#include <bits/stdc++.h>
#define int long long
using namespace std;
const int inf=1e18;
const int maxn=3e5+5;
int n,k;
int a[maxn];
pair<int,int> alien(int lambda){
pair<int,int> dp[n+5][2]={};
dp[0][1].first=-inf;
for(int i=1;i<=n;i++){
dp[i][0]=max(dp[i-1][0],dp[i-1][1]);
pair<int,int> p1={dp[i-1][0].first+a[i]-lambda,dp[i-1][0].second+1};
pair<int,int> p2={dp[i-1][1].first+a[i],dp[i-1][1].second};
dp[i][1]=max(p1,p2);
}
return max(dp[n][1],dp[n][0]);
}
signed main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
cin>>n>>k;
for(int i=1;i<=n;i++) cin>>a[i];
int l=0,r=inf;
while(l<r){
int lambda=(l+r+1)>>1;
pair<int,int> tmp=alien(lambda);
if(tmp.second>=k) l=lambda;
else r=lambda-1;
}
cout<<alien(l).first+k*l;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
77 ms |
11608 KB |
Output is correct |
2 |
Correct |
68 ms |
12024 KB |
Output is correct |
3 |
Correct |
69 ms |
12124 KB |
Output is correct |
4 |
Correct |
72 ms |
11868 KB |
Output is correct |
5 |
Correct |
72 ms |
11908 KB |
Output is correct |
6 |
Correct |
69 ms |
11604 KB |
Output is correct |
7 |
Correct |
68 ms |
11612 KB |
Output is correct |
8 |
Correct |
69 ms |
11868 KB |
Output is correct |
9 |
Correct |
72 ms |
11840 KB |
Output is correct |
10 |
Correct |
68 ms |
11868 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
61 ms |
11868 KB |
Output is correct |
2 |
Correct |
62 ms |
12120 KB |
Output is correct |
3 |
Correct |
61 ms |
11864 KB |
Output is correct |
4 |
Correct |
68 ms |
11980 KB |
Output is correct |
5 |
Correct |
68 ms |
11604 KB |
Output is correct |
6 |
Correct |
64 ms |
11860 KB |
Output is correct |
7 |
Correct |
62 ms |
12120 KB |
Output is correct |
8 |
Correct |
72 ms |
11860 KB |
Output is correct |
9 |
Correct |
67 ms |
11612 KB |
Output is correct |
10 |
Correct |
61 ms |
12092 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
95 ms |
11860 KB |
Output is correct |
2 |
Correct |
93 ms |
11860 KB |
Output is correct |
3 |
Correct |
99 ms |
11924 KB |
Output is correct |
4 |
Correct |
92 ms |
11856 KB |
Output is correct |
5 |
Correct |
95 ms |
11868 KB |
Output is correct |
6 |
Correct |
95 ms |
11856 KB |
Output is correct |
7 |
Correct |
94 ms |
12116 KB |
Output is correct |
8 |
Correct |
92 ms |
11856 KB |
Output is correct |
9 |
Correct |
99 ms |
12120 KB |
Output is correct |
10 |
Correct |
99 ms |
12108 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 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 |
344 KB |
Output is correct |
7 |
Correct |
0 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 |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 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 |
344 KB |
Output is correct |
7 |
Correct |
0 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 |
1 ms |
344 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 |
1 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 |
344 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 |
344 KB |
Output is correct |
7 |
Correct |
0 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 |
1 ms |
344 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 |
1 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 |
1 ms |
348 KB |
Output is correct |
22 |
Correct |
1 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
348 KB |
Output is correct |
24 |
Correct |
1 ms |
348 KB |
Output is correct |
25 |
Correct |
1 ms |
344 KB |
Output is correct |
26 |
Correct |
1 ms |
348 KB |
Output is correct |
27 |
Correct |
1 ms |
348 KB |
Output is correct |
