#include <bits/stdc++.h>
using namespace std;
const int N = 1e5 + 11;
double a[N], b[N];
int main(int argc, char** argv) {
ios::sync_with_stdio(false);
cin.tie(0); cout.tie(0);
int n; cin >> n;
for (int i = 1; i <= n; i++)
cin >> a[i] >> b[i];
sort(a + 1, a + 1 + n, greater<double>());
sort(b + 1, b + 1 + n, greater<double>());
double ans = 0.0;
int pos_a = 1, pos_b = 1, cnt = 0;
double sum_a = 0, sum_b = 0;
while (1) {
++cnt;
if (sum_a < sum_b) {
if (pos_a > n) break;
sum_a += a[pos_a++];
} else if (sum_b < sum_a) {
if (pos_b > n) break;
sum_b += b[pos_b++];
} else {
if (sum_a > n || sum_b > n) break;
sum_a += a[pos_a++];
}
cerr << sum_a << ' ' << sum_b << '\n';
double val = min(sum_a - cnt, sum_b - cnt);
ans = max(ans, val);
}
cout << setprecision(4) << fixed << ans;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
1 ms |
344 KB |
Output is correct |
| 4 |
Correct |
1 ms |
344 KB |
Output is correct |
| 5 |
Correct |
1 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 |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
1 ms |
344 KB |
Output is correct |
| 4 |
Correct |
1 ms |
344 KB |
Output is correct |
| 5 |
Correct |
1 ms |
344 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
2 ms |
344 KB |
Output is correct |
| 8 |
Correct |
1 ms |
344 KB |
Output is correct |
| 9 |
Correct |
2 ms |
348 KB |
Output is correct |
| 10 |
Correct |
1 ms |
344 KB |
Output is correct |
| 11 |
Correct |
1 ms |
344 KB |
Output is correct |
| 12 |
Correct |
11 ms |
348 KB |
Output is correct |
| 13 |
Correct |
11 ms |
344 KB |
Output is correct |
| 14 |
Correct |
11 ms |
344 KB |
Output is correct |
| 15 |
Correct |
9 ms |
344 KB |
Output is correct |
| 16 |
Correct |
11 ms |
344 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
1 ms |
344 KB |
Output is correct |
| 4 |
Correct |
1 ms |
344 KB |
Output is correct |
| 5 |
Correct |
1 ms |
344 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
2 ms |
344 KB |
Output is correct |
| 8 |
Correct |
1 ms |
344 KB |
Output is correct |
| 9 |
Correct |
2 ms |
348 KB |
Output is correct |
| 10 |
Correct |
1 ms |
344 KB |
Output is correct |
| 11 |
Correct |
1 ms |
344 KB |
Output is correct |
| 12 |
Correct |
11 ms |
348 KB |
Output is correct |
| 13 |
Correct |
11 ms |
344 KB |
Output is correct |
| 14 |
Correct |
11 ms |
344 KB |
Output is correct |
| 15 |
Correct |
9 ms |
344 KB |
Output is correct |
| 16 |
Correct |
11 ms |
344 KB |
Output is correct |
| 17 |
Correct |
1128 ms |
6104 KB |
Output is correct |
| 18 |
Correct |
1115 ms |
6448 KB |
Output is correct |
| 19 |
Correct |
1120 ms |
6216 KB |
Output is correct |
| 20 |
Correct |
888 ms |
5508 KB |
Output is correct |
| 21 |
Correct |
1139 ms |
8412 KB |
Output is correct |
| 22 |
Correct |
1116 ms |
6364 KB |
Output is correct |
| 23 |
Correct |
1130 ms |
6292 KB |
Output is correct |
| 24 |
Correct |
1132 ms |
6068 KB |
Output is correct |
| 25 |
Correct |
899 ms |
5788 KB |
Output is correct |
| 26 |
Correct |
1100 ms |
8500 KB |
Output is correct |
