#include <bits/stdc++.h>
#define int long long
using namespace std;
struct oras
{
int a, b;
};
oras v[10005];
typedef long double ld;
bool cmp2(oras a, oras b)
{
return a.a < b.a;
}
bool cmp1(oras a, oras b)
{
return a.b < b.b;
}
signed main()
{
int n, k;
cin>>n>>k;
ld minn = 0.0;
for(int i = 1; i <= n; i++)
{
cin>>v[i].a>>v[i].b, minn += (ld)v[i].a;
if(v[i].b == -1) v[i].b = 1e9;
}
for(int cnt = 0; cnt <= k; cnt++)
{
sort(v + 1, v + n + 1, cmp1);
ld rez = 0.0;
for(int i = 1; i <= cnt; i++)
rez += (ld)v[i].b / (ld)i;
if(cnt != k)
{
sort(v + cnt + 1, v + n + 1, cmp2);
for(int i = cnt + 1; i <= k; i++)
rez += (ld)v[i].a / (ld)(cnt + 1);
}
minn = min(minn, rez);
}
cout<<fixed<<setprecision(10);
cout<<minn;
return 0;
}
# |
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 |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
3 ms |
344 KB |
Output is correct |
7 |
Correct |
5 ms |
344 KB |
Output is correct |
8 |
Correct |
6 ms |
348 KB |
Output is correct |
9 |
Correct |
8 ms |
344 KB |
Output is correct |
10 |
Correct |
5 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 |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
3 ms |
344 KB |
Output is correct |
7 |
Correct |
5 ms |
344 KB |
Output is correct |
8 |
Correct |
6 ms |
348 KB |
Output is correct |
9 |
Correct |
8 ms |
344 KB |
Output is correct |
10 |
Correct |
5 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
3 ms |
348 KB |
Output is correct |
13 |
Correct |
4 ms |
348 KB |
Output is correct |
14 |
Correct |
4 ms |
348 KB |
Output is correct |
15 |
Correct |
6 ms |
348 KB |
Output is correct |
16 |
Correct |
7 ms |
348 KB |
Output is correct |
17 |
Correct |
7 ms |
348 KB |
Output is correct |
18 |
Correct |
8 ms |
348 KB |
Output is correct |
19 |
Correct |
10 ms |
344 KB |
Output is correct |
20 |
Correct |
8 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 |
1 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 |
600 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
10 |
Halted |
0 ms |
0 KB |
- |
# |
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 |
1 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 |
600 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
10 |
Halted |
0 ms |
0 KB |
- |
# |
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 |
1 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 |
600 KB |
Output is correct |
8 |
Correct |
0 ms |
348 KB |
Output is correct |
9 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
10 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
14 ms |
348 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
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 |
1 ms |
348 KB |
Output is correct |
6 |
Correct |
3 ms |
344 KB |
Output is correct |
7 |
Correct |
5 ms |
344 KB |
Output is correct |
8 |
Correct |
6 ms |
348 KB |
Output is correct |
9 |
Correct |
8 ms |
344 KB |
Output is correct |
10 |
Correct |
5 ms |
348 KB |
Output is correct |
11 |
Correct |
0 ms |
348 KB |
Output is correct |
12 |
Correct |
3 ms |
348 KB |
Output is correct |
13 |
Correct |
4 ms |
348 KB |
Output is correct |
14 |
Correct |
4 ms |
348 KB |
Output is correct |
15 |
Correct |
6 ms |
348 KB |
Output is correct |
16 |
Correct |
7 ms |
348 KB |
Output is correct |
17 |
Correct |
7 ms |
348 KB |
Output is correct |
18 |
Correct |
8 ms |
348 KB |
Output is correct |
19 |
Correct |
10 ms |
344 KB |
Output is correct |
20 |
Correct |
8 ms |
348 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 |
348 KB |
Output is correct |
24 |
Correct |
1 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 |
600 KB |
Output is correct |
28 |
Correct |
0 ms |
348 KB |
Output is correct |
29 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
30 |
Halted |
0 ms |
0 KB |
- |