#include<bits/stdc++.h>
using namespace std;
using lol=long long int;
#define endl "\n"
const lol mod1=1e9+7,mod2=998244353;
const lol inf=1e18+8;
const double eps=1e-12;
const int N=2*1e5+5;
#include <ext/pb_ds/assoc_container.hpp> // Common file
#include <ext/pb_ds/tree_policy.hpp> // Including tree_order_statistics_node_update
using namespace __gnu_pbds;
typedef tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update> ordered_set;
//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL);
int _=1;
//cin>>_;
while(_--)
{
int n,k;
cin>>n>>k;
vector<vector<lol> > dp(n,vector<lol>(k+1,inf));
vector<lol> v(n);
for(int i=0;i<n;i++)
{
cin>>v[i];
}
vector<int> psg(n,-1);
stack<lol> st;
for(int i=0;i<n;i++)
{
while(!st.empty() && v[st.top()]<v[i]) st.pop();
if(!st.empty()) psg[i]=st.top();
st.push(i);
}
lol mx=0;
for(int i=0;i<n;i++)
{
mx=max(mx,v[i]);
dp[i][1]=mx;
}
for(int l=2;l<=k;l++)
{
lol mnz=inf;
vector<lol> mf(n,inf);
stack<pair<int,lol> > stf;
for(int i=0;i<n;i++)
{
while(!stf.empty() && v[stf.top().first]<v[i])
{
lol x=stf.top().second;
stf.pop();
if(!stf.empty()) stf.top().second=min(x,stf.top().second);
}
if(!stf.empty()) mf[i]=stf.top().second;
stf.push({i,dp[i][l-1]});
}
for(int i=0;i<n;i++)
{
int p=psg[i];
if(p==-1)
{
dp[i][l]=min(v[i]+mnz,inf);
}else
{
lol mn=min(mf[i]+v[i],dp[p][l]);
dp[i][l]=min(mn,inf);
}
mnz=min(dp[i][l-1],mnz);
}
}
/*for(int i=1;i<=k;i++)
{
for(int j=0;j<n;j++)
{
cout<<dp[j][i]<<" ";
}
cout<<endl;
}*/
cout<<dp[n-1][k];
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
12 |
Correct |
0 ms |
204 KB |
Output is correct |
13 |
Correct |
0 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
0 ms |
204 KB |
Output is correct |
17 |
Correct |
0 ms |
204 KB |
Output is correct |
18 |
Correct |
0 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
0 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
0 ms |
204 KB |
Output is correct |
13 |
Correct |
0 ms |
204 KB |
Output is correct |
14 |
Correct |
0 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
0 ms |
204 KB |
Output is correct |
17 |
Correct |
0 ms |
204 KB |
Output is correct |
18 |
Correct |
0 ms |
204 KB |
Output is correct |
19 |
Correct |
0 ms |
204 KB |
Output is correct |
20 |
Correct |
0 ms |
204 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
12 |
Correct |
0 ms |
204 KB |
Output is correct |
13 |
Correct |
0 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
0 ms |
204 KB |
Output is correct |
17 |
Correct |
0 ms |
204 KB |
Output is correct |
18 |
Correct |
0 ms |
204 KB |
Output is correct |
19 |
Correct |
0 ms |
204 KB |
Output is correct |
20 |
Correct |
0 ms |
204 KB |
Output is correct |
21 |
Correct |
0 ms |
204 KB |
Output is correct |
22 |
Correct |
0 ms |
204 KB |
Output is correct |
23 |
Correct |
0 ms |
204 KB |
Output is correct |
24 |
Correct |
0 ms |
204 KB |
Output is correct |
25 |
Correct |
0 ms |
204 KB |
Output is correct |
26 |
Correct |
0 ms |
204 KB |
Output is correct |
27 |
Correct |
0 ms |
204 KB |
Output is correct |
28 |
Correct |
0 ms |
204 KB |
Output is correct |
29 |
Correct |
1 ms |
204 KB |
