#include <iostream>
#include <string>
#include <cstring>
#include <vector>
#include <map>
#include <algorithm>
#include <math.h>
#include <utility>
#include <set>
#include <time.h>
#include <list>
#include <typeinfo>
#include <cstdio>
#include <numeric>
#include <stack>
#include <stdio.h>
using namespace std;
#define max3(a, b, c) max(a, max(b, c))
#define min3(a, b, c) min(a, min(b, c))
#define mp make_pair
#define f first
#define se second
#define pb push_back
#define ppb pop_back
#define ll long long
#define ull unsigned long long
#define cntbit(x) __builtin_popcount(x)
#define endl '\n'
#define uset unordered_set
#define umap unordered_map
#define pii pair<int, int>
#define ld long double
#define pll pair<long long, long long>
const ll inf = 2e18;
const int N = 1e5 + 15;
const int K = 115;
ll n, k, a[N], dp[K][N], maxx;
stack <ll> s[2];
int main() {
for(int i = 0; i < K; ++i)
for(int j = 0; j < N; ++j)
dp[i][j] = inf;
cin >> n >> k;
for(int i = 1; i <= n; ++i) {
cin >> a[i];
maxx = max(maxx, a[i]);
dp[1][i] = maxx;
}
for(int i = 2; i <= k; ++i) {
while(!s[0].empty())
s[0].pop(), s[1].pop();
for(int j = 1; j <= n; ++j) {
ll cur = dp[i - 1][j - 1];
while(!s[0].empty() && s[0].top() < a[j]) {
cur = min(cur, s[1].top());
s[0].pop(), s[1].pop();
}
if(s[0].empty() || s[0].top() + s[1].top() > cur + a[j])
s[0].push(a[j]), s[1].push(cur);
if(j >= i)
dp[i][j] = s[0].top() + s[1].top();
}
}
cout << dp[k][n] << endl;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
74 ms |
90360 KB |
Output is correct |
2 |
Correct |
73 ms |
90360 KB |
Output is correct |
3 |
Correct |
74 ms |
90488 KB |
Output is correct |
4 |
Correct |
73 ms |
90508 KB |
Output is correct |
5 |
Correct |
73 ms |
90360 KB |
Output is correct |
6 |
Correct |
74 ms |
90344 KB |
Output is correct |
7 |
Correct |
74 ms |
90360 KB |
Output is correct |
8 |
Correct |
74 ms |
90280 KB |
Output is correct |
9 |
Correct |
74 ms |
90360 KB |
Output is correct |
10 |
Correct |
73 ms |
90332 KB |
Output is correct |
11 |
Correct |
74 ms |
90444 KB |
Output is correct |
12 |
Correct |
74 ms |
90360 KB |
Output is correct |
13 |
Correct |
74 ms |
90360 KB |
Output is correct |
14 |
Correct |
74 ms |
90360 KB |
Output is correct |
15 |
Correct |
74 ms |
90360 KB |
Output is correct |
16 |
Correct |
74 ms |
90360 KB |
Output is correct |
17 |
Correct |
75 ms |
90360 KB |
Output is correct |
18 |
Correct |
74 ms |
90520 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
73 ms |
90360 KB |
Output is correct |
2 |
Correct |
73 ms |
90364 KB |
Output is correct |
3 |
Correct |
74 ms |
90360 KB |
Output is correct |
4 |
Correct |
75 ms |
90488 KB |
Output is correct |
5 |
Correct |
74 ms |
90360 KB |
Output is correct |
6 |
Correct |
75 ms |
90336 KB |
Output is correct |
7 |
Correct |
75 ms |
90488 KB |
Output is correct |
8 |
Correct |
74 ms |
90332 KB |
Output is correct |
9 |
Correct |
75 ms |
90384 KB |
Output is correct |
10 |
Correct |
77 ms |
90360 KB |
Output is correct |
11 |
Correct |
74 ms |
90340 KB |
Output is correct |
12 |
Correct |
74 ms |
90360 KB |
Output is correct |
13 |
Correct |
74 ms |
90360 KB |
Output is correct |
14 |
Correct |
74 ms |
90360 KB |
Output is correct |
15 |
Correct |
90 ms |
90360 KB |
Output is correct |
16 |
Correct |
88 ms |
90360 KB |
Output is correct |
17 |
Correct |
89 ms |
90332 KB |
Output is correct |
18 |
Correct |
89 ms |
90312 KB |
Output is correct |
19 |
