#ifdef Home
#define _GLIBCXX_DEBUG
#endif // Home
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
ld dp[555][555], ans = 1e9;
main() {
#ifdef Home
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif // Home
ios_base::sync_with_stdio(0);
cin.tie(0);
int n, k;
cin >> n >> k;
vector < pair < ld, ld > > V(n);
for(auto &[b, a] : V) {
cin >> a >> b;
if(b == -1) {
b = 1e9;
}
}
sort(V.begin(), V.end());
for(int t = 0; t <= k; ++ t) {
for(int i = 0; i <= n; ++ i) {
for(int j = 0; j <= n; ++ j) {
dp[i][j] = 1e9;
}
}
dp[0][0] = .0;
for(int i = 0; i < n; ++ i) {
for(int j = 0; j <= i; ++ j) {
dp[i + 1][j] = min(dp[i + 1][j], dp[i][j] + (i - j < t ? V[i].first / (i - j + 1) : .0));
dp[i + 1][j + 1] = min(dp[i + 1][j + 1], dp[i][j] + V[i].second / (t + 1));
}
}
ans = min(ans, dp[n][k - t]);
}
cout << fixed << setprecision(9) << ans << '\n';
}
Compilation message
Main.cpp:14:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
14 | main() {
| ^~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
324 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
117 ms |
4692 KB |
Output is correct |
6 |
Correct |
293 ms |
4704 KB |
Output is correct |
7 |
Correct |
590 ms |
4692 KB |
Output is correct |
8 |
Correct |
883 ms |
4692 KB |
Output is correct |
9 |
Correct |
1180 ms |
4692 KB |
Output is correct |
10 |
Correct |
818 ms |
4692 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
324 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
117 ms |
4692 KB |
Output is correct |
6 |
Correct |
293 ms |
4704 KB |
Output is correct |
7 |
Correct |
590 ms |
4692 KB |
Output is correct |
8 |
Correct |
883 ms |
4692 KB |
Output is correct |
9 |
Correct |
1180 ms |
4692 KB |
Output is correct |
10 |
Correct |
818 ms |
4692 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
347 ms |
4692 KB |
Output is correct |
13 |
Correct |
351 ms |
4704 KB |
Output is correct |
14 |
Correct |
353 ms |
4692 KB |
Output is correct |
15 |
Correct |
818 ms |
4812 KB |
Output is correct |
16 |
Correct |
819 ms |
4692 KB |
Output is correct |
17 |
Correct |
816 ms |
4696 KB |
Output is correct |
18 |
Correct |
1169 ms |
4692 KB |
Output is correct |
19 |
Correct |
1173 ms |
4692 KB |
Output is correct |
20 |
Correct |
1177 ms |
4812 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
0 ms |
328 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
0 ms |
340 KB |
Output is correct |
13 |
Correct |
0 ms |
340 KB |
Output is correct |
14 |
Correct |
0 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
0 ms |
328 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
0 ms |
340 KB |
Output is correct |
13 |
Correct |
0 ms |
340 KB |
Output is correct |
14 |
Correct |
0 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
0 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
324 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
324 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
332 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
340 KB |
Output is correct |
28 |
Correct |
1 ms |
328 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
340 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
1 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
0 ms |
340 KB |
Output is correct |
37 |
Correct |
1 ms |
340 KB |
Output is correct |
38 |
Correct |
1 ms |
340 KB |
Output is correct |
39 |
Correct |
1 ms |
340 KB |
Output is correct |
40 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
0 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
0 ms |
340 KB |
Output is correct |
8 |
Correct |
0 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
0 ms |
328 KB |
Output is correct |
11 |
Correct |
0 ms |
340 KB |
Output is correct |
12 |
Correct |
0 ms |
340 KB |
