#include <iostream>
#include <queue>
#include <stack>
#include <vector>
#include <cstring>
#include <cmath>
#include <map>
#include <unordered_map>
#include <set>
#include <algorithm>
#include <iomanip>
#define F first
#define S second
#define PB push_back
#define PF push_front
#define MP make_pair
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
const int maxn = 1e5 + 10;
const int maxm = 1e5 + 10;
const int mod = 1e9 + 7;
ld p[maxn], q[maxn];
int main() {
ios_base::sync_with_stdio(false);
int n;
cin >> n;
for (int i = 1; i <= n; i++)
cin >> p[i] >> q[i];
sort (p + 1, p + n + 1, greater <ld> ());
sort (q + 1, q + n + 1, greater <ld> ());
ld ans = 0, fi = 0, se = 0;
int idxse = 0;
for (int idxfi = 1; idxfi <= n; idxfi ++) {
fi += p[idxfi] - 1;
se --;
ans = max (ans, min (fi, se));
// cout << idxfi << " " << idxse << " -> " << fi << " " << se << endl;
while (se < fi and idxse < n) {
idxse ++;
se += q[idxse] - 1;
fi --;
// cout << idxfi << " " << idxse << " -> " << fi << " " << se << endl;
ans = max (ans, min (fi, se));
}
}
cout << fixed << setprecision (4) << ans << endl;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
508 KB |
Output is correct |
| 3 |
Correct |
2 ms |
508 KB |
Output is correct |
| 4 |
Correct |
2 ms |
508 KB |
Output is correct |
| 5 |
Correct |
2 ms |
512 KB |
Output is correct |
| 6 |
Correct |
2 ms |
512 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
508 KB |
Output is correct |
| 3 |
Correct |
2 ms |
508 KB |
Output is correct |
| 4 |
Correct |
2 ms |
508 KB |
Output is correct |
| 5 |
Correct |
2 ms |
512 KB |
Output is correct |
| 6 |
Correct |
2 ms |
512 KB |
Output is correct |
| 7 |
Correct |
2 ms |
524 KB |
Output is correct |
| 8 |
Correct |
2 ms |
652 KB |
Output is correct |
| 9 |
Correct |
2 ms |
652 KB |
Output is correct |
| 10 |
Correct |
2 ms |
652 KB |
Output is correct |
| 11 |
Correct |
2 ms |
652 KB |
Output is correct |
| 12 |
Correct |
3 ms |
652 KB |
Output is correct |
| 13 |
Correct |
3 ms |
652 KB |
Output is correct |
| 14 |
Correct |
3 ms |
652 KB |
Output is correct |
| 15 |
Correct |
3 ms |
652 KB |
Output is correct |
| 16 |
Correct |
3 ms |
652 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2 ms |
376 KB |
Output is correct |
| 2 |
Correct |
2 ms |
508 KB |
Output is correct |
| 3 |
Correct |
2 ms |
508 KB |
Output is correct |
| 4 |
Correct |
2 ms |
508 KB |
Output is correct |
| 5 |
Correct |
2 ms |
512 KB |
Output is correct |
| 6 |
Correct |
2 ms |
512 KB |
Output is correct |
| 7 |
Correct |
2 ms |
524 KB |
Output is correct |
| 8 |
Correct |
2 ms |
652 KB |
Output is correct |
| 9 |
Correct |
2 ms |
652 KB |
Output is correct |
| 10 |
Correct |
2 ms |
652 KB |
Output is correct |
| 11 |
Correct |
2 ms |
652 KB |
Output is correct |
| 12 |
Correct |
3 ms |
652 KB |
Output is correct |
| 13 |
Correct |
3 ms |
652 KB |
Output is correct |
| 14 |
Correct |
3 ms |
652 KB |
Output is correct |
| 15 |
Correct |
3 ms |
652 KB |
Output is correct |
| 16 |
Correct |
3 ms |
652 KB |
Output is correct |
| 17 |
Correct |
112 ms |
3612 KB |
Output is correct |
| 18 |
Correct |
114 ms |
3784 KB |
Output is correct |
| 19 |
Correct |
115 ms |
3792 KB |
Output is correct |
| 20 |
Correct |
113 ms |
3792 KB |
Output is correct |
| 21 |
Correct |
129 ms |
3792 KB |
Output is correct |
| 22 |
Correct |
115 ms |
3792 KB |
Output is correct |
| 23 |
Correct |
114 ms |
3792 KB |
Output is correct |
| 24 |
Correct |
119 ms |
3792 KB |
Output is correct |
| 25 |
Correct |
114 ms |
3792 KB |
Output is correct |
| 26 |
Correct |
125 ms |
3820 KB |
Output is correct |
