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Submission #1026012

# Submission time Handle Problem Language Result Execution time Memory
1026012 2024-07-17T12:34:22 Z ach00 Feast (NOI19_feast) C++14
100 / 100
 98 ms 5736 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define MP make_pair
#define EPS 0.00001
int n,k;
vector<ll> W;
pair<ll,ll> solve(ll pen) {
    pair<ll,ll> zero = {0,0};
    pair<ll,ll> one = {W[0] - pen, 1};
    for(int i = 1; i < n; i++) {
        pair<ll,ll> _zero, _one;
        _zero = max(zero, one);
        _one = max(MP(one.first + W[i], one.second), MP(zero.first + W[i] - pen, zero.second + 1));
        zero = _zero;
        one = _one;
    }
    return max(zero, one);
}

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> n >> k;
    ll lower = 0;
    ll upper = 10000000000000;
    W.resize(n); for(auto &a : W) cin >> a;
    while(lower < upper) {
        ll m = (lower+upper+1)/2;
        auto K = solve(m);
        if(K.second >= k) {
            lower = m;
        } else {
            upper = m-1;
        }
    }
    auto K = solve(lower);
    cout << K.first + k*lower;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 36 ms 4944 KB Output is correct
2 Correct 36 ms 5200 KB Output is correct
3 Correct 35 ms 5204 KB Output is correct
4 Correct 38 ms 5456 KB Output is correct
5 Correct 45 ms 5204 KB Output is correct
6 Correct 36 ms 5212 KB Output is correct
7 Correct 35 ms 4956 KB Output is correct
8 Correct 35 ms 5212 KB Output is correct
9 Correct 35 ms 4948 KB Output is correct
10 Correct 35 ms 5212 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 3672 KB Output is correct
2 Correct 46 ms 3932 KB Output is correct
3 Correct 35 ms 3676 KB Output is correct
4 Correct 31 ms 3672 KB Output is correct
5 Correct 37 ms 4956 KB Output is correct
6 Correct 36 ms 3676 KB Output is correct
7 Correct 31 ms 3952 KB Output is correct
8 Correct 37 ms 5204 KB Output is correct
9 Correct 37 ms 4948 KB Output is correct
10 Correct 34 ms 3928 KB Output is correct

Subtask #3
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 60 ms 5204 KB Output is correct
2 Correct 61 ms 5720 KB Output is correct
3 Correct 60 ms 5724 KB Output is correct
4 Correct 71 ms 5716 KB Output is correct
5 Correct 60 ms 5716 KB Output is correct
6 Correct 59 ms 5716 KB Output is correct
7 Correct 58 ms 5712 KB Output is correct
8 Correct 59 ms 5700 KB Output is correct
9 Correct 67 ms 5720 KB Output is correct
10 Correct 62 ms 5736 KB Output is correct

Subtask #4
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 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 456 KB Output is correct

Subtask #5
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 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 456 KB Output is correct
11 Correct 0 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 0 ms 452 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct

Subtask #6
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 344 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 456 KB Output is correct
11 Correct 0 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 0 ms 452 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 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 496 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 36 ms 4944 KB Output is correct
2 Correct 36 ms 5200 KB Output is correct
3 Correct 35 ms 5204 KB Output is correct
4 Correct 38 ms 5456 KB Output is correct
5 Correct 45 ms 5204 KB Output is correct
6 Correct 36 ms 5212 KB Output is correct
7 Correct 35 ms 4956 KB Output is correct
8 Correct 35 ms 5212 KB Output is correct
9 Correct 35 ms 4948 KB Output is correct
10 Correct 35 ms 5212 KB Output is correct
11 Correct 34 ms 3672 KB Output is correct
12 Correct 46 ms 3932 KB Output is correct
13 Correct 35 ms 3676 KB Output is correct
14 Correct 31 ms 3672 KB Output is correct
15 Correct 37 ms 4956 KB Output is correct
16 Correct 36 ms 3676 KB Output is correct
17 Correct 31 ms 3952 KB Output is correct
18 Correct 37 ms 5204 KB Output is correct
19 Correct 37 ms 4948 KB Output is correct
20 Correct 34 ms 3928 KB Output is correct
21 Correct 60 ms 5204 KB Output is correct
22 Correct 61 ms 5720 KB Output is correct
23 Correct 60 ms 5724 KB Output is correct
24 Correct 71 ms 5716 KB Output is correct
25 Correct 60 ms 5716 KB Output is correct
26 Correct 59 ms 5716 KB Output is correct
27 Correct 58 ms 5712 KB Output is correct
28 Correct 59 ms 5700 KB Output is correct
29 Correct 67 ms 5720 KB Output is correct
30 Correct 62 ms 5736 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 1 ms 344 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 456 KB Output is correct
41 Correct 0 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 0 ms 452 KB Output is correct
46 Correct 0 ms 348 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 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 496 KB Output is correct
60 Correct 1 ms 348 KB Output is correct
61 Correct 87 ms 5556 KB Output is correct
62 Correct 98 ms 5716 KB Output is correct
63 Correct 72 ms 5464 KB Output is correct
64 Correct 97 ms 5724 KB Output is correct
65 Correct 92 ms 5720 KB Output is correct
66 Correct 90 ms 5728 KB Output is correct
67 Correct 92 ms 5720 KB Output is correct
68 Correct 69 ms 5716 KB Output is correct
69 Correct 58 ms 5468 KB Output is correct
70 Correct 94 ms 5648 KB Output is correct