#include <bits/stdc++.h>
using namespace std;
const int buff = 100000;
const long double dick = 1.0;
long long A[100008], B[100008];
signed main() {
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
int n; long double x; cin >> n;
cout << fixed << setprecision(4);
for (int i = 1; i <= n; ++i) {
cin >> x; A[i] = round(x * buff);
cin >> x; B[i] = round(x * buff);
}
sort(A + 1, A + n + 1, greater<long long>()); sort(B + 1, B + n + 1, greater<long long>());
for (int i = 1; i <= n; ++i) A[i] += A[i - 1];
for (int i = 1; i <= n; ++i) B[i] += B[i - 1];
int j; long double ans = 0;
for (int i = 1; i <= n && A[i] <= B[n]; ++i) { // A[i] <= B[j]
j = lower_bound(B + 1, B + n + 1, A[i]) - B;
// cout << (A[i] * dick) / buff - i - j << '\n';
ans = max(ans, (A[i] * dick) / buff - i - j);
}
for (int i = 1; i <= n && B[i] <= A[n]; ++i) { // B[i] <= A[j]
j = lower_bound(A + 1, A + n + 1, B[i]) - A;
ans = max(ans, (B[i] * dick) / buff - i - j);
// cout << (B[i] * dick) / buff - i - j << '\n';
}
cout << ans;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
600 KB |
Output is correct |
| 2 |
Correct |
1 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
600 KB |
Output is correct |
| 2 |
Correct |
1 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
344 KB |
Output is correct |
| 11 |
Correct |
0 ms |
344 KB |
Output is correct |
| 12 |
Correct |
1 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
488 KB |
Output is correct |
| 14 |
Correct |
1 ms |
348 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
1 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
600 KB |
Output is correct |
| 2 |
Correct |
1 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
344 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 ms |
348 KB |
Output is correct |
| 8 |
Correct |
0 ms |
348 KB |
Output is correct |
| 9 |
Correct |
0 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
344 KB |
Output is correct |
| 11 |
Correct |
0 ms |
344 KB |
Output is correct |
| 12 |
Correct |
1 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
488 KB |
Output is correct |
| 14 |
Correct |
1 ms |
348 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
1 ms |
348 KB |
Output is correct |
| 17 |
Correct |
59 ms |
1872 KB |
Output is correct |
| 18 |
Correct |
59 ms |
1872 KB |
Output is correct |
| 19 |
Correct |
57 ms |
1876 KB |
Output is correct |
| 20 |
Correct |
55 ms |
1876 KB |
Output is correct |
| 21 |
Correct |
60 ms |
1872 KB |
Output is correct |
| 22 |
Correct |
57 ms |
2020 KB |
Output is correct |
| 23 |
Correct |
64 ms |
1872 KB |
Output is correct |
| 24 |
Correct |
57 ms |
1872 KB |
Output is correct |
| 25 |
Correct |
54 ms |
1804 KB |
Output is correct |
| 26 |
Correct |
69 ms |
1872 KB |
Output is correct |
