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Submission #490012

# Submission time Handle Problem Language Result Execution time Memory
490012 2021-11-25T09:53:37 Z hoanghq2004 Bigger segments (IZhO19_segments) C++14
100 / 100
 111 ms 38468 KB 
#include <bits/stdc++.h>
#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")

using namespace std;

const int Nmax = 5e5 + 10;

int n;
long long s[Nmax];
vector <int> cands[Nmax];
int f[Nmax];
pair <int, int> best;

int main() {
    ios :: sync_with_stdio(0); cin.tie(0);
    cin >> n;
    for (int i = 1; i <= n; ++i) {
        cin >> s[i];
        s[i] += s[i - 1];
    }
    memset(f, -1, sizeof(f));
    f[0] = 0;
    cands[1].push_back(0);
    for (int i = 1; i <= n; ++i) {
        for (auto j: cands[i]) best = max(best, {f[j] + 1, j});
        f[i] = best.first;
        int t = lower_bound(s + 1, s + n + 1, s[i] * 2 - s[best.second]) - s;
        cands[t].push_back(i);
    }
    cout << f[n];
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 13928 KB Output is correct
2 Correct 8 ms 14000 KB Output is correct
3 Correct 7 ms 13900 KB Output is correct
4 Correct 7 ms 13900 KB Output is correct
5 Correct 7 ms 13900 KB Output is correct
6 Correct 7 ms 13900 KB Output is correct
7 Correct 7 ms 13900 KB Output is correct
8 Correct 7 ms 14048 KB Output is correct
9 Correct 8 ms 13900 KB Output is correct
10 Correct 7 ms 13940 KB Output is correct
11 Correct 7 ms 13900 KB Output is correct
12 Correct 7 ms 13932 KB Output is correct
13 Correct 7 ms 13900 KB Output is correct
14 Correct 7 ms 13900 KB Output is correct
15 Correct 7 ms 13900 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 13928 KB Output is correct
2 Correct 8 ms 14000 KB Output is correct
3 Correct 7 ms 13900 KB Output is correct
4 Correct 7 ms 13900 KB Output is correct
5 Correct 7 ms 13900 KB Output is correct
6 Correct 7 ms 13900 KB Output is correct
7 Correct 7 ms 13900 KB Output is correct
8 Correct 7 ms 14048 KB Output is correct
9 Correct 8 ms 13900 KB Output is correct
10 Correct 7 ms 13940 KB Output is correct
11 Correct 7 ms 13900 KB Output is correct
12 Correct 7 ms 13932 KB Output is correct
13 Correct 7 ms 13900 KB Output is correct
14 Correct 7 ms 13900 KB Output is correct
15 Correct 7 ms 13900 KB Output is correct
16 Correct 7 ms 14028 KB Output is correct
17 Correct 8 ms 14028 KB Output is correct
18 Correct 8 ms 14044 KB Output is correct
19 Correct 7 ms 13976 KB Output is correct
20 Correct 8 ms 14036 KB Output is correct
21 Correct 7 ms 14028 KB Output is correct
22 Correct 9 ms 14028 KB Output is correct
23 Correct 8 ms 14028 KB Output is correct
24 Correct 7 ms 14036 KB Output is correct
25 Correct 7 ms 14028 KB Output is correct
26 Correct 7 ms 14040 KB Output is correct
27 Correct 7 ms 14028 KB Output is correct
28 Correct 8 ms 14028 KB Output is correct
29 Correct 7 ms 14028 KB Output is correct
30 Correct 7 ms 14004 KB Output is correct

