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Submission #467684

# Submission time Handle Problem Language Result Execution time Memory
467684 2021-08-24T02:53:31 Z thaixuandang Safety (NOI18_safety) C++17
100 / 100
 138 ms 5512 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#ifndef LOCAL
#define debug(...) (void)0
#endif

using namespace std;

namespace __gnu_pbds {
  template<typename T>
  using ordered_set = tree<
    T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>; 
}

using __gnu_pbds::ordered_set;
using int128 = __int128;

template<typename T>
bool maximize(T& target, const T& value) 
{ return target < value ? (target = value, true) : false; }

template<typename T>
bool minimize(T& target, const T& value)
{ return target > value ? (target = value, true) : false; }

istream& operator>>(istream& is, int128& x)
{ long long y; is >> y, x = y; return is; }

ostream& operator<<(ostream& os, const int128& x) 
{ assert(x >= LONG_LONG_MIN && x <= LONG_LONG_MAX); return os << (long long)x; }

const int inf = 0x3f3f3f3f;
const long long linf = 0x3f3f3f3f3f3f3f3f;
const int dx[] = {1, 0, -1, 0};
const int dy[] = {0, 1, 0, -1};

int main() {
  int n, h;
  cin >> n >> h;
  priority_queue<long long> left;
  priority_queue<long long, vector<long long>, greater<long long>> right;
  long long dl = 0, dr = 0;
  long long ans = 0;
  for (int i = 0; i < n; ++i) {
    int a;
    cin >> a;
    if (i == 0) {
      left.push(a);
      right.push(a);
      continue;
    }
    dl -= h, dr += h;
    if (a < left.top() + dl) {
      ans += left.top() + dl - a;
      left.push(a - dl);
      left.push(a - dl);
      right.push(left.top() + dl - dr);
      left.pop();
    } else if (a > right.top() + dr) {
      ans += a - (right.top() + dr);
      right.push(a - dr);
      right.push(a - dr);
      left.push(right.top() + dr - dl);
      right.pop();
    } else {
      left.push(a - dl);
      right.push(a - dr);
    }
  }
  cout << ans << '\n';
  return 0;
}

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 204 KB Output is correct

Subtask #2
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 292 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 300 KB Output is correct
5 Correct 1 ms 204 KB Output is correct

Subtask #3
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct

Subtask #4
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 4720 KB Output is correct
2 Correct 124 ms 5128 KB Output is correct
3 Correct 121 ms 5324 KB Output is correct

Subtask #5
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 292 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 296 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct

Subtask #6
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 292 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 296 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 292 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 292 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct

Subtask #7
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 292 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 296 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 292 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 292 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 3 ms 460 KB Output is correct
29 Correct 2 ms 440 KB Output is correct
30 Correct 3 ms 460 KB Output is correct
31 Correct 2 ms 332 KB Output is correct
32 Correct 2 ms 460 KB Output is correct
33 Correct 2 ms 460 KB Output is correct
34 Correct 3 ms 460 KB Output is correct

Subtask #8
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 292 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 296 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 292 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 292 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 204 KB Output is correct
34 Correct 3 ms 460 KB Output is correct
35 Correct 2 ms 440 KB Output is correct
36 Correct 3 ms 460 KB Output is correct
37 Correct 2 ms 332 KB Output is correct
38 Correct 2 ms 460 KB Output is correct
39 Correct 2 ms 460 KB Output is correct
40 Correct 3 ms 460 KB Output is correct
41 Correct 4 ms 460 KB Output is correct
42 Correct 3 ms 332 KB Output is correct
43 Correct 3 ms 460 KB Output is correct
44 Correct 3 ms 436 KB Output is correct
45 Correct 3 ms 460 KB Output is correct
46 Correct 3 ms 460 KB Output is correct

Subtask #9
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 0 ms 204 KB Output is correct
6 Correct 1 ms 300 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 292 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 300 KB Output is correct
12 Correct 1 ms 204 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 0 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 80 ms 4720 KB Output is correct
20 Correct 124 ms 5128 KB Output is correct
21 Correct 121 ms 5324 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 296 KB Output is correct
24 Correct 1 ms 204 KB Output is correct
25 Correct 1 ms 204 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 204 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 292 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 1 ms 204 KB Output is correct
32 Correct 1 ms 204 KB Output is correct
33 Correct 1 ms 292 KB Output is correct
34 Correct 1 ms 204 KB Output is correct
35 Correct 1 ms 204 KB Output is correct
36 Correct 1 ms 204 KB Output is correct
37 Correct 3 ms 460 KB Output is correct
38 Correct 2 ms 440 KB Output is correct
39 Correct 3 ms 460 KB Output is correct
40 Correct 2 ms 332 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 2 ms 460 KB Output is correct
43 Correct 3 ms 460 KB Output is correct
44 Correct 4 ms 460 KB Output is correct
45 Correct 3 ms 332 KB Output is correct
46 Correct 3 ms 460 KB Output is correct
47 Correct 3 ms 436 KB Output is correct
48 Correct 3 ms 460 KB Output is correct
49 Correct 3 ms 460 KB Output is correct
50 Correct 130 ms 5512 KB Output is correct
51 Correct 120 ms 4960 KB Output is correct
52 Correct 81 ms 5088 KB Output is correct
53 Correct 95 ms 5148 KB Output is correct
54 Correct 138 ms 5188 KB Output is correct
55 Correct 96 ms 4996 KB Output is correct
56 Correct 105 ms 5084 KB Output is correct
57 Correct 87 ms 5112 KB Output is correct
58 Correct 64 ms 4444 KB Output is correct
59 Correct 100 ms 4940 KB Output is correct