답안 #851521

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
851521	2023-09-20T03:36:25 Z	NeroZein	Bigger segments (IZhO19_segments)	C++17	100 / 100	153 ms	21180 KB

segments

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

const int N = 5e5 + 5;

int a[N];
int dp[N]; 
long long pref[N]; 

long long seg[N * 2];

void upd(int nd, int l, int r, int p, long long v) {
  if (l == r) {
    seg[nd] = v;
    return;
  }
  int mid = (l + r) >> 1;
  int rs = nd + ((mid - l + 1) << 1);
  if (p <= mid) {
    upd(nd + 1, l, mid, p, v);
  } else {
    upd(rs, mid + 1, r, p, v); 
  }
  seg[nd] = min(seg[nd + 1], seg[rs]); 
}

int get(int nd, int l, int r, int s, int e, long long v) {
  if (l > e || r < s || seg[nd] > v) {
    return -1; 
  }
  if (l == r) {
    return l;
  }
  int mid = (l + r) >> 1;
  int rs = nd + ((mid - l + 1) << 1);
  int ret = get(rs, mid + 1, r, s, e, v);
  if (ret == -1) {
    ret = get(nd + 1, l, mid, s, e, v);
  }
  return ret;
}

int main(){
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  fill(seg, seg + N * 2, 1e18);
  upd(0, 0, N, 0, 0); 
  int n;
  cin >> n;
  for (int i = 1; i <= n; ++i) {
    cin >> a[i];
    pref[i] = pref[i - 1] + a[i]; 
  }
  dp[1] = 1;
  upd(0, 0, N, 1, a[1] * 2); 
  for (int i = 2; i <= n; ++i) {
    int j = get(0, 0, N, 0, i - 1, pref[i]); 
    dp[i] = dp[j] + 1;
    long long sum = pref[i] - pref[j];
    upd(0, 0, N, i, sum + pref[i]); 
  }
  cout << dp[n] << '\n';
  return 0;
}

Subtask #1
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	12888 KB	Output is correct
2	Correct	2 ms	12892 KB	Output is correct
3	Correct	2 ms	12892 KB	Output is correct
4	Correct	2 ms	12888 KB	Output is correct
5	Correct	3 ms	12888 KB	Output is correct
6	Correct	2 ms	12892 KB	Output is correct
7	Correct	2 ms	12892 KB	Output is correct
8	Correct	2 ms	12888 KB	Output is correct
9	Correct	2 ms	12888 KB	Output is correct
10	Correct	2 ms	12892 KB	Output is correct
11	Correct	2 ms	12912 KB	Output is correct
12	Correct	2 ms	12892 KB	Output is correct
13	Correct	2 ms	12892 KB	Output is correct
14	Correct	2 ms	12892 KB	Output is correct
15	Correct	2 ms	12892 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	12888 KB	Output is correct
2	Correct	2 ms	12892 KB	Output is correct
3	Correct	2 ms	12892 KB	Output is correct
4	Correct	2 ms	12888 KB	Output is correct
5	Correct	3 ms	12888 KB	Output is correct
6	Correct	2 ms	12892 KB	Output is correct
7	Correct	2 ms	12892 KB	Output is correct
8	Correct	2 ms	12888 KB	Output is correct
9	Correct	2 ms	12888 KB	Output is correct
10	Correct	2 ms	12892 KB	Output is correct
11	Correct	2 ms	12912 KB	Output is correct
12	Correct	2 ms	12892 KB	Output is correct
13	Correct	2 ms	12892 KB	Output is correct
14	Correct	2 ms	12892 KB	Output is correct
15	Correct	2 ms	12892 KB	Output is correct
16	Correct	3 ms	12892 KB	Output is correct
17	Correct	2 ms	12892 KB	Output is correct
18	Correct	2 ms	12892 KB	Output is correct
19	Correct	2 ms	12892 KB	Output is correct
20	Correct	2 ms	12892 KB	Output is correct
21	Correct	2 ms	12892 KB	Output is correct
22	Correct	2 ms	12892 KB	Output is correct
23	Correct	2 ms	12928 KB	Output is correct
24	Correct	2 ms	12892 KB	Output is correct
25	Correct	2 ms	12892 KB	Output is correct
26	Correct	2 ms	12888 KB	Output is correct
27	Correct	2 ms	12892 KB	Output is correct
28	Correct	2 ms	12892 KB	Output is correct
29	Correct	3 ms	12892 KB	Output is correct
30	Correct	2 ms	12892 KB	Output is correct

