#include <bits/stdc++.h>
using namespace std;
typedef long double ld;
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
int N, K; cin >> N >> K;
vector<pair<ld, ld>> v(N);
for(int i = 0; i < N; i++){
cin >> v[i].second >> v[i].first;
if(v[i].first == -1) v[i].first = 1e9;
}
sort(v.begin(), v.end());
ld ans = 7e18;
for(ld collaborators = 0; collaborators < K; collaborators++){
int mx = K - collaborators;
vector<ld> dp(mx+1, 1e18);
dp[0] = 0;
for(int i = 0; i < N; i++){
for(int elem = mx; elem >= 0; elem--){
if(elem != mx){
dp[elem+1] = min(dp[elem+1], dp[elem] + v[i].second / (1.0+collaborators));
}
int ind = i+1 - elem;
if(ind <= 0) continue;
if(ind <= collaborators) dp[elem] += v[i].first / (ld)ind;
}
}
ans = min(ans, dp[mx]);
}
cout << fixed << setprecision(8) << ans << "\n";
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
600 KB |
Output is correct |
5 |
Correct |
6 ms |
348 KB |
Output is correct |
6 |
Correct |
36 ms |
476 KB |
Output is correct |
7 |
Correct |
145 ms |
484 KB |
Output is correct |
8 |
Correct |
329 ms |
344 KB |
Output is correct |
9 |
Correct |
601 ms |
596 KB |
Output is correct |
10 |
Correct |
287 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
600 KB |
Output is correct |
5 |
Correct |
6 ms |
348 KB |
Output is correct |
6 |
Correct |
36 ms |
476 KB |
Output is correct |
7 |
Correct |
145 ms |
484 KB |
Output is correct |
8 |
Correct |
329 ms |
344 KB |
Output is correct |
9 |
Correct |
601 ms |
596 KB |
Output is correct |
10 |
Correct |
287 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
460 KB |
Output is correct |
12 |
Correct |
52 ms |
484 KB |
Output is correct |
13 |
Correct |
51 ms |
344 KB |
Output is correct |
14 |
Correct |
52 ms |
348 KB |
Output is correct |
15 |
Correct |
287 ms |
348 KB |
Output is correct |
16 |
Correct |
288 ms |
480 KB |
Output is correct |
17 |
Correct |
289 ms |
464 KB |
Output is correct |
18 |
Correct |
599 ms |
596 KB |
Output is correct |
19 |
Correct |
611 ms |
596 KB |
Output is correct |
20 |
Correct |
607 ms |
464 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
460 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 |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
344 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 |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
600 KB |
Output is correct |
15 |
Correct |
0 ms |
360 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
460 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 |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
344 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 |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
600 KB |
Output is correct |
15 |
Correct |
0 ms |
360 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
1 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 |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
344 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
0 ms |
344 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
424 KB |
Output is correct |
28 |
Correct |
1 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 |
1 ms |
348 KB |
Output is correct |
39 |
Correct |
0 ms |
456 KB |
Output is correct |
40 |
Correct |
0 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
460 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 |
0 ms |
348 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
344 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 |
344 KB |
