답안 #899042

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
899042	2024-01-05T11:51:47 Z	d4xn	Bigger segments (IZhO19_segments)	C++17	100 / 100	107 ms	45384 KB

segments

#include <bits/stdc++.h>
using namespace std;

#define int long long

const int N = 5e5+1, inf = LLONG_MAX;

int n, a[N], pre[N];
vector<pair<int, int>> dp[N];

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

  cin >> n;
  a[0] = pre[0] = 0;
  for (int i = 1; i <= n; i++) {
    cin >> a[i];
    pre[i] = a[i] + pre[i-1];
  }

  dp[0].push_back(make_pair(0, 0));
  for (int i = 0; i < n; i++) {  
    pair<int, int> p = make_pair(-inf, inf);
    for (auto& [x, y] : dp[i]) {
      if (x > p.first) {
        p = make_pair(x, y);
      }
      else if (x == p.first) {
        p.second = min(p.second, y);
      }
    }

    // no hago grupo nuevo
    dp[i+1].push_back(make_pair(p.first, p.second + a[i+1]));

    // hago grupo nuevo
    int l = i+1;
    int r = n+1;
    while (l < r) {
      int mid = (l+r)/2;

      int x = pre[mid] - pre[i];
      if (x >= p.second) r = mid;
      else l = mid+1;
    }
    if (r == n+1) continue; // cogiendo todos sigue siendo menor

    dp[l].push_back(make_pair(p.first+1, pre[l] - pre[i]));
  }

  int ans = -inf;
  for (auto& [x, y] : dp[n]) {
    ans = max(ans, x);
  }
  cout << ans << "\n";
}

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	14940 KB	Output is correct
2	Correct	3 ms	14940 KB	Output is correct
3	Correct	3 ms	14940 KB	Output is correct
4	Correct	3 ms	14940 KB	Output is correct
5	Correct	3 ms	14940 KB	Output is correct
6	Correct	3 ms	14940 KB	Output is correct
7	Correct	3 ms	14964 KB	Output is correct
8	Correct	3 ms	15192 KB	Output is correct
9	Correct	3 ms	14940 KB	Output is correct
10	Correct	3 ms	14936 KB	Output is correct
11	Correct	3 ms	14940 KB	Output is correct
12	Correct	3 ms	14940 KB	Output is correct
13	Correct	3 ms	14940 KB	Output is correct
14	Correct	3 ms	14940 KB	Output is correct
15	Correct	3 ms	14940 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	14940 KB	Output is correct
2	Correct	3 ms	14940 KB	Output is correct
3	Correct	3 ms	14940 KB	Output is correct
4	Correct	3 ms	14940 KB	Output is correct
5	Correct	3 ms	14940 KB	Output is correct
6	Correct	3 ms	14940 KB	Output is correct
7	Correct	3 ms	14964 KB	Output is correct
8	Correct	3 ms	15192 KB	Output is correct
9	Correct	3 ms	14940 KB	Output is correct
10	Correct	3 ms	14936 KB	Output is correct
11	Correct	3 ms	14940 KB	Output is correct
12	Correct	3 ms	14940 KB	Output is correct
13	Correct	3 ms	14940 KB	Output is correct
14	Correct	3 ms	14940 KB	Output is correct
15	Correct	3 ms	14940 KB	Output is correct
16	Correct	3 ms	14940 KB	Output is correct
17	Correct	3 ms	14940 KB	Output is correct
18	Correct	3 ms	14940 KB	Output is correct
19	Correct	3 ms	14940 KB	Output is correct
20	Correct	4 ms	14940 KB	Output is correct
21	Correct	5 ms	14940 KB	Output is correct
22	Correct	3 ms	15028 KB	Output is correct
23	Correct	3 ms	14940 KB	Output is correct
24	Correct	3 ms	14988 KB	Output is correct
25	Correct	3 ms	14940 KB	Output is correct
26	Correct	3 ms	14936 KB	Output is correct
27	Correct	3 ms	14940 KB	Output is correct
28	Correct	3 ms	14940 KB	Output is correct
29	Correct	3 ms	14940 KB	Output is correct
30	Correct	3 ms	14940 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	14940 KB	Output is correct
2	Correct	3 ms	14940 KB	Output is correct
3	Correct	3 ms	14940 KB	Output is correct
4	Correct	3 ms	14940 KB	Output is correct
5	Correct	3 ms	14940 KB	Output is correct
6	Correct	3 ms	14940 KB	Output is correct
7	Correct	3 ms	14964 KB	Output is correct
8	Correct	3 ms	15192 KB	Output is correct
9	Correct	3 ms	14940 KB	Output is correct
10	Correct	3 ms	14936 KB	Output is correct
11	Correct	3 ms	14940 KB	Output is correct
12	Correct	3 ms	14940 KB	Output is correct
13	Correct	3 ms	14940 KB	Output is correct
14	Correct	3 ms	14940 KB	Output is correct
15	Correct	3 ms	14940 KB	Output is correct
16	Correct	3 ms	14940 KB	Output is correct
17	Correct	3 ms	14940 KB	Output is correct
18	Correct	3 ms	14940 KB	Output is correct
19	Correct	3 ms	14940 KB	Output is correct
20	Correct	4 ms	14940 KB	Output is correct
21	Correct	5 ms	14940 KB	Output is correct
22	Correct	3 ms	15028 KB	Output is correct
23	Correct	3 ms	14940 KB	Output is correct
24	Correct	3 ms	14988 KB	Output is correct
25	Correct	3 ms	14940 KB	Output is correct
26	Correct	3 ms	14936 KB	Output is correct
27	Correct	3 ms	14940 KB	Output is correct
28	Correct	3 ms	14940 KB	Output is correct
29	Correct	3 ms	14940 KB	Output is correct
30	Correct	3 ms	14940 KB	Output is correct
31	Correct	3 ms	14940 KB	Output is correct
32	Correct	4 ms	14968 KB	Output is correct
33	Correct	4 ms	14940 KB	Output is correct
34	Correct	3 ms	14940 KB	Output is correct
35	Correct	3 ms	14940 KB	Output is correct
36	Correct	4 ms	14940 KB	Output is correct
37	Correct	4 ms	14940 KB	Output is correct
38	Correct	3 ms	14940 KB	Output is correct
39	Correct	3 ms	14940 KB	Output is correct
40	Correct	4 ms	14940 KB	Output is correct
41	Correct	3 ms	14936 KB	Output is correct
42	Correct	3 ms	14936 KB	Output is correct
43	Correct	3 ms	14940 KB	Output is correct
44	Correct	3 ms	14940 KB	Output is correct
45	Correct	3 ms	14964 KB	Output is correct

