#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define MP make_pair
#define EPS 0.00001
int n,k;
vector<ll> W;
pair<ll,ll> solve(ll pen) {
pair<ll,ll> zero = {0,0};
pair<ll,ll> one = {W[0] - pen, 1};
for(int i = 1; i < n; i++) {
pair<ll,ll> _zero, _one;
_zero = max(zero, one);
_one = max(MP(one.first + W[i], one.second), MP(zero.first + W[i] - pen, zero.second + 1));
zero = _zero;
one = _one;
}
return max(zero, one);
}
int main() {
ios_base::sync_with_stdio(0);
cin >> n >> k;
ll lower = 0;
ll upper = 10000000000000;
W.resize(n); for(auto &a : W) cin >> a;
while(lower < upper) {
ll m = (lower+upper+1)/2;
auto K = solve(m);
if(K.second >= k) {
lower = m;
} else {
upper = m-1;
}
}
auto K = solve(lower);
cout << K.first + k*lower;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
38 ms |
4396 KB |
Output is correct |
2 |
Correct |
39 ms |
4432 KB |
Output is correct |
3 |
Correct |
39 ms |
4420 KB |
Output is correct |
4 |
Correct |
38 ms |
4440 KB |
Output is correct |
5 |
Correct |
39 ms |
4432 KB |
Output is correct |
6 |
Correct |
38 ms |
4308 KB |
Output is correct |
7 |
Correct |
42 ms |
4340 KB |
Output is correct |
8 |
Correct |
38 ms |
4436 KB |
Output is correct |
9 |
Correct |
38 ms |
4440 KB |
Output is correct |
10 |
Correct |
38 ms |
4432 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
30 ms |
3416 KB |
Output is correct |
2 |
Correct |
31 ms |
3420 KB |
Output is correct |
3 |
Correct |
35 ms |
3444 KB |
Output is correct |
4 |
Correct |
32 ms |
3416 KB |
Output is correct |
5 |
Correct |
38 ms |
4432 KB |
Output is correct |
6 |
Correct |
30 ms |
3420 KB |
Output is correct |
7 |
Correct |
31 ms |
3420 KB |
Output is correct |
8 |
Correct |
38 ms |
4440 KB |
Output is correct |
9 |
Correct |
38 ms |
4236 KB |
Output is correct |
10 |
Correct |
31 ms |
3932 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
55 ms |
5456 KB |
Output is correct |
2 |
Correct |
58 ms |
5120 KB |
Output is correct |
3 |
Correct |
54 ms |
5208 KB |
Output is correct |
4 |
Correct |
63 ms |
5400 KB |
Output is correct |
5 |
Correct |
54 ms |
5204 KB |
Output is correct |
6 |
Correct |
58 ms |
5200 KB |
Output is correct |
7 |
Correct |
55 ms |
5140 KB |
Output is correct |
8 |
Correct |
55 ms |
5204 KB |
Output is correct |
9 |
Correct |
58 ms |
5212 KB |
Output is correct |
10 |
Correct |
58 ms |
5200 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 |
376 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 |
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 |
376 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 |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
1 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 |
344 KB |
Output is correct |
17 |
Correct |
1 ms |
344 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 |
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 |
376 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 |
1 ms |
348 KB |
Output is correct |
12 |
Correct |
1 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 |
344 KB |
Output is correct |
17 |
Correct |
1 ms |
344 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 |
472 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 |
348 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 |
38 ms |
4396 KB |
Output is correct |
2 |
Correct |
39 ms |
4432 KB |
Output is correct |
3 |
Correct |
39 ms |
4420 KB |
Output is correct |
4 |
Correct |
38 ms |
4440 KB |
Output is correct |
5 |
Correct |
39 ms |
4432 KB |
Output is correct |
6 |
Correct |
38 ms |
4308 KB |
Output is correct |
7 |
Correct |
42 ms |
4340 KB |
Output is correct |
8 |
Correct |
38 ms |
4436 KB |
Output is correct |
9 |
Correct |
38 ms |
4440 KB |
Output is correct |
10 |
Correct |
38 ms |
4432 KB |
Output is correct |
11 |
Correct |
30 ms |
3416 KB |
Output is correct |
12 |
Correct |
31 ms |
3420 KB |
Output is correct |
13 |
Correct |
35 ms |
3444 KB |
Output is correct |
14 |
Correct |
32 ms |
3416 KB |
Output is correct |
15 |
Correct |
38 ms |
4432 KB |
Output is correct |
16 |
Correct |
30 ms |
3420 KB |
Output is correct |
17 |
Correct |
31 ms |
3420 KB |
Output is correct |
18 |
Correct |
38 ms |
4440 KB |
Output is correct |
19 |
Correct |
38 ms |
4236 KB |
Output is correct |
20 |
Correct |
31 ms |
3932 KB |
Output is correct |
21 |
Correct |
55 ms |
5456 KB |
Output is correct |
22 |
Correct |
58 ms |
5120 KB |
Output is correct |
23 |
Correct |
54 ms |
5208 KB |
Output is correct |
24 |
Correct |
63 ms |
5400 KB |
Output is correct |
25 |
Correct |
54 ms |
5204 KB |
Output is correct |
26 |
Correct |
58 ms |
5200 KB |
Output is correct |
27 |
Correct |
55 ms |
5140 KB |
Output is correct |
28 |
Correct |
55 ms |
5204 KB |
Output is correct |
29 |
Correct |
58 ms |
5212 KB |
Output is correct |
30 |
Correct |
58 ms |
5200 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 |
376 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 |
1 ms |
348 KB |
Output is correct |
42 |
Correct |
1 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 |
0 ms |
348 KB |
Output is correct |
46 |
Correct |
0 ms |
344 KB |
Output is correct |
47 |
Correct |
1 ms |
344 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 |
472 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 |
348 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 |
87 ms |
5104 KB |
Output is correct |
62 |
Correct |
80 ms |
5212 KB |
Output is correct |
63 |
Correct |
68 ms |
5204 KB |
Output is correct |
64 |
Correct |
85 ms |
5212 KB |
Output is correct |
65 |
Correct |
90 ms |
5216 KB |
Output is correct |
66 |
Correct |
93 ms |
5292 KB |
Output is correct |
67 |
Correct |
91 ms |
5208 KB |
Output is correct |
68 |
Correct |
56 ms |
5200 KB |
Output is correct |
69 |
Correct |
56 ms |
5116 KB |
Output is correct |
70 |
Correct |
57 ms |
5460 KB |
Output is correct |