#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const int N = 1e5 + 6;
const ll INF = 1e15;
ll Old[N], New[N];
int a[N], sz;
pair<ll,ll> p[N];
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0), cout.tie(0);
int n, k;
cin >> n >> k;
for (int i = 1 ; i <= n ; ++ i) {
cin >> a[i];
Old[i] = max(Old[i - 1], (ll)a[i]);
}
for (int j = 2 ; j <= k ; ++ j) {
sz = 0;
for (int i = 1 ; i <= n ; ++ i) {
ll Mn = j <= i ? Old[i - 1] : INF;
while (sz && p[sz - 1].first <= a[i]) Mn = min(Mn, p[sz - 1].second), sz--;
if (!sz || a[i] + Mn < p[sz - 1].first + p[sz - 1].second) sz++, p[sz - 1] = {a[i], Mn};
New[i] = p[sz - 1].first + p[sz - 1].second;
}
swap(Old, New);
}
cout << Old[n];
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
2 ms |
1900 KB |
Output is correct |
5 |
Correct |
2 ms |
1900 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
2 ms |
1920 KB |
Output is correct |
8 |
Correct |
2 ms |
1920 KB |
Output is correct |
9 |
Correct |
2 ms |
1900 KB |
Output is correct |
10 |
Correct |
3 ms |
1900 KB |
Output is correct |
11 |
Correct |
3 ms |
1900 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Correct |
2 ms |
1900 KB |
Output is correct |
14 |
Correct |
2 ms |
1900 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
2 ms |
1900 KB |
Output is correct |
17 |
Correct |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
2 ms |
1900 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
2 ms |
2044 KB |
Output is correct |
5 |
Correct |
2 ms |
1900 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
2 ms |
1900 KB |
Output is correct |
8 |
Correct |
2 ms |
1900 KB |
Output is correct |
9 |
Correct |
2 ms |
1900 KB |
Output is correct |
10 |
Correct |
2 ms |
1900 KB |
Output is correct |
11 |
Correct |
2 ms |
1900 KB |
Output is correct |
12 |
Correct |
2 ms |
1900 KB |
Output is correct |
13 |
Correct |
2 ms |
1900 KB |
Output is correct |
14 |
Correct |
3 ms |
1900 KB |
Output is correct |
15 |
Correct |
3 ms |
1900 KB |
Output is correct |
16 |
Correct |
3 ms |
1900 KB |
Output is correct |
17 |
Correct |
3 ms |
1900 KB |
Output is correct |
18 |
Correct |
3 ms |
1900 KB |
Output is correct |
19 |
Correct |
4 ms |
1900 KB |
Output is correct |
20 |
Correct |
4 ms |
1900 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
2 ms |
1900 KB |
Output is correct |
5 |
Correct |
2 ms |
1900 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
2 ms |
1920 KB |
Output is correct |
8 |
Correct |
2 ms |
1920 KB |
Output is correct |
9 |
Correct |
2 ms |
1900 KB |
Output is correct |
10 |
Correct |
3 ms |
1900 KB |
Output is correct |
11 |
Correct |
3 ms |
1900 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Correct |
2 ms |
1900 KB |
Output is correct |
14 |
Correct |
2 ms |
1900 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
2 ms |
1900 KB |
Output is correct |
17 |
Correct |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
2 ms |
1900 KB |
Output is correct |
19 |
Correct |
1 ms |
364 KB |
Output is correct |
20 |
Correct |
1 ms |
364 KB |
Output is correct |
21 |
Correct |
1 ms |
364 KB |
Output is correct |
22 |
Correct |
2 ms |
2044 KB |
Output is correct |
23 |
Correct |
2 ms |
1900 KB |
Output is correct |
24 |
Correct |
1 ms |
364 KB |
Output is correct |
25 |
Correct |
2 ms |
1900 KB |
Output is correct |
26 |
Correct |
2 ms |
1900 KB |
Output is correct |
27 |
Correct |
