//gm --- akezhon
#include <bits/stdc++.h>
//#pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define int long long
#define pb push_back
#define F first
#define S second
#define all(v) v.begin(),v.end()
#define pii pair<int,int>
#define tm (tl+tr)/2
#define TL v+v, tl, tm
#define TR v+v+1, tm+1, tr
#define DA l <= tl && tr <= r
#define NET r < tl || tr < l
#define double long double
using namespace std;
const int N=1e5+7;
const int M=1e9+7;
const int inf=1e9;
double a[N], b[N];
int n;
void AlemAmenov(){
cin >> n;
for(int i=1; i <= n; i++){
cin >> a[i] >> b[i];
}
sort(a+1, a+1+n);
sort(b+1, b+1+n);
reverse(a+1, a+1+n);
reverse(b+1, b+1+n);
double ans=0, aa=0, bb=0;
int j=0;
for(int i=1; i <= n; i++){
aa += a[i];
ans = max(ans, min(aa, bb)-i-j);
while(bb < aa && j < n){
bb += b[++j];
ans = max(ans, min(aa, bb)-i-j);
}
ans = max(ans, min(aa, bb)-i-j);
}
cout << fixed << setprecision(4) << ans;
}
signed main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
// freopen("promote.in", "r", stdin);
// freopen("promote.out", "w", stdout);
int RealName=1;
// cin >> RealName;
// int C=0;
while(RealName--){
// cout << "Case " << ++C << ":\n";
AlemAmenov();
}
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 8 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2528 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2396 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 2 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 4 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 5 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 6 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 7 |
Correct |
1 ms |
2392 KB |
Output is correct |
| 8 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 9 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 10 |
Correct |
0 ms |
2396 KB |
Output is correct |
| 11 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 12 |
Correct |
1 ms |
2528 KB |
Output is correct |
| 13 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 14 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 15 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 16 |
Correct |
1 ms |
2396 KB |
Output is correct |
| 17 |
Correct |
67 ms |
3484 KB |
Output is correct |
| 18 |
Correct |
70 ms |
3408 KB |
Output is correct |
| 19 |
Correct |
66 ms |
3528 KB |
Output is correct |
| 20 |
Correct |
65 ms |
3468 KB |
Output is correct |
| 21 |
Correct |
68 ms |
3472 KB |
Output is correct |
| 22 |
Correct |
65 ms |
4816 KB |
Output is correct |
| 23 |
Correct |
65 ms |
5192 KB |
Output is correct |
| 24 |
Correct |
66 ms |
4732 KB |
Output is correct |
| 25 |
Correct |
65 ms |
4948 KB |
Output is correct |
| 26 |
Correct |
69 ms |
5116 KB |
Output is correct |
