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Submission #600239

# Submission time Handle Problem Language Result Execution time Memory
600239 2022-07-20T14:50:50 Z MilosMilutinovic Hacker (BOI15_hac) C++14
40 / 100
 1000 ms 2784 KB 
/**
 *    author:  wxhtzdy
 *    created: 20.07.2022 16:47:00
**/
#include <bits/stdc++.h>

using namespace std;

int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);  
  int n;
  cin >> n;
  vector<int> a(n);
  for (int i = 0; i < n; i++) {
    cin >> a[i];
  }
  vector<long long> pref(2 * n + 1);
  for (int i = 0; i < 2 * n; i++) {
    pref[i + 1] = pref[i] + a[i % n];
  }
  int moves = (n + 1) / 2;   
  vector<long long> val(n + 1);
  for (int i = 1; i <= n; i++) {
    val[i] = pref[i + moves - 1] - pref[i - 1];
  }
  long long ans = 0;
  for (int i = 1; i <= n; i++) {
    long long mn = val[i];
    for (int j = 0; j < moves; j++) {
      int idx = i - j;
      if (idx <= 0) {
        idx = idx + n;
      }
      mn = min(mn, val[idx]);
    }
    ans = max(ans, mn);     
  }
  cout << ans << '\n';                                                     
  return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 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 296 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 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 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 320 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 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 296 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 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 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 320 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 2 ms 316 KB Output is correct
22 Correct 7 ms 340 KB Output is correct
23 Correct 17 ms 468 KB Output is correct
24 Correct 6 ms 340 KB Output is correct
25 Correct 27 ms 468 KB Output is correct
26 Correct 18 ms 480 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 316 KB Output is correct
30 Correct 16 ms 472 KB Output is correct
31 Correct 20 ms 460 KB Output is correct

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 316 KB Output is correct
3 Correct 19 ms 468 KB Output is correct
4 Execution timed out 1086 ms 2784 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 0 ms 212 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 296 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 1 ms 212 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 212 KB Output is correct
13 Correct 1 ms 212 KB Output is correct
14 Correct 1 ms 320 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 2 ms 316 KB Output is correct
22 Correct 7 ms 340 KB Output is correct
23 Correct 17 ms 468 KB Output is correct
24 Correct 6 ms 340 KB Output is correct
25 Correct 27 ms 468 KB Output is correct
26 Correct 18 ms 480 KB Output is correct
27 Correct 1 ms 212 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 316 KB Output is correct
30 Correct 16 ms 472 KB Output is correct
31 Correct 20 ms 460 KB Output is correct
32 Correct 1 ms 212 KB Output is correct
33 Correct 1 ms 316 KB Output is correct
34 Correct 19 ms 468 KB Output is correct
35 Execution timed out 1086 ms 2784 KB Time limit exceeded
36 Halted 0 ms 0 KB -