28 |
Correct |
1 ms |
348 KB |
Output is correct |
29 |
Correct |
1 ms |
348 KB |
Output is correct |
30 |
Correct |
1 ms |
348 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
77 ms |
11608 KB |
Output is correct |
2 |
Correct |
68 ms |
12024 KB |
Output is correct |
3 |
Correct |
69 ms |
12124 KB |
Output is correct |
4 |
Correct |
72 ms |
11868 KB |
Output is correct |
5 |
Correct |
72 ms |
11908 KB |
Output is correct |
6 |
Correct |
69 ms |
11604 KB |
Output is correct |
7 |
Correct |
68 ms |
11612 KB |
Output is correct |
8 |
Correct |
69 ms |
11868 KB |
Output is correct |
9 |
Correct |
72 ms |
11840 KB |
Output is correct |
10 |
Correct |
68 ms |
11868 KB |
Output is correct |
11 |
Correct |
61 ms |
11868 KB |
Output is correct |
12 |
Correct |
62 ms |
12120 KB |
Output is correct |
13 |
Correct |
61 ms |
11864 KB |
Output is correct |
14 |
Correct |
68 ms |
11980 KB |
Output is correct |
15 |
Correct |
68 ms |
11604 KB |
Output is correct |
16 |
Correct |
64 ms |
11860 KB |
Output is correct |
17 |
Correct |
62 ms |
12120 KB |
Output is correct |
18 |
Correct |
72 ms |
11860 KB |
Output is correct |
19 |
Correct |
67 ms |
11612 KB |
Output is correct |
20 |
Correct |
61 ms |
12092 KB |
Output is correct |
21 |
Correct |
95 ms |
11860 KB |
Output is correct |
22 |
Correct |
93 ms |
11860 KB |
Output is correct |
23 |
Correct |
99 ms |
11924 KB |
Output is correct |
24 |
Correct |
92 ms |
11856 KB |
Output is correct |
25 |
Correct |
95 ms |
11868 KB |
Output is correct |
26 |
Correct |
95 ms |
11856 KB |
Output is correct |
27 |
Correct |
94 ms |
12116 KB |
Output is correct |
28 |
Correct |
92 ms |
11856 KB |
Output is correct |
29 |
Correct |
99 ms |
12120 KB |
Output is correct |
30 |
Correct |
99 ms |
12108 KB |
Output is correct |
31 |
Correct |
0 ms |
344 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 |
344 KB |
Output is correct |
37 |
Correct |
0 ms |
348 KB |
Output is correct |
38 |
Correct |
0 ms |
348 KB |
Output is correct |
39 |
Correct |
0 ms |
348 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 |
1 ms |
344 KB |
Output is correct |
44 |
Correct |
0 ms |
344 KB |
Output is correct |
45 |
Correct |
0 ms |
348 KB |
Output is correct |
46 |
Correct |
0 ms |
348 KB |
Output is correct |
47 |
Correct |
1 ms |
348 KB |
Output is correct |
48 |
Correct |
0 ms |
348 KB |
Output is correct |
49 |
Correct |
0 ms |
348 KB |
Output is correct |
50 |
Correct |
0 ms |
348 KB |
Output is correct |
51 |
Correct |
1 ms |
348 KB |
Output is correct |
52 |
Correct |
1 ms |
348 KB |
Output is correct |
53 |
Correct |
1 ms |
348 KB |
Output is correct |
54 |
Correct |
1 ms |
348 KB |
Output is correct |
55 |
Correct |
1 ms |
344 KB |
Output is correct |
56 |
Correct |
1 ms |
348 KB |
Output is correct |
57 |
Correct |
1 ms |
348 KB |
Output is correct |
58 |
Correct |
1 ms |
348 KB |
Output is correct |
59 |
Correct |
1 ms |
348 KB |
Output is correct |
60 |
Correct |
1 ms |
348 KB |
Output is correct |
61 |
Correct |
120 ms |
11860 KB |
Output is correct |
62 |
Correct |
122 ms |
12172 KB |
Output is correct |
63 |
Correct |
106 ms |
11844 KB |
Output is correct |
64 |
Correct |
127 ms |
11864 KB |
Output is correct |
65 |
Correct |
124 ms |
12028 KB |
Output is correct |
66 |
Correct |
130 ms |
11868 KB |
Output is correct |
67 |
Correct |
136 ms |
11860 KB |
Output is correct |
68 |
Correct |
96 ms |
12080 KB |
Output is correct |
69 |
Correct |
93 ms |
11868 KB |
Output is correct |
70 |
Correct |
92 ms |
11604 KB |
Output is correct |