17 Correct 61 ms 13144 KB Output is correct
18 Correct 65 ms 14932 KB Output is correct
19 Correct 60 ms 14428 KB Output is correct
20 Correct 54 ms 13144 KB Output is correct
21 Correct 79 ms 14924 KB Output is correct
22 Correct 79 ms 14672 KB Output is correct
23 Correct 89 ms 14876 KB Output is correct
24 Correct 80 ms 14644 KB Output is correct
25 Correct 73 ms 14936 KB Output is correct
26 Correct 75 ms 14940 KB Output is correct
27 Correct 77 ms 15196 KB Output is correct
28 Correct 76 ms 14940 KB Output is correct
29 Correct 75 ms 15084 KB Output is correct
30 Correct 90 ms 14932 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 1 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 1 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 600 KB Output is correct
48 Correct 1 ms 348 KB Output is correct
49 Correct 0 ms 464 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 1 ms 348 KB Output is correct
52 Correct 1 ms 348 KB Output is correct
53 Correct 1 ms 348 KB Output is correct
54 Correct 1 ms 348 KB Output is correct
55 Correct 1 ms 348 KB Output is correct
56 Correct 1 ms 348 KB Output is correct
57 Correct 1 ms 348 KB Output is correct
58 Correct 1 ms 348 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 145 ms 14780 KB Output is correct
62 Correct 123 ms 15188 KB Output is correct
63 Correct 103 ms 14680 KB Output is correct
64 Correct 137 ms 14932 KB Output is correct
65 Correct 135 ms 14940 KB Output is correct
66 Correct 137 ms 14924 KB Output is correct
67 Correct 132 ms 14684 KB Output is correct
68 Correct 88 ms 14928 KB Output is correct
69 Correct 86 ms 14672 KB Output is correct
70 Correct 84 ms 14684 KB Output is correct