2 ms |
1900 KB |
Output is correct |
28 |
Correct |
2 ms |
1900 KB |
Output is correct |
29 |
Correct |
2 ms |
1900 KB |
Output is correct |
30 |
Correct |
2 ms |
1900 KB |
Output is correct |
31 |
Correct |
2 ms |
1900 KB |
Output is correct |
32 |
Correct |
3 ms |
1900 KB |
Output is correct |
33 |
Correct |
3 ms |
1900 KB |
Output is correct |
34 |
Correct |
3 ms |
1900 KB |
Output is correct |
35 |
Correct |
3 ms |
1900 KB |
Output is correct |
36 |
Correct |
3 ms |
1900 KB |
Output is correct |
37 |
Correct |
4 ms |
1900 KB |
Output is correct |
38 |
Correct |
4 ms |
1900 KB |
Output is correct |
39 |
Correct |
7 ms |
1900 KB |
Output is correct |
40 |
Correct |
1 ms |
364 KB |
Output is correct |
41 |
Correct |
1 ms |
364 KB |
Output is correct |
42 |
Correct |
1 ms |
364 KB |
Output is correct |
43 |
Correct |
2 ms |
1900 KB |
Output is correct |
44 |
Correct |
2 ms |
1900 KB |
Output is correct |
45 |
Correct |
1 ms |
364 KB |
Output is correct |
46 |
Correct |
2 ms |
1900 KB |
Output is correct |
47 |
Correct |
2 ms |
1900 KB |
Output is correct |
48 |
Correct |
2 ms |
2048 KB |
Output is correct |
49 |
Correct |
2 ms |
1900 KB |
Output is correct |
50 |
Correct |
2 ms |
1900 KB |
Output is correct |
51 |
Correct |
4 ms |
1900 KB |
Output is correct |
52 |
Correct |
5 ms |
1900 KB |
Output is correct |
53 |
Correct |
15 ms |
1900 KB |
Output is correct |
54 |
Correct |
13 ms |
1900 KB |
Output is correct |
55 |
Correct |
7 ms |
1900 KB |
Output is correct |
56 |
Correct |
13 ms |
1900 KB |
Output is correct |
57 |
Correct |
13 ms |
1900 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
364 KB |
Output is correct |
2 |
Correct |
1 ms |
364 KB |
Output is correct |
3 |
Correct |
1 ms |
364 KB |
Output is correct |
4 |
Correct |
2 ms |
1900 KB |
Output is correct |
5 |
Correct |
2 ms |
1900 KB |
Output is correct |
6 |
Correct |
1 ms |
364 KB |
Output is correct |
7 |
Correct |
2 ms |
1920 KB |
Output is correct |
8 |
Correct |
2 ms |
1920 KB |
Output is correct |
9 |
Correct |
2 ms |
1900 KB |
Output is correct |
10 |
Correct |
3 ms |
1900 KB |
Output is correct |
11 |
Correct |
3 ms |
1900 KB |
Output is correct |
12 |
Correct |
1 ms |
364 KB |
Output is correct |
13 |
Correct |
2 ms |
1900 KB |
Output is correct |
14 |
Correct |
2 ms |
1900 KB |
Output is correct |
15 |
Correct |
1 ms |
364 KB |
Output is correct |
16 |
Correct |
2 ms |
1900 KB |
Output is correct |
17 |
Correct |
1 ms |
364 KB |
Output is correct |
18 |
Correct |
2 ms |
1900 KB |
Output is correct |
19 |
Correct |
1 ms |
364 KB |
Output is correct |
20 |
Correct |
1 ms |
364 KB |
Output is correct |
21 |
Correct |
1 ms |
364 KB |
Output is correct |
22 |
Correct |
2 ms |
2044 KB |
Output is correct |
23 |
Correct |
2 ms |
1900 KB |
Output is correct |
24 |
Correct |
1 ms |
364 KB |
Output is correct |
25 |
Correct |
2 ms |
1900 KB |
Output is correct |
26 |
Correct |
2 ms |
1900 KB |
Output is correct |
27 |
Correct |
2 ms |
1900 KB |
Output is correct |
28 |
Correct |
2 ms |
1900 KB |
Output is correct |
29 |
Correct |
2 ms |
1900 KB |
Output is correct |
30 |
Correct |
2 ms |
1900 KB |
Output is correct |
31 |
Correct |
2 ms |
1900 KB |
Output is correct |
32 |
Correct |
3 ms |
1900 KB |
Output is correct |
33 |
Correct |
3 ms |
1900 KB |
Output is correct |
34 |
Correct |
3 ms |
1900 KB |
Output is correct |
35 |
Correct |
3 ms |