Output is correct |
14 |
Correct |
0 ms |
600 KB |
Output is correct |
15 |
Correct |
0 ms |
360 KB |
Output is correct |
16 |
Correct |
1 ms |
344 KB |
Output is correct |
17 |
Correct |
1 ms |
348 KB |
Output is correct |
18 |
Correct |
0 ms |
348 KB |
Output is correct |
19 |
Correct |
1 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 |
0 ms |
348 KB |
Output is correct |
23 |
Correct |
1 ms |
344 KB |
Output is correct |
24 |
Correct |
0 ms |
344 KB |
Output is correct |
25 |
Correct |
0 ms |
344 KB |
Output is correct |
26 |
Correct |
0 ms |
348 KB |
Output is correct |
27 |
Correct |
0 ms |
424 KB |
Output is correct |
28 |
Correct |
1 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 |
1 ms |
348 KB |
Output is correct |
39 |
Correct |
0 ms |
456 KB |
Output is correct |
40 |
Correct |
0 ms |
348 KB |
Output is correct |
41 |
Correct |
1 ms |
344 KB |
Output is correct |
42 |
Correct |
1 ms |
348 KB |
Output is correct |
43 |
Correct |
1 ms |
456 KB |
Output is correct |
44 |
Correct |
1 ms |
460 KB |
Output is correct |
45 |
Correct |
2 ms |
348 KB |
Output is correct |
46 |
Correct |
2 ms |
344 KB |
Output is correct |
47 |
Correct |
3 ms |
496 KB |
Output is correct |
48 |
Correct |
2 ms |
348 KB |
Output is correct |
49 |
Correct |
4 ms |
348 KB |
Output is correct |
50 |
Correct |
4 ms |
344 KB |
Output is correct |
51 |
Correct |
6 ms |
348 KB |
Output is correct |
52 |
Correct |
5 ms |
348 KB |
Output is correct |
53 |
Correct |
2 ms |
348 KB |
Output is correct |
54 |
Correct |
2 ms |
348 KB |
Output is correct |
55 |
Correct |
3 ms |
348 KB |
Output is correct |
56 |
Correct |
3 ms |
348 KB |
Output is correct |
57 |
Correct |
2 ms |
344 KB |
Output is correct |
58 |
Correct |
3 ms |
472 KB |
Output is correct |
59 |
Correct |
3 ms |
348 KB |
Output is correct |
60 |
Correct |
2 ms |
348 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
604 ms |
472 KB |
Output is correct |
2 |
Correct |
599 ms |
468 KB |
Output is correct |
3 |
Correct |
600 ms |
468 KB |
Output is correct |
4 |
Correct |
606 ms |
468 KB |
Output is correct |
5 |
Correct |
603 ms |
472 KB |
Output is correct |
6 |
Correct |
607 ms |
472 KB |
Output is correct |
7 |
Correct |
600 ms |
596 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
344 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
600 KB |
Output is correct |
5 |
Correct |
6 ms |
348 KB |
Output is correct |
6 |
Correct |
36 ms |
476 KB |
Output is correct |
7 |
Correct |
145 ms |
484 KB |
Output is correct |
8 |
Correct |
329 ms |
344 KB |
Output is correct |
9 |
Correct |
601 ms |
596 KB |
Output is correct |
10 |
Correct |
287 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
460 KB |
Output is correct |
12 |
Correct |
52 ms |
484 KB |
Output is correct |
13 |
Correct |
51 ms |
344 KB |
Output is correct |
14 |
Correct |
52 ms |
348 KB |
Output is correct |
15 |
Correct |
287 ms |
348 KB |
Output is correct |
16 |
Correct |
288 ms |
480 KB |
Output is correct |
17 |
Correct |
289 ms |
464 KB |
Output is correct |
18 |
Correct |
599 ms |
596 KB |
Output is correct |
19 |
Correct |
611 ms |
596 KB |
Output is correct |
20 |
Correct |
607 ms |
464 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 |
460 KB |
Output is correct |
24 |
Correct |
0 ms |
348 KB |
Output is correct |
25 |
Correct |
0 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 |
1 ms |
344 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 |
