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#648833#5466. Permutation Compressionhei_yu_baiWA 1ms3852kbC++202.7kb2024-10-17 20:35:132024-10-17 20:35:17

Judging History

你现在查看的是最新测评结果

  • [2024-10-17 20:35:17]
  • 评测
  • 测评结果:WA
  • 用时:1ms
  • 内存:3852kb
  • [2024-10-17 20:35:13]
  • 提交

answer

#include<iostream>
using namespace std;
#include<vector>
#include<algorithm>
#include<set>

vector<int> bit;

void update(int p) {
	for (int i = p; i < bit.size(); i += i & -i) {
		bit[i]++;
	}
}

int getsum(int p) {
	int sum = 0;
	for (int i = p; i > 0; i -= i & -i) {
		sum += bit[i];
	}
	return sum;
}

int getsum(int l, int r) {
	return getsum(r) - getsum(l - 1);
}

const int N = 2e5 + 10;
vector<int> Log(N);

void init() {
	for (int i = 2; i < N; ++i) {
		Log[i] = Log[i >> 1] + 1;
	}
	return;
}

vector<vector<int>> st;
void build(vector<int>& t) {
	int n = t.size();
	st.resize(n, vector<int>(Log[n] + 1));

	for (int i = 1; i < n; ++i) st[i][0] = t[i];
	for (int i = 1; i <= Log[n]; ++i) {
		int d = 1 << (i - 1);
		for (int j = 1; j + d < n; ++j) {
			st[j][i] = max(st[j][i - 1], st[j + d][i - 1]);
		}
	}

	return;
}

int query(int l, int r) {
	int L = Log[r - l + 1];
	return max(st[l][L], st[r - (1 << L) + 1][L]);
}

void solve() {
	int n, m, k;
	cin >> n >> m >> k;

	bit.resize(n + 1);
	vector<int> a(n + 1), b(m + 1), p(n + 1);
	for (int i = 1; i <= n; ++i) {
		cin >> a[i];
		p[a[i]] = i;
		bit[i] = 0;
	}
	for (int i = 1; i <= m; ++i) cin >> b[i];

	multiset<int> s;
	s.insert(0);
	for (int i = 1; i <= k; ++i) {
		int v = 0;
		cin >> v;
		s.insert(v);
	}

	if (k < n - m) {
		cout << "NO\n";
		return;
	}

	int tp = 1;
	for (int i = 1; i <= m; ++i) {
		while (tp <= n && a[tp] != b[i]) ++tp;
	}

	if (tp == n + 1) {
		cout << "NO\n";
		return;
	}

	vector<bool> vis(n + 1);
	vector<int> t(n + 1);
	for (int i = 1; i <= m; ++i) {
		vis[b[i]] = true;
		t[p[b[i]]] = b[i];
	}

	build(t);

	vector<int> l(n + 1), r(n + 1);
	for (int i = 1; i <= n; ++i) {
		if (!vis[i]) {
			int tl = 0, tr = p[i];
			while (tl + 1 < tr) {
				int mid = (tl + tr) >> 1;
				(query(mid, p[i]) > i ? tl : tr) = mid;
			}
			l[p[i]] = tl;

			tl = p[i], tr = n + 1;
			while (tl + 1 < tr) {
				int mid = (tl + tr) >> 1;
				(query(p[i], mid) > i ? tr : tl) = mid;
			}
			r[p[i]] = tr;

			//cout << p[i] << " " << l[p[i]] << " " << r[p[i]] << "\n";
		}
	}

	for (int i = n; i > 0; --i) {
		if (!vis[i]) {
			int j = p[i];
			int q = getsum(l[j] + 1, r[j] - 1);
			//cout << r[j] << " " << l[j] << " " << q << " " << r[j] - l[j] - 1 - q << "\n";
			multiset<int>::iterator t = prev(s.upper_bound(r[j] - l[j] - 1 - q));
			if (t == s.begin()) {
				cout << "NO\n";
				return;
			}
			s.erase(t);
			update(j);
		}
	}

	cout << "YES\n";
	return;
}

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

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

	return 0;
}

詳細信息

Test #1:

score: 100
Accepted
time: 1ms
memory: 3848kb

input:

3
5 2 3
5 1 3 2 4
5 2
1 2 4
5 5 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
3 2 2
3 1 2
3 2
2 3

output:

YES
YES
NO

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 1ms
memory: 3852kb

input:

100
2 1 2
2 1
2
1 1
2 1 2
1 2
1
2 2
2 1 1
1 2
1
2
6 1 5
3 4 2 5 6 1
3
5 2 1 1 1
6 1 6
2 1 3 6 4 5
1
4 1 2 2 1 4
3 3 2
2 1 3
2 1 3
2 2
1 1 1
1
1
1
1 1 1
1
1
1
2 1 2
2 1
2
1 2
4 4 3
2 1 3 4
2 1 3 4
4 3 1
1 1 1
1
1
1
6 5 1
6 2 5 4 3 1
6 2 4 3 1
4
1 1 1
1
1
1
6 5 3
3 6 1 4 5 2
3 6 1 4 2
3 3 4
4 3 4
3 4 ...

output:

YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
YES
YES
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YE...

result:

ok 100 lines

Test #3:

score: -100
Wrong Answer
time: 1ms
memory: 3636kb

input:

99
6 1 6
1 5 3 4 2 6
1
1 2 1 1 1 6
1 1 1
1
1
1
4 1 3
3 4 1 2
1
1 1 2
2 2 1
2 1
2 1
2
1 1 1
1
1
1
2 1 2
1 2
2
1 2
1 1 1
1
1
1
1 1 1
1
1
1
3 2 2
3 2 1
2 1
1 2
3 3 1
2 3 1
2 3 1
1
6 1 5
3 4 2 5 6 1
3
4 2 1 1 1
6 4 4
1 6 5 2 3 4
1 2 3 4
5 4 4 6
2 1 1
1 2
1
1
6 5 1
2 1 4 5 6 3
2 1 4 6 3
2
6 3 6
5 6 2 1 3...

output:

YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
NO
YES
YES
YES
NO
YES
YES
NO
YES
NO
YES
NO
YES
YES
YES
YES
YES
YES
NO
YES
NO
NO
YES
YES
YES
Y...

result:

wrong answer 49th lines differ - expected: 'NO', found: 'YES'