1900 KB |
Output is correct |
36 |
Correct |
3 ms |
1900 KB |
Output is correct |
37 |
Correct |
4 ms |
1900 KB |
Output is correct |
38 |
Correct |
4 ms |
1900 KB |
Output is correct |
39 |
Correct |
7 ms |
1900 KB |
Output is correct |
40 |
Correct |
1 ms |
364 KB |
Output is correct |
41 |
Correct |
1 ms |
364 KB |
Output is correct |
42 |
Correct |
1 ms |
364 KB |
Output is correct |
43 |
Correct |
2 ms |
1900 KB |
Output is correct |
44 |
Correct |
2 ms |
1900 KB |
Output is correct |
45 |
Correct |
1 ms |
364 KB |
Output is correct |
46 |
Correct |
2 ms |
1900 KB |
Output is correct |
47 |
Correct |
2 ms |
1900 KB |
Output is correct |
48 |
Correct |
2 ms |
2048 KB |
Output is correct |
49 |
Correct |
2 ms |
1900 KB |
Output is correct |
50 |
Correct |
2 ms |
1900 KB |
Output is correct |
51 |
Correct |
4 ms |
1900 KB |
Output is correct |
52 |
Correct |
5 ms |
1900 KB |
Output is correct |
53 |
Correct |
15 ms |
1900 KB |
Output is correct |
54 |
Correct |
13 ms |
1900 KB |
Output is correct |
55 |
Correct |
7 ms |
1900 KB |
Output is correct |
56 |
Correct |
13 ms |
1900 KB |
Output is correct |
57 |
Correct |
13 ms |
1900 KB |
Output is correct |
58 |
Correct |
7 ms |
2028 KB |
Output is correct |
59 |
Correct |
5 ms |
1132 KB |
Output is correct |
60 |
Correct |
8 ms |
2412 KB |
Output is correct |
61 |
Correct |
39 ms |
2412 KB |
Output is correct |
62 |
Correct |
98 ms |
3052 KB |
Output is correct |
63 |
Correct |
13 ms |
2924 KB |
Output is correct |
64 |
Correct |
50 ms |
3052 KB |
Output is correct |
65 |
Correct |
5 ms |
1920 KB |
Output is correct |
66 |
Correct |
7 ms |
1900 KB |
Output is correct |
67 |
Correct |
9 ms |
1900 KB |
Output is correct |
68 |
Correct |
7 ms |
1900 KB |
Output is correct |
69 |
Correct |
1 ms |
364 KB |
Output is correct |
70 |
Correct |
3 ms |
1900 KB |
Output is correct |
71 |
Correct |
21 ms |
2028 KB |
Output is correct |
72 |
Correct |
3 ms |
2060 KB |
Output is correct |
73 |
Correct |
7 ms |
2156 KB |
Output is correct |
74 |
Correct |
5 ms |
1132 KB |
Output is correct |
75 |
Correct |
8 ms |
2412 KB |
Output is correct |
76 |
Correct |
37 ms |
2444 KB |
Output is correct |
77 |
Correct |
82 ms |
2924 KB |
Output is correct |
78 |
Correct |
13 ms |
2948 KB |
Output is correct |
79 |
Correct |
42 ms |
2924 KB |
Output is correct |
80 |
Correct |
11 ms |
2156 KB |
Output is correct |
81 |
Correct |
17 ms |
2924 KB |
Output is correct |
82 |
Correct |
85 ms |
2924 KB |
Output is correct |
83 |
Correct |
1 ms |
364 KB |
Output is correct |
84 |
Correct |
3 ms |
1900 KB |
Output is correct |
85 |
Correct |
22 ms |
2028 KB |
Output is correct |
86 |
Correct |
3 ms |
2028 KB |
Output is correct |
87 |
Correct |
8 ms |
2028 KB |
Output is correct |
88 |
Correct |
5 ms |
1132 KB |
Output is correct |
89 |
Correct |
9 ms |
2668 KB |
Output is correct |
90 |
Correct |
44 ms |
2668 KB |
Output is correct |
91 |
Correct |
140 ms |
3564 KB |
Output is correct |
92 |
Correct |
13 ms |
3564 KB |
Output is correct |
93 |
Correct |
69 ms |
3564 KB |
Output is correct |
94 |
Correct |
4 ms |
2044 KB |
Output is correct |
95 |
Correct |
21 ms |
2060 KB |
Output is correct |
96 |
Correct |
3 ms |
1900 KB |
Output is correct |
97 |
Correct |
1 ms |
364 KB |
Output is correct |
98 |
Correct |
3 ms |
1900 KB |
Output is correct |
99 |
Correct |
2 ms |
1900 KB |
Output is correct |