답안 #470774

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
470774	2021-09-05T14:17:05 Z	nobik	Safety (NOI18_safety)	C++14	100 / 100	279 ms	21680 KB

safety

// https://oj.uz/problem/view/NOI18_safety
#include <bits/stdc++.h>
// #include <atcoder/all>

using namespace std;
// using namespace atcoder;

#define REP(i, n) for (int i = 0; i < (n); ++i)
#define SZ(a) ((int)(a).size())
#define ALL(a) (a).begin(), (a).end()

using ll = long long;
using vi = vector<int>;
using vvi = vector<vi>;
// using mint = modint998244353;

constexpr int kInf = 1000 * 1000 * 1000 + 7;
constexpr long long kInfLL = 1e18;

struct TaggedSet {
  multiset<long long> s;
  long long add{};

  void Insert(long long x) { s.insert(x - add); }
  void Erase(long long x) { s.erase(s.find(x - add)); }
  long long Min() { return *s.begin() + add; }
  long long Max() { return *s.rbegin() + add; }
  void Add(long long x) { add += x; }
  bool Empty() { return s.empty(); }
};

int main() {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);

  int n, h;
  cin >> n >> h;

  vi a(n);
  REP(i, n) cin >> a[i];

  TaggedSet neg, pos;
  neg.Insert(a[0]);
  pos.Insert(a[0]);

  long long result{};
  for (int i = 1; i < n; ++i) {
    neg.Add(-h); pos.Add(h);
    while (!neg.Empty() && neg.Min() < 0) neg.Erase(neg.Min());
    if (neg.Empty()) neg.Insert(0);
    if (pos.Empty()) pos.Insert(0);
    long long mn = pos.Min();
    int l = a[i], r = a[i];
    if (l <= mn) {
      neg.Insert(l);
    } else {
      pos.Insert(l);
      pos.Erase(mn);
      neg.Insert(mn);
      result += l - mn;
    }
    long long mx = neg.Max();
    if (mx <= r) {
      pos.Insert(r);
    } else {
      neg.Insert(r);
      neg.Erase(mx);
      pos.Insert(mx);
      result += mx - r;
    }
  }

  cout << result << '\n';
}

Subtask #1
3.0 / 3.0

#	결과	실행 시간	메모리	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	1 ms	204 KB	Output is correct
5	Correct	1 ms	312 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct

Subtask #2
4.0 / 4.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 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	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct

Subtask #3
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	204 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	204 KB	Output is correct
5	Correct	1 ms	204 KB	Output is correct
6	Correct	1 ms	312 KB	Output is correct

Subtask #4
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	153 ms	13008 KB	Output is correct
2	Correct	221 ms	20364 KB	Output is correct
3	Correct	279 ms	21284 KB	Output is correct

Subtask #5
6.0 / 6.0

#	결과	실행 시간	메모리	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	1 ms	204 KB	Output is correct
5	Correct	1 ms	312 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	1 ms	204 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	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	316 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct

Subtask #6
11.0 / 11.0

#	결과	실행 시간	메모리	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	1 ms	204 KB	Output is correct
5	Correct	1 ms	312 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	1 ms	204 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	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	316 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	312 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	308 KB	Output is correct

Subtask #7
11.0 / 11.0

#	결과	실행 시간	메모리	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	1 ms	204 KB	Output is correct
5	Correct	1 ms	312 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	1 ms	204 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	204 KB	Output is correct
12	Correct	1 ms	204 KB	Output is correct
13	Correct	1 ms	316 KB	Output is correct
14	Correct	1 ms	332 KB	Output is correct
15	Correct	1 ms	332 KB	Output is correct
16	Correct	1 ms	332 KB	Output is correct
17	Correct	1 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	1 ms	332 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	204 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	312 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	308 KB	Output is correct
28	Correct	3 ms	588 KB	Output is correct
29	Correct	3 ms	716 KB	Output is correct
30	Correct	2 ms	460 KB	Output is correct
31	Correct	2 ms	452 KB	Output is correct
32	Correct	2 ms	460 KB	Output is correct
33	Correct	2 ms	460 KB	Output is correct
34	Correct	2 ms	580 KB	Output is correct