Subtask #3
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 13928 KB Output is correct
2 Correct 8 ms 14000 KB Output is correct
3 Correct 7 ms 13900 KB Output is correct
4 Correct 7 ms 13900 KB Output is correct
5 Correct 7 ms 13900 KB Output is correct
6 Correct 7 ms 13900 KB Output is correct
7 Correct 7 ms 13900 KB Output is correct
8 Correct 7 ms 14048 KB Output is correct
9 Correct 8 ms 13900 KB Output is correct
10 Correct 7 ms 13940 KB Output is correct
11 Correct 7 ms 13900 KB Output is correct
12 Correct 7 ms 13932 KB Output is correct
13 Correct 7 ms 13900 KB Output is correct
14 Correct 7 ms 13900 KB Output is correct
15 Correct 7 ms 13900 KB Output is correct
16 Correct 7 ms 14028 KB Output is correct
17 Correct 8 ms 14028 KB Output is correct
18 Correct 8 ms 14044 KB Output is correct
19 Correct 7 ms 13976 KB Output is correct
20 Correct 8 ms 14036 KB Output is correct
21 Correct 7 ms 14028 KB Output is correct
22 Correct 9 ms 14028 KB Output is correct
23 Correct 8 ms 14028 KB Output is correct
24 Correct 7 ms 14036 KB Output is correct
25 Correct 7 ms 14028 KB Output is correct
26 Correct 7 ms 14040 KB Output is correct
27 Correct 7 ms 14028 KB Output is correct
28 Correct 8 ms 14028 KB Output is correct
29 Correct 7 ms 14028 KB Output is correct
30 Correct 7 ms 14004 KB Output is correct
31 Correct 7 ms 14028 KB Output is correct
32 Correct 7 ms 14032 KB Output is correct
33 Correct 8 ms 14132 KB Output is correct
34 Correct 8 ms 14132 KB Output is correct
35 Correct 8 ms 14136 KB Output is correct
36 Correct 9 ms 14032 KB Output is correct
37 Correct 8 ms 14032 KB Output is correct
38 Correct 9 ms 14032 KB Output is correct
39 Correct 7 ms 14036 KB Output is correct
40 Correct 9 ms 14180 KB Output is correct
41 Correct 8 ms 14032 KB Output is correct
42 Correct 7 ms 14032 KB Output is correct
43 Correct 8 ms 14032 KB Output is correct
44 Correct 8 ms 14048 KB Output is correct
45 Correct 8 ms 14140 KB Output is correct

Subtask #4
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 13928 KB Output is correct
2 Correct 8 ms 14000 KB Output is correct
3 Correct 7 ms 13900 KB Output is correct
4 Correct 7 ms 13900 KB Output is correct
5 Correct 7 ms 13900 KB Output is correct
6 Correct 7 ms 13900 KB Output is correct
7 Correct 7 ms 13900 KB Output is correct
8 Correct 7 ms 14048 KB Output is correct
9 Correct 8 ms 13900 KB Output is correct
10 Correct 7 ms 13940 KB Output is correct
11 Correct 7 ms 13900 KB Output is correct
12 Correct 7 ms 13932 KB Output is correct
13 Correct 7 ms 13900 KB Output is correct
14 Correct 7 ms 13900 KB Output is correct
15 Correct 7 ms 13900 KB Output is correct
16 Correct 7 ms 14028 KB Output is correct
17 Correct 8 ms 14028 KB Output is correct
18 Correct 8 ms 14044 KB Output is correct
19 Correct 7 ms 13976 KB Output is correct
20 Correct 8 ms 14036 KB Output is correct
21 Correct 7 ms 14028 KB Output is correct
22 Correct 9 ms 14028 KB Output is correct
23 Correct 8 ms 14028 KB Output is correct
24 Correct 7 ms 14036 KB Output is correct
25 Correct 7 ms 14028 KB Output is correct
26 Correct 7 ms 14040 KB Output is correct
27 Correct 7 ms 14028 KB Output is correct
28 Correct 8 ms 14028 KB Output is correct
29 Correct 7 ms 14028 KB Output is correct
30 Correct 7 ms 14004 KB Output is correct
31 Correct 7 ms 14028 KB Output is correct
32 Correct 7 ms 14032 KB Output is correct
33 Correct 8 ms 14132 KB Output is correct
34 Correct 8 ms 14132 KB Output is correct
35 Correct 8 ms 14136 KB Output is correct
36 Correct 9 ms 14032 KB Output is correct
37 Correct 8 ms 14032 KB Output is correct
38 Correct 9 ms 14032 KB Output is correct
39 Correct 7 ms 14036 KB Output is correct
40 Correct 9 ms 14180 KB Output is correct
41 Correct 8 ms 14032 KB Output is correct
42 Correct 7 ms 14032 KB Output is correct
43 Correct 8 ms 14032 KB Output is correct
44 Correct 8 ms 14048 KB Output is correct
45 Correct 8 ms 14140 KB Output is correct
46 Correct 16 ms 15748 KB Output is correct
47 Correct 22 ms 16728 KB Output is correct
48 Correct 26 ms 17360 KB Output is correct
49 Correct 28 ms 18616 KB Output is correct
50 Correct 28 ms 18924 KB Output is correct
51 Correct 27 ms 17580 KB Output is correct
52 Correct 18 ms 15848 KB Output is correct
53 Correct 17 ms 15032 KB Output is correct
54 Correct 23 ms 16676 KB Output is correct
55 Correct 28 ms 18352 KB Output is correct
56 Correct 23 ms 18320 KB Output is correct
57 Correct 20 ms 17104 KB Output is correct
58 Correct 21 ms 17616 KB Output is correct
59 Correct 28 ms 18396 KB Output is correct
60 Correct 24 ms 18424 KB Output is correct

