#include <bits/stdc++.h>
// author : aykhn
using namespace std;
typedef long long ll;
#define pb push_back
#define ins insert
#define mpr make_pair
#define all(v) v.begin(), v.end()
#define bpc __builtin_popcount
#define bpcll __builtin_popcountll
#define pii pair<int, int>
#define pll pair<ll, ll>
#define fi first
#define se second
#define infll 0x3F3F3F3F3F3F3F3F
#define inf 0x3F3F3F3F
void _()
{
int n;
cin >> n;
double a[n], b[n];
double res = 0;
for (int i = 0; i < n; i++) cin >> a[i] >> b[i];
sort(a, a + n, greater<double> ());
sort(b, b + n, greater<double> ());
int i = 0;
int j = 0;
double sum1 = 0, sum2 = 0;
while (i < n || j < n)
{
if (i == n) sum2 += b[j++];
else if (j == n) sum1 += a[i++];
else if (sum1 + a[i] <= sum2 + b[j]) sum1 += a[i++];
else sum2 += b[j++];
res = max(res, min(sum2, sum1) - i - j);
}
cout.precision(4);
cout << fixed << res << '\n';
}
signed main()
{
int t = 1;
// cin >> t;
for (int tt = 0; tt < t; tt++)
{
_();
}
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
1 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
444 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 |
344 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
0 ms |
348 KB |
Output is correct |
| 3 |
Correct |
1 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
0 ms |
348 KB |
Output is correct |
| 8 |
Correct |
1 ms |
348 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Correct |
1 ms |
348 KB |
Output is correct |
| 13 |
Correct |
1 ms |
444 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 |
344 KB |
Output is correct |
| 17 |
Correct |
92 ms |
3104 KB |
Output is correct |
| 18 |
Correct |
94 ms |
3152 KB |
Output is correct |
| 19 |
Correct |
93 ms |
3236 KB |
Output is correct |
| 20 |
Correct |
94 ms |
3240 KB |
Output is correct |
| 21 |
Correct |
105 ms |
3668 KB |
Output is correct |
| 22 |
Correct |
92 ms |
3152 KB |
Output is correct |
| 23 |
Correct |
93 ms |
3112 KB |
Output is correct |
| 24 |
Correct |
94 ms |
3152 KB |
Output is correct |
| 25 |
Correct |
102 ms |
3412 KB |
Output is correct |
| 26 |
Correct |
106 ms |
3668 KB |
Output is correct |