Subtask #4
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	14940 KB	Output is correct
2	Correct	3 ms	14940 KB	Output is correct
3	Correct	3 ms	14940 KB	Output is correct
4	Correct	3 ms	14940 KB	Output is correct
5	Correct	3 ms	14940 KB	Output is correct
6	Correct	3 ms	14940 KB	Output is correct
7	Correct	3 ms	14964 KB	Output is correct
8	Correct	3 ms	15192 KB	Output is correct
9	Correct	3 ms	14940 KB	Output is correct
10	Correct	3 ms	14936 KB	Output is correct
11	Correct	3 ms	14940 KB	Output is correct
12	Correct	3 ms	14940 KB	Output is correct
13	Correct	3 ms	14940 KB	Output is correct
14	Correct	3 ms	14940 KB	Output is correct
15	Correct	3 ms	14940 KB	Output is correct
16	Correct	3 ms	14940 KB	Output is correct
17	Correct	3 ms	14940 KB	Output is correct
18	Correct	3 ms	14940 KB	Output is correct
19	Correct	3 ms	14940 KB	Output is correct
20	Correct	4 ms	14940 KB	Output is correct
21	Correct	5 ms	14940 KB	Output is correct
22	Correct	3 ms	15028 KB	Output is correct
23	Correct	3 ms	14940 KB	Output is correct
24	Correct	3 ms	14988 KB	Output is correct
25	Correct	3 ms	14940 KB	Output is correct
26	Correct	3 ms	14936 KB	Output is correct
27	Correct	3 ms	14940 KB	Output is correct
28	Correct	3 ms	14940 KB	Output is correct
29	Correct	3 ms	14940 KB	Output is correct
30	Correct	3 ms	14940 KB	Output is correct
31	Correct	3 ms	14940 KB	Output is correct
32	Correct	4 ms	14968 KB	Output is correct
33	Correct	4 ms	14940 KB	Output is correct
34	Correct	3 ms	14940 KB	Output is correct
35	Correct	3 ms	14940 KB	Output is correct
36	Correct	4 ms	14940 KB	Output is correct
37	Correct	4 ms	14940 KB	Output is correct
38	Correct	3 ms	14940 KB	Output is correct
39	Correct	3 ms	14940 KB	Output is correct
40	Correct	4 ms	14940 KB	Output is correct
41	Correct	3 ms	14936 KB	Output is correct
42	Correct	3 ms	14936 KB	Output is correct
43	Correct	3 ms	14940 KB	Output is correct
44	Correct	3 ms	14940 KB	Output is correct
45	Correct	3 ms	14964 KB	Output is correct
46	Correct	14 ms	20060 KB	Output is correct
47	Correct	21 ms	21852 KB	Output is correct
48	Correct	23 ms	21852 KB	Output is correct
49	Correct	18 ms	21592 KB	Output is correct
50	Correct	18 ms	21596 KB	Output is correct
51	Correct	23 ms	22124 KB	Output is correct
52	Correct	13 ms	17496 KB	Output is correct
53	Correct	9 ms	16476 KB	Output is correct
54	Correct	20 ms	22108 KB	Output is correct
55	Correct	25 ms	21844 KB	Output is correct
56	Correct	16 ms	21596 KB	Output is correct
57	Correct	16 ms	21712 KB	Output is correct
58	Correct	17 ms	21716 KB	Output is correct
59	Correct	16 ms	21660 KB	Output is correct
60	Correct	17 ms	21592 KB	Output is correct

