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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#205356#6434. Paimon SortingFr1nGeLoveAC ✓113ms4008kbC++201.7kb2023-10-07 15:39:112023-10-07 15:39:11

Judging History

你现在查看的是最新测评结果

  • [2023-10-07 15:39:11]
  • 评测
  • 测评结果:AC
  • 用时:113ms
  • 内存:4008kb
  • [2023-10-07 15:39:11]
  • 提交

answer

#include <bits/stdc++.h>

using i64 = long long;

template <typename T>
struct Fenwick {
    int n;
    std::vector<T> a;
    Fenwick(int n = 0) {
        init(n);
    }
    void init(int n) {
        this->n = n;
        a.assign(n, T());
    }   
    void add(int x, T v) {
        for (int i = x + 1; i <= n; i += i & -i) {
            a[i - 1] += v;
        }
    }    
    T sum(int x) {
        auto ans = T();
        for (int i = x; i > 0; i -= i & -i) {
            ans += a[i - 1];
        }
        return ans;
    }    
    T rangeSum(int l, int r) {
        return sum(r) - sum(l);
    }    
    int kth(T k) {
        int x = 0;
        for (int i = 1 << std::__lg(n); i; i /= 2) {
            if (x + i <= n && k >= a[x + i - 1]) {
                x += i;
                k -= a[x - 1];
            }
        }
        return x;
    }
};

void solve() {
	int n;
	std::cin >> n;

	std::vector<int> a(n);
	for (int i = 0; i < n; i++) {
		std::cin >> a[i];
		a[i]--;
	}

	i64 ans = 0;
	std::cout << ans;

	Fenwick<int> fen(n);
	int mx = a.front();
	fen.add(mx, 1);

	int cnt = 1;
	std::vector<int> p{0};

	for (int i = 1; i < n; i++) {
		if (a[i] <= mx) {
			ans += cnt - fen.sum(a[i] + 1);
			if (a[i] == mx) {
				p.push_back(i);
			}
		} else {
			if (p.size() == 1) {
				ans += 2;
			} else {
				ans += 2 + i - p[1];
			}
			mx = a[i];
			p.clear();
			p.push_back(i);
		}

		if (fen.rangeSum(a[i], a[i] + 1) == 0) {
			fen.add(a[i], 1);
			cnt++;
		}
		std::cout << " " << ans;
	}

	std::cout << "\n";
}

int main() {
	std::ios::sync_with_stdio(false);
	std::cin.tie(nullptr);

	int t;
	std::cin >> t;

	while (t--) {
		solve();
	}

	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3588kb

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: 113ms
memory: 4008kb

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