Subtask #3
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	12888 KB	Output is correct
2	Correct	2 ms	12892 KB	Output is correct
3	Correct	2 ms	12892 KB	Output is correct
4	Correct	2 ms	12888 KB	Output is correct
5	Correct	3 ms	12888 KB	Output is correct
6	Correct	2 ms	12892 KB	Output is correct
7	Correct	2 ms	12892 KB	Output is correct
8	Correct	2 ms	12888 KB	Output is correct
9	Correct	2 ms	12888 KB	Output is correct
10	Correct	2 ms	12892 KB	Output is correct
11	Correct	2 ms	12912 KB	Output is correct
12	Correct	2 ms	12892 KB	Output is correct
13	Correct	2 ms	12892 KB	Output is correct
14	Correct	2 ms	12892 KB	Output is correct
15	Correct	2 ms	12892 KB	Output is correct
16	Correct	3 ms	12892 KB	Output is correct
17	Correct	2 ms	12892 KB	Output is correct
18	Correct	2 ms	12892 KB	Output is correct
19	Correct	2 ms	12892 KB	Output is correct
20	Correct	2 ms	12892 KB	Output is correct
21	Correct	2 ms	12892 KB	Output is correct
22	Correct	2 ms	12892 KB	Output is correct
23	Correct	2 ms	12928 KB	Output is correct
24	Correct	2 ms	12892 KB	Output is correct
25	Correct	2 ms	12892 KB	Output is correct
26	Correct	2 ms	12888 KB	Output is correct
27	Correct	2 ms	12892 KB	Output is correct
28	Correct	2 ms	12892 KB	Output is correct
29	Correct	3 ms	12892 KB	Output is correct
30	Correct	2 ms	12892 KB	Output is correct
31	Correct	3 ms	12892 KB	Output is correct
32	Correct	3 ms	12892 KB	Output is correct
33	Correct	3 ms	12892 KB	Output is correct
34	Correct	3 ms	12892 KB	Output is correct
35	Correct	3 ms	12892 KB	Output is correct
36	Correct	3 ms	12892 KB	Output is correct
37	Correct	2 ms	12892 KB	Output is correct
38	Correct	3 ms	12892 KB	Output is correct
39	Correct	3 ms	12888 KB	Output is correct
40	Correct	3 ms	12908 KB	Output is correct
41	Correct	3 ms	12892 KB	Output is correct
42	Correct	3 ms	12892 KB	Output is correct
43	Correct	2 ms	12892 KB	Output is correct
44	Correct	3 ms	12892 KB	Output is correct
45	Correct	3 ms	12892 KB	Output is correct

Subtask #4
36.0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	12888 KB	Output is correct
2	Correct	2 ms	12892 KB	Output is correct
3	Correct	2 ms	12892 KB	Output is correct
4	Correct	2 ms	12888 KB	Output is correct
5	Correct	3 ms	12888 KB	Output is correct
6	Correct	2 ms	12892 KB	Output is correct
7	Correct	2 ms	12892 KB	Output is correct
8	Correct	2 ms	12888 KB	Output is correct
9	Correct	2 ms	12888 KB	Output is correct
10	Correct	2 ms	12892 KB	Output is correct
11	Correct	2 ms	12912 KB	Output is correct
12	Correct	2 ms	12892 KB	Output is correct
13	Correct	2 ms	12892 KB	Output is correct
14	Correct	2 ms	12892 KB	Output is correct
15	Correct	2 ms	12892 KB	Output is correct
16	Correct	3 ms	12892 KB	Output is correct
17	Correct	2 ms	12892 KB	Output is correct
18	Correct	2 ms	12892 KB	Output is correct
19	Correct	2 ms	12892 KB	Output is correct
20	Correct	2 ms	12892 KB	Output is correct
21	Correct	2 ms	12892 KB	Output is correct
22	Correct	2 ms	12892 KB	Output is correct
23	Correct	2 ms	12928 KB	Output is correct
24	Correct	2 ms	12892 KB	Output is correct
25	Correct	2 ms	12892 KB	Output is correct
26	Correct	2 ms	12888 KB	Output is correct
27	Correct	2 ms	12892 KB	Output is correct
28	Correct	2 ms	12892 KB	Output is correct
29	Correct	3 ms	12892 KB	Output is correct
30	Correct	2 ms	12892 KB	Output is correct
31	Correct	3 ms	12892 KB	Output is correct
32	Correct	3 ms	12892 KB	Output is correct
33	Correct	3 ms	12892 KB	Output is correct
34	Correct	3 ms	12892 KB	Output is correct
35	Correct	3 ms	12892 KB	Output is correct
36	Correct	3 ms	12892 KB	Output is correct
37	Correct	2 ms	12892 KB	Output is correct
38	Correct	3 ms	12892 KB	Output is correct
39	Correct	3 ms	12888 KB	Output is correct
40	Correct	3 ms	12908 KB	Output is correct
41	Correct	3 ms	12892 KB	Output is correct
42	Correct	3 ms	12892 KB	Output is correct
43	Correct	2 ms	12892 KB	Output is correct
44	Correct	3 ms	12892 KB	Output is correct
45	Correct	3 ms	12892 KB	Output is correct
46	Correct	23 ms	14936 KB	Output is correct
47	Correct	27 ms	15452 KB	Output is correct
48	Correct	26 ms	15704 KB	Output is correct
49	Correct	28 ms	15708 KB	Output is correct
50	Correct	30 ms	15964 KB	Output is correct
51	Correct	29 ms	15964 KB	Output is correct
52	Correct	15 ms	13400 KB	Output is correct
53	Correct	10 ms	13148 KB	Output is correct
54	Correct	27 ms	15196 KB	Output is correct
55	Correct	32 ms	16004 KB	Output is correct
56	Correct	30 ms	15456 KB	Output is correct
57	Correct	27 ms	15196 KB	Output is correct
58	Correct	26 ms	15448 KB	Output is correct
59	Correct	27 ms	15452 KB	Output is correct
60	Correct	29 ms	15508 KB	Output is correct

