#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) {
vector<vector<pair<ll,ll>>> dp(300005, vector<pair<ll,ll>>(2));
dp[0][0] = {0, 0};
dp[0][1] = {W[0] - pen, 1};
for(int i = 1; i < n; i++) {
dp[i][0] = max(dp[i-1][0], dp[i-1][1]);
dp[i][1] = max(MP(dp[i-1][1].first + W[i], dp[i-1][1].second), MP(dp[i-1][0].first + W[i] - pen, dp[i-1][0].second + 1));
}
return max(dp[n-1][0], dp[n-1][1]);
}
int main() {
cin >> n >> k;
ll lower = 0;
ll upper = 1000000000000000;
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;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
677 ms |
23868 KB |
Output is correct |
2 |
Correct |
694 ms |
23932 KB |
Output is correct |
3 |
Correct |
688 ms |
23976 KB |
Output is correct |
4 |
Correct |
706 ms |
24188 KB |
Output is correct |
5 |
Correct |
664 ms |
23948 KB |
Output is correct |
6 |
Correct |
725 ms |
23920 KB |
Output is correct |
7 |
Correct |
690 ms |
23892 KB |
Output is correct |
8 |
Correct |
695 ms |
23928 KB |
Output is correct |
9 |
Correct |
706 ms |
24052 KB |
Output is correct |
10 |
Correct |
706 ms |
23928 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
692 ms |
23916 KB |
Output is correct |
2 |
Correct |
812 ms |
23968 KB |
Output is correct |
3 |
Correct |
724 ms |
23948 KB |
Output is correct |
4 |
Correct |
821 ms |
23920 KB |
Output is correct |
5 |
Correct |
747 ms |
23900 KB |
Output is correct |
6 |
Correct |
729 ms |
24040 KB |
Output is correct |
7 |
Correct |
686 ms |
23972 KB |
Output is correct |
8 |
Correct |
752 ms |
23944 KB |
Output is correct |
9 |
Correct |
705 ms |
23908 KB |
Output is correct |
10 |
Correct |
746 ms |
24000 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
808 ms |
23924 KB |
Output is correct |
2 |
Correct |
817 ms |
23896 KB |
Output is correct |
3 |
Correct |
800 ms |
24056 KB |
Output is correct |
4 |
Correct |
773 ms |
24140 KB |
Output is correct |
5 |
Correct |
851 ms |
23936 KB |
Output is correct |
6 |
Correct |
839 ms |
23916 KB |
Output is correct |
7 |
Correct |
801 ms |
23932 KB |
Output is correct |
8 |
Correct |
764 ms |
24048 KB |
Output is correct |
9 |
Correct |
814 ms |
23960 KB |
Output is correct |
10 |
Correct |
792 ms |
24064 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
668 ms |
21584 KB |
Output is correct |
2 |
Correct |
685 ms |
21584 KB |
Output is correct |
3 |
Correct |
622 ms |
21640 KB |
Output is correct |
4 |
Correct |
665 ms |
21600 KB |
Output is correct |
5 |
Correct |
646 ms |
21840 KB |
Output is correct |
6 |
Correct |
757 ms |
21600 KB |
Output is correct |
7 |
Correct |
672 ms |
21588 KB |
Output is correct |
8 |
Correct |
724 ms |
21572 KB |
Output is correct |
9 |
Correct |
668 ms |
21612 KB |
Output is correct |
10 |
Correct |
659 ms |
21624 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
668 ms |
21584 KB |
Output is correct |
2 |
Correct |
685 ms |
21584 KB |
Output is correct |
3 |
Correct |
622 ms |
21640 KB |
Output is correct |
4 |
Correct |
665 ms |
21600 KB |
Output is correct |
5 |
Correct |
646 ms |
21840 KB |
Output is correct |
6 |
Correct |
757 ms |
21600 KB |
Output is correct |
7 |
Correct |
