#include <iostream>
using namespace std;
const int inf = 1e9 + 5;
const int N = 1e5 + 5;
int n, k, a[N], dp[N], bef[N];
pair < int, int > p[N];
int main () {
cin >> n >> k;
for(int i = 1; i <= n; i++) {
cin >> a[i];
bef[i] = max(bef[i - 1], a[i]);
}
for(int j = 2; j <= k; j++) {
int sz = 0;
for(int i = 1; i <= n; i++) {
int ans = j <= i ? bef[i - 1] : inf;
bef[i - 1] = dp[i - 1];
while(sz and a[i] >= p[sz - 1].first)
ans = min(ans, p[--sz].second);
if(!sz or a[i] + ans < p[sz - 1].first + p[sz - 1].second)
p[sz++] = make_pair(a[i], ans);
dp[i] = p[sz - 1].first + p[sz - 1].second;
}
bef[n] = dp[n];
}
cout << bef[n] << endl;
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 2 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 3 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 4 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 5 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 6 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 7 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 8 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 9 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 10 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 11 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 12 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 13 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 14 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 15 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 16 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 17 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 18 |
Correct |
0 ms |
3672 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
3672 KB |
Output is correct |
| 2 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 3 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 4 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 5 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 6 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 7 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 8 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 9 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 10 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 11 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 12 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 13 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 14 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 15 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 16 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 17 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 18 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 19 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 20 |
Correct |
0 ms |
3672 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 2 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 3 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 4 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 5 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 6 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 7 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 8 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 9 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 10 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 11 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 12 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 13 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 14 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 15 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 16 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 17 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 18 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 19 |
Correct |
0 ms |
3672 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
4 ms |
3672 KB |
Output is correct |
| 2 |
Correct |
19 ms |
3672 KB |
Output is correct |
| 3 |
Correct |
23 ms |
3672 KB |
Output is correct |
| 4 |
Correct |
56 ms |
3672 KB |
Output is correct |
| 5 |
Correct |
149 ms |
3672 KB |
Output is correct |
| 6 |
Correct |
39 ms |
3672 KB |
Output is correct |
| 7 |
Correct |
88 ms |
3672 KB |
Output is correct |
| 8 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 9 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 10 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 11 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 12 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 13 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 14 |
Correct |
10 ms |
3672 KB |
Output is correct |
| 15 |
Correct |
4 ms |
3672 KB |
Output is correct |
| 16 |
Correct |
8 ms |
3672 KB |
Output is correct |
| 17 |
Correct |
22 ms |
3672 KB |
Output is correct |
| 18 |
Correct |
18 ms |
3672 KB |
Output is correct |
| 19 |
Correct |
53 ms |
3672 KB |
Output is correct |
| 20 |
Correct |
150 ms |
3672 KB |
Output is correct |
| 21 |
Correct |
54 ms |
3672 KB |
Output is correct |
| 22 |
Correct |
91 ms |
3672 KB |
Output is correct |
| 23 |
Correct |
40 ms |
3672 KB |
Output is correct |
| 24 |
Correct |
54 ms |
3672 KB |
Output is correct |
| 25 |
Correct |
144 ms |
3672 KB |
Output is correct |
| 26 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 27 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 28 |
Correct |
20 ms |
3672 KB |
Output is correct |
| 29 |
Correct |
3 ms |
3672 KB |
Output is correct |
| 30 |
Correct |
5 ms |
3672 KB |
Output is correct |
| 31 |
Correct |
20 ms |
3672 KB |
Output is correct |
| 32 |
Correct |
24 ms |
3672 KB |
Output is correct |
| 33 |
Correct |
64 ms |
3672 KB |
Output is correct |
| 34 |
Correct |
182 ms |
3672 KB |
Output is correct |
| 35 |
Correct |
37 ms |
3672 KB |
Output is correct |
| 36 |
Correct |
108 ms |
3672 KB |
Output is correct |
| 37 |
Correct |
4 ms |
3672 KB |
Output is correct |
| 38 |
Correct |
16 ms |
3672 KB |
Output is correct |
| 39 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 40 |
Correct |
1 ms |
3672 KB |
Output is correct |
| 41 |
Correct |
0 ms |
3672 KB |
Output is correct |
| 42 |
Correct |
0 ms |
3672 KB |
Output is correct |
