#include<bits/stdc++.h>
#define el '\n'
#define fi first
#define sc second
#define int ll
#define pii pair<int, int>
#define all(v) v.begin(), v.end()
using namespace std;
using ll=long long;
using ull=unsigned long long;
using ld=long double;
const int mod=1e9+7;
const int N=1e5+11;
int n, a[N], k, dp[102][N];
void sub1()
{
for(int i=1;i<=k;i++) for(int j=1;j<=n;j++) dp[i][j]=1e18;
int mx=0;
for(int i=1;i<=n;i++)
{
mx=max(mx, a[i]);
dp[1][i]=mx;
}
for(int i=2;i<=k;i++)
{
for(int j=1;j<=n;j++)
{
int mx=0;
for(int o=j;o>=i;o--)
{
mx=max(mx, a[o]);
dp[i][j]=min(dp[i][j], dp[i-1][o-1]+mx);
}
}
}
cout << dp[k][n];
}
void sub2()
{
for(int i=0;i<=k;i++) for(int j=0;j<=n;j++) dp[i][j]=1e18;
int mx=0;
for(int i=1;i<=n;i++)
{
mx=max(mx, a[i]);
dp[1][i]=mx;
}
for(int i=2;i<=k;i++)
{
stack<pii> st;
for(int j=i;j<=n;j++)
{
int s=dp[i-1][j-1];
while(!st.empty() && a[st.top().fi]<=a[j])
{
s=min(s, st.top().sc);
st.pop();
}
if(st.empty() || s+a[j]<a[st.top().fi]+st.top().sc) st.emplace(j, s);
dp[i][j]=a[st.top().fi]+st.top().sc;
}
}
cout << dp[k][n];
}
void sol()
{
cin >> n >> k;
for(int i=1;i<=n;i++) cin >> a[i];
if(n<=100) sub1();
else sub2();
// sub2();
}
signed main()
{
// freopen("divisor.INP", "r", stdin);
// freopen("divisor.OUT", "w", stdout);
ios_base::sync_with_stdio(0);
cin.tie(0);
int t=1;
//cin >> t;
while(t--)
{
sol();
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
408 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
0 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
0 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
348 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
408 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
0 ms |
348 KB |
Output is correct |
38 |
Correct |
0 ms |
348 KB |
Output is correct |
39 |
Correct |
1 ms |
604 KB |
Output is correct |
40 |
Correct |
0 ms |
348 KB |
Output is correct |
41 |
Correct |
0 ms |
348 KB |
Output is correct |
42 |
Correct |
0 ms |
348 KB |
Output is correct |
43 |
Correct |
0 ms |
348 KB |
Output is correct |
44 |
Correct |
0 ms |
348 KB |
Output is correct |
45 |
Correct |
1 ms |
348 KB |
Output is correct |
46 |
Correct |
0 ms |
348 KB |
Output is correct |
47 |
Correct |
0 ms |
344 KB |
Output is correct |
48 |
Correct |
0 ms |
344 KB |
Output is correct |
49 |
Correct |
0 ms |
348 KB |
Output is correct |
50 |
Correct |
1 ms |
348 KB |
Output is correct |
51 |
Correct |
1 ms |
616 KB |
Output is correct |
52 |
Correct |
0 ms |
604 KB |
Output is correct |
53 |
Correct |
0 ms |
860 KB |
Output is correct |
54 |
Correct |
1 ms |
860 KB |
Output is correct |
55 |
Correct |
0 ms |
604 KB |
Output is correct |
56 |
Correct |
0 ms |
860 KB |
Output is correct |
57 |
Correct |
1 ms |
860 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
408 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
348 KB |
Output is correct |
10 |
Correct |
0 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
0 ms |
348 KB |
Output is correct |
13 |
Correct |
0 ms |
348 KB |
Output is correct |
14 |
Correct |
0 ms |
344 KB |
Output is correct |
15 |
Correct |
0 ms |
348 KB |
Output is correct |
16 |
Correct |
0 ms |
348 KB |
Output is correct |
17 |
Correct |
0 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
0 ms |
348 KB |
Output is correct |
20 |
Correct |
0 ms |
348 KB |
Output is correct |
21 |
Correct |
0 ms |
348 KB |
Output is correct |
22 |
Correct |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
0 ms |
348 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
348 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
348 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Correct |
0 ms |
348 KB |
