#include <bits/stdc++.h>
using namespace std;
using ll = long long;
#define fi first
#define si second
typedef pair<int,int> pi;
typedef pair<double,double> pd;
typedef tuple<int,int,int> ti;
template<typename T> bool chmin(T &a, T b){return (b < a) ? a = b, 1 : 0;}
template<typename T> bool chmax(T &a, T b){return (b > a) ? a = b, 1 : 0;}
void debug_out() {cerr<<endl;}
template <typename Head, typename... Tail>
void debug_out(Head _H, Tail... _T) {cerr<<" "<<to_string(_H);debug_out(_T...);}
#define debug(...) cerr<<"["<<#__VA_ARGS__<<"]:",debug_out(__VA_ARGS__)
const int N = 510;
const double INF=1e9;
int n,k,cnt;
double dp[N][N];
pd arr[N];
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0);cout.tie(0);
cin.exceptions(ios::badbit|ios::failbit);
cin >> n >> k;
for (int i = 1; i <= n; ++i) {
cin >> arr[i].si >> arr[i].fi;
if (arr[i].fi==-1) arr[i].fi=INF;
}
double ans = INF;
sort(arr+1,arr+1+n);
for (int m = 0; m <= k; ++m) { //no. collab
for (int i = 0; i <= n; ++i) for (int j = 0; j <= n; ++j) {
dp[i][j]=INF;
}
dp[0][0]=0;
for (int i = 1; i <= n; ++i) {
for (int j = 0; j <= i; ++j) { //no. non collab
double va = arr[i].si/(m+1);
double vb = arr[i].fi/min(i-j,m);
chmin(dp[i][j],dp[i-1][j]+vb);
if (i-j>m) chmin(dp[i][j],dp[i-1][j]);
if (j) chmin(dp[i][j],dp[i-1][j-1]+va);
}
}
chmin(ans,dp[n][k-m]);
}
cout << fixed << setprecision(10);
cout << ans;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
30 ms |
2332 KB |
Output is correct |
6 |
Correct |
53 ms |
2260 KB |
Output is correct |
7 |
Correct |
103 ms |
2316 KB |
Output is correct |
8 |
Correct |
150 ms |
2320 KB |
Output is correct |
9 |
Correct |
233 ms |
2312 KB |
Output is correct |
10 |
Correct |
159 ms |
2248 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
30 ms |
2332 KB |
Output is correct |
6 |
Correct |
53 ms |
2260 KB |
Output is correct |
7 |
Correct |
103 ms |
2316 KB |
Output is correct |
8 |
Correct |
150 ms |
2320 KB |
Output is correct |
9 |
Correct |
233 ms |
2312 KB |
Output is correct |
10 |
Correct |
159 ms |
2248 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
74 ms |
2316 KB |
Output is correct |
13 |
Correct |
100 ms |
2252 KB |
Output is correct |
14 |
Correct |
72 ms |
2252 KB |
Output is correct |
15 |
Correct |
152 ms |
2260 KB |
Output is correct |
16 |
Correct |
158 ms |
2316 KB |
Output is correct |
17 |
Correct |
159 ms |
2316 KB |
Output is correct |
18 |
Correct |
244 ms |
2312 KB |
Output is correct |
19 |
Correct |
216 ms |
2332 KB |
Output is correct |
20 |
Correct |
218 ms |
2320 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
1 ms |
328 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
324 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 |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
1 ms |
328 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
324 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 |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
328 KB |
Output is correct |
20 |
Correct |
0 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
328 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 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 |
1 ms |
344 KB |
Output is correct |
28 |
Correct |
0 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
344 KB |
Output is correct |
30 |
Correct |
1 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 |
0 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
0 ms |
