oj.uz

Submission #125383

# Submission time Handle Problem Language Result Execution time Memory
125383 2019-07-05T07:17:31 Z khsoo01 Long Mansion (JOI17_long_mansion) C++11
100 / 100
 447 ms 45136 KB 
#include<bits/stdc++.h>
using namespace std;

const int N = 500005, L = 524288;

int n, q, req[N], lst[N], rb[N], l[N], r[N];

vector<int> key[N];

struct segtree {
	int v[2*L];
	void upd (int P, int V) {
		P += L;
		v[P] = V;
		P /= 2;
		while(P) {
			v[P] = min(v[2*P], v[2*P+1]);
			P /= 2;
		}
	}
	int bound (int P, int V) {
		P += L;
		while(P & (P+1)) {
			if(v[P] < V) break;
			P = (P+1)/2;
		}
		while(P < L) {
			if(v[2*P] < V) P = 2*P;
			else P = 2*P+1;
		}
		return P - L;
	}
} seg;

int main()
{
	scanf("%d",&n);
	for(int i=1;i<n;i++) {
		scanf("%d",&req[i]);
	}
	for(int i=1;i<=n;i++) {
		int M, T;
		scanf("%d",&M);
		while(M--) {
			scanf("%d",&T);
			key[i].push_back(T);
		}
	}
	for(int i=1;i<=n;i++) {
		seg.upd(i, lst[req[i-1]]);
		for(auto &T : key[i]) lst[T] = i;
	}
	fill(lst, lst+1+n, n+1);
	for(int i=n;i>=1;i--) {
		rb[i] = lst[req[i]];
		for(auto &T : key[i]) lst[T] = i;
	}
	vector<int> S;
	for(int i=1;i<=n;i++) {
		int L = i, R = seg.bound(i+1, L) - 1;
		while(!S.empty()) {
			if(rb[L-1] > R) break;
			L = S.back();
			R = seg.bound(i+1, L) - 1;
			S.pop_back();
		}
		l[i] = L, r[i] = R;
		S.push_back(L);
	}
	scanf("%d",&q);
	while(q--) {
		int S, E;
		scanf("%d%d",&S,&E);
		puts(l[S] <= E && E <= r[S] ? "YES" : "NO");
	}
}