Output is correct |
30 |
Correct |
0 ms |
348 KB |
Output is correct |
31 |
Correct |
0 ms |
348 KB |
Output is correct |
32 |
Correct |
0 ms |
348 KB |
Output is correct |
33 |
Correct |
0 ms |
348 KB |
Output is correct |
34 |
Correct |
0 ms |
348 KB |
Output is correct |
35 |
Correct |
0 ms |
348 KB |
Output is correct |
36 |
Correct |
0 ms |
348 KB |
Output is correct |
37 |
Correct |
0 ms |
348 KB |
Output is correct |
38 |
Correct |
0 ms |
348 KB |
Output is correct |
39 |
Correct |
1 ms |
604 KB |
Output is correct |
40 |
Correct |
0 ms |
348 KB |
Output is correct |
41 |
Correct |
0 ms |
348 KB |
Output is correct |
42 |
Correct |
0 ms |
348 KB |
Output is correct |
43 |
Correct |
0 ms |
348 KB |
Output is correct |
44 |
Correct |
0 ms |
348 KB |
Output is correct |
45 |
Correct |
1 ms |
348 KB |
Output is correct |
46 |
Correct |
0 ms |
348 KB |
Output is correct |
47 |
Correct |
0 ms |
344 KB |
Output is correct |
48 |
Correct |
0 ms |
344 KB |
Output is correct |
49 |
Correct |
0 ms |
348 KB |
Output is correct |
50 |
Correct |
1 ms |
348 KB |
Output is correct |
51 |
Correct |
1 ms |
616 KB |
Output is correct |
52 |
Correct |
0 ms |
604 KB |
Output is correct |
53 |
Correct |
0 ms |
860 KB |
Output is correct |
54 |
Correct |
1 ms |
860 KB |
Output is correct |
55 |
Correct |
0 ms |
604 KB |
Output is correct |
56 |
Correct |
0 ms |
860 KB |
Output is correct |
57 |
Correct |
1 ms |
860 KB |
Output is correct |
58 |
Correct |
4 ms |
2652 KB |
Output is correct |
59 |
Correct |
4 ms |
1628 KB |
Output is correct |
60 |
Correct |
6 ms |
3932 KB |
Output is correct |
61 |
Correct |
40 ms |
27996 KB |
Output is correct |
62 |
Correct |
106 ms |
80980 KB |
Output is correct |
63 |
Correct |
9 ms |
4960 KB |
Output is correct |
64 |
Correct |
63 ms |
37836 KB |
Output is correct |
65 |
Correct |
1 ms |
604 KB |
Output is correct |
66 |
Correct |
1 ms |
604 KB |
Output is correct |
67 |
Correct |
1 ms |
728 KB |
Output is correct |
68 |
Correct |
1 ms |
604 KB |
Output is correct |
69 |
Correct |
1 ms |
348 KB |
Output is correct |
70 |
Correct |
1 ms |
604 KB |
Output is correct |
71 |
Correct |
10 ms |
8984 KB |
Output is correct |
72 |
Correct |
1 ms |
860 KB |
Output is correct |
73 |
Correct |
3 ms |
2652 KB |
Output is correct |
74 |
Correct |
3 ms |
1628 KB |
Output is correct |
75 |
Correct |
5 ms |
3932 KB |
Output is correct |
76 |
Correct |
40 ms |
27996 KB |
Output is correct |
77 |
Correct |
95 ms |
80920 KB |
Output is correct |
78 |
Correct |
9 ms |
4952 KB |
Output is correct |
79 |
Correct |
58 ms |
37688 KB |
Output is correct |
80 |
Correct |
7 ms |
3416 KB |
Output is correct |
81 |
Correct |
15 ms |
10328 KB |
Output is correct |
82 |
Correct |
90 ms |
80752 KB |
Output is correct |
83 |
Correct |
1 ms |
348 KB |
Output is correct |
84 |
Correct |
0 ms |
604 KB |
Output is correct |
85 |
Correct |
12 ms |
9044 KB |
Output is correct |
86 |
Correct |
1 ms |
860 KB |
Output is correct |
87 |
Correct |
5 ms |
2612 KB |
Output is correct |
88 |
Correct |
3 ms |
1628 KB |
Output is correct |
89 |
Correct |
7 ms |
4188 KB |
Output is correct |
90 |
Correct |
47 ms |
28508 KB |
Output is correct |
91 |
Correct |
135 ms |
81564 KB |
Output is correct |
92 |
Correct |
9 ms |
5468 KB |
Output is correct |
93 |
Correct |
60 ms |
38512 KB |
Output is correct |
94 |
Correct |
2 ms |
856 KB |
Output is correct |
95 |
Correct |
9 ms |
8792 KB |
Output is correct |
96 |
Correct |
0 ms |
604 KB |
Output is correct |
97 |
Correct |
0 ms |
348 KB |
Output is correct |
98 |
Correct |
0 ms |
348 KB |
Output is correct |
99 |
Correct |
1 ms |
348 KB |
Output is correct |