Output is correct |
30 |
Correct |
0 ms |
204 KB |
Output is correct |
31 |
Correct |
0 ms |
204 KB |
Output is correct |
32 |
Correct |
0 ms |
204 KB |
Output is correct |
33 |
Correct |
0 ms |
204 KB |
Output is correct |
34 |
Correct |
0 ms |
204 KB |
Output is correct |
35 |
Correct |
0 ms |
204 KB |
Output is correct |
36 |
Correct |
0 ms |
204 KB |
Output is correct |
37 |
Correct |
0 ms |
204 KB |
Output is correct |
38 |
Correct |
0 ms |
204 KB |
Output is correct |
39 |
Correct |
0 ms |
332 KB |
Output is correct |
40 |
Correct |
0 ms |
204 KB |
Output is correct |
41 |
Correct |
0 ms |
204 KB |
Output is correct |
42 |
Correct |
0 ms |
204 KB |
Output is correct |
43 |
Correct |
1 ms |
204 KB |
Output is correct |
44 |
Correct |
0 ms |
204 KB |
Output is correct |
45 |
Correct |
0 ms |
204 KB |
Output is correct |
46 |
Correct |
0 ms |
204 KB |
Output is correct |
47 |
Correct |
0 ms |
204 KB |
Output is correct |
48 |
Correct |
0 ms |
204 KB |
Output is correct |
49 |
Correct |
0 ms |
204 KB |
Output is correct |
50 |
Correct |
0 ms |
204 KB |
Output is correct |
51 |
Correct |
0 ms |
332 KB |
Output is correct |
52 |
Correct |
0 ms |
332 KB |
Output is correct |
53 |
Correct |
1 ms |
332 KB |
Output is correct |
54 |
Correct |
0 ms |
332 KB |
Output is correct |
55 |
Correct |
0 ms |
332 KB |
Output is correct |
56 |
Correct |
0 ms |
332 KB |
Output is correct |
57 |
Correct |
1 ms |
448 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
0 ms |
204 KB |
Output is correct |
6 |
Correct |
0 ms |
204 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
0 ms |
204 KB |
Output is correct |
9 |
Correct |
0 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
0 ms |
204 KB |
Output is correct |
12 |
Correct |
0 ms |
204 KB |
Output is correct |
13 |
Correct |
0 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
0 ms |
204 KB |
Output is correct |
17 |
Correct |
0 ms |
204 KB |
Output is correct |
18 |
Correct |
0 ms |
204 KB |
Output is correct |
19 |
Correct |
0 ms |
204 KB |
Output is correct |
20 |
Correct |
0 ms |
204 KB |
Output is correct |
21 |
Correct |
0 ms |
204 KB |
Output is correct |
22 |
Correct |
0 ms |
204 KB |
Output is correct |
23 |
Correct |
0 ms |
204 KB |
Output is correct |
24 |
Correct |
0 ms |
204 KB |
Output is correct |
25 |
Correct |
0 ms |
204 KB |
Output is correct |
26 |
Correct |
0 ms |
204 KB |
Output is correct |
27 |
Correct |
0 ms |
204 KB |
Output is correct |
28 |
Correct |
0 ms |
204 KB |
Output is correct |
29 |
Correct |
1 ms |
204 KB |
Output is correct |
30 |
Correct |
0 ms |
204 KB |
Output is correct |
31 |
Correct |
0 ms |
204 KB |
Output is correct |
32 |
Correct |
0 ms |
204 KB |
Output is correct |
33 |
Correct |
0 ms |
204 KB |
Output is correct |
34 |
Correct |
0 ms |
204 KB |
Output is correct |
35 |
Correct |
0 ms |
204 KB |
Output is correct |
36 |
Correct |
0 ms |
204 KB |
Output is correct |
37 |
Correct |
0 ms |
204 KB |
Output is correct |
38 |
Correct |
0 ms |
204 KB |
Output is correct |
39 |
Correct |
0 ms |
332 KB |
Output is correct |
40 |
Correct |
0 ms |
204 KB |
