oj.uz

답안 #1113207

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
1113207 2024-11-16T03:48:54 Z HiepVu217 Feast (NOI19_feast) C++17
100 / 100
 137 ms 10220 KB 
#include <bits/stdc++.h>
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
using namespace std;
const int N = 3e5 + 17;
int n, k;
long long a[N];
pair <long long, int> f[N], m;
inline pair <long long, int> calc (long long c)
{
    f[0] = m = {0, 0};
    for (int i = 1; i <= n; ++i)
    {
        f[i] = f[i - 1];
        if (m.first + a[i] - c > f[i].first || (m.first + a[i] - c == f[i].first && m.second + 1 < f[i].second))
        {
            f[i].first = m.first + a[i] - c;
            f[i].second = m.second + 1;
        }
        if (f[i].first - a[i] > m.first || (f[i].first - a[i] == m.first && f[i].second < m.second))
        {
            m.first = f[i].first - a[i];
            m.second = f[i].second;
        }
    }
    return f[n];
}
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin >> n >> k;
    for (int i = 1; i <= n; ++i)
    {
        cin >> a[i];
        a[i] += a[i - 1];
    }
    long long l = 1, r = 3e14;
    while (l < r)
    {
        long long mid = l + r + 1 >> 1;
        m = calc (mid);
        if (m.second >= k)
        {
            l = mid;
            continue;
        }
        r = mid - 1;
    }
    m = calc(l);
    long long ans = l * m.second + m.first;
    cout << ans;
}

Compilation message

feast.cpp:2: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    2 | #pragma GCC optimization ("O3")
      | 
feast.cpp:3: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    3 | #pragma GCC optimization ("unroll-loops")
      | 
feast.cpp: In function 'int main()':
feast.cpp:42:31: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   42 |         long long mid = l + r + 1 >> 1;
      |                         ~~~~~~^~~

Subtask #1
4.0 / 4.0

# 결과 실행 시간 메모리 Grader output
1 Correct 46 ms 7248 KB Output is correct
2 Correct 46 ms 7240 KB Output is correct
3 Correct 65 ms 7380 KB Output is correct
4 Correct 79 ms 7440 KB Output is correct
5 Correct 48 ms 7248 KB Output is correct
6 Correct 50 ms 7248 KB Output is correct
7 Correct 73 ms 7244 KB Output is correct
8 Correct 75 ms 7240 KB Output is correct
9 Correct 57 ms 7228 KB Output is correct
10 Correct 50 ms 7248 KB Output is correct

Subtask #2
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 38 ms 7248 KB Output is correct
2 Correct 77 ms 7240 KB Output is correct
3 Correct 38 ms 7248 KB Output is correct
4 Correct 39 ms 7248 KB Output is correct
5 Correct 53 ms 7268 KB Output is correct
6 Correct 36 ms 7248 KB Output is correct
7 Correct 37 ms 7504 KB Output is correct
8 Correct 43 ms 7240 KB Output is correct
9 Correct 45 ms 7240 KB Output is correct
10 Correct 37 ms 7376 KB Output is correct

Subtask #3
18.0 / 18.0

# 결과 실행 시간 메모리 Grader output
1 Correct 64 ms 7248 KB Output is correct
2 Correct 65 ms 7232 KB Output is correct
3 Correct 63 ms 7168 KB Output is correct
4 Correct 68 ms 7164 KB Output is correct
5 Correct 79 ms 7272 KB Output is correct
6 Correct 61 ms 7444 KB Output is correct
7 Correct 68 ms 7440 KB Output is correct
8 Correct 67 ms 7404 KB Output is correct
9 Correct 74 ms 7240 KB Output is correct
10 Correct 66 ms 7244 KB Output is correct

Subtask #4
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 464 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct

Subtask #5
11.0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 464 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 636 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 592 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct

Subtask #6
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 336 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 336 KB Output is correct
4 Correct 1 ms 512 KB Output is correct
5 Correct 1 ms 336 KB Output is correct
6 Correct 1 ms 336 KB Output is correct
7 Correct 1 ms 464 KB Output is correct
8 Correct 1 ms 336 KB Output is correct
9 Correct 1 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 1 ms 636 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 592 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 336 KB Output is correct
21 Correct 2 ms 336 KB Output is correct
22 Correct 2 ms 336 KB Output is correct
23 Correct 2 ms 504 KB Output is correct
24 Correct 1 ms 340 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 512 KB Output is correct
27 Correct 2 ms 340 KB Output is correct
28 Correct 2 ms 340 KB Output is correct
29 Correct 2 ms 336 KB Output is correct
30 Correct 1 ms 336 KB Output is correct

