oj.uz

답안 #984341

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
984341 2024-05-16T14:09:38 Z AmirAli_H1 Long Mansion (JOI17_long_mansion) C++17
100 / 100
 698 ms 168812 KB 
// In the name of Allah

#include <bits/stdc++.h>
using namespace std;

typedef		long long int			ll;
typedef		long double				ld;
typedef		pair<int, int>			pii;
typedef		pair<ll, ll>			pll;
typedef		complex<ld>				cld;

#define		all(x)					(x).begin(),(x).end()
#define		len(x)					((ll) (x).size())
#define		F						first
#define		S						second
#define		X						real()
#define		Y						imag()
#define		pb						push_back
#define		sep						' '
#define		endl					'\n'
#define		Mp						make_pair
#define		kill(x)					cout << x << '\n', exit(0)
#define		set_dec(x)				cout << fixed << setprecision(x);
#define		file_io(x,y)			freopen(x, "r", stdin); freopen(y, "w", stdout);

int n, q;
const int maxn = 5e5 + 7;
const int maxlg = 20;
int rmnq[maxn][maxlg], rmxq[maxn][maxlg];
int A[maxn]; vector<int> ls[maxn];
int A1[maxn], A2[maxn], ind[maxn];
vector<int> lsx[maxn]; set<int> st;
int val1[maxn], val2[maxn];

int get_min(int l, int r) {
	int j = __lg(r - l);
	return min(rmnq[l][j], rmnq[r - (1 << j)][j]);
}

int get_max(int l, int r) {
	int j = __lg(r - l);
	return max(rmxq[l][j], rmxq[r - (1 << j)][j]);
}

int main() {
	ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	
	cin >> n;
	for (int i = 1; i <= n - 1; i++) {
		cin >> A[i]; A[i]--;
	}
	for (int i = 1; i <= n; i++) {
		int T;
		cin >> T;
		while (T--) {
			int x;
			cin >> x; x--;
			ls[i].pb(x);
		}
	}
	
	fill(ind, ind + n, 0);
	for (int i = 1; i <= n; i++) {
		for (int j : ls[i]) ind[j] = i;
		if (i <= n - 1) A1[i] = ind[A[i]];
	}
	fill(ind, ind + n, n + 1);
	for (int i = n; i >= 1; i--) {
		for (int j : ls[i]) ind[j] = i;
		if (i - 1 >= 1) A2[i - 1] = ind[A[i - 1]];
	}
	
	st.clear();
	for (int i = 0; i <= n + 1; i++) lsx[i].clear();
	for (int i = 1; i <= n - 1; i++) lsx[A2[i]].pb(i);
	for (int i = n + 1; i >= 0; i--) {
		for (int j : lsx[i]) st.insert(j);
		if (i - 1 >= 1 && i - 1 <= n - 1) {
			if (A1[i - 1] == 0) val1[i - 1] = 0;
			else {
				auto it = st.lower_bound(A1[i - 1]);
				if (it == st.end()) val1[i - 1] = n + 1;
				else val1[i - 1] = (*it) + 1;
			}
		}
	}
	st.clear();
	for (int i = 0; i <= n + 1; i++) lsx[i].clear();
	for (int i = 1; i <= n - 1; i++) lsx[A1[i]].pb(i);
	for (int i = 0; i <= n + 1; i++) {
		for (int j : lsx[i]) st.insert(j);
		if (i >= 1 && i <= n - 1) {
			if (A2[i] == n + 1) val2[i + 1] = n + 1;
			else {
				auto it = st.lower_bound(A2[i]);
				if (it == st.begin()) val2[i + 1] = 0;
				else {
					it--; val2[i + 1] = *it;
				}
			}
		}
	}
	
	for (int i = n; i >= 1; i--) {
		rmnq[i][0] = val1[i]; rmxq[i][0] = val2[i];
		for (int j = 1; j < maxlg; j++) {
			rmnq[i][j] = rmnq[i][j - 1]; rmxq[i][j] = rmxq[i][j - 1];
			if (i + (1 << (j - 1)) <= n) {
				rmnq[i][j] = min(rmnq[i][j], rmnq[i + (1 << (j - 1))][j - 1]);
				rmxq[i][j] = max(rmxq[i][j], rmxq[i + (1 << (j - 1))][j - 1]);
			}
		}
	}
	
	cin >> q;
	while (q--) {
		int u, v;
		cin >> u >> v;
		
		if (u < v) {
			if (get_min(u, v) <= u) cout << "NO" << endl;
			else cout << "YES" << endl;
		}
		else {
			if (get_max(v + 1, u + 1) >= u) cout << "NO" << endl;
			else cout << "YES" << endl;
		}
	}
	
