#include <bits/stdc++.h>
#include <sstream>
#include <fstream>
#define et "\n"
#define ll long long
#define ff first
#define ss second
#define pb push_back
#define ioi ios::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define yes cout << "YES" << endl
#define no cout << "NO" << endl
#define M 1000000007
using namespace std;
ll n,m,k;
string s1;
map <ll,ll> mp;
double ans,cnt,cnt1;
double a[211111],b[211111];
void solve() {
cin >> n;
ans = 0;
for (int i = 1;i <= n;i++) {
cin >> a[i] >> b[i];
}
sort(a + 1,a + n + 1);
sort(b + 1,b + n + 1);
cnt = 0;
cnt1 = 0;
for (int i = n;i >= 1;i --) {
cnt += a[i] - 1.0;
cnt1 -= (double)(n - i) + 1.0;
for (int j = n;j >= 1;j--) {
cnt1 += b[j] - 1.0;
cnt -= 1.0;
ans = max(ans,min(cnt,cnt1));
}
cnt += (double)n;
cnt1 = 0;
// cout << ans << ' ' << i << ' ' << b[i] << et;
}
cnt = 0;
cnt1 = 0;
for (int i = n;i >= 1;i --) {
cnt += b[i] - 1.0;
cnt1 -= (double)(n - i) + 1.0;
for (int j = n;j >= 1;j--) {
cnt1 += a[j] - 1.0;
cnt -= 1.0;
ans = max(ans,min(cnt,cnt1));
}
cnt += (double)n;
cnt1 = 0;
// cout << ans << ' ' << i << ' ' << b[i] << et;
}
printf("%.4lf",(double)ans);
}
int main() {
ioi;
ll tt = 1;
// cin >> tt;
while (tt--) {
solve();
}
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2396 KB |
Output is correct |
5 |
Correct |
0 ms |
2512 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2396 KB |
Output is correct |
5 |
Correct |
0 ms |
2512 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2392 KB |
Output is correct |
11 |
Correct |
1 ms |
2396 KB |
Output is correct |
12 |
Correct |
4 ms |
2396 KB |
Output is correct |
13 |
Correct |
4 ms |
2396 KB |
Output is correct |
14 |
Correct |
4 ms |
2396 KB |
Output is correct |
15 |
Correct |
4 ms |
2396 KB |
Output is correct |
16 |
Correct |
4 ms |
2396 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
2392 KB |
Output is correct |
2 |
Correct |
1 ms |
2396 KB |
Output is correct |
3 |
Correct |
1 ms |
2396 KB |
Output is correct |
4 |
Correct |
1 ms |
2396 KB |
Output is correct |
5 |
Correct |
0 ms |
2512 KB |
Output is correct |
6 |
Correct |
0 ms |
2396 KB |
Output is correct |
7 |
Correct |
1 ms |
2396 KB |
Output is correct |
8 |
Correct |
1 ms |
2396 KB |
Output is correct |
9 |
Correct |
1 ms |
2396 KB |
Output is correct |
10 |
Correct |
1 ms |
2392 KB |
Output is correct |
11 |
Correct |
1 ms |
2396 KB |
Output is correct |
12 |
Correct |
4 ms |
2396 KB |
Output is correct |
13 |
Correct |
4 ms |
2396 KB |
Output is correct |
14 |
Correct |
4 ms |
2396 KB |
Output is correct |
15 |
Correct |
4 ms |
2396 KB |
Output is correct |
16 |
Correct |
4 ms |
2396 KB |
Output is correct |
17 |
Execution timed out |
2068 ms |
2824 KB |
Time limit exceeded |
18 |
Halted |
0 ms |
0 KB |
- |