672 ms |
21588 KB |
Output is correct |
8 |
Correct |
724 ms |
21572 KB |
Output is correct |
9 |
Correct |
668 ms |
21612 KB |
Output is correct |
10 |
Correct |
659 ms |
21624 KB |
Output is correct |
11 |
Correct |
667 ms |
21604 KB |
Output is correct |
12 |
Correct |
672 ms |
21612 KB |
Output is correct |
13 |
Correct |
635 ms |
21604 KB |
Output is correct |
14 |
Correct |
654 ms |
21596 KB |
Output is correct |
15 |
Correct |
672 ms |
21636 KB |
Output is correct |
16 |
Correct |
651 ms |
21644 KB |
Output is correct |
17 |
Correct |
661 ms |
21860 KB |
Output is correct |
18 |
Correct |
655 ms |
21616 KB |
Output is correct |
19 |
Correct |
756 ms |
21748 KB |
Output is correct |
20 |
Correct |
667 ms |
21744 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
668 ms |
21584 KB |
Output is correct |
2 |
Correct |
685 ms |
21584 KB |
Output is correct |
3 |
Correct |
622 ms |
21640 KB |
Output is correct |
4 |
Correct |
665 ms |
21600 KB |
Output is correct |
5 |
Correct |
646 ms |
21840 KB |
Output is correct |
6 |
Correct |
757 ms |
21600 KB |
Output is correct |
7 |
Correct |
672 ms |
21588 KB |
Output is correct |
8 |
Correct |
724 ms |
21572 KB |
Output is correct |
9 |
Correct |
668 ms |
21612 KB |
Output is correct |
10 |
Correct |
659 ms |
21624 KB |
Output is correct |
11 |
Correct |
667 ms |
21604 KB |
Output is correct |
12 |
Correct |
672 ms |
21612 KB |
Output is correct |
13 |
Correct |
635 ms |
21604 KB |
Output is correct |
14 |
Correct |
654 ms |
21596 KB |
Output is correct |
15 |
Correct |
672 ms |
21636 KB |
Output is correct |
16 |
Correct |
651 ms |
21644 KB |
Output is correct |
17 |
Correct |
661 ms |
21860 KB |
Output is correct |
18 |
Correct |
655 ms |
21616 KB |
Output is correct |
19 |
Correct |
756 ms |
21748 KB |
Output is correct |
20 |
Correct |
667 ms |
21744 KB |
Output is correct |
21 |
Correct |
683 ms |
21612 KB |
Output is correct |
22 |
Correct |
675 ms |
21616 KB |
Output is correct |
23 |
Correct |
689 ms |
21620 KB |
Output is correct |
24 |
Correct |
659 ms |
21632 KB |
Output is correct |
25 |
Correct |
685 ms |
21596 KB |
Output is correct |
26 |
Correct |
724 ms |
21592 KB |
Output is correct |
27 |
Correct |
742 ms |
21644 KB |
Output is correct |
28 |
Correct |
694 ms |
21616 KB |
Output is correct |
29 |
Correct |
664 ms |
21608 KB |
Output is correct |
30 |
Correct |
640 ms |
21624 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
677 ms |
23868 KB |
Output is correct |
2 |
Correct |
694 ms |
23932 KB |
Output is correct |
3 |
Correct |
688 ms |
23976 KB |
Output is correct |
4 |
Correct |
706 ms |
24188 KB |
Output is correct |
5 |
Correct |
664 ms |
23948 KB |
Output is correct |
6 |
Correct |
725 ms |
23920 KB |
Output is correct |
7 |
Correct |
690 ms |
23892 KB |
Output is correct |
8 |
Correct |
695 ms |
23928 KB |
Output is correct |
9 |
Correct |
706 ms |
24052 KB |
Output is correct |
10 |
Correct |
706 ms |
23928 KB |
Output is correct |
11 |
Correct |
692 ms |
23916 KB |
Output is correct |
12 |
Correct |
812 ms |
23968 KB |
Output is correct |
13 |
Correct |
724 ms |
23948 KB |
Output is correct |
14 |
