#include <bits/stdc++.h>
#pragma GCC optimize("O3")
using namespace std;
double f(int x, int y, vector<double>& a, vector<double>& b){
return min(a[x], b[y])-x-y;
}
int main(){
cin.tie(0);
ios::sync_with_stdio(0);
cout << setprecision(4) << fixed;
int n;
double sol = 0;
cin >> n;
vector<double> a(n), b(n);
for(int i = 0; i < n; i++) cin >> a[i] >> b[i];
sort(a.rbegin(), a.rend());
sort(b.rbegin(), b.rend());
a.insert(a.begin(), 0);
b.insert(b.begin(), 0);
for(int i = 1; i <= n; i++) a[i] += a[i-1], b[i] += b[i-1];
for(int i = 0; i <= n; i++){
int l = 0, h = n, m;
while(l < h){
if(l == h-1){
if(f(i, l, a, b) > f(i, h, a, b)) h--;
else l++;
}
else{
m = (l+h)/2;
if(f(i, m, a, b) >= f(i, m+1, a, b)) h = m;
else l = m+1;
}
}
sol = max(sol, f(i, l, a, b));
}
cout << sol << "\n";
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
384 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
1 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
384 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
1 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
384 KB |
Output is correct |
| 7 |
Correct |
1 ms |
384 KB |
Output is correct |
| 8 |
Correct |
1 ms |
384 KB |
Output is correct |
| 9 |
Correct |
1 ms |
384 KB |
Output is correct |
| 10 |
Correct |
1 ms |
384 KB |
Output is correct |
| 11 |
Correct |
1 ms |
384 KB |
Output is correct |
| 12 |
Correct |
1 ms |
384 KB |
Output is correct |
| 13 |
Correct |
2 ms |
384 KB |
Output is correct |
| 14 |
Correct |
2 ms |
384 KB |
Output is correct |
| 15 |
Correct |
2 ms |
384 KB |
Output is correct |
| 16 |
Correct |
2 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
384 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
1 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
384 KB |
Output is correct |
| 7 |
Correct |
1 ms |
384 KB |
Output is correct |
| 8 |
Correct |
1 ms |
384 KB |
Output is correct |
| 9 |
Correct |
1 ms |
384 KB |
Output is correct |
| 10 |
Correct |
1 ms |
384 KB |
Output is correct |
| 11 |
Correct |
1 ms |
384 KB |
Output is correct |
| 12 |
Correct |
1 ms |
384 KB |
Output is correct |
| 13 |
Correct |
2 ms |
384 KB |
Output is correct |
| 14 |
Correct |
2 ms |
384 KB |
Output is correct |
| 15 |
Correct |
2 ms |
384 KB |
Output is correct |
| 16 |
Correct |
2 ms |
384 KB |
Output is correct |
| 17 |
Correct |
108 ms |
4088 KB |
Output is correct |
| 18 |
Correct |
108 ms |
4100 KB |
Output is correct |
| 19 |
Correct |
110 ms |
4088 KB |
Output is correct |
| 20 |
Correct |
111 ms |
4092 KB |
Output is correct |
| 21 |
Correct |
113 ms |
4472 KB |
Output is correct |
| 22 |
Correct |
108 ms |
4088 KB |
Output is correct |
| 23 |
Correct |
111 ms |
4216 KB |
Output is correct |
| 24 |
Correct |
110 ms |
4200 KB |
Output is correct |
| 25 |
Correct |
118 ms |
4088 KB |
Output is correct |
| 26 |
Correct |
114 ms |
4472 KB |
Output is correct |
