oj.uz

Submission #313763

# Submission time Handle Problem Language Result Execution time Memory
313763 2020-10-17T02:01:33 Z VROOM_VARUN Long Mansion (JOI17_long_mansion) C++14
100 / 100
 325 ms 52728 KB 
#include <bits/stdc++.h>
using namespace std;
 
const int MAXN = 5.1e5;
int N;
int C[MAXN];
vector<int> A[MAXN];
 
int last[MAXN];
int prv[MAXN]; // previous position with corresponding key
int nxt[MAXN]; // next
 
int lo[MAXN];
int hi[MAXN];
 
int main() {
	ios::sync_with_stdio(0), cin.tie(0);
	cin >> N;
	for (int i = 1; i <= N-1; i++) {
		cin >> C[i];
	}
	for (int i = 1; i <= N; i++) {
		int B; cin >> B;
		A[i].reserve(B);
		for (int j = 0; j < B; j++) {
			int v; cin >> v;
			A[i].push_back(v);
		}
	}
 
	for (int i = 1; i <= N-1; i++) {
		for (int v : A[i]) {
			last[v] = i;
		}
		prv[i] = last[C[i]];
	}
 
	fill(last + 1, last + N + 1, N+1);
	for (int i = N; i >= 2; i--) {
		for (int v : A[i]) {
			last[v] = i;
		}
		nxt[i-1] = last[C[i-1]];
	}
 
	for (int i = 1; i <= N; i++) {
		int l = i;
		int r = i;
		while (true) {
			if (l > 1 && nxt[l-1] <= r) {
				r = max(r, hi[l-1]);
				l = lo[l-1];
				continue;
			}
			if (r+1 <= N && prv[r] >= l) {
				r++;
				continue;
			}
			break;
		}
		lo[i] = l;
		hi[i] = r;
	}
 
	int Q; cin >> Q;
	while (Q--) {
		int x, y; cin >> x >> y;
		if (lo[x] <= y && y <= hi[x]) {
			cout << "YES" << '\n';
		} else {
			cout << "NO" << '\n';
		}
	}
 
	return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 12544 KB Output is correct
2 Correct 11 ms 12672 KB Output is correct
3 Correct 11 ms 12800 KB Output is correct
4 Correct 10 ms 12544 KB Output is correct
5 Correct 10 ms 12544 KB Output is correct
6 Correct 10 ms 12544 KB Output is correct
7 Correct 10 ms 12544 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 12544 KB Output is correct
2 Correct 11 ms 12672 KB Output is correct
3 Correct 11 ms 12800 KB Output is correct
4 Correct 10 ms 12544 KB Output is correct
5 Correct 10 ms 12544 KB Output is correct
6 Correct 10 ms 12544 KB Output is correct
7 Correct 10 ms 12544 KB Output is correct
8 Correct 133 ms 18424 KB Output is correct
9 Correct 132 ms 18296 KB Output is correct
10 Correct 133 ms 18680 KB Output is correct
11 Correct 139 ms 19160 KB Output is correct
12 Correct 121 ms 17912 KB Output is correct
13 Correct 127 ms 18552 KB Output is correct
14 Correct 131 ms 18552 KB Output is correct
15 Correct 129 ms 18552 KB Output is correct
16 Correct 127 ms 18424 KB Output is correct
17 Correct 128 ms 18708 KB Output is correct
18 Correct 133 ms 18708 KB Output is correct
19 Correct 129 ms 18552 KB Output is correct
20 Correct 125 ms 18552 KB Output is correct
21 Correct 129 ms 18456 KB Output is correct
22 Correct 127 ms 18480 KB Output is correct
23 Correct 132 ms 18296 KB Output is correct
24 Correct 131 ms 18296 KB Output is correct
25 Correct 130 ms 18296 KB Output is correct
26 Correct 135 ms 18296 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 207 ms 26872 KB Output is correct
2 Correct 201 ms 26744 KB Output is correct
3 Correct 194 ms 26616 KB Output is correct
4 Correct 197 ms 26872 KB Output is correct
5 Correct 199 ms 26872 KB Output is correct
6 Correct 178 ms 26232 KB Output is correct
7 Correct 173 ms 25848 KB Output is correct
8 Correct 172 ms 25848 KB Output is correct
9 Correct 177 ms 25976 KB Output is correct
10 Correct 173 ms 25848 KB Output is correct
11 Correct 175 ms 25848 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 12544 KB Output is correct
2 Correct 11 ms 12672 KB Output is correct
3 Correct 11 ms 12800 KB Output is correct
4 Correct 10 ms 12544 KB Output is correct
5 Correct 10 ms 12544 KB Output is correct
6 Correct 10 ms 12544 KB Output is correct
7 Correct 10 ms 12544 KB Output is correct
8 Correct 133 ms 18424 KB Output is correct
9 Correct 132 ms 18296 KB Output is correct
10 Correct 133 ms 18680 KB Output is correct
11 Correct 139 ms 19160 KB Output is correct
12 Correct 121 ms 17912 KB Output is correct
13 Correct 127 ms 18552 KB Output is correct
14 Correct 131 ms 18552 KB Output is correct
15 Correct 129 ms 18552 KB Output is correct
16 Correct 127 ms 18424 KB Output is correct
17 Correct 128 ms 18708 KB Output is correct
18 Correct 133 ms 18708 KB Output is correct
19 Correct 129 ms 18552 KB Output is correct
20 Correct 125 ms 18552 KB Output is correct
21 Correct 129 ms 18456 KB Output is correct
22 Correct 127 ms 18480 KB Output is correct
23 Correct 132 ms 18296 KB Output is correct
24 Correct 131 ms 18296 KB Output is correct
25 Correct 130 ms 18296 KB Output is correct
26 Correct 135 ms 18296 KB Output is correct
27 Correct 207 ms 26872 KB Output is correct
28 Correct 201 ms 26744 KB Output is correct
29 Correct 194 ms 26616 KB Output is correct
30 Correct 197 ms 26872 KB Output is correct
31 Correct 199 ms 26872 KB Output is correct
32 Correct 178 ms 26232 KB Output is correct
33 Correct 173 ms 25848 KB Output is correct
34 Correct 172 ms 25848 KB Output is correct
35 Correct 177 ms 25976 KB Output is correct
36 Correct 173 ms 25848 KB Output is correct
37 Correct 175 ms 25848 KB Output is correct
38 Correct 312 ms 47476 KB Output is correct
39 Correct 325 ms 52728 KB Output is correct
40 Correct 296 ms 40884 KB Output is correct
41 Correct 313 ms 51064 KB Output is correct
42 Correct 179 ms 27000 KB Output is correct
43 Correct 180 ms 27128 KB Output is correct
44 Correct 232 ms 35192 KB Output is correct
45 Correct 239 ms 35448 KB Output is correct
46 Correct 244 ms 35448 KB Output is correct
47 Correct 182 ms 27128 KB Output is correct
48 Correct 184 ms 26852 KB Output is correct
49 Correct 239 ms 35192 KB Output is correct
50 Correct 239 ms 35192 KB Output is correct
51 Correct 239 ms 35576 KB Output is correct
52 Correct 229 ms 34040 KB Output is correct
53 Correct 276 ms 41208 KB Output is correct
54 Correct 308 ms 48504 KB Output is correct
55 Correct 271 ms 41336 KB Output is correct