답안 #935513

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
935513	2024-02-29T08:28:50 Z	qwe1rt1yuiop1	Cat Exercise (JOI23_ho_t4)	C++14	41 / 100	97 ms	22032 KB

Main

#include <bits/stdc++.h>
#define int long long
using namespace std;
using pii = pair<int, int>;

int n;
vector<int> seg, v, pos;

void build(int x, int l, int r)
{
    if (l + 1 == r)
    {
        seg[x] = v[l];
        return;
    }
    int mid = (l + r) >> 1;
    build(x << 1, l, mid), build(x << 1 | 1, mid, r);
    seg[x] = max(seg[x << 1], seg[x << 1 | 1]);
}
int qry(int x, int l, int r, int ql, int qr)
{
    if (ql <= l && r <= qr)
        return seg[x];
    int mid = (l + r) >> 1;
    if (qr <= mid)
        return qry(x << 1, l, mid, ql, qr);
    if (ql >= mid)
        return qry(x << 1 | 1, mid, r, ql, qr);
    int retl = qry(x << 1, l, mid, ql, qr), retr = qry(x << 1 | 1, mid, r, ql, qr);
    return max(retl, retr);
}

int ans(int x, int l, int r)
{
    assert(qry(1, 0, n, l, r) == x);
    if (x == 0 || l + 1 == r)
        return 0;
    if (pos[x] == l)
    {
        int rx = qry(1, 0, n, pos[x] + 1, r);
        return ans(rx, pos[x] + 1, r) + pos[rx] - pos[x];
    }
    if (pos[x] + 1 == r)
    {
        int lx = qry(1, 0, n, l, pos[x]);
        return ans(lx, l, pos[x]) + pos[x] - pos[lx];
    }
    int lx = qry(1, 0, n, l, pos[x]), rx = qry(1, 0, n, pos[x] + 1, r);
    return max(ans(lx, l, pos[x]) + pos[x] - pos[lx], ans(rx, pos[x] + 1, r) + pos[rx] - pos[x]);
}
/*
4
3 4 1 2
1 2
2 3
3 4
*/

void solve()
{
    cin >> n;
    v.resize(n);
    for (int &i : v)
        cin >> i, --i;
    for (int i = 1, a, b; i < n; ++i)
        cin >> a >> b;
    pos.resize(n);
    for (int i = 0; i < n; ++i)
        pos[v[i]] = i;
    seg.assign(n * 4 + 10, 0);
    build(1, 0, n);
    cout << ans(n - 1, 0, n) << '\n';
}

/*
 */

signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);

    solve();

    return 0;
}

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct

Subtask #3
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	2 ms	860 KB	Output is correct
19	Correct	2 ms	860 KB	Output is correct
20	Correct	2 ms	856 KB	Output is correct
21	Correct	2 ms	604 KB	Output is correct
22	Correct	2 ms	604 KB	Output is correct
23	Correct	2 ms	604 KB	Output is correct
24	Correct	2 ms	604 KB	Output is correct

Subtask #4
0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	2 ms	860 KB	Output is correct
19	Correct	2 ms	860 KB	Output is correct
20	Correct	2 ms	856 KB	Output is correct
21	Correct	2 ms	604 KB	Output is correct
22	Correct	2 ms	604 KB	Output is correct
23	Correct	2 ms	604 KB	Output is correct
24	Correct	2 ms	604 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Incorrect	2 ms	604 KB	Output isn't correct
27	Halted	0 ms	0 KB	-

Subtask #5
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	2 ms	860 KB	Output is correct
19	Correct	2 ms	860 KB	Output is correct
20	Correct	2 ms	856 KB	Output is correct
21	Correct	2 ms	604 KB	Output is correct
22	Correct	2 ms	604 KB	Output is correct
23	Correct	2 ms	604 KB	Output is correct
24	Correct	2 ms	604 KB	Output is correct
25	Correct	97 ms	19028 KB	Output is correct
26	Correct	95 ms	21984 KB	Output is correct
27	Correct	97 ms	22032 KB	Output is correct
28	Correct	66 ms	13648 KB	Output is correct
29	Correct	67 ms	13392 KB	Output is correct
30	Correct	66 ms	13396 KB	Output is correct
31	Correct	67 ms	13648 KB	Output is correct

Subtask #6
0 / 23.0

#	결과	메모리	Grader output
1	Correct	348 KB	Output is correct
2	Incorrect	348 KB	Output isn't correct
3	Halted	0 KB	-

Subtask #7
0 / 26.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Correct	0 ms	348 KB	Output is correct
3	Correct	1 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	0 ms	348 KB	Output is correct
6	Correct	0 ms	348 KB	Output is correct
7	Correct	0 ms	348 KB	Output is correct
8	Correct	0 ms	348 KB	Output is correct
9	Correct	0 ms	348 KB	Output is correct
10	Correct	0 ms	348 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	0 ms	348 KB	Output is correct
13	Correct	0 ms	348 KB	Output is correct
14	Correct	1 ms	344 KB	Output is correct
15	Correct	0 ms	348 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	0 ms	348 KB	Output is correct
18	Correct	2 ms	860 KB	Output is correct
19	Correct	2 ms	860 KB	Output is correct
20	Correct	2 ms	856 KB	Output is correct
21	Correct	2 ms	604 KB	Output is correct
22	Correct	2 ms	604 KB	Output is correct
23	Correct	2 ms	604 KB	Output is correct
24	Correct	2 ms	604 KB	Output is correct
25	Correct	0 ms	348 KB	Output is correct
26	Incorrect	2 ms	604 KB	Output isn't correct
27	Halted	0 ms	0 KB	-

답안 #935513

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 7.0 / 7.0

Subtask #3 7.0 / 7.0

Subtask #4 0 / 10.0

Subtask #5 20.0 / 20.0

Subtask #6 0 / 23.0

Subtask #7 0 / 26.0

Subtask #1
7.0 / 7.0

Subtask #2
7.0 / 7.0

Subtask #3
7.0 / 7.0

Subtask #4
0 / 10.0

Subtask #5
20.0 / 20.0

Subtask #6
0 / 23.0

Subtask #7
0 / 26.0