328 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 |
0 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 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 |
1 ms |
328 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
324 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 |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
332 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
328 KB |
Output is correct |
20 |
Correct |
0 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
328 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 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 |
1 ms |
344 KB |
Output is correct |
28 |
Correct |
0 ms |
340 KB |
Output is correct |
29 |
Correct |
1 ms |
344 KB |
Output is correct |
30 |
Correct |
1 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 |
0 ms |
340 KB |
Output is correct |
34 |
Correct |
1 ms |
340 KB |
Output is correct |
35 |
Correct |
0 ms |
328 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 |
0 ms |
340 KB |
Output is correct |
41 |
Correct |
1 ms |
724 KB |
Output is correct |
42 |
Correct |
1 ms |
724 KB |
Output is correct |
43 |
Correct |
1 ms |
724 KB |
Output is correct |
44 |
Correct |
2 ms |
708 KB |
Output is correct |
45 |
Correct |
2 ms |
724 KB |
Output is correct |
46 |
Correct |
2 ms |
724 KB |
Output is correct |
47 |
Correct |
2 ms |
724 KB |
Output is correct |
48 |
Correct |
4 ms |
712 KB |
Output is correct |
49 |
Correct |
3 ms |
724 KB |
Output is correct |
50 |
Correct |
3 ms |
708 KB |
Output is correct |
51 |
Correct |
3 ms |
724 KB |
Output is correct |
52 |
Correct |
3 ms |
708 KB |
Output is correct |
53 |
Correct |
2 ms |
724 KB |
Output is correct |
54 |
Correct |
2 ms |
724 KB |
Output is correct |
55 |
Correct |
3 ms |
852 KB |
Output is correct |
56 |
Correct |
2 ms |
724 KB |
Output is correct |
57 |
Correct |
2 ms |
724 KB |
Output is correct |
58 |
Correct |
2 ms |
724 KB |
Output is correct |
59 |
Correct |
2 ms |
716 KB |
Output is correct |
60 |
Correct |
2 ms |
724 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
222 ms |
2316 KB |
Output is correct |
2 |
Correct |
230 ms |
2324 KB |
Output is correct |
3 |
Correct |
225 ms |
2320 KB |
Output is correct |
4 |
Correct |
227 ms |
2372 KB |
Output is correct |
5 |
Correct |
223 ms |
2324 KB |
Output is correct |
6 |
Correct |
233 ms |
2324 KB |
Output is correct |
7 |
Correct |
223 ms |
2324 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
212 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
30 ms |
2332 KB |
Output is correct |
6 |
Correct |
53 ms |
2260 KB |
Output is correct |
7 |
Correct |
103 ms |
2316 KB |
Output is correct |
8 |
Correct |
150 ms |
2320 KB |
Output is correct |
9 |
Correct |
233 ms |
2312 KB |
Output is correct |
10 |
Correct |
159 ms |
2248 KB |
Output is correct |
11 |
Correct |
1 ms |
212 KB |
Output is correct |
12 |
Correct |
74 ms |
2316 KB |
Output is correct |
13 |
Correct |
100 ms |
2252 KB |
Output is correct |
14 |
Correct |
72 ms |
2252 KB |
Output is correct |
15 |
Correct |
152 ms |
2260 KB |
Output is correct |
16 |
Correct |
158 ms |
2316 KB |
Output is correct |
17 |
Correct |
159 ms |
2316 KB |
Output is correct |
18 |
Correct |
244 ms |
2312 KB |
Output is correct |
19 |
Correct |
216 ms |
2332 KB |
Output is correct |
20 |
Correct |
218 ms |
2320 KB |
Output is correct |
21 |
Correct |
0 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 |
