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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#692524#6434. Paimon SortingRegistrationError#WA 215ms8844kbC++201.8kb2024-10-31 14:39:332024-10-31 14:39:42

Judging History

你现在查看的是最新测评结果

  • [2024-10-31 14:39:42]
  • 评测
  • 测评结果:WA
  • 用时:215ms
  • 内存:8844kb
  • [2024-10-31 14:39:33]
  • 提交

answer

#include <bits/stdc++.h>
#define all(a) begin(a), end(a)
#define sz(a) (int) (a).size()
#define int long long
using namespace std;

vector<int> brute(int n, const vector<int>& a) {
    vector<int> ans;
    for (int pf = 1; pf <= n; pf++) {
        vector<int> b(a.begin(), a.begin() + pf);
        int cnt = 0;
        for (int i = 0; i < pf; i++) {
            for (int j = 0; j < pf; j++) {
                if (b[i] < b[j]) {
                    swap(b[i], b[j]);
                    cnt++;
                }
            }
        }
        ans.push_back(cnt);
    }
    return ans;
}

const int N = 1e5 + 11;

struct BIT{
    int bit[N];
    void add(int p, int v) {
        for (int i = p; i < N; i += i & -i) {
            bit[i] += v;
        }
    }
    int qry(int p) {
        int res = 0;
        for (int i = p; i; i -= i & -i) {
            res += bit[i];
        }
        return res;
    }
} bit;

vector<int> calc(int n, const vector<int>& a) {
    vector<int> ans(n);
    int inv = 0, chain = 0, cur_max = 0;
    for (int i = 0; i < n; i++) {
        inv += bit.qry(n) - bit.qry(a[i]);
        if (bit.qry(a[i]) == bit.qry(a[i] - 1))
            bit.add(a[i], 1);
        if (a[i] > cur_max) cur_max = a[i], chain++;
        ans[i] = inv + (chain - 1) * 2;
        // cout << inv << ' ' << num_eq << ' ' << chain << endl;
    }
    set<int> s (all(a));
    for (auto v : s) {
        bit.add(v, -1);
    }
    return ans;
}

void solve() {
    int n; cin >> n;
    vector<int> a(n);
    for (int i = 0; i < n; i++) {
        cin >> a[i];
    }

    vector<int> ans = calc(n, a);
    
    for (int i = 0; i < n; i++) {
        cout << ans[i] << " \n"[i == n - 1];
    }
}

int32_t main() {
    cin.tie(0)->sync_with_stdio(false);

    int t = 1; cin >> t;
    while (t--) {
        solve();
    }
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3808kb

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: -100
Wrong Answer
time: 215ms
memory: 8844kb

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 20 22 23 27 29 35 39 48
0
0 0
0 1 1
0 2 4 6 9 9 9 11 15 17 23 29 31 34 38 42 51
0 0 2
0 1 3 5 8 10 14
0 1 3 4 6 9 9
0 1 1 3 5 9 1...

result:

wrong answer 5th lines differ - expected: '0 1 3 3 4 8 10 12 16 18 27 29 30 34 36 42 46 55', found: '0 1 3 3 4 8 10 12 16 18 20 22 23 27 29 35 39 48'