oj.uz

답안 #927896

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
927896 2024-02-15T13:50:34 Z sleepntsheep Feast (NOI19_feast) C++17
100 / 100
 149 ms 13524 KB 
#include <cstdio>
#include <cmath>
#include <climits>
#include <functional>
#include <numeric>
#include <cstring>
#include <cassert>
#include <string>
#include <deque>
#include <vector>
#include <map>
#include <queue>
#include <algorithm>
#include <iostream>
#include <utility>
using namespace std;
using ll=long long;

#define N 300005
#define ALL(x) x.begin(), x.end()

int n, k, a[N];
long long p[N];
pair<ll, int> dp[N][2];
const long double EPS = 1e-3;

int check(ll lambda)
{
    dp[0][1] = make_pair(-1e18, 0);
    for (int i = 1; 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] - lambda, 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]).second >= k;
}

int main()
{
    cin.tie(0)->sync_with_stdio(0);
    cin >> n >> k;
    for (int i = 1; i <= n; ++i) cin >> a[i];

    ll l = 0, r = 3e12+5, z = 0;
    while (l <= r)
    {
        ll y = (l+r)/2;
        if (check(y)) z = y, l = y + 1;
        else r = y - 1;
    }

    check(z);
    cout << (long long)round(k * z + max(dp[n][0], dp[n][1]).first);

    return 0;
}

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 143 ms 13312 KB Output is correct
2 Correct 145 ms 13264 KB Output is correct
3 Correct 149 ms 13136 KB Output is correct
4 Correct 145 ms 13260 KB Output is correct
5 Correct 144 ms 13336 KB Output is correct
6 Correct 144 ms 13148 KB Output is correct
7 Correct 141 ms 13524 KB Output is correct
8 Correct 145 ms 13340 KB Output is correct
9 Correct 143 ms 13316 KB Output is correct
10 Correct 142 ms 13332 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 125 ms 13136 KB Output is correct
2 Correct 129 ms 13352 KB Output is correct
3 Correct 125 ms 13328 KB Output is correct
4 Correct 131 ms 13148 KB Output is correct
5 Correct 143 ms 13320 KB Output is correct
6 Correct 128 ms 13324 KB Output is correct
7 Correct 133 ms 13148 KB Output is correct
8 Correct 146 ms 13144 KB Output is correct
9 Correct 142 ms 13148 KB Output is correct
10 Correct 133 ms 13148 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 137 ms 13144 KB Output is correct
2 Correct 136 ms 13140 KB Output is correct
3 Correct 136 ms 13136 KB Output is correct
4 Correct 139 ms 13396 KB Output is correct
5 Correct 137 ms 13140 KB Output is correct
6 Correct 140 ms 13148 KB Output is correct
7 Correct 138 ms 13348 KB Output is correct
8 Correct 145 ms 13336 KB Output is correct
9 Correct 142 ms 13140 KB Output is correct
10 Correct 138 ms 13144 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct

Subtask #5
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 2396 KB Output is correct
2 Correct 1 ms 2396 KB Output is correct
3 Correct 1 ms 2396 KB Output is correct
4 Correct 1 ms 2396 KB Output is correct
5 Correct 1 ms 2396 KB Output is correct
6 Correct 0 ms 2396 KB Output is correct
7 Correct 1 ms 2392 KB Output is correct
8 Correct 1 ms 2396 KB Output is correct
9 Correct 0 ms 2396 KB Output is correct
10 Correct 0 ms 2396 KB Output is correct
11 Correct 1 ms 2396 KB Output is correct
12 Correct 1 ms 2396 KB Output is correct
13 Correct 1 ms 2396 KB Output is correct
14 Correct 1 ms 2396 KB Output is correct
15 Correct 1 ms 2396 KB Output is correct
16 Correct 1 ms 2396 KB Output is correct
17 Correct 1 ms 2396 KB Output is correct
18 Correct 1 ms 2396 KB Output is correct
19 Correct 1 ms 2396 KB Output is correct
20 Correct 1 ms 2396 KB Output is correct
21 Correct 2 ms 2396 KB Output is correct
22 Correct 2 ms 2652 KB Output is correct
23 Correct 2 ms 2396 KB Output is correct
24 Correct 1 ms 2576 KB Output is correct
25 Correct 1 ms 2396 KB Output is correct
26 Correct 2 ms 2396 KB Output is correct
27 Correct 1 ms 2396 KB Output is correct
28 Correct 1 ms 2396 KB Output is correct
29 Correct 1 ms 2396 KB Output is correct
30 Correct 2 ms 2396 KB Output is correct

