#include <iostream>
#include <string>
#include <cmath>
#include <vector>
#include <algorithm>
#include <utility>
#include <bitset>
#include <climits>
#include <set>
#include <map>
#include <iomanip>
#include <queue>
#include <cstring>
#include <fstream>
using namespace std;
#define ll long long
#define pb push_back
#define mp make_pair
#define pll pair<ll, ll>
#define pii pair<int, int>
#define f first
#define s second
#define inf 1000000000000000
bool cmp2(pll a, pll b){
return a.s<b.s;
}
bool cmp(pll a, pll b){
return a.f<b.f;
}
int main(){
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
ll n, k;
cin >> n >> k;
pll arr[n];
ll cnt=n;
for(int i=0;i<n;i++) cin >> arr[i].f >> arr[i].s;
for(int i=0;i<n;i++){
if(arr[i].s==-1){
arr[i].s=500000;
cnt--;
}
}
for(int i=0;i<n;i++) arr[i].f*=1000000000000, arr[i].s*=1000000000000;
ll ans=-1, cur, cool;
for(int i=0;i<min(cnt+1, k);i++){
cur=0;
cool=0;
sort(arr, arr+n, cmp2);
for(int j=0;j<i;j++) cur+=arr[j].s/(j+1);
sort(arr+i, arr+n, cmp);
for(int j=i;j<k;j++) cool+=arr[j].f;
cur+=cool/(i+1);
if(ans==-1) ans=cur;
else ans=min(ans, cur);
}
cout << ans/1000000000000 << ".";
for(int i=0;i<11-log10(ans%1000000000000);i++) cout << "0";
cout << ans%1000000000000 << endl;
/*ll kkk=ans, kk=ans*10000;
cout << kkk << ".";
if(kk<10) cout << "000";
else if(kk<100) cout << "00";
else if(kk<1000) cout << "0";
cout << kk%10000 << endl;*/
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2590 ms |
124152 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2590 ms |
124152 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2584 ms |
122468 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2584 ms |
122468 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2584 ms |
122468 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Incorrect |
18 ms |
324 KB |
Output isn't correct |
2 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
2590 ms |
124152 KB |
Time limit exceeded |
2 |
Halted |
0 ms |
0 KB |
- |