#include<bits/stdc++.h>
using namespace std;
using ll = long long;
using graph = vector<vector<int>>;
int main() {
ios::sync_with_stdio(false), cin.tie(nullptr);
int N;
cin >> N;
vector<double> a(N), b(N);
for(int i = 0; i < N; ++i)
cin >> a[i] >> b[i];
sort(a.begin(), a.end(), greater<>());
sort(b.begin(), b.end(), greater<>());
double ans = 0;
int bets_taken = 0;
int ap = 0, bp = 0;
double a_sum = 0, b_sum = 0;
for (int i = 0; i < 2 * N; ++i) {
if (ap < N && bp < N) {
if (a_sum < b_sum) {
a_sum += a[ap++];
} else {
b_sum += b[bp++];
}
} else if (ap < N) {
a_sum += a[ap++];
} else if (bp < N) {
b_sum += b[bp++];
} else {
assert(0);
}
++bets_taken;
ans = max(ans, min(a_sum, b_sum) - bets_taken);
}
cout << fixed << setprecision(4) << ans << endl;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
236 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
236 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
1 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
324 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 |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
336 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Correct |
0 ms |
212 KB |
Output is correct |
| 4 |
Correct |
1 ms |
236 KB |
Output is correct |
| 5 |
Correct |
0 ms |
212 KB |
Output is correct |
| 6 |
Correct |
1 ms |
212 KB |
Output is correct |
| 7 |
Correct |
1 ms |
212 KB |
Output is correct |
| 8 |
Correct |
1 ms |
212 KB |
Output is correct |
| 9 |
Correct |
1 ms |
324 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 |
340 KB |
Output is correct |
| 13 |
Correct |
1 ms |
336 KB |
Output is correct |
| 14 |
Correct |
1 ms |
340 KB |
Output is correct |
| 15 |
Correct |
1 ms |
336 KB |
Output is correct |
| 16 |
Correct |
1 ms |
340 KB |
Output is correct |
| 17 |
Correct |
67 ms |
3152 KB |
Output is correct |
| 18 |
Correct |
71 ms |
3264 KB |
Output is correct |
| 19 |
Correct |
66 ms |
3264 KB |
Output is correct |
| 20 |
Correct |
73 ms |
3380 KB |
Output is correct |
| 21 |
Correct |
75 ms |
3532 KB |
Output is correct |
| 22 |
Correct |
70 ms |
3260 KB |
Output is correct |
| 23 |
Correct |
69 ms |
3160 KB |
Output is correct |
| 24 |
Correct |
76 ms |
3144 KB |
Output is correct |
| 25 |
Correct |
67 ms |
3256 KB |
Output is correct |
| 26 |
Correct |
76 ms |
3624 KB |
Output is correct |
