Submission #491776

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
491776	2021-12-04T10:34:03 Z	VodkaInTheJar	Money (IZhO17_money)	C++14	100 / 100	1040 ms	69772 KB

money

#include <bits/stdc++.h>
#define endl '\n'

using namespace std;

const int maxn = 1e6 + 3;

int n;
int a[maxn];
void read()
{
    cin >> n;
    for (int i = 1; i <= n; i++)
        cin >> a[i];
}

int dp[maxn];
int r[maxn];
int up[maxn];
void solve()
{
    r[n] = n;
    for (int i = n-1; i >= 1; i--)
    {
        if (a[i] <= a[i+1])
            r[i] = r[i+1];

        else
            r[i] = i;
    }

    set <int> s;
    for (int i = 1; i <= n; i++)
    {
        auto it = s.upper_bound(a[i]);
        if (it == s.end())
            up[i] = INT_MAX;

        else
            up[i] = *it;

        s.insert(a[i]);
    }

    dp[n+1] = 0;
    for (int i = n; i >= 1; i--)
    {
        int low = i, high = r[i];
        while (low < high)
        {
            int mid = (low + high + 1) / 2;
            if (a[mid] > up[i])
                high = mid-1;

            else
                low = mid;
        }

        dp[i] = dp[low + 1] + 1;
    }

    cout << dp[1] << endl;
}

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

    read();
    solve();
}


/*
6
3 6 4 5 1 2
*/

Subtask #1
9.0 / 9.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	0 ms	332 KB	Output is correct
4	Correct	0 ms	332 KB	Output is correct
5	Correct	0 ms	332 KB	Output is correct
6	Correct	0 ms	332 KB	Output is correct
7	Correct	0 ms	332 KB	Output is correct
8	Correct	0 ms	332 KB	Output is correct
9	Correct	0 ms	332 KB	Output is correct
10	Correct	0 ms	332 KB	Output is correct
11	Correct	0 ms	332 KB	Output is correct
12	Correct	0 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	0 ms	332 KB	Output is correct
15	Correct	0 ms	332 KB	Output is correct
16	Correct	0 ms	332 KB	Output is correct

Subtask #2
16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	0 ms	332 KB	Output is correct
4	Correct	0 ms	332 KB	Output is correct
5	Correct	0 ms	332 KB	Output is correct
6	Correct	0 ms	332 KB	Output is correct
7	Correct	0 ms	332 KB	Output is correct
8	Correct	0 ms	332 KB	Output is correct
9	Correct	0 ms	332 KB	Output is correct
10	Correct	0 ms	332 KB	Output is correct
11	Correct	0 ms	332 KB	Output is correct
12	Correct	0 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	0 ms	332 KB	Output is correct
15	Correct	0 ms	332 KB	Output is correct
16	Correct	0 ms	332 KB	Output is correct
17	Correct	0 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	0 ms	332 KB	Output is correct
20	Correct	0 ms	332 KB	Output is correct
21	Correct	0 ms	332 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	0 ms	332 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	0 ms	332 KB	Output is correct
26	Correct	0 ms	332 KB	Output is correct

Subtask #3
20.0 / 20.0

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

Subtask #4
55.0 / 55.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	0 ms	332 KB	Output is correct
3	Correct	0 ms	332 KB	Output is correct
4	Correct	0 ms	332 KB	Output is correct
5	Correct	0 ms	332 KB	Output is correct
6	Correct	0 ms	332 KB	Output is correct
7	Correct	0 ms	332 KB	Output is correct
8	Correct	0 ms	332 KB	Output is correct
9	Correct	0 ms	332 KB	Output is correct
10	Correct	0 ms	332 KB	Output is correct
11	Correct	0 ms	332 KB	Output is correct
12	Correct	0 ms	332 KB	Output is correct
13	Correct	1 ms	332 KB	Output is correct
14	Correct	0 ms	332 KB	Output is correct
15	Correct	0 ms	332 KB	Output is correct
16	Correct	0 ms	332 KB	Output is correct
17	Correct	0 ms	332 KB	Output is correct
18	Correct	1 ms	332 KB	Output is correct
19	Correct	0 ms	332 KB	Output is correct
20	Correct	0 ms	332 KB	Output is correct
21	Correct	0 ms	332 KB	Output is correct
22	Correct	1 ms	332 KB	Output is correct
23	Correct	0 ms	332 KB	Output is correct
24	Correct	1 ms	332 KB	Output is correct
25	Correct	0 ms	332 KB	Output is correct
26	Correct	0 ms	332 KB	Output is correct
27	Correct	0 ms	332 KB	Output is correct
28	Correct	0 ms	332 KB	Output is correct
29	Correct	0 ms	332 KB	Output is correct
30	Correct	0 ms	332 KB	Output is correct
31	Correct	0 ms	332 KB	Output is correct
32	Correct	0 ms	332 KB	Output is correct
33	Correct	0 ms	332 KB	Output is correct
34	Correct	1 ms	332 KB	Output is correct
35	Correct	0 ms	332 KB	Output is correct
36	Correct	0 ms	332 KB	Output is correct
37	Correct	0 ms	332 KB	Output is correct
38	Correct	1 ms	332 KB	Output is correct
39	Correct	52 ms	7744 KB	Output is correct
40	Correct	87 ms	12644 KB	Output is correct
41	Correct	43 ms	6324 KB	Output is correct
42	Correct	43 ms	5592 KB	Output is correct
43	Correct	29 ms	4036 KB	Output is correct
44	Correct	108 ms	15896 KB	Output is correct
45	Correct	108 ms	15948 KB	Output is correct
46	Correct	109 ms	15896 KB	Output is correct
47	Correct	90 ms	15900 KB	Output is correct
48	Correct	97 ms	15888 KB	Output is correct
49	Correct	405 ms	34388 KB	Output is correct
50	Correct	438 ms	34400 KB	Output is correct
51	Correct	410 ms	34456 KB	Output is correct
52	Correct	400 ms	34336 KB	Output is correct
53	Correct	436 ms	34448 KB	Output is correct
54	Correct	391 ms	34372 KB	Output is correct
55	Correct	942 ms	62912 KB	Output is correct
56	Correct	984 ms	69640 KB	Output is correct
57	Correct	949 ms	69608 KB	Output is correct
58	Correct	972 ms	69648 KB	Output is correct
59	Correct	1040 ms	69736 KB	Output is correct
60	Correct	974 ms	69720 KB	Output is correct
61	Correct	931 ms	69772 KB	Output is correct
62	Correct	928 ms	69572 KB	Output is correct

Submission #491776

Compilation message

Subtask #1 9.0 / 9.0

Subtask #2 16.0 / 16.0

Subtask #3 20.0 / 20.0

Subtask #4 55.0 / 55.0

Subtask #1
9.0 / 9.0

Subtask #2
16.0 / 16.0

Subtask #3
20.0 / 20.0

Subtask #4
55.0 / 55.0