344 KB |
Output is correct |
34 |
Correct |
0 ms |
600 KB |
Output is correct |
35 |
Correct |
0 ms |
360 KB |
Output is correct |
36 |
Correct |
1 ms |
344 KB |
Output is correct |
37 |
Correct |
1 ms |
348 KB |
Output is correct |
38 |
Correct |
0 ms |
348 KB |
Output is correct |
39 |
Correct |
1 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 |
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 |
344 KB |
Output is correct |
46 |
Correct |
0 ms |
348 KB |
Output is correct |
47 |
Correct |
0 ms |
424 KB |
Output is correct |
48 |
Correct |
1 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 |
0 ms |
348 KB |
Output is correct |
52 |
Correct |
0 ms |
348 KB |
Output is correct |
53 |
Correct |
0 ms |
348 KB |
Output is correct |
54 |
Correct |
0 ms |
348 KB |
Output is correct |
55 |
Correct |
0 ms |
348 KB |
Output is correct |
56 |
Correct |
0 ms |
348 KB |
Output is correct |
57 |
Correct |
0 ms |
348 KB |
Output is correct |
58 |
Correct |
1 ms |
348 KB |
Output is correct |
59 |
Correct |
0 ms |
456 KB |
Output is correct |
60 |
Correct |
0 ms |
348 KB |
Output is correct |
61 |
Correct |
1 ms |
344 KB |
Output is correct |
62 |
Correct |
1 ms |
348 KB |
Output is correct |
63 |
Correct |
1 ms |
456 KB |
Output is correct |
64 |
Correct |
1 ms |
460 KB |
Output is correct |
65 |
Correct |
2 ms |
348 KB |
Output is correct |
66 |
Correct |
2 ms |
344 KB |
Output is correct |
67 |
Correct |
3 ms |
496 KB |
Output is correct |
68 |
Correct |
2 ms |
348 KB |
Output is correct |
69 |
Correct |
4 ms |
348 KB |
Output is correct |
70 |
Correct |
4 ms |
344 KB |
Output is correct |
71 |
Correct |
6 ms |
348 KB |
Output is correct |
72 |
Correct |
5 ms |
348 KB |
Output is correct |
73 |
Correct |
2 ms |
348 KB |
Output is correct |
74 |
Correct |
2 ms |
348 KB |
Output is correct |
75 |
Correct |
3 ms |
348 KB |
Output is correct |
76 |
Correct |
3 ms |
348 KB |
Output is correct |
77 |
Correct |
2 ms |
344 KB |
Output is correct |
78 |
Correct |
3 ms |
472 KB |
Output is correct |
79 |
Correct |
3 ms |
348 KB |
Output is correct |
80 |
Correct |
2 ms |
348 KB |
Output is correct |
81 |
Correct |
604 ms |
472 KB |
Output is correct |
82 |
Correct |
599 ms |
468 KB |
Output is correct |
83 |
Correct |
600 ms |
468 KB |
Output is correct |
84 |
Correct |
606 ms |
468 KB |
Output is correct |
85 |
Correct |
603 ms |
472 KB |
Output is correct |
86 |
Correct |
607 ms |
472 KB |
Output is correct |
87 |
Correct |
600 ms |
596 KB |
Output is correct |
88 |
Correct |
6 ms |
348 KB |
Output is correct |
89 |
Correct |
6 ms |
460 KB |
Output is correct |
90 |
Correct |
36 ms |
348 KB |
Output is correct |
91 |
Correct |
39 ms |
480 KB |
Output is correct |
92 |
Correct |
144 ms |
348 KB |
Output is correct |
93 |
Correct |
144 ms |
348 KB |
Output is correct |
94 |
Correct |
334 ms |
464 KB |
Output is correct |
95 |
Correct |
334 ms |
468 KB |
Output is correct |
96 |
Correct |
488 ms |
468 KB |
Output is correct |
97 |
Correct |
483 ms |
468 KB |
Output is correct |
98 |
Correct |
296 ms |
468 KB |
Output is correct |
99 |
Correct |
286 ms |
472 KB |
Output is correct |
100 |
Correct |
286 ms |
464 KB |
Output is correct |
101 |
Correct |
289 ms |
600 KB |
Output is correct |
102 |
Correct |
289 ms |
464 KB |
Output is correct |
103 |
Correct |
286 ms |
476 KB |
Output is correct |
104 |
Correct |
286 ms |
344 KB |
Output is correct |
105 |
Correct |
290 ms |
344 KB |
Output is correct |