Subtask #7
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 143 ms 13312 KB Output is correct
2 Correct 145 ms 13264 KB Output is correct
3 Correct 149 ms 13136 KB Output is correct
4 Correct 145 ms 13260 KB Output is correct
5 Correct 144 ms 13336 KB Output is correct
6 Correct 144 ms 13148 KB Output is correct
7 Correct 141 ms 13524 KB Output is correct
8 Correct 145 ms 13340 KB Output is correct
9 Correct 143 ms 13316 KB Output is correct
10 Correct 142 ms 13332 KB Output is correct
11 Correct 125 ms 13136 KB Output is correct
12 Correct 129 ms 13352 KB Output is correct
13 Correct 125 ms 13328 KB Output is correct
14 Correct 131 ms 13148 KB Output is correct
15 Correct 143 ms 13320 KB Output is correct
16 Correct 128 ms 13324 KB Output is correct
17 Correct 133 ms 13148 KB Output is correct
18 Correct 146 ms 13144 KB Output is correct
19 Correct 142 ms 13148 KB Output is correct
20 Correct 133 ms 13148 KB Output is correct
21 Correct 137 ms 13144 KB Output is correct
22 Correct 136 ms 13140 KB Output is correct
23 Correct 136 ms 13136 KB Output is correct
24 Correct 139 ms 13396 KB Output is correct
25 Correct 137 ms 13140 KB Output is correct
26 Correct 140 ms 13148 KB Output is correct
27 Correct 138 ms 13348 KB Output is correct
28 Correct 145 ms 13336 KB Output is correct
29 Correct 142 ms 13140 KB Output is correct
30 Correct 138 ms 13144 KB Output is correct
31 Correct 1 ms 2396 KB Output is correct
32 Correct 1 ms 2396 KB Output is correct
33 Correct 1 ms 2396 KB Output is correct
34 Correct 1 ms 2396 KB Output is correct
35 Correct 1 ms 2396 KB Output is correct
36 Correct 0 ms 2396 KB Output is correct
37 Correct 1 ms 2392 KB Output is correct
38 Correct 1 ms 2396 KB Output is correct
39 Correct 0 ms 2396 KB Output is correct
40 Correct 0 ms 2396 KB Output is correct
41 Correct 1 ms 2396 KB Output is correct
42 Correct 1 ms 2396 KB Output is correct
43 Correct 1 ms 2396 KB Output is correct
44 Correct 1 ms 2396 KB Output is correct
45 Correct 1 ms 2396 KB Output is correct
46 Correct 1 ms 2396 KB Output is correct
47 Correct 1 ms 2396 KB Output is correct
48 Correct 1 ms 2396 KB Output is correct
49 Correct 1 ms 2396 KB Output is correct
50 Correct 1 ms 2396 KB Output is correct
51 Correct 2 ms 2396 KB Output is correct
52 Correct 2 ms 2652 KB Output is correct
53 Correct 2 ms 2396 KB Output is correct
54 Correct 1 ms 2576 KB Output is correct
55 Correct 1 ms 2396 KB Output is correct
56 Correct 2 ms 2396 KB Output is correct
57 Correct 1 ms 2396 KB Output is correct
58 Correct 1 ms 2396 KB Output is correct
59 Correct 1 ms 2396 KB Output is correct
60 Correct 2 ms 2396 KB Output is correct
61 Correct 142 ms 13112 KB Output is correct
62 Correct 142 ms 13140 KB Output is correct
63 Correct 136 ms 13320 KB Output is correct
64 Correct 141 ms 13344 KB Output is correct
65 Correct 144 ms 13344 KB Output is correct
66 Correct 141 ms 13136 KB Output is correct
67 Correct 142 ms 13328 KB Output is correct
68 Correct 138 ms 13340 KB Output is correct
69 Correct 142 ms 13116 KB Output is correct
70 Correct 137 ms 13140 KB Output is correct