#include <bits/stdc++.h>
#define speed ios_base::sync_with_stdio(0); cin.tie(0)
#define all(x) (x).begin(),(x).end()
#define F first
#define S second
//#pragma GCC optimize("O3")
//#pragma GCC target("avx,avx2")
//#pragma GCC target("popcnt")
namespace{using namespace std;}
typedef long long ll;
typedef double db;
typedef long double ldb;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
const ll MAX=1e5+10,P=1e9+7;
const ll INF=0x3f3f3f3f,oo=0x3f3f3f3f3f3f3f3f;
const ldb eps=1e-6;
int n;
vector<ldb> a,b;
vector<ldb> pa,pb;
ldb w(int l,int r) {
return min(pa[l],pb[r]);
}
int main() {
// speed;
cin>>n;
for (int i=1;i<=n;i++) {
ldb x,y;
cin>>x>>y;
a.push_back(x);
b.push_back(y);
}
auto cmp=[&](ldb a,ldb b) {
return a>b;
};
sort(all(a),cmp);
sort(all(b),cmp);
pa.resize(n+1);
pb.resize(n+1);
pa[0]=0;
pb[0]=0;
for (int i=1;i<=n;i++) {
pa[i]=pa[i-1]+a[i-1];
pb[i]=pb[i-1]+b[i-1];
}
ldb ans=0;
for (int i=1;i<=2*n;i++) {
// cout<<i<<" i\n"<<flush;
int l=max(0,i-n),r=min(i,n);
while (l<r) {
int m1=(2*l+r)/3;
int m2=(l+2*r+1)/3;
// cout<<l<<" "<<m1<<" "<<m2<<" "<<r<<"\n"<<flush;
if (w(m1,i-m1)<w(m2,i-m2)) l=m1+1;
else r=m2-1;
}
// cout<<l<<" "<<i-l<<" "<<w(i,i-l)<<"\n";
ans=max(ans,w(l,i-l)-i);
}
printf("%.4lf",(double)ans);
return 0;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 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 |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 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 |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 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 |
2 ms |
348 KB |
Output is correct |
| 13 |
Correct |
2 ms |
348 KB |
Output is correct |
| 14 |
Correct |
2 ms |
344 KB |
Output is correct |
| 15 |
Correct |
2 ms |
348 KB |
Output is correct |
| 16 |
Correct |
2 ms |
348 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 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 |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
1 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 |
2 ms |
348 KB |
Output is correct |
| 13 |
Correct |
2 ms |
348 KB |
Output is correct |
| 14 |
Correct |
2 ms |
344 KB |
Output is correct |
| 15 |
Correct |
2 ms |
348 KB |
Output is correct |
| 16 |
Correct |
2 ms |
348 KB |
Output is correct |
| 17 |
Correct |
145 ms |
8104 KB |
Output is correct |
| 18 |
Correct |
155 ms |
8332 KB |
Output is correct |
| 19 |
Correct |
157 ms |
8108 KB |
Output is correct |
| 20 |
Correct |
148 ms |
8104 KB |
Output is correct |
| 21 |
Correct |
158 ms |
8880 KB |
Output is correct |
| 22 |
Correct |
154 ms |
8108 KB |
Output is correct |
| 23 |
Correct |
152 ms |
8292 KB |
Output is correct |
| 24 |
Correct |
146 ms |
8228 KB |
Output is correct |
| 25 |
Correct |
148 ms |
8224 KB |
Output is correct |
| 26 |
Correct |
157 ms |
8520 KB |
Output is correct |