Subtask #5
27.0 / 27.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	12888 KB	Output is correct
2	Correct	2 ms	12892 KB	Output is correct
3	Correct	2 ms	12892 KB	Output is correct
4	Correct	2 ms	12888 KB	Output is correct
5	Correct	3 ms	12888 KB	Output is correct
6	Correct	2 ms	12892 KB	Output is correct
7	Correct	2 ms	12892 KB	Output is correct
8	Correct	2 ms	12888 KB	Output is correct
9	Correct	2 ms	12888 KB	Output is correct
10	Correct	2 ms	12892 KB	Output is correct
11	Correct	2 ms	12912 KB	Output is correct
12	Correct	2 ms	12892 KB	Output is correct
13	Correct	2 ms	12892 KB	Output is correct
14	Correct	2 ms	12892 KB	Output is correct
15	Correct	2 ms	12892 KB	Output is correct
16	Correct	3 ms	12892 KB	Output is correct
17	Correct	2 ms	12892 KB	Output is correct
18	Correct	2 ms	12892 KB	Output is correct
19	Correct	2 ms	12892 KB	Output is correct
20	Correct	2 ms	12892 KB	Output is correct
21	Correct	2 ms	12892 KB	Output is correct
22	Correct	2 ms	12892 KB	Output is correct
23	Correct	2 ms	12928 KB	Output is correct
24	Correct	2 ms	12892 KB	Output is correct
25	Correct	2 ms	12892 KB	Output is correct
26	Correct	2 ms	12888 KB	Output is correct
27	Correct	2 ms	12892 KB	Output is correct
28	Correct	2 ms	12892 KB	Output is correct
29	Correct	3 ms	12892 KB	Output is correct
30	Correct	2 ms	12892 KB	Output is correct
31	Correct	3 ms	12892 KB	Output is correct
32	Correct	3 ms	12892 KB	Output is correct
33	Correct	3 ms	12892 KB	Output is correct
34	Correct	3 ms	12892 KB	Output is correct
35	Correct	3 ms	12892 KB	Output is correct
36	Correct	3 ms	12892 KB	Output is correct
37	Correct	2 ms	12892 KB	Output is correct
38	Correct	3 ms	12892 KB	Output is correct
39	Correct	3 ms	12888 KB	Output is correct
40	Correct	3 ms	12908 KB	Output is correct
41	Correct	3 ms	12892 KB	Output is correct
42	Correct	3 ms	12892 KB	Output is correct
43	Correct	2 ms	12892 KB	Output is correct
44	Correct	3 ms	12892 KB	Output is correct
45	Correct	3 ms	12892 KB	Output is correct
46	Correct	23 ms	14936 KB	Output is correct
47	Correct	27 ms	15452 KB	Output is correct
48	Correct	26 ms	15704 KB	Output is correct
49	Correct	28 ms	15708 KB	Output is correct
50	Correct	30 ms	15964 KB	Output is correct
51	Correct	29 ms	15964 KB	Output is correct
52	Correct	15 ms	13400 KB	Output is correct
53	Correct	10 ms	13148 KB	Output is correct
54	Correct	27 ms	15196 KB	Output is correct
55	Correct	32 ms	16004 KB	Output is correct
56	Correct	30 ms	15456 KB	Output is correct
57	Correct	27 ms	15196 KB	Output is correct
58	Correct	26 ms	15448 KB	Output is correct
59	Correct	27 ms	15452 KB	Output is correct
60	Correct	29 ms	15508 KB	Output is correct
61	Correct	112 ms	18004 KB	Output is correct
62	Correct	119 ms	17816 KB	Output is correct
63	Correct	118 ms	18268 KB	Output is correct
64	Correct	137 ms	20632 KB	Output is correct
65	Correct	153 ms	21180 KB	Output is correct
66	Correct	146 ms	20920 KB	Output is correct
67	Correct	114 ms	19456 KB	Output is correct
68	Correct	61 ms	16916 KB	Output is correct
69	Correct	126 ms	16888 KB	Output is correct
70	Correct	140 ms	20820 KB	Output is correct
71	Correct	125 ms	18040 KB	Output is correct
72	Correct	117 ms	18256 KB	Output is correct
73	Correct	129 ms	19024 KB	Output is correct
74	Correct	130 ms	19632 KB	Output is correct
75	Correct	132 ms	19440 KB	Output is correct

답안 #851521

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