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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#718498#6434. Paimon SortingChihiroWA 0ms3616kbC++171.5kb2024-11-06 20:41:102024-11-06 20:41:11

Judging History

你现在查看的是最新测评结果

  • [2024-11-06 20:41:11]
  • 评测
  • 测评结果:WA
  • 用时:0ms
  • 内存:3616kb
  • [2024-11-06 20:41:10]
  • 提交

answer

#include <bits/stdc++.h>
#define fixed(s) fixed<<setprecision(12)<<s

using namespace std;
typedef long long ll;
typedef array<int, 3> Arr;
typedef pair<int, int> PII;

const int N = 2e5 + 7;

int n;
int tr[N], st[N];

int lowbit(int x){
    return x & -x;
}

void add(int x, int c){
    for (int i = x; i <= n; i += lowbit(i)) tr[i] += c;
}

int sum(int x){
    int res = 0;
    for (int i = x; i; i -= lowbit(i)) res += tr[i];
    return res;
}

void solve(){
    cin >> n;
    vector<int> a(n + 1);
    for (int i = 1; i <= n; i++) cin >> a[i];
    if (n == 1){
        cout << "0\n";
        return;
    }
    vector<int> ans(n + 1);
    ans[1] = 0;
    add(a[1], 1), st[a[1]] = 1;
    if (!st[a[2]]) add(a[2], 1), st[a[2]] = 1;
    int cnt = 0;
    for (int i = 1; i <= 2; i++){
        for (int j = 1; j <= 2; j++){
            if (a[i] < a[j]){
                swap(a[i], a[j]);
                cnt++;
            }
        }
    }
    ans[2] = cnt;
    for (int i = 3; i <= n; i++){
        // if (i == 5) cerr << sum(n) - sum(a[i]);
        int t = sum(n) - sum(a[i]);
        if (t == 0 && !st[a[i]]) ans[i] = ans[i - 1] + 2;
        else ans[i] = ans[i - 1] + t;
        if (!st[a[i]]) add(a[i], 1);
        st[a[i]] = 1;
    }
    for (int i = 1; i <= n; i++){
        cout << ans[i];
        if (i != n) cout << ' ';
    }
    cout << '\n';
}

int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    int T = 1;
    cin >> T;
    while(T--){
        solve();
    }
    return 0;
}

Details

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Test #1:

score: 0
Wrong Answer
time: 0ms
memory: 3616kb

input:

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

output:

0 2 3 5 7
0 2 2
0

result:

wrong answer 2nd lines differ - expected: '0 2 4', found: '0 2 2'