	return 0;
}

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 39516 KB Output is correct
2 Correct 10 ms 40020 KB Output is correct
3 Correct 11 ms 39872 KB Output is correct
4 Correct 10 ms 39516 KB Output is correct
5 Correct 11 ms 39696 KB Output is correct
6 Correct 9 ms 39624 KB Output is correct
7 Correct 9 ms 39588 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 39516 KB Output is correct
2 Correct 10 ms 40020 KB Output is correct
3 Correct 11 ms 39872 KB Output is correct
4 Correct 10 ms 39516 KB Output is correct
5 Correct 11 ms 39696 KB Output is correct
6 Correct 9 ms 39624 KB Output is correct
7 Correct 9 ms 39588 KB Output is correct
8 Correct 86 ms 41040 KB Output is correct
9 Correct 85 ms 41128 KB Output is correct
10 Correct 96 ms 41292 KB Output is correct
11 Correct 97 ms 41588 KB Output is correct
12 Correct 93 ms 41040 KB Output is correct
13 Correct 96 ms 41164 KB Output is correct
14 Correct 88 ms 41308 KB Output is correct
15 Correct 88 ms 41296 KB Output is correct
16 Correct 82 ms 41740 KB Output is correct
17 Correct 101 ms 41256 KB Output is correct
18 Correct 88 ms 41300 KB Output is correct
19 Correct 89 ms 41412 KB Output is correct
20 Correct 86 ms 41520 KB Output is correct
21 Correct 83 ms 41664 KB Output is correct
22 Correct 88 ms 41196 KB Output is correct
23 Correct 84 ms 41052 KB Output is correct
24 Correct 84 ms 41044 KB Output is correct
25 Correct 85 ms 41108 KB Output is correct
26 Correct 85 ms 41184 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 251 ms 64644 KB Output is correct
2 Correct 197 ms 64556 KB Output is correct
3 Correct 199 ms 64436 KB Output is correct
4 Correct 197 ms 64616 KB Output is correct
5 Correct 196 ms 64416 KB Output is correct
6 Correct 170 ms 64404 KB Output is correct
7 Correct 172 ms 64784 KB Output is correct
8 Correct 181 ms 64788 KB Output is correct
9 Correct 181 ms 64820 KB Output is correct
10 Correct 176 ms 64732 KB Output is correct
11 Correct 185 ms 64636 KB Output is correct

Subtask #4
75.0 / 75.0

# 결과 실행 시간 메모리 Grader output
1 Correct 9 ms 39516 KB Output is correct
2 Correct 10 ms 40020 KB Output is correct
3 Correct 11 ms 39872 KB Output is correct
4 Correct 10 ms 39516 KB Output is correct
5 Correct 11 ms 39696 KB Output is correct
6 Correct 9 ms 39624 KB Output is correct
7 Correct 9 ms 39588 KB Output is correct
8 Correct 86 ms 41040 KB Output is correct
9 Correct 85 ms 41128 KB Output is correct
10 Correct 96 ms 41292 KB Output is correct
11 Correct 97 ms 41588 KB Output is correct
12 Correct 93 ms 41040 KB Output is correct
13 Correct 96 ms 41164 KB Output is correct
14 Correct 88 ms 41308 KB Output is correct
15 Correct 88 ms 41296 KB Output is correct
16 Correct 82 ms 41740 KB Output is correct
17 Correct 101 ms 41256 KB Output is correct
18 Correct 88 ms 41300 KB Output is correct
19 Correct 89 ms 41412 KB Output is correct
20 Correct 86 ms 41520 KB Output is correct
21 Correct 83 ms 41664 KB Output is correct
22 Correct 88 ms 41196 KB Output is correct
23 Correct 84 ms 41052 KB Output is correct
24 Correct 84 ms 41044 KB Output is correct
25 Correct 85 ms 41108 KB Output is correct
26 Correct 85 ms 41184 KB Output is correct
27 Correct 251 ms 64644 KB Output is correct
28 Correct 197 ms 64556 KB Output is correct
29 Correct 199 ms 64436 KB Output is correct
30 Correct 197 ms 64616 KB Output is correct
31 Correct 196 ms 64416 KB Output is correct
32 Correct 170 ms 64404 KB Output is correct
33 Correct 172 ms 64784 KB Output is correct
34 Correct 181 ms 64788 KB Output is correct
35 Correct 181 ms 64820 KB Output is correct
36 Correct 176 ms 64732 KB Output is correct
37 Correct 185 ms 64636 KB Output is correct
38 Correct 682 ms 143576 KB Output is correct
39 Correct 698 ms 166732 KB Output is correct
40 Correct 472 ms 117060 KB Output is correct
41 Correct 539 ms 168812 KB Output is correct
42 Correct 189 ms 64480 KB Output is correct
43 Correct 181 ms 64480 KB Output is correct
44 Correct 277 ms 91984 KB Output is correct
45 Correct 285 ms 91832 KB Output is correct
46 Correct 276 ms 91988 KB Output is correct
47 Correct 181 ms 64664 KB Output is correct
48 Correct 168 ms 64596 KB Output is correct
49 Correct 261 ms 91852 KB Output is correct
50 Correct 268 ms 91988 KB Output is correct
51 Correct 266 ms 91920 KB Output is correct
52 Correct 276 ms 92540 KB Output is correct
53 Correct 383 ms 119992 KB Output is correct
54 Correct 472 ms 148152 KB Output is correct
55 Correct 390 ms 120004 KB Output is correct