Submission #841816

# Submission time Handle Problem Language Result Execution time Memory
841816 2023-09-02T06:54:52 Z WLZ Sure Bet (CEOI17_sure) C++17
100 / 100
70 ms 2244 KB
#include <bits/stdc++.h>
using namespace std;
 
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n;
  cin >> n;
  vector<double> v_a, v_b;
  for (int i = 0; i < n; i++) {
    double a, b;
    cin >> a >> b;
    v_a.push_back(a);
    v_b.push_back(b);
  }
  sort(v_a.rbegin(), v_a.rend());
  sort(v_b.rbegin(), v_b.rend());
  double a = 0.0, b = 0.0, ans = 0.0;
  for (int x = 0, y = 0; x <= n; x++) {
    if (x > 0) a += v_a[x - 1] - 1, b -= 1.0;
    while (y < n && a - b > 1e-7) {
      ans = max(ans, min(a, b));
      b += v_b[y++] - 1, a -= 1.0;
    }
    ans = max(ans, min(a, b));
  }
  cout << fixed << setprecision(4) << ans << '\n';
  return 0;
}
# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 57 ms 1988 KB Output is correct
18 Correct 70 ms 2224 KB Output is correct
19 Correct 61 ms 2052 KB Output is correct
20 Correct 60 ms 2088 KB Output is correct
21 Correct 60 ms 1988 KB Output is correct
22 Correct 56 ms 2000 KB Output is correct
23 Correct 61 ms 2244 KB Output is correct
24 Correct 58 ms 1988 KB Output is correct
25 Correct 59 ms 2212 KB Output is correct
26 Correct 60 ms 2232 KB Output is correct