Output is correct |
13 |
Correct |
0 ms |
340 KB |
Output is correct |
14 |
Correct |
0 ms |
340 KB |
Output is correct |
15 |
Correct |
0 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
0 ms |
332 KB |
Output is correct |
18 |
Correct |
0 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
324 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
324 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
332 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
1 ms |
340 KB |
Output is correct |
28 |
Correct |
1 ms |
328 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
340 KB |
Output is correct |
31 |
Correct |
1 ms |
340 KB |
Output is correct |
32 |
Correct |
1 ms |
340 KB |
Output is correct |
33 |
Correct |
1 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
1 ms |
340 KB |
Output is correct |
36 |
Correct |
0 ms |
340 KB |
Output is correct |
37 |
Correct |
1 ms |
340 KB |
Output is correct |
38 |
Correct |
1 ms |
340 KB |
Output is correct |
39 |
Correct |
1 ms |
340 KB |
Output is correct |
40 |
Correct |
1 ms |
340 KB |
Output is correct |
41 |
Correct |
2 ms |
852 KB |
Output is correct |
42 |
Correct |
2 ms |
852 KB |
Output is correct |
43 |
Correct |
4 ms |
852 KB |
Output is correct |
44 |
Correct |
4 ms |
852 KB |
Output is correct |
45 |
Correct |
6 ms |
912 KB |
Output is correct |
46 |
Correct |
6 ms |
852 KB |
Output is correct |
47 |
Correct |
7 ms |
840 KB |
Output is correct |
48 |
Correct |
7 ms |
852 KB |
Output is correct |
49 |
Correct |
8 ms |
916 KB |
Output is correct |
50 |
Correct |
9 ms |
852 KB |
Output is correct |
51 |
Correct |
10 ms |
916 KB |
Output is correct |
52 |
Correct |
10 ms |
840 KB |
Output is correct |
53 |
Correct |
7 ms |
908 KB |
Output is correct |
54 |
Correct |
7 ms |
912 KB |
Output is correct |
55 |
Correct |
7 ms |
852 KB |
Output is correct |
56 |
Correct |
7 ms |
852 KB |
Output is correct |
57 |
Correct |
7 ms |
852 KB |
Output is correct |
58 |
Correct |
7 ms |
852 KB |
Output is correct |
59 |
Correct |
7 ms |
872 KB |
Output is correct |
60 |
Correct |
7 ms |
852 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1172 ms |
4692 KB |
Output is correct |
2 |
Correct |
1190 ms |
4692 KB |
Output is correct |
3 |
Correct |
1178 ms |
4812 KB |
Output is correct |
4 |
Correct |
1179 ms |
4692 KB |
Output is correct |
5 |
Correct |
1179 ms |
4692 KB |
Output is correct |
6 |
Correct |
1181 ms |
4692 KB |
Output is correct |
7 |
Correct |
1179 ms |
4692 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
324 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
117 ms |
4692 KB |
Output is correct |
6 |
Correct |
293 ms |
4704 KB |
Output is correct |
7 |
Correct |
590 ms |
4692 KB |
Output is correct |
8 |
Correct |
883 ms |
4692 KB |
Output is correct |
9 |
Correct |
1180 ms |
4692 KB |
Output is correct |
10 |
Correct |
818 ms |
4692 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
347 ms |
4692 KB |
Output is correct |
13 |
Correct |
351 ms |
4704 KB |
Output is correct |
14 |
Correct |
353 ms |
4692 KB |
Output is correct |
15 |
Correct |
818 ms |
4812 KB |
Output is correct |
16 |
Correct |
819 ms |
4692 KB |
Output is correct |
17 |
Correct |
816 ms |
4696 KB |
Output is correct |
18 |
Correct |
1169 ms |
4692 KB |
Output is correct |
19 |
Correct |
1173 ms |
4692 KB |
Output is correct |
20 |
Correct |
1177 ms |
4812 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
0 ms |
340 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
340 KB |
Output is correct |
27 |
Correct |
0 ms |
340 KB |
Output is correct |
28 |
Correct |
0 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
340 KB |
Output is correct |
30 |
Correct |
0 ms |
328 KB |
Output is correct |
31 |