1 ms |
328 KB |
Output is correct |
25 |
Correct |
1 ms |
340 KB |
Output is correct |
26 |
Correct |
1 ms |
324 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 |
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 |
332 KB |
Output is correct |
36 |
Correct |
1 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 |
328 KB |
Output is correct |
40 |
Correct |
0 ms |
340 KB |
Output is correct |
41 |
Correct |
1 ms |
340 KB |
Output is correct |
42 |
Correct |
1 ms |
328 KB |
Output is correct |
43 |
Correct |
1 ms |
340 KB |
Output is correct |
44 |
Correct |
1 ms |
340 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 |
344 KB |
Output is correct |
48 |
Correct |
0 ms |
340 KB |
Output is correct |
49 |
Correct |
1 ms |
344 KB |
Output is correct |
50 |
Correct |
1 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 |
0 ms |
340 KB |
Output is correct |
54 |
Correct |
1 ms |
340 KB |
Output is correct |
55 |
Correct |
0 ms |
328 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 |
0 ms |
340 KB |
Output is correct |
61 |
Correct |
1 ms |
724 KB |
Output is correct |
62 |
Correct |
1 ms |
724 KB |
Output is correct |
63 |
Correct |
1 ms |
724 KB |
Output is correct |
64 |
Correct |
2 ms |
708 KB |
Output is correct |
65 |
Correct |
2 ms |
724 KB |
Output is correct |
66 |
Correct |
2 ms |
724 KB |
Output is correct |
67 |
Correct |
2 ms |
724 KB |
Output is correct |
68 |
Correct |
4 ms |
712 KB |
Output is correct |
69 |
Correct |
3 ms |
724 KB |
Output is correct |
70 |
Correct |
3 ms |
708 KB |
Output is correct |
71 |
Correct |
3 ms |
724 KB |
Output is correct |
72 |
Correct |
3 ms |
708 KB |
Output is correct |
73 |
Correct |
2 ms |
724 KB |
Output is correct |
74 |
Correct |
2 ms |
724 KB |
Output is correct |
75 |
Correct |
3 ms |
852 KB |
Output is correct |
76 |
Correct |
2 ms |
724 KB |
Output is correct |
77 |
Correct |
2 ms |
724 KB |
Output is correct |
78 |
Correct |
2 ms |
724 KB |
Output is correct |
79 |
Correct |
2 ms |
716 KB |
Output is correct |
80 |
Correct |
2 ms |
724 KB |
Output is correct |
81 |
Correct |
222 ms |
2316 KB |
Output is correct |
82 |
Correct |
230 ms |
2324 KB |
Output is correct |
83 |
Correct |
225 ms |
2320 KB |
Output is correct |
84 |
Correct |
227 ms |
2372 KB |
Output is correct |
85 |
Correct |
223 ms |
2324 KB |
Output is correct |
86 |
Correct |
233 ms |
2324 KB |
Output is correct |
87 |
Correct |
223 ms |
2324 KB |
Output is correct |
88 |
Correct |
24 ms |
2260 KB |
Output is correct |
89 |
Correct |
37 ms |
2312 KB |
Output is correct |
90 |
Correct |
69 ms |
2260 KB |
Output is correct |
91 |
Correct |
76 ms |
2252 KB |
Output is correct |
92 |
Correct |
117 ms |
2260 KB |
Output is correct |
93 |
Correct |
118 ms |
2320 KB |
Output is correct |
94 |
Correct |
173 ms |
2316 KB |
Output is correct |
95 |
Correct |
176 ms |
2320 KB |
Output is correct |
96 |
Correct |
201 ms |
2316 KB |
Output is correct |
97 |
Correct |
205 ms |
2320 KB |
Output is correct |
98 |
Correct |
182 ms |
2332 KB |
Output is correct |
99 |
Correct |
180 ms |
2260 KB |
Output is correct |
100 |
Correct |
183 ms |
2380 KB |
Output is correct |
101 |
Correct |
159 ms |
2312 KB |
Output is correct |
102 |
Correct |
160 ms |
2260 KB |
Output is correct |
103 |
Correct |
167 ms |
2324 KB |
Output is correct |
104 |
Correct |
159 ms |
2316 KB |
Output is correct |
105 |
Correct |
156 ms |
2264 KB |
Output is correct |