Correct |
80 ms |
90344 KB |
Output is correct |
20 |
Correct |
77 ms |
90432 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
65 ms |
90364 KB |
Output is correct |
2 |
Correct |
75 ms |
90360 KB |
Output is correct |
3 |
Correct |
74 ms |
90360 KB |
Output is correct |
4 |
Correct |
75 ms |
90616 KB |
Output is correct |
5 |
Correct |
74 ms |
90360 KB |
Output is correct |
6 |
Correct |
75 ms |
90360 KB |
Output is correct |
7 |
Correct |
77 ms |
90360 KB |
Output is correct |
8 |
Correct |
77 ms |
90360 KB |
Output is correct |
9 |
Correct |
76 ms |
90360 KB |
Output is correct |
10 |
Correct |
75 ms |
90332 KB |
Output is correct |
11 |
Correct |
75 ms |
90460 KB |
Output is correct |
12 |
Correct |
75 ms |
90332 KB |
Output is correct |
13 |
Correct |
79 ms |
90392 KB |
Output is correct |
14 |
Correct |
76 ms |
90332 KB |
Output is correct |
15 |
Correct |
76 ms |
90488 KB |
Output is correct |
16 |
Correct |
75 ms |
90360 KB |
Output is correct |
17 |
Correct |
76 ms |
90360 KB |
Output is correct |
18 |
Correct |
76 ms |
90488 KB |
Output is correct |
19 |
Correct |
76 ms |
90360 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
94 ms |
90488 KB |
Output is correct |
2 |
Correct |
100 ms |
91096 KB |
Output is correct |
3 |
Correct |
104 ms |
91100 KB |
Output is correct |
4 |
Correct |
136 ms |
90952 KB |
Output is correct |
5 |
Correct |
244 ms |
91768 KB |
Output is correct |
6 |
Correct |
129 ms |
91868 KB |
Output is correct |
7 |
Correct |
177 ms |
91868 KB |
Output is correct |
8 |
Correct |
76 ms |
90404 KB |
Output is correct |
9 |
Correct |
75 ms |
90360 KB |
Output is correct |
10 |
Correct |
81 ms |
90360 KB |
Output is correct |
11 |
Correct |
75 ms |
90360 KB |
Output is correct |
12 |
Correct |
76 ms |
90360 KB |
Output is correct |
13 |
Correct |
76 ms |
90360 KB |
Output is correct |
14 |
Correct |
92 ms |
90564 KB |
Output is correct |
15 |
Correct |
80 ms |
90492 KB |
Output is correct |
16 |
Correct |
83 ms |
90460 KB |
Output is correct |
17 |
Correct |
99 ms |
91000 KB |
Output is correct |
18 |
Correct |
102 ms |
91000 KB |
Output is correct |
19 |
Correct |
135 ms |
91000 KB |
Output is correct |
20 |
Correct |
229 ms |
91888 KB |
Output is correct |
21 |
Correct |
133 ms |
91896 KB |
Output is correct |
22 |
Correct |
175 ms |
91860 KB |
Output is correct |
23 |
Correct |
130 ms |
91856 KB |
Output is correct |
24 |
Correct |
140 ms |
91760 KB |
Output is correct |
25 |
Correct |
234 ms |
91988 KB |
Output is correct |
26 |
Correct |
76 ms |
90360 KB |
Output is correct |
27 |
Correct |
91 ms |
90360 KB |
Output is correct |
28 |
Correct |
110 ms |
90708 KB |
Output is correct |
29 |
Correct |
82 ms |
90560 KB |
Output is correct |
30 |
Correct |
86 ms |
90616 KB |
Output is correct |
31 |
Correct |
101 ms |
91000 KB |
Output is correct |
32 |
Correct |
106 ms |
91384 KB |
Output is correct |
33 |
Correct |
165 ms |
91452 KB |
Output is correct |
34 |
Correct |
347 ms |
92696 KB |
Output is correct |
35 |
Correct |
136 ms |
92536 KB |
Output is correct |
36 |
Correct |
224 ms |
92720 KB |
Output is correct |
37 |
Correct |
80 ms |
90488 KB |
Output is correct |
38 |
Correct |
93 ms |
90460 KB |
Output is correct |
39 |
Correct |
75 ms |
90488 KB |
Output is correct |
40 |
Correct |
75 ms |
90336 KB |
Output is correct |
41 |
Correct |
88 ms |
90360 KB |
Output is correct |
42 |
Correct |
82 ms |
90300 KB |
Output is correct |