Output is correct |
41 |
Correct |
0 ms |
204 KB |
Output is correct |
42 |
Correct |
0 ms |
204 KB |
Output is correct |
43 |
Correct |
1 ms |
204 KB |
Output is correct |
44 |
Correct |
0 ms |
204 KB |
Output is correct |
45 |
Correct |
0 ms |
204 KB |
Output is correct |
46 |
Correct |
0 ms |
204 KB |
Output is correct |
47 |
Correct |
0 ms |
204 KB |
Output is correct |
48 |
Correct |
0 ms |
204 KB |
Output is correct |
49 |
Correct |
0 ms |
204 KB |
Output is correct |
50 |
Correct |
0 ms |
204 KB |
Output is correct |
51 |
Correct |
0 ms |
332 KB |
Output is correct |
52 |
Correct |
0 ms |
332 KB |
Output is correct |
53 |
Correct |
1 ms |
332 KB |
Output is correct |
54 |
Correct |
0 ms |
332 KB |
Output is correct |
55 |
Correct |
0 ms |
332 KB |
Output is correct |
56 |
Correct |
0 ms |
332 KB |
Output is correct |
57 |
Correct |
1 ms |
448 KB |
Output is correct |
58 |
Correct |
6 ms |
2892 KB |
Output is correct |
59 |
Correct |
7 ms |
3276 KB |
Output is correct |
60 |
Correct |
12 ms |
5708 KB |
Output is correct |
61 |
Correct |
99 ms |
29372 KB |
Output is correct |
62 |
Correct |
413 ms |
84456 KB |
Output is correct |
63 |
Correct |
21 ms |
9932 KB |
Output is correct |
64 |
Correct |
179 ms |
42844 KB |
Output is correct |
65 |
Correct |
1 ms |
332 KB |
Output is correct |
66 |
Correct |
0 ms |
312 KB |
Output is correct |
67 |
Correct |
0 ms |
332 KB |
Output is correct |
68 |
Correct |
0 ms |
332 KB |
Output is correct |
69 |
Correct |
1 ms |
332 KB |
Output is correct |
70 |
Correct |
1 ms |
460 KB |
Output is correct |
71 |
Correct |
25 ms |
8780 KB |
Output is correct |
72 |
Correct |
3 ms |
1100 KB |
Output is correct |
73 |
Correct |
7 ms |
2892 KB |
Output is correct |
74 |
Correct |
7 ms |
3532 KB |
Output is correct |
75 |
Correct |
14 ms |
6000 KB |
Output is correct |
76 |
Correct |
110 ms |
29592 KB |
Output is correct |
77 |
Correct |
408 ms |
85160 KB |
Output is correct |
78 |
Correct |
20 ms |
9932 KB |
Output is correct |
79 |
Correct |
184 ms |
42780 KB |
Output is correct |
80 |
Correct |
18 ms |
7628 KB |
Output is correct |
81 |
Correct |
42 ms |
14680 KB |
Output is correct |
82 |
Correct |
417 ms |
85060 KB |
Output is correct |
83 |
Correct |
1 ms |
332 KB |
Output is correct |
84 |
Correct |
1 ms |
460 KB |
Output is correct |
85 |
Correct |
25 ms |
8908 KB |
Output is correct |
86 |
Correct |
2 ms |
1224 KB |
Output is correct |
87 |
Correct |
8 ms |
3020 KB |
Output is correct |
88 |
Correct |
7 ms |
3660 KB |
Output is correct |
89 |
Correct |
15 ms |
6500 KB |
Output is correct |
90 |
Correct |
132 ms |
30260 KB |
Output is correct |
91 |
Correct |
471 ms |
86268 KB |
Output is correct |
92 |
Correct |
22 ms |
11076 KB |
Output is correct |
93 |
Correct |
214 ms |
44048 KB |
Output is correct |
94 |
Correct |
2 ms |
1100 KB |
Output is correct |
95 |
Correct |
24 ms |
8780 KB |
Output is correct |
96 |
Correct |
1 ms |
460 KB |
Output is correct |
97 |
Correct |
1 ms |
332 KB |
Output is correct |
98 |
Correct |
0 ms |
204 KB |
Output is correct |
99 |
Correct |
0 ms |
204 KB |
Output is correct |