#include<bits/stdc++.h>
//#include<ext/pb_ds/assoc_container.hpp>
//#include<ext/pb_ds/tree_policy.hpp>
#define el '\n'
#define fi first
#define sc second
//#define int ll
#define pii pair<int, int>
#define all(v) v.begin(), v.end()
using namespace std;
//#define ordered_set tree<int,null_type,less<int>,rb_tree_tag,tree_order_statistics_node_update>
//using namespace __gnu_pbds;
using ll=long long;
using ull=unsigned long long;
using ld=long double;
const int mod=1e9+7;
const int N=1e5+11;
// find_by_order, order_of_key
int n;
ld a[N], b[N];
void sol()
{
cin >> n;
for(int i=0; i<n; i++)
{
cin >> a[i] >> b[i];
a[i]--;
b[i]--;
}
sort(a, a+n);
sort(b, b+n);
reverse(a, a+n);
reverse(b, b+n);
int id=0;
ld ans1=0, ans2=0, ans=0;
for(int i=0;i<n;i++)
{
ans1 += a[i];
while(id<n && min(ans1-id, ans2-i-1) < min(ans1-id-1, ans2+b[id]-i-1))
{
ans2 += b[id];
id++;
}
ans = max(ans, min(ans1-id, ans2-i-1));
}
cout << fixed << setprecision(4) << ans;
}
signed main()
{
// freopen("SUREBET.INP", "r", stdin);
// freopen("SUREBET.OUT", "w", stdout);
ios_base::sync_with_stdio(0);
cin.tie(0);
int t=1;
//cin >> t;
while(t--)
{
sol();
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
340 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
344 KB |
Output is correct |
13 |
Correct |
1 ms |
340 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
79 ms |
4776 KB |
Output is correct |
18 |
Correct |
68 ms |
4808 KB |
Output is correct |
19 |
Correct |
71 ms |
4816 KB |
Output is correct |
20 |
Correct |
68 ms |
4780 KB |
Output is correct |
21 |
Correct |
75 ms |
5180 KB |
Output is correct |
22 |
Correct |
67 ms |
4736 KB |
Output is correct |
23 |
Correct |
68 ms |
4692 KB |
Output is correct |
24 |
Correct |
69 ms |
4684 KB |
Output is correct |
25 |
Correct |
68 ms |
4776 KB |
Output is correct |
26 |
Correct |
74 ms |
5136 KB |
Output is correct |