Correct |
0 ms |
340 KB |
Output is correct |
32 |
Correct |
0 ms |
340 KB |
Output is correct |
33 |
Correct |
0 ms |
340 KB |
Output is correct |
34 |
Correct |
0 ms |
340 KB |
Output is correct |
35 |
Correct |
0 ms |
340 KB |
Output is correct |
36 |
Correct |
1 ms |
340 KB |
Output is correct |
37 |
Correct |
0 ms |
332 KB |
Output is correct |
38 |
Correct |
0 ms |
340 KB |
Output is correct |
39 |
Correct |
1 ms |
324 KB |
Output is correct |
40 |
Correct |
1 ms |
340 KB |
Output is correct |
41 |
Correct |
1 ms |
340 KB |
Output is correct |
42 |
Correct |
1 ms |
324 KB |
Output is correct |
43 |
Correct |
1 ms |
340 KB |
Output is correct |
44 |
Correct |
1 ms |
332 KB |
Output is correct |
45 |
Correct |
1 ms |
340 KB |
Output is correct |
46 |
Correct |
1 ms |
340 KB |
Output is correct |
47 |
Correct |
1 ms |
340 KB |
Output is correct |
48 |
Correct |
1 ms |
328 KB |
Output is correct |
49 |
Correct |
1 ms |
340 KB |
Output is correct |
50 |
Correct |
0 ms |
340 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 |
1 ms |
340 KB |
Output is correct |
56 |
Correct |
0 ms |
340 KB |
Output is correct |
57 |
Correct |
1 ms |
340 KB |
Output is correct |
58 |
Correct |
1 ms |
340 KB |
Output is correct |
59 |
Correct |
1 ms |
340 KB |
Output is correct |
60 |
Correct |
1 ms |
340 KB |
Output is correct |
61 |
Correct |
2 ms |
852 KB |
Output is correct |
62 |
Correct |
2 ms |
852 KB |
Output is correct |
63 |
Correct |
4 ms |
852 KB |
Output is correct |
64 |
Correct |
4 ms |
852 KB |
Output is correct |
65 |
Correct |
6 ms |
912 KB |
Output is correct |
66 |
Correct |
6 ms |
852 KB |
Output is correct |
67 |
Correct |
7 ms |
840 KB |
Output is correct |
68 |
Correct |
7 ms |
852 KB |
Output is correct |
69 |
Correct |
8 ms |
916 KB |
Output is correct |
70 |
Correct |
9 ms |
852 KB |
Output is correct |
71 |
Correct |
10 ms |
916 KB |
Output is correct |
72 |
Correct |
10 ms |
840 KB |
Output is correct |
73 |
Correct |
7 ms |
908 KB |
Output is correct |
74 |
Correct |
7 ms |
912 KB |
Output is correct |
75 |
Correct |
7 ms |
852 KB |
Output is correct |
76 |
Correct |
7 ms |
852 KB |
Output is correct |
77 |
Correct |
7 ms |
852 KB |
Output is correct |
78 |
Correct |
7 ms |
852 KB |
Output is correct |
79 |
Correct |
7 ms |
872 KB |
Output is correct |
80 |
Correct |
7 ms |
852 KB |
Output is correct |
81 |
Correct |
1172 ms |
4692 KB |
Output is correct |
82 |
Correct |
1190 ms |
4692 KB |
Output is correct |
83 |
Correct |
1178 ms |
4812 KB |
Output is correct |
84 |
Correct |
1179 ms |
4692 KB |
Output is correct |
85 |
Correct |
1179 ms |
4692 KB |
Output is correct |
86 |
Correct |
1181 ms |
4692 KB |
Output is correct |
87 |
Correct |
1179 ms |
4692 KB |
Output is correct |
88 |
Correct |
118 ms |
4692 KB |
Output is correct |
89 |
Correct |
121 ms |
4692 KB |
Output is correct |
90 |
Correct |
290 ms |
4696 KB |
Output is correct |
91 |
Correct |
288 ms |
4692 KB |
Output is correct |
92 |
Correct |
589 ms |
4692 KB |
Output is correct |
93 |
Correct |
583 ms |
4692 KB |
Output is correct |
94 |
Correct |
875 ms |
4688 KB |
Output is correct |
95 |
Correct |
897 ms |
4692 KB |
Output is correct |
96 |
Correct |
1062 ms |
4700 KB |
Output is correct |
97 |
Correct |
1059 ms |
4692 KB |
Output is correct |
98 |
Correct |
815 ms |
4692 KB |
Output is correct |
99 |
Correct |
821 ms |
4692 KB |
Output is correct |
100 |
Correct |
820 ms |
4692 KB |
Output is correct |
101 |
Correct |
823 ms |
4800 KB |
Output is correct |
102 |
Correct |
819 ms |
4692 KB |
Output is correct |
103 |
Correct |
823 ms |
4692 KB |
Output is correct |
104 |
Correct |
823 ms |
4692 KB |
Output is correct |
105 |
Correct |
818 ms |
4700 KB |
Output is correct |