#include <bits/stdc++.h>
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()
#define endl '\n'
#define _ ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define pb push_back
using namespace std;
using ii = pair<int,int>;
using iii = tuple<int,int,int>;
using ll = long long;
const int inf = 1e9+1;
const int mod = 1e9+7;
const int maxn = 1e5+100;
template<typename X,typename Y> bool ckmin(X& x,Y y){return (x>y?x=y,1:0);}
template<typename X,typename Y> bool ckmax(X& x,Y y){return (x<y?x=y,1:0);}
int main(){_
int n;cin>>n;
vector<double>a, b;
for(int i=1;i<=n;++i){
double x,y;cin>>x>>y;
a.pb(x), b.pb(y);
}
sort(all(a), greater<double>());
sort(all(b), greater<double>());
for(int i=1;i<n;++i)a[i] += a[i-1];
double cur = 0, ans = 0;
for(int i=0;i<n;++i){//take i+1 bets on b
cur += b[i];
int l = 0, r = n-1;
while(l<r){//primeira vez que esq >= dir
int md = (l+r)/2;
if(a[md]>=cur)r = md;
else l = md+1;
}
ckmax(ans, min(a[r], cur)-r-i-2);
if(r)ckmax(ans, min(a[r-1], cur)-r-i-1);
}
cout<<fixed<<setprecision(4)<<ans<<endl;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
324 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
324 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| 7 |
Correct |
1 ms |
324 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
212 KB |
Output is correct |
| 12 |
Correct |
1 ms |
328 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
2 ms |
328 KB |
Output is correct |
| 15 |
Correct |
2 ms |
332 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
324 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
0 ms |
212 KB |
Output is correct |
| 5 |
Correct |
1 ms |
212 KB |
Output is correct |
| 6 |
Correct |
0 ms |
212 KB |
Output is correct |
| 7 |
Correct |
1 ms |
324 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
212 KB |
Output is correct |
| 10 |
Correct |
1 ms |
212 KB |
Output is correct |
| 11 |
Correct |
1 ms |
212 KB |
Output is correct |
| 12 |
Correct |
1 ms |
328 KB |
Output is correct |
| 13 |
Correct |
1 ms |
340 KB |
Output is correct |
| 14 |
Correct |
2 ms |
328 KB |
Output is correct |
| 15 |
Correct |
2 ms |
332 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
77 ms |
3360 KB |
Output is correct |
| 18 |
Correct |
73 ms |
3380 KB |
Output is correct |
| 19 |
Correct |
79 ms |
3420 KB |
Output is correct |
| 20 |
Correct |
79 ms |
3376 KB |
Output is correct |
| 21 |
Correct |
84 ms |
3760 KB |
Output is correct |
| 22 |
Correct |
79 ms |
3396 KB |
Output is correct |
| 23 |
Correct |
81 ms |
3388 KB |
Output is correct |
| 24 |
Correct |
86 ms |
3356 KB |
Output is correct |
| 25 |
Correct |
80 ms |
3444 KB |
Output is correct |
| 26 |
Correct |
83 ms |
3816 KB |
Output is correct |
