/*
* Created: 2022-07-06 12:51
*/
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
using namespace chrono;
// using namespace atcoder
template <typename T>
using ordered_set =
tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
typedef long long ll;
typedef long double ld;
const ll inf = 1e18;
#define pii pair<int,int>
#define pll pair<ll,ll>
#define vi vector<int>
#define vll vector<ll>
#define rep(i, a, b) for(int i = (a);i<(b);i++)
#define repn(i, a, b) for(int i = (a);i>=(b);i--)
#define ss second
#define ff first
#define mkp make_pair
#define pb push_back
#define all(x) (x).begin(), (x).end()
const int N = 100'010;
long long T[2*N];
int n;
int sz;
void build(long long a[]) {
for(int i = 0;i<sz;i++)T[i+sz]=a[i];
for(int i = sz-1;i>0;i--)T[i]=min(T[i<<1],T[i<<1|1]);
}
ll query(int l, int r) {
r++;
ll res=inf;
for(l+=sz,r+=sz;l<r;l>>=1ll,r>>=1ll) {
if(l&1)res=min(res, T[l++]);
if(r&1)res=min(res, T[--r]);
}
return res;
}
void solve() {
int k;
cin >> n >> k;
sz=n+1;
ll dp[k+1][n+1];
ll a[n+1];
rep(i, 1, n+1)cin >> a[i];
a[0]=inf;
vector<ll> stk;
vector<ll> pr(n+1);
stk.push_back(-1);
rep(i, 1, n+1) {
while(stk.back() != -1 and a[stk.back()]<=a[i])stk.pop_back();
pr[i]=stk.back();
stk.pb(i);
}
rep(i, 1, k+1)dp[i][0]=inf;
rep(i, 1, n+1)dp[0][i]=inf;
dp[0][0]=0;
rep(j, 1, k+1) {
build(dp[j-1]);
rep(i, 1, n+1) {
if(pr[i]!=-1)dp[j][i] = min(query(pr[i],i-1)+a[i], dp[j][pr[i]]);
else dp[j][i]=query(pr[i]+1,i-1)+a[i];
}
}
cout<<dp[k][n]<<"\n";
}
int main () {
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
int t = 1;
while(t--) {
solve();
}
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
1 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| 7 |
Correct |
1 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
0 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
0 ms |
212 KB |
Output is correct |
| 13 |
Correct |
1 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
1 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
1 ms |
212 KB |
Output is correct |
| 20 |
Correct |
1 ms |
212 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
1 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
1 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Correct |
0 ms |
212 KB |
Output is correct |
| 24 |
Correct |
0 ms |
212 KB |
Output is correct |
| 25 |
Correct |
1 ms |
212 KB |
Output is correct |
| 26 |
Correct |
1 ms |
212 KB |
Output is correct |
| 27 |
Correct |
0 ms |
212 KB |
Output is correct |
| 28 |
Correct |
0 ms |
212 KB |
Output is correct |
| 29 |
Correct |
0 ms |
212 KB |
Output is correct |
| 30 |
Correct |
0 ms |
212 KB |
Output is correct |
| 31 |
Correct |
1 ms |
212 KB |
Output is correct |
| 32 |
Correct |
0 ms |
212 KB |
Output is correct |
| 33 |
Correct |
0 ms |
212 KB |
Output is correct |
| 34 |
Correct |
0 ms |
212 KB |
Output is correct |
| 35 |
Correct |
1 ms |
212 KB |
Output is correct |
| 36 |
Correct |
0 ms |
212 KB |
Output is correct |
| 37 |
Correct |
1 ms |
212 KB |
Output is correct |
| 38 |
