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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#180448#7108. Couleurwky606TL 2ms9712kbC++204.0kb2023-09-15 20:50:512023-09-15 20:50:52

Judging History

你现在查看的是最新测评结果

  • [2023-09-15 20:50:52]
  • 评测
  • 测评结果:TL
  • 用时:2ms
  • 内存:9712kb
  • [2023-09-15 20:50:51]
  • 提交

answer

#include <bits/stdc++.h>
#define int long long
#define ull unsigned long long
#define INF 0x3f3f3f3f3f3f3f3f
#define lowbit(x) (x & -x)
#define mem(a, b) memset(a, b, sizeof(a))
using namespace std;

#define N 200005
#define lc(x) tr[x].l
#define rc(x) tr[x].r

struct node
{
    int l, r, s; // s:节点值域中有多少个数
} tr[N * 20];
int root[N], idx;
int a[N], p[N], inv[N];

void build(int &x, int l, int r)
{
    x = ++idx;
    if (l == r)
        return;
    int m = l + r >> 1;
    build(lc(x), l, m);
    build(rc(x), m + 1, r);
}
void insert(int x, int &y, int l, int r, int k)
{
    y = ++idx;
    tr[y] = tr[x];
    tr[y].s++;
    if (l == r)
        return;
    int m = l + r >> 1;
    if (k <= m)
        insert(lc(x), lc(y), l, m, k);
    else
        insert(rc(x), rc(y), m + 1, r, k);
}

void clear()
{
    idx = 0;
    tr[0] = {0, 0, 0};
}

int quesum(int x, int y, int l, int r, int k)
{
    if (l > r)
        return 0;
    if (l >= k)
        return tr[y].s - tr[x].s;
    if (r < k)
        return 0;

    int m = l + r >> 1;
    int res = 0;
    res += quesum(rc(x), rc(y), m + 1, r, k);
    res += quesum(lc(x), lc(y), l, m, k);
    return res;
}

void solve()
{
    clear();
    int n;
    cin >> n;

    int maxv = -1;
    for (int i = 1; i <= n; i++)
    {
        cin >> a[i];
        maxv = max(a[i], maxv);
    }

    build(root[0] = 0, 1, maxv);
    for (int i = 1; i <= n; i++)
    {
        insert(root[i - 1], root[i] = 0, 1, maxv, a[i]);
    }

    int top = 0;
    for (int i = 1; i <= n; i++)
    {
        top += quesum(root[0], root[i - 1], 1, maxv, a[i] + 1);
    }
    multiset<int> ms;
    ms.insert(top);
    inv[1] = top;

    set<int> s;
    s.insert(0);
    s.insert(n + 1);

    for (int j = 1; j <= n; j++)
    {
        cin >> p[j];
        if (top == 0)
        {
            cout << "0 ";
            continue;
        }
        // top = *ms.rbegin();
        top = *prev(ms.end());
        cout << top << " ";

        int site = p[j] ^ top;

        auto t = upper_bound(s.begin(), s.end(), site);
        int L = *prev(t) + 1;
        int R = *t - 1;
        int V = inv[L];

        ms.extract(V);
        s.insert(site);
        if (L == R)
        {
            continue;
        }
        else if (L == site)
        {
            int midv = R - (site + 1) + 1 - quesum(root[site], root[R], 1, maxv, a[site]);
            ms.insert(V - midv);
            inv[L + 1] = V - midv;
            continue;
        }
        else if (R == site)
        {
            int midv = quesum(root[L - 1], root[R - 1], 1, maxv, a[site] + 1);
            ms.insert(V - midv);
            inv[L] = V - midv;
            continue;
        }

        int ll = L, lr = site - 1, rl = site + 1, rr = R;

        int midv = quesum(root[ll - 1], root[lr], 1, maxv, a[site] + 1);
        midv += rr - rl + 1 - quesum(root[rl - 1], root[rr], 1, maxv, a[site]);
        int tinv = 0, resinv = 0;
        int Lv = 0, Rv = 0;
        if (lr - ll < rr - rl)
        {
            for (int i = ll; i <= lr; i++)
            {
                tinv += quesum(root[ll - 1], root[i], 1, maxv, a[i] + 1);
                resinv += rr - rl + 1 - quesum(root[rl - 1], root[rr], 1, maxv, a[i]);
            }
            Lv = tinv;
            Rv = V - midv - tinv - resinv;
        }
        else
        {
            for (int i = rl; i <= rr; i++)
            {
                tinv += quesum(root[rl - 1], root[i], 1, maxv, a[i] + 1);
                resinv += quesum(root[ll - 1], root[lr], 1, maxv, a[i] + 1);
            }
            Lv = V - midv - tinv - resinv;
            Rv = tinv;
        }
        inv[ll] = Lv;
        inv[rl] = Rv;
        ms.insert(Lv);
        ms.insert(Rv);
    }
    cout << "\n";
}

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

    int T;
    cin >> T;
    while (T--)
    {
        solve();
    }

    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 2ms
memory: 9712kb

input:

3
5
4 3 1 1 1
5 4 5 3 1
10
9 7 1 4 7 8 5 7 4 8
21 8 15 5 9 2 4 5 10 6
15
4 8 8 1 12 1 10 14 7 14 2 9 13 10 3
37 19 23 15 7 2 10 15 2 13 4 5 8 7 10

output:

7 0 0 0 0 
20 11 7 2 0 0 0 0 0 0 
42 31 21 14 14 4 1 1 1 0 0 0 0 0 0 

result:

ok 3 lines

Test #2:

score: -100
Time Limit Exceeded

input:

11116
10
10 5 10 3 6 4 8 5 9 8
31 27 24 11 12 3 0 2 3 1
10
8 2 7 2 8 10 1 10 9 10
6 5 2 13 2 1 0 1 3 1
10
7 10 7 6 1 3 10 6 7 9
21 18 10 1 6 5 4 8 9 10
10
2 10 4 8 8 5 7 2 6 7
20 10 9 1 15 0 4 2 9 7
10
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
10
1 2 3 4 5 6 7 8 9 10
6 3 5 2 7 10 9 1 4 8
10
1 10 1 3...

output:

21 18 16 12 10 6 4 1 1 0 
12 12 10 10 4 4 4 2 1 0 
20 16 9 5 3 3 3 0 0 0 
22 14 8 8 5 5 2 1 1 0 
0 0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 0 
19 12 7 4 4 2 2 1 0 0 
20 18 8 3 1 1 0 0 0 0 
45 21 21 10 3 3 3 0 0 0 
17 11 8 2 1 1 1 0 0 0 
13 4 1 0 0 0 0 0 0 0 
29 27 22 15 9 7 4 3 1 0 
26 16 9 2 1 1 1 1 1 ...

result: