oj.uz

Submission #917391

# Submission time Handle Problem Language Result Execution time Memory
917391 2024-01-28T04:38:08 Z 406 Feast (NOI19_feast) C++17
100 / 100
 112 ms 5876 KB 
#include <bits/stdc++.h>
#define int long long
#define FOR(i, a, b) for (int i = (a); i < (b); ++i)

using namespace std;
using ar = array<int, 2>;

const int64_t INF = 1ll << 60;
const int N = 3e5 + 5;
int n, k, a[N], ans;

bool check(const int O, bool f = 0) {
        ar dp{0, 0}, F{0, 0};
        int s = 0;
        FOR(i, 0, n) {
                s += a[i];
                F = max(F, ar{dp[0] - s, dp[1]});
                dp = max(dp, ar{s + F[0] - O, F[1] - 1});
        }
        if (f) ans = max(ans, dp[0] + k * O);
        return -dp[1] >= k;
}

signed main() {
        ios::sync_with_stdio(false);
        cin.tie(nullptr); 
        cin >> n >> k;
        FOR(i, 0, n) cin >> a[i];
        int l = 0, r = 1ll << 50;
        while (r - l > 1) {
                int m = l + r >> 1;
                if (check(m)) l = m;
                else r = m;
        }
        check(l, 1);
        cout << ans << '\n';
        return 0;
}

Compilation message

feast.cpp: In function 'int main()':
feast.cpp:31:27: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   31 |                 int m = l + r >> 1;
      |                         ~~^~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 4068 KB Output is correct
2 Correct 42 ms 4336 KB Output is correct
3 Correct 45 ms 4444 KB Output is correct
4 Correct 44 ms 4436 KB Output is correct
5 Correct 59 ms 4428 KB Output is correct
6 Correct 42 ms 4204 KB Output is correct
7 Correct 41 ms 4176 KB Output is correct
8 Correct 42 ms 4444 KB Output is correct
9 Correct 49 ms 4176 KB Output is correct
10 Correct 43 ms 4416 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 44 ms 3416 KB Output is correct
2 Correct 32 ms 3540 KB Output is correct
3 Correct 30 ms 3420 KB Output is correct
4 Correct 34 ms 3412 KB Output is correct
5 Correct 38 ms 5612 KB Output is correct
6 Correct 31 ms 3672 KB Output is correct
7 Correct 33 ms 4108 KB Output is correct
8 Correct 40 ms 5460 KB Output is correct
9 Correct 38 ms 5516 KB Output is correct
10 Correct 32 ms 3676 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 61 ms 4548 KB Output is correct
2 Correct 66 ms 4444 KB Output is correct
3 Correct 58 ms 4532 KB Output is correct
4 Correct 58 ms 4520 KB Output is correct
5 Correct 58 ms 4452 KB Output is correct
6 Correct 58 ms 4420 KB Output is correct
7 Correct 59 ms 4464 KB Output is correct
8 Correct 58 ms 4436 KB Output is correct
9 Correct 59 ms 4576 KB Output is correct
10 Correct 60 ms 4512 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 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 0 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 1 ms 348 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 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 0 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 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 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 0 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 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 1 ms 348 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 600 KB Output is correct
23 Correct 1 ms 504 KB Output is correct
24 Correct 1 ms 348 KB Output is correct
25 Correct 1 ms 476 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

# Verdict Execution time Memory Grader output
1 Correct 44 ms 4068 KB Output is correct
2 Correct 42 ms 4336 KB Output is correct
3 Correct 45 ms 4444 KB Output is correct
4 Correct 44 ms 4436 KB Output is correct
5 Correct 59 ms 4428 KB Output is correct
6 Correct 42 ms 4204 KB Output is correct
7 Correct 41 ms 4176 KB Output is correct
8 Correct 42 ms 4444 KB Output is correct
9 Correct 49 ms 4176 KB Output is correct
10 Correct 43 ms 4416 KB Output is correct
11 Correct 44 ms 3416 KB Output is correct
12 Correct 32 ms 3540 KB Output is correct
13 Correct 30 ms 3420 KB Output is correct
14 Correct 34 ms 3412 KB Output is correct
15 Correct 38 ms 5612 KB Output is correct
16 Correct 31 ms 3672 KB Output is correct
17 Correct 33 ms 4108 KB Output is correct
18 Correct 40 ms 5460 KB Output is correct
19 Correct 38 ms 5516 KB Output is correct
20 Correct 32 ms 3676 KB Output is correct
21 Correct 61 ms 4548 KB Output is correct
22 Correct 66 ms 4444 KB Output is correct
23 Correct 58 ms 4532 KB Output is correct
24 Correct 58 ms 4520 KB Output is correct
25 Correct 58 ms 4452 KB Output is correct
26 Correct 58 ms 4420 KB Output is correct
27 Correct 59 ms 4464 KB Output is correct
28 Correct 58 ms 4436 KB Output is correct
29 Correct 59 ms 4576 KB Output is correct
30 Correct 60 ms 4512 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 1 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 0 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 1 ms 348 KB Output is correct
41 Correct 1 ms 348 KB Output is correct
42 Correct 1 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 1 ms 348 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 600 KB Output is correct
53 Correct 1 ms 504 KB Output is correct
54 Correct 1 ms 348 KB Output is correct
55 Correct 1 ms 476 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 112 ms 5724 KB Output is correct
62 Correct 93 ms 5844 KB Output is correct
63 Correct 70 ms 5700 KB Output is correct
64 Correct 100 ms 5712 KB Output is correct
65 Correct 99 ms 5724 KB Output is correct
66 Correct 97 ms 5792 KB Output is correct
67 Correct 96 ms 5712 KB Output is correct
68 Correct 64 ms 5876 KB Output is correct
69 Correct 58 ms 5708 KB Output is correct
70 Correct 62 ms 5676 KB Output is correct