Subtask #5
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 13928 KB Output is correct
2 Correct 8 ms 14000 KB Output is correct
3 Correct 7 ms 13900 KB Output is correct
4 Correct 7 ms 13900 KB Output is correct
5 Correct 7 ms 13900 KB Output is correct
6 Correct 7 ms 13900 KB Output is correct
7 Correct 7 ms 13900 KB Output is correct
8 Correct 7 ms 14048 KB Output is correct
9 Correct 8 ms 13900 KB Output is correct
10 Correct 7 ms 13940 KB Output is correct
11 Correct 7 ms 13900 KB Output is correct
12 Correct 7 ms 13932 KB Output is correct
13 Correct 7 ms 13900 KB Output is correct
14 Correct 7 ms 13900 KB Output is correct
15 Correct 7 ms 13900 KB Output is correct
16 Correct 7 ms 14028 KB Output is correct
17 Correct 8 ms 14028 KB Output is correct
18 Correct 8 ms 14044 KB Output is correct
19 Correct 7 ms 13976 KB Output is correct
20 Correct 8 ms 14036 KB Output is correct
21 Correct 7 ms 14028 KB Output is correct
22 Correct 9 ms 14028 KB Output is correct
23 Correct 8 ms 14028 KB Output is correct
24 Correct 7 ms 14036 KB Output is correct
25 Correct 7 ms 14028 KB Output is correct
26 Correct 7 ms 14040 KB Output is correct
27 Correct 7 ms 14028 KB Output is correct
28 Correct 8 ms 14028 KB Output is correct
29 Correct 7 ms 14028 KB Output is correct
30 Correct 7 ms 14004 KB Output is correct
31 Correct 7 ms 14028 KB Output is correct
32 Correct 7 ms 14032 KB Output is correct
33 Correct 8 ms 14132 KB Output is correct
34 Correct 8 ms 14132 KB Output is correct
35 Correct 8 ms 14136 KB Output is correct
36 Correct 9 ms 14032 KB Output is correct
37 Correct 8 ms 14032 KB Output is correct
38 Correct 9 ms 14032 KB Output is correct
39 Correct 7 ms 14036 KB Output is correct
40 Correct 9 ms 14180 KB Output is correct
41 Correct 8 ms 14032 KB Output is correct
42 Correct 7 ms 14032 KB Output is correct
43 Correct 8 ms 14032 KB Output is correct
44 Correct 8 ms 14048 KB Output is correct
45 Correct 8 ms 14140 KB Output is correct
46 Correct 16 ms 15748 KB Output is correct
47 Correct 22 ms 16728 KB Output is correct
48 Correct 26 ms 17360 KB Output is correct
49 Correct 28 ms 18616 KB Output is correct
50 Correct 28 ms 18924 KB Output is correct
51 Correct 27 ms 17580 KB Output is correct
52 Correct 18 ms 15848 KB Output is correct
53 Correct 17 ms 15032 KB Output is correct
54 Correct 23 ms 16676 KB Output is correct
55 Correct 28 ms 18352 KB Output is correct
56 Correct 23 ms 18320 KB Output is correct
57 Correct 20 ms 17104 KB Output is correct
58 Correct 21 ms 17616 KB Output is correct
59 Correct 28 ms 18396 KB Output is correct
60 Correct 24 ms 18424 KB Output is correct
61 Correct 55 ms 21984 KB Output is correct
62 Correct 59 ms 23704 KB Output is correct
63 Correct 80 ms 27768 KB Output is correct
64 Correct 109 ms 33464 KB Output is correct
65 Correct 106 ms 38468 KB Output is correct
66 Correct 111 ms 32232 KB Output is correct
67 Correct 88 ms 28568 KB Output is correct
68 Correct 47 ms 21236 KB Output is correct
69 Correct 93 ms 27496 KB Output is correct
70 Correct 103 ms 36292 KB Output is correct
71 Correct 81 ms 35448 KB Output is correct
72 Correct 71 ms 30400 KB Output is correct
73 Correct 82 ms 34380 KB Output is correct
74 Correct 88 ms 36820 KB Output is correct
75 Correct 95 ms 36828 KB Output is correct