Correct |
1 ms |
212 KB |
Output is correct |
| 39 |
Correct |
1 ms |
340 KB |
Output is correct |
| 40 |
Correct |
1 ms |
332 KB |
Output is correct |
| 41 |
Correct |
1 ms |
212 KB |
Output is correct |
| 42 |
Correct |
1 ms |
212 KB |
Output is correct |
| 43 |
Correct |
1 ms |
328 KB |
Output is correct |
| 44 |
Correct |
1 ms |
212 KB |
Output is correct |
| 45 |
Correct |
1 ms |
332 KB |
Output is correct |
| 46 |
Correct |
1 ms |
212 KB |
Output is correct |
| 47 |
Correct |
1 ms |
328 KB |
Output is correct |
| 48 |
Correct |
1 ms |
212 KB |
Output is correct |
| 49 |
Correct |
1 ms |
212 KB |
Output is correct |
| 50 |
Correct |
0 ms |
212 KB |
Output is correct |
| 51 |
Correct |
1 ms |
340 KB |
Output is correct |
| 52 |
Correct |
1 ms |
340 KB |
Output is correct |
| 53 |
Correct |
1 ms |
340 KB |
Output is correct |
| 54 |
Correct |
1 ms |
340 KB |
Output is correct |
| 55 |
Correct |
0 ms |
332 KB |
Output is correct |
| 56 |
Correct |
1 ms |
340 KB |
Output is correct |
| 57 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
0 ms |
212 KB |
Output is correct |
| 8 |
Correct |
0 ms |
212 KB |
Output is correct |
| 9 |
Correct |
0 ms |
212 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
0 ms |
212 KB |
Output is correct |
| 12 |
Correct |
1 ms |
212 KB |
Output is correct |
| 13 |
Correct |
0 ms |
212 KB |
Output is correct |
| 14 |
Correct |
0 ms |
212 KB |
Output is correct |
| 15 |
Correct |
0 ms |
212 KB |
Output is correct |
| 16 |
Correct |
0 ms |
212 KB |
Output is correct |
| 17 |
Correct |
0 ms |
212 KB |
Output is correct |
| 18 |
Correct |
0 ms |
212 KB |
Output is correct |
| 19 |
Correct |
1 ms |
212 KB |
Output is correct |
| 20 |
Correct |
0 ms |
212 KB |
Output is correct |
| 21 |
Correct |
0 ms |
212 KB |
Output is correct |
| 22 |
Correct |
0 ms |
212 KB |
Output is correct |
| 23 |
Correct |
0 ms |
212 KB |
Output is correct |
| 24 |
Correct |
0 ms |
212 KB |
Output is correct |
| 25 |
Correct |
1 ms |
212 KB |
Output is correct |
| 26 |
Correct |
1 ms |
212 KB |
Output is correct |
| 27 |
Correct |
0 ms |
212 KB |
Output is correct |
| 28 |
Correct |
0 ms |
212 KB |
Output is correct |
| 29 |
Correct |
0 ms |
212 KB |
Output is correct |
| 30 |
Correct |
0 ms |
212 KB |
Output is correct |
| 31 |
Correct |
1 ms |
212 KB |
Output is correct |
| 32 |
Correct |
0 ms |
212 KB |
Output is correct |
| 33 |
Correct |
0 ms |
212 KB |
Output is correct |
| 34 |
Correct |
0 ms |
212 KB |
Output is correct |
| 35 |
Correct |
1 ms |
212 KB |
Output is correct |
| 36 |
Correct |
0 ms |
212 KB |
Output is correct |
| 37 |
Correct |
1 ms |
212 KB |
Output is correct |
| 38 |
Correct |
1 ms |
212 KB |
Output is correct |
| 39 |
Correct |
1 ms |
340 KB |
Output is correct |
| 40 |
Correct |
1 ms |
332 KB |
Output is correct |
| 41 |
Correct |
1 ms |
212 KB |
Output is correct |
| 42 |
Correct |
1 ms |
212 KB |
Output is correct |
| 43 |
Correct |
1 ms |
328 KB |
Output is correct |
| 44 |
Correct |
1 ms |
212 KB |