Subtask #7
29.0 / 29.0

# 결과 실행 시간 메모리 Grader output
1 Correct 46 ms 7248 KB Output is correct
2 Correct 46 ms 7240 KB Output is correct
3 Correct 65 ms 7380 KB Output is correct
4 Correct 79 ms 7440 KB Output is correct
5 Correct 48 ms 7248 KB Output is correct
6 Correct 50 ms 7248 KB Output is correct
7 Correct 73 ms 7244 KB Output is correct
8 Correct 75 ms 7240 KB Output is correct
9 Correct 57 ms 7228 KB Output is correct
10 Correct 50 ms 7248 KB Output is correct
11 Correct 38 ms 7248 KB Output is correct
12 Correct 77 ms 7240 KB Output is correct
13 Correct 38 ms 7248 KB Output is correct
14 Correct 39 ms 7248 KB Output is correct
15 Correct 53 ms 7268 KB Output is correct
16 Correct 36 ms 7248 KB Output is correct
17 Correct 37 ms 7504 KB Output is correct
18 Correct 43 ms 7240 KB Output is correct
19 Correct 45 ms 7240 KB Output is correct
20 Correct 37 ms 7376 KB Output is correct
21 Correct 64 ms 7248 KB Output is correct
22 Correct 65 ms 7232 KB Output is correct
23 Correct 63 ms 7168 KB Output is correct
24 Correct 68 ms 7164 KB Output is correct
25 Correct 79 ms 7272 KB Output is correct
26 Correct 61 ms 7444 KB Output is correct
27 Correct 68 ms 7440 KB Output is correct
28 Correct 67 ms 7404 KB Output is correct
29 Correct 74 ms 7240 KB Output is correct
30 Correct 66 ms 7244 KB Output is correct
31 Correct 2 ms 336 KB Output is correct
32 Correct 1 ms 336 KB Output is correct
33 Correct 1 ms 336 KB Output is correct
34 Correct 1 ms 512 KB Output is correct
35 Correct 1 ms 336 KB Output is correct
36 Correct 1 ms 336 KB Output is correct
37 Correct 1 ms 464 KB Output is correct
38 Correct 1 ms 336 KB Output is correct
39 Correct 1 ms 336 KB Output is correct
40 Correct 1 ms 336 KB Output is correct
41 Correct 1 ms 336 KB Output is correct
42 Correct 1 ms 636 KB Output is correct
43 Correct 1 ms 336 KB Output is correct
44 Correct 1 ms 336 KB Output is correct
45 Correct 1 ms 336 KB Output is correct
46 Correct 1 ms 336 KB Output is correct
47 Correct 1 ms 336 KB Output is correct
48 Correct 1 ms 592 KB Output is correct
49 Correct 1 ms 336 KB Output is correct
50 Correct 1 ms 336 KB Output is correct
51 Correct 2 ms 336 KB Output is correct
52 Correct 2 ms 336 KB Output is correct
53 Correct 2 ms 504 KB Output is correct
54 Correct 1 ms 340 KB Output is correct
55 Correct 1 ms 336 KB Output is correct
56 Correct 1 ms 512 KB Output is correct
57 Correct 2 ms 340 KB Output is correct
58 Correct 2 ms 340 KB Output is correct
59 Correct 2 ms 336 KB Output is correct
60 Correct 1 ms 336 KB Output is correct
61 Correct 109 ms 9176 KB Output is correct
62 Correct 111 ms 9948 KB Output is correct
63 Correct 84 ms 9648 KB Output is correct
64 Correct 118 ms 10056 KB Output is correct
65 Correct 137 ms 9612 KB Output is correct
66 Correct 106 ms 10056 KB Output is correct
67 Correct 111 ms 9872 KB Output is correct
68 Correct 71 ms 10220 KB Output is correct
69 Correct 67 ms 10056 KB Output is correct
70 Correct 79 ms 9760 KB Output is correct