QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#448672#7108. CouleurOneWanAC ✓3313ms48632kbC++233.6kb2024-06-19 21:41:032024-06-19 21:41:04

Judging History

你现在查看的是最新测评结果

  • [2024-06-19 21:41:04]
  • 评测
  • 测评结果:AC
  • 用时:3313ms
  • 内存:48632kb
  • [2024-06-19 21:41:03]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
// 2023 OneWan
const int N = 1000005;
int n, a[N];
long long child[N << 5][2], sum[N << 5];
int tot;
int update(int L, int R, int old, int pos) {
    int now = ++tot;
    sum[now] = sum[old] + 1;
    child[now][0] = child[old][0];
    child[now][1] = child[old][1];
    if (L == R) {
        return now;
    }
    int mid = L + R >> 1;
    if (pos <= mid) child[now][0] = update(L, mid, child[now][0], pos);
    else child[now][1] = update(mid + 1, R, child[now][1], pos);
    return now;
}
int query(int L, int R, int old, int QL, int QR) {
    if (QL > QR) return 0;
    if (QL <= L && R <= QR) {
        return sum[old];
    }
    int mid = L + R >> 1;
    int res = 0;
    if (QL <= mid) {
        res += query(L, mid, child[old][0], QL, QR);
    }
    if (QR > mid) {
        res += query(mid + 1, R, child[old][1], QL, QR);
    }
    return res;
}
int root[N + 5];
struct Node {
	int L, R;
	long long res;
	Node() = default;
	Node(int L, int R, long long res) : L(L), R(R), res(res) {}
	friend bool operator<(const Node &lhs, const Node &rhs) {
		return lhs.L < rhs.L;
	}
};
void solve() {
    cin >> n;
    for (int i = 1 ; i <= n ; i++) {
        cin >> a[i];
    }
    tot = 0;
    for (int i = 1 ; i <= n ; i++) {
        root[i] = update(1, n, root[i - 1], a[i]);
    }
    multiset<long long> ans;
    set<Node> st;
    {
    	long long res = 0;
    	for (int i = 1 ; i <= n ; i++) {
    		res += query(1, n, root[i - 1], a[i] + 1, n);
    	}
    	ans.insert(res);
    	st.emplace(1, n, res);
    }
    ans.insert(0LL);
    ans.insert(0LL);
    ans.insert(0LL);
    ans.insert(0LL);
    ans.insert(0LL);
    for (int i = 1 ; i <= n ; i++) {
    	long long temp = *rbegin(ans);
    	cout << temp << " ";
    	long long x;
    	cin >> x;
    	if (i == n) break;
    	x ^= temp;
    	auto it = st.upper_bound(Node(x, x, 0));
    	if (it == begin(st)) continue;
    	it--;
    	auto [L, R, k] = *it;
    	st.erase(it);
    	ans.extract(k);
    	if (x - L <= R - x) {
    		long long res1 = 0, res2 = 0;
    		for (int j = L ; j < x ; j++) {
    			res1 += query(1, n, root[j - 1], a[j] + 1, n);
    			res1 -= query(1, n, root[L - 1], a[j] + 1, n);
    			res2 += query(1, n, root[R], 1, a[j] - 1);
    			res2 -= query(1, n, root[x], 1, a[j] - 1);
    		}
    		if (L <= x - 1) {
    			st.emplace(L, x - 1, res1);
    			ans.insert(res1);
    		}
    		if (x + 1 <= R) {
    			res2 = k - res1 - res2 - (query(1, n, root[R], 1, a[x] - 1) - query(1, n, root[x], 1, a[x] - 1)) - (query(1, n, root[x - 1], a[x] + 1, n) - query(1, n, root[L - 1], a[x] + 1, n));
    			st.emplace(x + 1, R, res2);
    			ans.insert(res2);
    		}
    	} else {
    		long long res1 = 0, res2 = 0;
    		for (int j = x + 1 ; j <= R ; j++) {
    			res1 += query(1, n, root[R], 1, a[j] - 1);
    			res1 -= query(1, n, root[j], 1, a[j] - 1);
    			res2 += query(1, n, root[x - 1], a[j] + 1, n);
    			res2 -= query(1, n, root[L - 1], a[j] + 1, n);
    		}
    		if (x + 1 <= R) {
    			st.emplace(x + 1, R, res1);
    			ans.insert(res1);
    		}
    		if (L <= x - 1) {
    			res2 = k - res1 - res2 - (query(1, n, root[x - 1], a[x] + 1, n) - query(1, n, root[L - 1], a[x] + 1, n)) - (query(1, n, root[R], 1, a[x] - 1) - query(1, n, root[x], 1, a[x] - 1));
    			st.emplace(L, x - 1, res2);
    			ans.insert(res2);
    		}
    	}
    }
    cout << "\n";
}
int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int T;
    cin >> T;
    while (T--) {
    	solve();
    }
    return 0;
}

这程序好像有点Bug,我给组数据试试?

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3840kb

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: 0
Accepted
time: 3313ms
memory: 48632kb

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:

ok 11116 lines

Extra Test:

score: 0
Extra Test Passed