#include <cctype>
#include <cstdio>
#include <cstring>
#include <vector>
const int N = 500000 + 10;
int nextInt() {
char ch;
while (!isdigit(ch = getchar())) {}
int res = ch - '0';
while (isdigit(ch = getchar())) res = 10 * res + ch - '0';
return res;
}
int n, c[N], left[N], right[N];
std::vector<int> a[N];
int pred[N], succ[N];
void init() {
static int last[N];
memset(last, 0, sizeof last);
for (int i = 1; i < n; ++i) {
for (int j = 0; j < a[i].size(); ++j) last[a[i][j]] = i;
pred[i] = last[c[i]];
}
memset(last, 0, sizeof last);
for (int i = n; i > 1; --i) {
for (int j = 0; j < a[i].size(); ++j) last[a[i][j]] = i;
succ[i - 1] = last[c[i - 1]];
}
}
inline bool check(int l, int r, int x) {
return (pred[x] && l <= pred[x] && pred[x] <= r) || (succ[x] && l <= succ[x] && succ[x] <= r);
}
int main() {
scanf("%d", &n);
for (int i = 1; i < n; ++i) c[i] = nextInt();
for (int i = 1; i <= n; ++i)
for (int b = nextInt(); b--;)
a[i].push_back(nextInt());
init();
for (int i = 1; i <= n; ++i) {
int &l = left[i] = i, &r = right[i] = i;
while (1) {
if (l > 1 && check(l, r, l - 1)) {
r = std::max(r, right[l - 1]);
l = left[l - 1];
continue;
}
if (r < n && check(l, r, r)) {
++r;
continue;
}
break;
}
}
for (int q = nextInt(); q--;) {
int x = nextInt(), y = nextInt();
puts(left[x] <= y && y <= right[x] ? "YES" : "NO");
}
return 0;
}
Compilation message
long_mansion.cpp: In function 'void init()':
long_mansion.cpp:26:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int j = 0; j < a[i].size(); ++j) last[a[i][j]] = i;
^
long_mansion.cpp:31:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int j = 0; j < a[i].size(); ++j) last[a[i][j]] = i;
^
long_mansion.cpp: In function 'int main()':
long_mansion.cpp:41:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &n);
^
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
9 ms |
24740 KB |
Output is correct |
2 |
Correct |
3 ms |
24740 KB |
Output is correct |
3 |
Correct |
3 ms |
24740 KB |
Output is correct |
4 |
Correct |
3 ms |
24740 KB |
Output is correct |
5 |
Correct |
3 ms |
24740 KB |
Output is correct |
6 |
Correct |
6 ms |
24740 KB |
Output is correct |
7 |
Correct |
6 ms |
24740 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
9 ms |
24740 KB |
Output is correct |
2 |
Correct |
3 ms |
24740 KB |
Output is correct |
3 |
Correct |
3 ms |
24740 KB |
Output is correct |
4 |
Correct |
3 ms |
24740 KB |
Output is correct |
5 |
Correct |
3 ms |
24740 KB |
Output is correct |
6 |
Correct |
6 ms |
24740 KB |
Output is correct |
7 |
Correct |
6 ms |
24740 KB |
Output is correct |
8 |
Correct |
56 ms |
24740 KB |
Output is correct |
9 |
Correct |
66 ms |
24740 KB |
Output is correct |
10 |
Correct |
73 ms |
24740 KB |
Output is correct |
11 |
Correct |
83 ms |
24740 KB |
Output is correct |
12 |
Correct |
59 ms |
24608 KB |
Output is correct |
13 |
Correct |
79 ms |
24740 KB |
Output is correct |
14 |
Correct |
73 ms |
24740 KB |
Output is correct |
15 |
Correct |
66 ms |
24740 KB |
Output is correct |
16 |
Correct |
63 ms |
24740 KB |
Output is correct |
17 |
Correct |
69 ms |
24740 KB |
Output is correct |
18 |
Correct |
83 ms |
24740 KB |
Output is correct |
19 |
Correct |
66 ms |
24740 KB |
Output is correct |
20 |
Correct |
59 ms |
24740 KB |
Output is correct |
21 |
Correct |
69 ms |
24740 KB |
Output is correct |
22 |
Correct |
63 ms |
24740 KB |
Output is correct |
23 |
Correct |
46 ms |
24740 KB |
Output is correct |
24 |
Correct |
63 ms |
24740 KB |
Output is correct |
25 |
Correct |
66 ms |
24740 KB |
Output is correct |
26 |
Correct |
49 ms |
24740 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
