#include <bits/stdc++.h>
#define fr(i, n, m) for(int i = (n); i < (m); i ++)
#define pb push_back
#define st first
#define nd second
#define pq priority_queue
#define all(x) begin(x), end(x)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
const ll inf = 1e18;
const ld eps = 1e-13;
const ll mod = 1e9+7;
const int i_inf = 1e9;
const int mxn = 1e5;
mt19937 _rand(time(NULL));
clock_t timer = clock();
void solve(){
int n;
cin >> n;
ld l[n], r[n];
fr(i, 0, n){
cin >> l[i] >> r[i];
}
sort(l, l+n);
reverse(l, l+n);
sort(r, r+n);
reverse(r, r+n);
ld ans = 0;
ld sa = 0;
ld sb = 0;
int a = 0;
int b = 0;
fr(i, 1, 2*n+1){
if(a == n) sb += r[b++];
else if(b == n) sa += l[a++];
else{
if(sa < sb){
sa += l[a++];
}
else{
sb += r[b++];
}
}
ans = max(ans, min(sa, sb) - i);
}
cout<<fixed<<setprecision(4)<<ans<<endl;
}
int main(){
solve();
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
256 KB |
Output is correct |
| 3 |
Correct |
1 ms |
384 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
0 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
384 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
256 KB |
Output is correct |
| 3 |
Correct |
1 ms |
384 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
0 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 |
3 ms |
384 KB |
Output is correct |
| 13 |
Correct |
3 ms |
384 KB |
Output is correct |
| 14 |
Correct |
3 ms |
384 KB |
Output is correct |
| 15 |
Correct |
3 ms |
384 KB |
Output is correct |
| 16 |
Correct |
3 ms |
384 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Correct |
1 ms |
256 KB |
Output is correct |
| 3 |
Correct |
1 ms |
384 KB |
Output is correct |
| 4 |
Correct |
1 ms |
384 KB |
Output is correct |
| 5 |
Correct |
0 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 |
3 ms |
384 KB |
Output is correct |
| 13 |
Correct |
3 ms |
384 KB |
Output is correct |
| 14 |
Correct |
3 ms |
384 KB |
Output is correct |
| 15 |
Correct |
3 ms |
384 KB |
Output is correct |
| 16 |
Correct |
3 ms |
384 KB |
Output is correct |
| 17 |
Correct |
231 ms |
4856 KB |
Output is correct |
| 18 |
Correct |
228 ms |
4856 KB |
Output is correct |
| 19 |
Correct |
227 ms |
4856 KB |
Output is correct |
| 20 |
Correct |
230 ms |
4984 KB |
Output is correct |
| 21 |
Correct |
262 ms |
5296 KB |
Output is correct |
| 22 |
Correct |
234 ms |
5112 KB |
Output is correct |
| 23 |
Correct |
226 ms |
4856 KB |
Output is correct |
| 24 |
Correct |
227 ms |
4856 KB |
Output is correct |
| 25 |
Correct |
228 ms |
4984 KB |
Output is correct |
| 26 |
Correct |
266 ms |
5244 KB |
Output is correct |