Output is correct |
| 45 |
Correct |
1 ms |
332 KB |
Output is correct |
| 46 |
Correct |
1 ms |
212 KB |
Output is correct |
| 47 |
Correct |
1 ms |
328 KB |
Output is correct |
| 48 |
Correct |
1 ms |
212 KB |
Output is correct |
| 49 |
Correct |
1 ms |
212 KB |
Output is correct |
| 50 |
Correct |
0 ms |
212 KB |
Output is correct |
| 51 |
Correct |
1 ms |
340 KB |
Output is correct |
| 52 |
Correct |
1 ms |
340 KB |
Output is correct |
| 53 |
Correct |
1 ms |
340 KB |
Output is correct |
| 54 |
Correct |
1 ms |
340 KB |
Output is correct |
| 55 |
Correct |
0 ms |
332 KB |
Output is correct |
| 56 |
Correct |
1 ms |
340 KB |
Output is correct |
| 57 |
Correct |
1 ms |
340 KB |
Output is correct |
| 58 |
Correct |
11 ms |
2644 KB |
Output is correct |
| 59 |
Correct |
7 ms |
2640 KB |
Output is correct |
| 60 |
Correct |
17 ms |
4692 KB |
Output is correct |
| 61 |
Correct |
141 ms |
28752 KB |
Output is correct |
| 62 |
Correct |
371 ms |
83068 KB |
Output is correct |
| 63 |
Correct |
21 ms |
7252 KB |
Output is correct |
| 64 |
Correct |
177 ms |
40012 KB |
Output is correct |
| 65 |
Correct |
0 ms |
340 KB |
Output is correct |
| 66 |
Correct |
0 ms |
340 KB |
Output is correct |
| 67 |
Correct |
0 ms |
340 KB |
Output is correct |
| 68 |
Correct |
1 ms |
340 KB |
Output is correct |
| 69 |
Correct |
1 ms |
340 KB |
Output is correct |
| 70 |
Correct |
1 ms |
340 KB |
Output is correct |
| 71 |
Correct |
23 ms |
8532 KB |
Output is correct |
| 72 |
Correct |
2 ms |
852 KB |
Output is correct |
| 73 |
Correct |
6 ms |
2644 KB |
Output is correct |
| 74 |
Correct |
6 ms |
2632 KB |
Output is correct |
| 75 |
Correct |
11 ms |
4784 KB |
Output is correct |
| 76 |
Correct |
71 ms |
28708 KB |
Output is correct |
| 77 |
Correct |
206 ms |
83148 KB |
Output is correct |
| 78 |
Correct |
21 ms |
7164 KB |
Output is correct |
| 79 |
Correct |
100 ms |
40084 KB |
Output is correct |
| 80 |
Correct |
12 ms |
5588 KB |
Output is correct |
| 81 |
Correct |
30 ms |
12648 KB |
Output is correct |
| 82 |
Correct |
203 ms |
83140 KB |
Output is correct |
| 83 |
Correct |
1 ms |
340 KB |
Output is correct |
| 84 |
Correct |
1 ms |
340 KB |
Output is correct |
| 85 |
Correct |
15 ms |
8632 KB |
Output is correct |
| 86 |
Correct |
3 ms |
980 KB |
Output is correct |
| 87 |
Correct |
6 ms |
3028 KB |
Output is correct |
| 88 |
Correct |
6 ms |
2904 KB |
Output is correct |
| 89 |
Correct |
9 ms |
4948 KB |
Output is correct |
| 90 |
Correct |
54 ms |
28976 KB |
Output is correct |
| 91 |
Correct |
153 ms |
83552 KB |
Output is correct |
| 92 |
Correct |
16 ms |
7676 KB |
Output is correct |
| 93 |
Correct |
83 ms |
40480 KB |
Output is correct |
| 94 |
Correct |
3 ms |
852 KB |
Output is correct |
| 95 |
Correct |
38 ms |
8600 KB |
Output is correct |
| 96 |
Correct |
1 ms |
340 KB |
Output is correct |
| 97 |
Correct |
1 ms |
340 KB |
Output is correct |
| 98 |
Correct |
0 ms |
212 KB |
Output is correct |
| 99 |
Correct |
1 ms |
328 KB |
Output is correct |
