#include <bits/stdc++.h>
using namespace std;
const int MAX_N = 1e5;
const long long MAX_P = 1e15;
const double EPS = 1e-5;
double a[MAX_N + 1], b[MAX_N + 1], sa[MAX_N + 1], sb[MAX_N + 1];
int main() {
int n;
cin >> n;
for ( int i = 1; i <= n; i++ )
cin >> a[i] >> b[i];
sort( a + 1, a + 1 + n );
reverse( a + 1, a + 1 + n );
sort( b + 1, b + 1 + n );
reverse( b + 1, b + 1 + n );
for ( int i = 1; i <= n; i++ ) {
sa[i] = sa[i - 1] + a[i];
sb[i] = sb[i - 1] + b[i];
}
double l = 0, r = MAX_P;
while ( r - l > EPS ) {
double p = (l + r) / 2;
bool isPos = false;
for ( int i = 0; i <= n; i++ ) {
int j = min( (double)n, max( 0.0, (sa[i] - i - p) ) );
if ( min( sa[i], sb[j] ) - (i + j) >= p )
isPos = true;
}
if ( isPos )
l = p;
else
r = p;
}
cout << fixed << setprecision( 4 ) << l;
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
2 ms |
2396 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 8 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
2 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
111 ms |
4760 KB |
Output is correct |
| 18 |
Correct |
114 ms |
4688 KB |
Output is correct |
| 19 |
Correct |
113 ms |
4692 KB |
Output is correct |
| 20 |
Correct |
108 ms |
4684 KB |
Output is correct |
| 21 |
Correct |
142 ms |
5052 KB |
Output is correct |
| 22 |
Correct |
115 ms |
4692 KB |
Output is correct |
| 23 |
Correct |
110 ms |
4732 KB |
Output is correct |
| 24 |
Correct |
113 ms |
4912 KB |
Output is correct |
| 25 |
Correct |
107 ms |
4888 KB |
Output is correct |
| 26 |
Correct |
121 ms |
5160 KB |
Output is correct |