Subtask #5
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	3 ms	14940 KB	Output is correct
2	Correct	3 ms	14940 KB	Output is correct
3	Correct	3 ms	14940 KB	Output is correct
4	Correct	3 ms	14940 KB	Output is correct
5	Correct	3 ms	14940 KB	Output is correct
6	Correct	3 ms	14940 KB	Output is correct
7	Correct	3 ms	14964 KB	Output is correct
8	Correct	3 ms	15192 KB	Output is correct
9	Correct	3 ms	14940 KB	Output is correct
10	Correct	3 ms	14936 KB	Output is correct
11	Correct	3 ms	14940 KB	Output is correct
12	Correct	3 ms	14940 KB	Output is correct
13	Correct	3 ms	14940 KB	Output is correct
14	Correct	3 ms	14940 KB	Output is correct
15	Correct	3 ms	14940 KB	Output is correct
16	Correct	3 ms	14940 KB	Output is correct
17	Correct	3 ms	14940 KB	Output is correct
18	Correct	3 ms	14940 KB	Output is correct
19	Correct	3 ms	14940 KB	Output is correct
20	Correct	4 ms	14940 KB	Output is correct
21	Correct	5 ms	14940 KB	Output is correct
22	Correct	3 ms	15028 KB	Output is correct
23	Correct	3 ms	14940 KB	Output is correct
24	Correct	3 ms	14988 KB	Output is correct
25	Correct	3 ms	14940 KB	Output is correct
26	Correct	3 ms	14936 KB	Output is correct
27	Correct	3 ms	14940 KB	Output is correct
28	Correct	3 ms	14940 KB	Output is correct
29	Correct	3 ms	14940 KB	Output is correct
30	Correct	3 ms	14940 KB	Output is correct
31	Correct	3 ms	14940 KB	Output is correct
32	Correct	4 ms	14968 KB	Output is correct
33	Correct	4 ms	14940 KB	Output is correct
34	Correct	3 ms	14940 KB	Output is correct
35	Correct	3 ms	14940 KB	Output is correct
36	Correct	4 ms	14940 KB	Output is correct
37	Correct	4 ms	14940 KB	Output is correct
38	Correct	3 ms	14940 KB	Output is correct
39	Correct	3 ms	14940 KB	Output is correct
40	Correct	4 ms	14940 KB	Output is correct
41	Correct	3 ms	14936 KB	Output is correct
42	Correct	3 ms	14936 KB	Output is correct
43	Correct	3 ms	14940 KB	Output is correct
44	Correct	3 ms	14940 KB	Output is correct
45	Correct	3 ms	14964 KB	Output is correct
46	Correct	14 ms	20060 KB	Output is correct
47	Correct	21 ms	21852 KB	Output is correct
48	Correct	23 ms	21852 KB	Output is correct
49	Correct	18 ms	21592 KB	Output is correct
50	Correct	18 ms	21596 KB	Output is correct
51	Correct	23 ms	22124 KB	Output is correct
52	Correct	13 ms	17496 KB	Output is correct
53	Correct	9 ms	16476 KB	Output is correct
54	Correct	20 ms	22108 KB	Output is correct
55	Correct	25 ms	21844 KB	Output is correct
56	Correct	16 ms	21596 KB	Output is correct
57	Correct	16 ms	21712 KB	Output is correct
58	Correct	17 ms	21716 KB	Output is correct
59	Correct	16 ms	21660 KB	Output is correct
60	Correct	17 ms	21592 KB	Output is correct
61	Correct	59 ms	35568 KB	Output is correct
62	Correct	74 ms	39612 KB	Output is correct
63	Correct	99 ms	44532 KB	Output is correct
64	Correct	94 ms	44748 KB	Output is correct
65	Correct	79 ms	43348 KB	Output is correct
66	Correct	107 ms	45224 KB	Output is correct
67	Correct	85 ms	39316 KB	Output is correct
68	Correct	47 ms	29276 KB	Output is correct
69	Correct	93 ms	45384 KB	Output is correct
70	Correct	91 ms	44296 KB	Output is correct
71	Correct	67 ms	43348 KB	Output is correct
72	Correct	71 ms	43460 KB	Output is correct
73	Correct	72 ms	43268 KB	Output is correct
74	Correct	78 ms	43436 KB	Output is correct
75	Correct	73 ms	43352 KB	Output is correct

답안 #899042

Compilation message

Subtask #1 13.0 / 13.0

Subtask #2 14.0 / 14.0

Subtask #3 10.0 / 10.0

Subtask #4 36.0 / 36.0

Subtask #5 27.0 / 27.0

Subtask #1
13.0 / 13.0

Subtask #2
14.0 / 14.0

Subtask #3
10.0 / 10.0

Subtask #4
36.0 / 36.0

Subtask #5
27.0 / 27.0