#include <bits/stdc++.h>
using namespace std;
vector<double> a;
vector<double> b;
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
int n;
cin >> n;
a.resize(n);
b.resize(n);
for (int i = 0; i<n; i++)cin >> a[i] >> b[i];
sort(a.begin(),a.end(),greater<double>());
sort(b.begin(),b.end(),greater<double>());
int ind=0;
double ans=0,sma=0,smb=0;
for (int i = 0; i<n; i++){
sma+=a[i];
while(ind<n && sma>smb+b[ind])smb+=b[ind++];
ans=max(ans,min(sma,smb)-(double)(i+1+ind));
if (ind<n)smb+=b[ind++];
ans=max(ans,min(sma,smb)-(double)(i+1+ind));
}
cout << fixed << setprecision(4) << ans << '\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
344 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
0 ms |
348 KB |
Output is correct |
4 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
5 |
Halted |
0 ms |
0 KB |
- |