169 ms |
28568 KB |
Output is correct |
2 |
Correct |
173 ms |
28436 KB |
Output is correct |
3 |
Correct |
176 ms |
28304 KB |
Output is correct |
4 |
Correct |
173 ms |
28436 KB |
Output is correct |
5 |
Correct |
136 ms |
28436 KB |
Output is correct |
6 |
Correct |
106 ms |
27776 KB |
Output is correct |
7 |
Correct |
103 ms |
27776 KB |
Output is correct |
8 |
Correct |
119 ms |
27776 KB |
Output is correct |
9 |
Correct |
123 ms |
27776 KB |
Output is correct |
10 |
Correct |
76 ms |
27776 KB |
Output is correct |
11 |
Correct |
133 ms |
27776 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
9 ms |
24740 KB |
Output is correct |
2 |
Correct |
3 ms |
24740 KB |
Output is correct |
3 |
Correct |
3 ms |
24740 KB |
Output is correct |
4 |
Correct |
3 ms |
24740 KB |
Output is correct |
5 |
Correct |
3 ms |
24740 KB |
Output is correct |
6 |
Correct |
6 ms |
24740 KB |
Output is correct |
7 |
Correct |
6 ms |
24740 KB |
Output is correct |
8 |
Correct |
56 ms |
24740 KB |
Output is correct |
9 |
Correct |
66 ms |
24740 KB |
Output is correct |
10 |
Correct |
73 ms |
24740 KB |
Output is correct |
11 |
Correct |
83 ms |
24740 KB |
Output is correct |
12 |
Correct |
59 ms |
24608 KB |
Output is correct |
13 |
Correct |
79 ms |
24740 KB |
Output is correct |
14 |
Correct |
73 ms |
24740 KB |
Output is correct |
15 |
Correct |
66 ms |
24740 KB |
Output is correct |
16 |
Correct |
63 ms |
24740 KB |
Output is correct |
17 |
Correct |
69 ms |
24740 KB |
Output is correct |
18 |
Correct |
83 ms |
24740 KB |
Output is correct |
19 |
Correct |
66 ms |
24740 KB |
Output is correct |
20 |
Correct |
59 ms |
24740 KB |
Output is correct |
21 |
Correct |
69 ms |
24740 KB |
Output is correct |
22 |
Correct |
63 ms |
24740 KB |
Output is correct |
23 |
Correct |
46 ms |
24740 KB |
Output is correct |
24 |
Correct |
63 ms |
24740 KB |
Output is correct |
25 |
Correct |
66 ms |
24740 KB |
Output is correct |
26 |
Correct |
49 ms |
24740 KB |
Output is correct |
27 |
Correct |
169 ms |
28568 KB |
Output is correct |
28 |
Correct |
173 ms |
28436 KB |
Output is correct |
29 |
Correct |
176 ms |
28304 KB |
Output is correct |
30 |
Correct |
173 ms |
28436 KB |
Output is correct |
31 |
Correct |
136 ms |
28436 KB |
Output is correct |
32 |
Correct |
106 ms |
27776 KB |
Output is correct |
33 |
Correct |
103 ms |
27776 KB |
Output is correct |
34 |
Correct |
119 ms |
27776 KB |
Output is correct |
35 |
Correct |
123 ms |
27776 KB |
Output is correct |
36 |
Correct |
76 ms |
27776 KB |
Output is correct |
37 |
Correct |
133 ms |
27776 KB |
Output is correct |
38 |
Correct |
276 ms |
37148 KB |
Output is correct |
39 |
Correct |
193 ms |
40184 KB |
Output is correct |
40 |
Correct |
199 ms |
33980 KB |
Output is correct |
41 |
Correct |
246 ms |
40184 KB |
Output is correct |
42 |
Correct |
116 ms |
27776 KB |
Output is correct |
43 |
Correct |
133 ms |
27776 KB |
Output is correct |
44 |
Correct |
196 ms |
30812 KB |
Output is correct |
45 |
Correct |
146 ms |
30812 KB |
Output is correct |
46 |
Correct |
149 ms |
30812 KB |
Output is correct |
47 |
Correct |
103 ms |
27776 KB |
Output is correct |
48 |
Correct |
129 ms |
27776 KB |
Output is correct |
49 |
Correct |
159 ms |
30812 KB |
Output is correct |
50 |
Correct |
219 ms |
30812 KB |
Output is correct |
51 |
Correct |
186 ms |
30812 KB |
Output is correct |
52 |
Correct |
149 ms |
30812 KB |
Output is correct |
53 |
Correct |
209 ms |
33980 KB |
Output is correct |
54 |
Correct |
196 ms |
37148 KB |
Output is correct |
55 |
Correct |
189 ms |
33980 KB |
Output is correct |