oj.uz

Submission #984338

# Submission time Handle Problem Language Result Execution time Memory
984338 2024-05-16T14:08:24 Z AmirAli_H1 Long Mansion (JOI17_long_mansion) C++17
100 / 100
 691 ms 178500 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

# Verdict Execution time Memory Grader output
1 Correct 22 ms 39680 KB Output is correct
2 Correct 11 ms 39772 KB Output is correct
3 Correct 13 ms 40028 KB Output is correct
4 Correct 9 ms 39516 KB Output is correct
5 Correct 10 ms 39640 KB Output is correct
6 Correct 10 ms 39516 KB Output is correct
7 Correct 11 ms 39516 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 39680 KB Output is correct
2 Correct 11 ms 39772 KB Output is correct
3 Correct 13 ms 40028 KB Output is correct
4 Correct 9 ms 39516 KB Output is correct
5 Correct 10 ms 39640 KB Output is correct
6 Correct 10 ms 39516 KB Output is correct
7 Correct 11 ms 39516 KB Output is correct
8 Correct 86 ms 41196 KB Output is correct
9 Correct 88 ms 41044 KB Output is correct
10 Correct 113 ms 41396 KB Output is correct
11 Correct 100 ms 41620 KB Output is correct
12 Correct 106 ms 41164 KB Output is correct
13 Correct 101 ms 41264 KB Output is correct
14 Correct 95 ms 41216 KB Output is correct
15 Correct 110 ms 41720 KB Output is correct
16 Correct 88 ms 41528 KB Output is correct
17 Correct 97 ms 41336 KB Output is correct
18 Correct 103 ms 41212 KB Output is correct
19 Correct 103 ms 41300 KB Output is correct
20 Correct 101 ms 41424 KB Output is correct
21 Correct 114 ms 41608 KB Output is correct
22 Correct 94 ms 41252 KB Output is correct
23 Correct 90 ms 41176 KB Output is correct
24 Correct 92 ms 41032 KB Output is correct
25 Correct 95 ms 41208 KB Output is correct
26 Correct 114 ms 41372 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 258 ms 68416 KB Output is correct
2 Correct 228 ms 71740 KB Output is correct
3 Correct 233 ms 71648 KB Output is correct
4 Correct 211 ms 71760 KB Output is correct
5 Correct 245 ms 71672 KB Output is correct
6 Correct 208 ms 71072 KB Output is correct
7 Correct 172 ms 71000 KB Output is correct
8 Correct 164 ms 70836 KB Output is correct
9 Correct 180 ms 70768 KB Output is correct
10 Correct 193 ms 70652 KB Output is correct
11 Correct 172 ms 70892 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 22 ms 39680 KB Output is correct
2 Correct 11 ms 39772 KB Output is correct
3 Correct 13 ms 40028 KB Output is correct
4 Correct 9 ms 39516 KB Output is correct
5 Correct 10 ms 39640 KB Output is correct
6 Correct 10 ms 39516 KB Output is correct
7 Correct 11 ms 39516 KB Output is correct
8 Correct 86 ms 41196 KB Output is correct
9 Correct 88 ms 41044 KB Output is correct
10 Correct 113 ms 41396 KB Output is correct
11 Correct 100 ms 41620 KB Output is correct
12 Correct 106 ms 41164 KB Output is correct
13 Correct 101 ms 41264 KB Output is correct
14 Correct 95 ms 41216 KB Output is correct
15 Correct 110 ms 41720 KB Output is correct
16 Correct 88 ms 41528 KB Output is correct
17 Correct 97 ms 41336 KB Output is correct
18 Correct 103 ms 41212 KB Output is correct
19 Correct 103 ms 41300 KB Output is correct
20 Correct 101 ms 41424 KB Output is correct
21 Correct 114 ms 41608 KB Output is correct
22 Correct 94 ms 41252 KB Output is correct
23 Correct 90 ms 41176 KB Output is correct
24 Correct 92 ms 41032 KB Output is correct
25 Correct 95 ms 41208 KB Output is correct
26 Correct 114 ms 41372 KB Output is correct
27 Correct 258 ms 68416 KB Output is correct
28 Correct 228 ms 71740 KB Output is correct
29 Correct 233 ms 71648 KB Output is correct
30 Correct 211 ms 71760 KB Output is correct
31 Correct 245 ms 71672 KB Output is correct
32 Correct 208 ms 71072 KB Output is correct
33 Correct 172 ms 71000 KB Output is correct
34 Correct 164 ms 70836 KB Output is correct
35 Correct 180 ms 70768 KB Output is correct
36 Correct 193 ms 70652 KB Output is correct
37 Correct 172 ms 70892 KB Output is correct
38 Correct 652 ms 155072 KB Output is correct
39 Correct 691 ms 178228 KB Output is correct
40 Correct 520 ms 127368 KB Output is correct
41 Correct 535 ms 178500 KB Output is correct
42 Correct 226 ms 71968 KB Output is correct
43 Correct 224 ms 71968 KB Output is correct
44 Correct 323 ms 101948 KB Output is correct
45 Correct 287 ms 102216 KB Output is correct
46 Correct 309 ms 102492 KB Output is correct
47 Correct 180 ms 72060 KB Output is correct
48 Correct 172 ms 71688 KB Output is correct
49 Correct 270 ms 101968 KB Output is correct
50 Correct 285 ms 101940 KB Output is correct
51 Correct 304 ms 102328 KB Output is correct
52 Correct 313 ms 101668 KB Output is correct
53 Correct 395 ms 131068 KB Output is correct
54 Correct 503 ms 160812 KB Output is correct
55 Correct 390 ms 131056 KB Output is correct