oj.uz

Submission #125379

# Submission time Handle Problem Language Result Execution time Memory
125379 2019-07-05T07:12:10 Z khsoo01 Long Mansion (JOI17_long_mansion) C++11
100 / 100
 450 ms 45176 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()) {
			int C = S.back();
			if(rb[L-1] > R) break;
			S.pop_back();
			L = C;
			R = seg.bound(i+1, L) - 1;
		}
		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:71:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&q);
  ~~~~~^~~~~~~~~
long_mansion.cpp:74:8: 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 16 ms 12280 KB Output is correct
2 Correct 16 ms 12408 KB Output is correct
3 Correct 18 ms 12664 KB Output is correct
4 Correct 18 ms 12280 KB Output is correct
5 Correct 15 ms 12280 KB Output is correct
6 Correct 16 ms 12280 KB Output is correct
7 Correct 15 ms 12280 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 12280 KB Output is correct
2 Correct 16 ms 12408 KB Output is correct
3 Correct 18 ms 12664 KB Output is correct
4 Correct 18 ms 12280 KB Output is correct
5 Correct 15 ms 12280 KB Output is correct
6 Correct 16 ms 12280 KB Output is correct
7 Correct 15 ms 12280 KB Output is correct
8 Correct 143 ms 13816 KB Output is correct
9 Correct 145 ms 13856 KB Output is correct
10 Correct 147 ms 14072 KB Output is correct
11 Correct 144 ms 14328 KB Output is correct
12 Correct 141 ms 13944 KB Output is correct
13 Correct 138 ms 13944 KB Output is correct
14 Correct 139 ms 13944 KB Output is correct
15 Correct 137 ms 14072 KB Output is correct
16 Correct 132 ms 14312 KB Output is correct
17 Correct 138 ms 14072 KB Output is correct
18 Correct 139 ms 14152 KB Output is correct
19 Correct 140 ms 14072 KB Output is correct
20 Correct 134 ms 14272 KB Output is correct
21 Correct 130 ms 14220 KB Output is correct
22 Correct 139 ms 14292 KB Output is correct
23 Correct 140 ms 13816 KB Output is correct
24 Correct 139 ms 13920 KB Output is correct
25 Correct 140 ms 13944 KB Output is correct
26 Correct 140 ms 13820 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 275 ms 20336 KB Output is correct
2 Correct 272 ms 20320 KB Output is correct
3 Correct 268 ms 20344 KB Output is correct
4 Correct 278 ms 20504 KB Output is correct
5 Correct 271 ms 20344 KB Output is correct
6 Correct 249 ms 19944 KB Output is correct
7 Correct 240 ms 19960 KB Output is correct
8 Correct 219 ms 19960 KB Output is correct
9 Correct 219 ms 20100 KB Output is correct
10 Correct 219 ms 20000 KB Output is correct
11 Correct 235 ms 20088 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 12280 KB Output is correct
2 Correct 16 ms 12408 KB Output is correct
3 Correct 18 ms 12664 KB Output is correct
4 Correct 18 ms 12280 KB Output is correct
5 Correct 15 ms 12280 KB Output is correct
6 Correct 16 ms 12280 KB Output is correct
7 Correct 15 ms 12280 KB Output is correct
8 Correct 143 ms 13816 KB Output is correct
9 Correct 145 ms 13856 KB Output is correct
10 Correct 147 ms 14072 KB Output is correct
11 Correct 144 ms 14328 KB Output is correct
12 Correct 141 ms 13944 KB Output is correct
13 Correct 138 ms 13944 KB Output is correct
14 Correct 139 ms 13944 KB Output is correct
15 Correct 137 ms 14072 KB Output is correct
16 Correct 132 ms 14312 KB Output is correct
17 Correct 138 ms 14072 KB Output is correct
18 Correct 139 ms 14152 KB Output is correct
19 Correct 140 ms 14072 KB Output is correct
20 Correct 134 ms 14272 KB Output is correct
21 Correct 130 ms 14220 KB Output is correct
22 Correct 139 ms 14292 KB Output is correct
23 Correct 140 ms 13816 KB Output is correct
24 Correct 139 ms 13920 KB Output is correct
25 Correct 140 ms 13944 KB Output is correct
26 Correct 140 ms 13820 KB Output is correct
27 Correct 275 ms 20336 KB Output is correct
28 Correct 272 ms 20320 KB Output is correct
29 Correct 268 ms 20344 KB Output is correct
30 Correct 278 ms 20504 KB Output is correct
31 Correct 271 ms 20344 KB Output is correct
32 Correct 249 ms 19944 KB Output is correct
33 Correct 240 ms 19960 KB Output is correct
34 Correct 219 ms 19960 KB Output is correct
35 Correct 219 ms 20100 KB Output is correct
36 Correct 219 ms 20000 KB Output is correct
37 Correct 235 ms 20088 KB Output is correct
38 Correct 429 ms 38968 KB Output is correct
39 Correct 445 ms 45176 KB Output is correct
40 Correct 389 ms 32788 KB Output is correct
41 Correct 450 ms 43420 KB Output is correct
42 Correct 237 ms 20088 KB Output is correct
43 Correct 234 ms 19888 KB Output is correct
44 Correct 327 ms 25720 KB Output is correct
45 Correct 331 ms 25728 KB Output is correct
46 Correct 337 ms 25720 KB Output is correct
47 Correct 243 ms 19960 KB Output is correct
48 Correct 236 ms 19832 KB Output is correct
49 Correct 356 ms 25720 KB Output is correct
50 Correct 336 ms 25592 KB Output is correct
51 Correct 377 ms 25976 KB Output is correct
52 Correct 299 ms 26020 KB Output is correct
53 Correct 376 ms 32084 KB Output is correct
54 Correct 434 ms 38112 KB Output is correct
55 Correct 372 ms 31984 KB Output is correct