Compilation message

long_mansion.cpp: In function 'int main()':
long_mansion.cpp:37:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
long_mansion.cpp:39:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&req[i]);
   ~~~~~^~~~~~~~~~~~~~
long_mansion.cpp:43:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&M);
   ~~~~~^~~~~~~~~
long_mansion.cpp:45:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    scanf("%d",&T);
    ~~~~~^~~~~~~~~
long_mansion.cpp:70:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&q);
  ~~~~~^~~~~~~~~
long_mansion.cpp:73:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&S,&E);
   ~~~~~^~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 12280 KB Output is correct
2 Correct 15 ms 12408 KB Output is correct
3 Correct 16 ms 12408 KB Output is correct
4 Correct 15 ms 12408 KB Output is correct
5 Correct 16 ms 12280 KB Output is correct
6 Correct 15 ms 12280 KB Output is correct
7 Correct 15 ms 12292 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 12280 KB Output is correct
2 Correct 15 ms 12408 KB Output is correct
3 Correct 16 ms 12408 KB Output is correct
4 Correct 15 ms 12408 KB Output is correct
5 Correct 16 ms 12280 KB Output is correct
6 Correct 15 ms 12280 KB Output is correct
7 Correct 15 ms 12292 KB Output is correct
8 Correct 142 ms 13780 KB Output is correct
9 Correct 141 ms 13864 KB Output is correct
10 Correct 144 ms 14044 KB Output is correct
11 Correct 142 ms 14200 KB Output is correct
12 Correct 133 ms 14060 KB Output is correct
13 Correct 137 ms 13944 KB Output is correct
14 Correct 139 ms 14072 KB Output is correct
15 Correct 136 ms 14072 KB Output is correct
16 Correct 132 ms 14300 KB Output is correct
17 Correct 138 ms 14048 KB Output is correct
18 Correct 140 ms 14072 KB Output is correct
19 Correct 137 ms 14072 KB Output is correct
20 Correct 135 ms 14168 KB Output is correct
21 Correct 131 ms 14364 KB Output is correct
22 Correct 138 ms 14072 KB Output is correct
23 Correct 145 ms 13944 KB Output is correct
24 Correct 143 ms 13832 KB Output is correct
25 Correct 141 ms 13816 KB Output is correct
26 Correct 141 ms 13800 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 272 ms 20316 KB Output is correct
2 Correct 269 ms 20344 KB Output is correct
3 Correct 270 ms 20384 KB Output is correct
4 Correct 272 ms 20344 KB Output is correct
5 Correct 276 ms 20356 KB Output is correct
6 Correct 227 ms 19960 KB Output is correct
7 Correct 218 ms 19960 KB Output is correct
8 Correct 227 ms 20208 KB Output is correct
9 Correct 222 ms 20088 KB Output is correct
10 Correct 217 ms 20088 KB Output is correct
11 Correct 219 ms 20088 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 12280 KB Output is correct
2 Correct 15 ms 12408 KB Output is correct
3 Correct 16 ms 12408 KB Output is correct
4 Correct 15 ms 12408 KB Output is correct
5 Correct 16 ms 12280 KB Output is correct
6 Correct 15 ms 12280 KB Output is correct
7 Correct 15 ms 12292 KB Output is correct
8 Correct 142 ms 13780 KB Output is correct
9 Correct 141 ms 13864 KB Output is correct
10 Correct 144 ms 14044 KB Output is correct
11 Correct 142 ms 14200 KB Output is correct
12 Correct 133 ms 14060 KB Output is correct
13 Correct 137 ms 13944 KB Output is correct
14 Correct 139 ms 14072 KB Output is correct
15 Correct 136 ms 14072 KB Output is correct
16 Correct 132 ms 14300 KB Output is correct
17 Correct 138 ms 14048 KB Output is correct
18 Correct 140 ms 14072 KB Output is correct
19 Correct 137 ms 14072 KB Output is correct
20 Correct 135 ms 14168 KB Output is correct
21 Correct 131 ms 14364 KB Output is correct
22 Correct 138 ms 14072 KB Output is correct
23 Correct 145 ms 13944 KB Output is correct
24 Correct 143 ms 13832 KB Output is correct
25 Correct 141 ms 13816 KB Output is correct
26 Correct 141 ms 13800 KB Output is correct
27 Correct 272 ms 20316 KB Output is correct
28 Correct 269 ms 20344 KB Output is correct
29 Correct 270 ms 20384 KB Output is correct
30 Correct 272 ms 20344 KB Output is correct
31 Correct 276 ms 20356 KB Output is correct
32 Correct 227 ms 19960 KB Output is correct
33 Correct 218 ms 19960 KB Output is correct
34 Correct 227 ms 20208 KB Output is correct
35 Correct 222 ms 20088 KB Output is correct
36 Correct 217 ms 20088 KB Output is correct
37 Correct 219 ms 20088 KB Output is correct
38 Correct 424 ms 38848 KB Output is correct
39 Correct 441 ms 45136 KB Output is correct
40 Correct 390 ms 32612 KB Output is correct
41 Correct 447 ms 43304 KB Output is correct
42 Correct 232 ms 20152 KB Output is correct
43 Correct 232 ms 19832 KB Output is correct
44 Correct 328 ms 25692 KB Output is correct
45 Correct 344 ms 25720 KB Output is correct
46 Correct 333 ms 25720 KB Output is correct
47 Correct 243 ms 19832 KB Output is correct
48 Correct 238 ms 19832 KB Output is correct
49 Correct 334 ms 25596 KB Output is correct
50 Correct 361 ms 25664 KB Output is correct
51 Correct 347 ms 25864 KB Output is correct
52 Correct 292 ms 25968 KB Output is correct
53 Correct 379 ms 32048 KB Output is correct
54 Correct 436 ms 38012 KB Output is correct
55 Correct 362 ms 31952 KB Output is correct