Subtask #8
22.0 / 22.0

#	결과	실행 시간	메모리	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	1 ms	204 KB	Output is correct
5	Correct	1 ms	312 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	1 ms	204 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	204 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	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	312 KB	Output is correct
19	Correct	1 ms	316 KB	Output is correct
20	Correct	1 ms	332 KB	Output is correct
21	Correct	1 ms	332 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	332 KB	Output is correct
29	Correct	1 ms	204 KB	Output is correct
30	Correct	1 ms	332 KB	Output is correct
31	Correct	1 ms	312 KB	Output is correct
32	Correct	1 ms	332 KB	Output is correct
33	Correct	1 ms	308 KB	Output is correct
34	Correct	3 ms	588 KB	Output is correct
35	Correct	3 ms	716 KB	Output is correct
36	Correct	2 ms	460 KB	Output is correct
37	Correct	2 ms	452 KB	Output is correct
38	Correct	2 ms	460 KB	Output is correct
39	Correct	2 ms	460 KB	Output is correct
40	Correct	2 ms	580 KB	Output is correct
41	Correct	3 ms	844 KB	Output is correct
42	Correct	3 ms	716 KB	Output is correct
43	Correct	2 ms	588 KB	Output is correct
44	Correct	3 ms	588 KB	Output is correct
45	Correct	2 ms	584 KB	Output is correct
46	Correct	2 ms	460 KB	Output is correct

Subtask #9
29.0 / 29.0

#	결과	실행 시간	메모리	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	1 ms	204 KB	Output is correct
5	Correct	1 ms	312 KB	Output is correct
6	Correct	1 ms	204 KB	Output is correct
7	Correct	0 ms	204 KB	Output is correct
8	Correct	1 ms	204 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	204 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	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	312 KB	Output is correct
19	Correct	153 ms	13008 KB	Output is correct
20	Correct	221 ms	20364 KB	Output is correct
21	Correct	279 ms	21284 KB	Output is correct
22	Correct	1 ms	316 KB	Output is correct
23	Correct	1 ms	332 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	1 ms	332 KB	Output is correct
26	Correct	1 ms	332 KB	Output is correct
27	Correct	1 ms	332 KB	Output is correct
28	Correct	1 ms	332 KB	Output is correct
29	Correct	1 ms	332 KB	Output is correct
30	Correct	1 ms	332 KB	Output is correct
31	Correct	1 ms	332 KB	Output is correct
32	Correct	1 ms	204 KB	Output is correct
33	Correct	1 ms	332 KB	Output is correct
34	Correct	1 ms	312 KB	Output is correct
35	Correct	1 ms	332 KB	Output is correct
36	Correct	1 ms	308 KB	Output is correct
37	Correct	3 ms	588 KB	Output is correct
38	Correct	3 ms	716 KB	Output is correct
39	Correct	2 ms	460 KB	Output is correct
40	Correct	2 ms	452 KB	Output is correct
41	Correct	2 ms	460 KB	Output is correct
42	Correct	2 ms	460 KB	Output is correct
43	Correct	2 ms	580 KB	Output is correct
44	Correct	3 ms	844 KB	Output is correct
45	Correct	3 ms	716 KB	Output is correct
46	Correct	2 ms	588 KB	Output is correct
47	Correct	3 ms	588 KB	Output is correct
48	Correct	2 ms	584 KB	Output is correct
49	Correct	2 ms	460 KB	Output is correct
50	Correct	220 ms	21680 KB	Output is correct
51	Correct	178 ms	18016 KB	Output is correct
52	Correct	75 ms	9888 KB	Output is correct
53	Correct	89 ms	11524 KB	Output is correct
54	Correct	99 ms	11804 KB	Output is correct
55	Correct	86 ms	10028 KB	Output is correct
56	Correct	77 ms	11060 KB	Output is correct
57	Correct	75 ms	10152 KB	Output is correct
58	Correct	63 ms	8284 KB	Output is correct
59	Correct	81 ms	11220 KB	Output is correct

답안 #470774

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