Correct |
821 ms |
23920 KB |
Output is correct |
15 |
Correct |
747 ms |
23900 KB |
Output is correct |
16 |
Correct |
729 ms |
24040 KB |
Output is correct |
17 |
Correct |
686 ms |
23972 KB |
Output is correct |
18 |
Correct |
752 ms |
23944 KB |
Output is correct |
19 |
Correct |
705 ms |
23908 KB |
Output is correct |
20 |
Correct |
746 ms |
24000 KB |
Output is correct |
21 |
Correct |
808 ms |
23924 KB |
Output is correct |
22 |
Correct |
817 ms |
23896 KB |
Output is correct |
23 |
Correct |
800 ms |
24056 KB |
Output is correct |
24 |
Correct |
773 ms |
24140 KB |
Output is correct |
25 |
Correct |
851 ms |
23936 KB |
Output is correct |
26 |
Correct |
839 ms |
23916 KB |
Output is correct |
27 |
Correct |
801 ms |
23932 KB |
Output is correct |
28 |
Correct |
764 ms |
24048 KB |
Output is correct |
29 |
Correct |
814 ms |
23960 KB |
Output is correct |
30 |
Correct |
792 ms |
24064 KB |
Output is correct |
31 |
Correct |
668 ms |
21584 KB |
Output is correct |
32 |
Correct |
685 ms |
21584 KB |
Output is correct |
33 |
Correct |
622 ms |
21640 KB |
Output is correct |
34 |
Correct |
665 ms |
21600 KB |
Output is correct |
35 |
Correct |
646 ms |
21840 KB |
Output is correct |
36 |
Correct |
757 ms |
21600 KB |
Output is correct |
37 |
Correct |
672 ms |
21588 KB |
Output is correct |
38 |
Correct |
724 ms |
21572 KB |
Output is correct |
39 |
Correct |
668 ms |
21612 KB |
Output is correct |
40 |
Correct |
659 ms |
21624 KB |
Output is correct |
41 |
Correct |
667 ms |
21604 KB |
Output is correct |
42 |
Correct |
672 ms |
21612 KB |
Output is correct |
43 |
Correct |
635 ms |
21604 KB |
Output is correct |
44 |
Correct |
654 ms |
21596 KB |
Output is correct |
45 |
Correct |
672 ms |
21636 KB |
Output is correct |
46 |
Correct |
651 ms |
21644 KB |
Output is correct |
47 |
Correct |
661 ms |
21860 KB |
Output is correct |
48 |
Correct |
655 ms |
21616 KB |
Output is correct |
49 |
Correct |
756 ms |
21748 KB |
Output is correct |
50 |
Correct |
667 ms |
21744 KB |
Output is correct |
51 |
Correct |
683 ms |
21612 KB |
Output is correct |
52 |
Correct |
675 ms |
21616 KB |
Output is correct |
53 |
Correct |
689 ms |
21620 KB |
Output is correct |
54 |
Correct |
659 ms |
21632 KB |
Output is correct |
55 |
Correct |
685 ms |
21596 KB |
Output is correct |
56 |
Correct |
724 ms |
21592 KB |
Output is correct |
57 |
Correct |
742 ms |
21644 KB |
Output is correct |
58 |
Correct |
694 ms |
21616 KB |
Output is correct |
59 |
Correct |
664 ms |
21608 KB |
Output is correct |
60 |
Correct |
640 ms |
21624 KB |
Output is correct |
61 |
Correct |
810 ms |
23892 KB |
Output is correct |
62 |
Correct |
762 ms |
23956 KB |
Output is correct |
63 |
Correct |
806 ms |
24080 KB |
Output is correct |
64 |
Correct |
815 ms |
23924 KB |
Output is correct |
65 |
Correct |
854 ms |
23976 KB |
Output is correct |
66 |
Correct |
810 ms |
23908 KB |
Output is correct |
67 |
Correct |
823 ms |
23884 KB |
Output is correct |
68 |
Correct |
778 ms |
23988 KB |
Output is correct |
69 |
Correct |
800 ms |
24032 KB |
Output is correct |
70 |
Correct |
798 ms |
23864 KB |
Output is correct |