#include <algorithm>
#include <iostream>
#include <iomanip>
#include <vector>
using namespace std;
#define rep(i, a, b) for (auto i = (a); i < (b); ++i)
#define trav(x, v) for (auto &x : v)
#define all(x) begin(x), end(x)
#define rall(x) (x).rbegin(), (x).rend()
using ld = long double;
signed main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int n; cin >> n;
vector<ld> a(n + 1), b(n + 1);
a[0] = b[0] = 1e6;
rep(i, 0, n) cin >> a[i + 1] >> b[i + 1];
sort(rall(a)); sort(rall(b));
a[0] = b[0] = 0;
rep(i, 0, n) a[i + 1] += a[i], b[i + 1] += b[i];
auto f = [&](int x, int y) -> ld {
return min(a[x], b[y]) - x - y;
};
ld ans = 0;
rep(x, 0, n + 1) {
int l = 0, r = n;
while (r - l >= 5) {
int mid = l + (r - l) / 2;
if (f(x, mid) < f(x, mid + 1))
l = mid;
else r = mid + 1;
}
rep(i, l + 1, r + 1) if (f(x, l) < f(x, i)) l = i;
ans = max(ans, f(x, l));
}
cout << fixed << setprecision(4) << ans;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
5 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
5 ms |
384 KB |
Output is correct |
| 5 |
Correct |
4 ms |
384 KB |
Output is correct |
| 6 |
Correct |
5 ms |
384 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
5 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
5 ms |
384 KB |
Output is correct |
| 5 |
Correct |
4 ms |
384 KB |
Output is correct |
| 6 |
Correct |
5 ms |
384 KB |
Output is correct |
| 7 |
Correct |
5 ms |
384 KB |
Output is correct |
| 8 |
Correct |
5 ms |
384 KB |
Output is correct |
| 9 |
Correct |
5 ms |
384 KB |
Output is correct |
| 10 |
Correct |
5 ms |
384 KB |
Output is correct |
| 11 |
Correct |
5 ms |
384 KB |
Output is correct |
| 12 |
Correct |
6 ms |
384 KB |
Output is correct |
| 13 |
Correct |
6 ms |
384 KB |
Output is correct |
| 14 |
Correct |
6 ms |
384 KB |
Output is correct |
| 15 |
Correct |
6 ms |
384 KB |
Output is correct |
| 16 |
Correct |
6 ms |
384 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
384 KB |
Output is correct |
| 2 |
Correct |
5 ms |
384 KB |
Output is correct |
| 3 |
Correct |
5 ms |
384 KB |
Output is correct |
| 4 |
Correct |
5 ms |
384 KB |
Output is correct |
| 5 |
Correct |
4 ms |
384 KB |
Output is correct |
| 6 |
Correct |
5 ms |
384 KB |
Output is correct |
| 7 |
Correct |
5 ms |
384 KB |
Output is correct |
| 8 |
Correct |
5 ms |
384 KB |
Output is correct |
| 9 |
Correct |
5 ms |
384 KB |
Output is correct |
| 10 |
Correct |
5 ms |
384 KB |
Output is correct |
| 11 |
Correct |
5 ms |
384 KB |
Output is correct |
| 12 |
Correct |
6 ms |
384 KB |
Output is correct |
| 13 |
Correct |
6 ms |
384 KB |
Output is correct |
| 14 |
Correct |
6 ms |
384 KB |
Output is correct |
| 15 |
Correct |
6 ms |
384 KB |
Output is correct |
| 16 |
Correct |
6 ms |
384 KB |
Output is correct |
| 17 |
Correct |
143 ms |
4856 KB |
Output is correct |
| 18 |
Correct |
150 ms |
4924 KB |
Output is correct |
| 19 |
Correct |
148 ms |
4856 KB |
Output is correct |
| 20 |
Correct |
147 ms |
4820 KB |
Output is correct |
| 21 |
Correct |
158 ms |
5196 KB |
Output is correct |
| 22 |
Correct |
147 ms |
4856 KB |
Output is correct |
| 23 |
Correct |
146 ms |
4856 KB |
Output is correct |
| 24 |
Correct |
146 ms |
4856 KB |
Output is correct |
| 25 |
Correct |
148 ms |
4984 KB |
Output is correct |
| 26 |
Correct |
157 ms |
5240 KB |
Output is correct |
