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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#212710#6434. Paimon SortingLinXceAC ✓128ms4612kbC++142.4kb2023-10-13 19:46:482023-10-13 19:46:49

Judging History

你现在查看的是最新测评结果

  • [2023-10-13 19:46:49]
  • 评测
  • 测评结果:AC
  • 用时:128ms
  • 内存:4612kb
  • [2023-10-13 19:46:48]
  • 提交

answer

#include <algorithm>
#include <array>
#include <bitset>
#include <cmath>
#include <cstdio>
#include <cstring>
#include <iomanip>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <set>
#include <unordered_map>
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define endl '\n'
using namespace std;
using ll = long long;
using db = double;
using pii = pair<int, int>;
const int inf = 0x3f3f3f3f;
const int mod = 998244353;
const int N = 1e5 + 10, M = 1e3 + 10;
ll a[N], n;
int tr[N]; // tr[x]存储[x-2^k(层数),x]即[x-lowbit(x),x]的和,下标从1开始
int lowbit(int x)
{
    return x & -x;
}
void add(int x, int v) // 给x位置+v
{
    for (int i = x; i <= n; i += lowbit(i)) // 修改该点和上枝的值
        tr[i] += v;
} // 使a[x]=b : add(x,b-(query(x)-query(x-1)) )
int query(int x) // 查询1~x前缀和
{
    int res = 0;
    for (int i = x; i; i -= lowbit(i))
        res += tr[i];
    return res;
}
void solve()
{
    ll ans = 0, top;
    cin >> n;
    for (int i = 1; i <= n; ++i)
        cin >> a[i];
    top = a[1];
    if (n != 1)
        cout << 0 << ' ';
    else
        cout << 0;
    add(a[1], 1);
    int flag = 0;
    for (int i = 2; i <= n; ++i)
    {
        if (a[i] > top)
        {
            ans += 1;
            // cout << endl << "top " << top << endl;
            add(a[i], 1);
            ll pos = query(n) - query(top);
            if(flag)ans += pos + (i - flag);
            else ans += pos;
            top = a[i];
            flag = 0;
            if (n != i)
                cout << ans << ' ';
            else
                cout << ans;
            continue;
        }
        else if (a[i] == top)
        {
            if (!flag)
            {
                flag = i;
            }
        }
        ll pos = query(n) - query(a[i]);
        // cout <<endl<< "pos " << query(n) << endl;
        ans += pos;
        if (query(a[i]) - query(a[i] - 1) == 0)
            add(a[i], 1);
        if (n != i)
            cout << ans << ' ';
        else
            cout << ans;
    }
    cout << endl;
    for (int i = 1; i <= n; i++)
        if (query(a[i]) - query(a[i] - 1) == 1)
            add(a[i], -1);
}
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int t;
    cin >> t;
    while (t--)
        solve();
    return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 0ms
memory: 3496kb

input:

3
5
2 3 2 1 5
3
1 2 3
1
1

output:

0 2 3 5 7
0 2 4
0

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 128ms
memory: 4612kb

input:

6107
19
10 13 8 8 11 18 12 9 15 19 6 13 11 11 17 9 14 2 18
12
1 8 10 2 10 2 6 1 5 9 5 7
16
14 4 2 15 12 14 10 3 2 9 15 4 12 9 5 15
10
3 2 5 6 7 8 6 1 6 4
18
6 5 12 12 11 2 10 10 5 10 13 15 13 10 17 7 11 2
1
1
2
1 1
3
2 1 2
17
11 15 3 10 7 15 15 10 5 17 3 3 14 13 11 11 2
3
2 2 3
7
6 1 7 5 3 5 1
7
2 1...

output:

0 2 4 6 7 9 11 16 17 19 28 31 36 41 43 51 55 67 68
0 2 4 6 6 8 10 14 17 18 22 25
0 1 3 5 7 8 11 16 22 26 26 31 33 37 42 42
0 1 3 5 7 9 11 17 19 23
0 1 3 3 4 8 10 12 16 18 27 29 30 34 36 42 46 55
0
0 0
0 1 1
0 2 4 6 9 9 9 11 15 21 27 33 35 38 42 46 55
0 0 3
0 1 3 5 8 10 14
0 1 3 4 6 9 9
0 1 1 3 7 11 ...

result:

ok 6107 lines