oj.uz

답안 #125366

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
125366 2019-07-05T07:04:12 Z 이온조(#3059) Long Mansion (JOI17_long_mansion) C++14
100 / 100
 778 ms 108960 KB 
#include <bits/stdc++.h>
using namespace std;
using pii = pair<int, int>;
using tiii = tuple<int, int, int>;

struct minseg {
	vector<int> T;
	void init(vector<int> &A, int idx, int s, int e) {
		if(s == e) {
			T[idx] = A[s];
			return;
		}
		int m = s+e >> 1;
		init(A, idx*2, s, m);
		init(A, idx*2+1, m+1, e);
		T[idx] = min(T[idx*2], T[idx*2+1]);
	}
	// 구간 [l, r]에서 v 이하이면서 가장 오른쪽에 있는 원소 위치 리턴
	int find(int idx, int s, int e, int l, int r, int v) {
		if(r < s || e < l || T[idx] > v) return -1;
		if(s == e) return s;
		int m = s+e >> 1;
		int tmp = find(idx*2+1, m+1, e, l, r, v);
		if(tmp != -1) return tmp;
		return find(idx*2, s, m, l, r, v);
	}
	minseg(int sz) {
		T.resize(sz*4);
	}
};

struct maxseg {
	vector<int> T;
	void init(vector<int> &A, int idx, int s, int e) {
		if(s == e) {
			T[idx] = A[s];
			return;
		}
		int m = s+e >> 1;
		init(A, idx*2, s, m);
		init(A, idx*2+1, m+1, e);
		T[idx] = max(T[idx*2], T[idx*2+1]);
	}
	// 구간 [l, r]에서 v 이상이면서 가장 왼쪽에 있는 원소 위치 리턴
	int find(int idx, int s, int e, int l, int r, int v) {
		if(r < s || e < l || T[idx] < v) return -1;
		if(s == e) return s;
		int m = s+e >> 1;
		int tmp = find(idx*2, s, m, l, r, v);
		if(tmp != -1) return tmp;
		return find(idx*2+1, m+1, e, l, r, v);
	}
	maxseg(int sz) {
		T.resize(sz*4);
	}
};

int LM[500009], RM[500009];
int C[500009], B[500009], L[500009], R[500009], LE[500009], RE[500009];
vector<int> A[500009], P[500009];

int main() {
	int N; scanf("%d",&N);
	for(int i=1; i<N; i++) scanf("%d", &C[i]);
	for(int i=1; i<=N; i++) P[i].push_back(0);
	for(int i=1; i<=N; i++) {
		scanf("%d",&B[i]);
		for(int j=0; j<B[i]; j++) {
			int foo; scanf("%d",&foo);
			P[foo].push_back(i);
			A[i].push_back(foo);
		}
	}
	for(int i=1; i<=N; i++) P[i].push_back(N+1);
	R[0] = N+1; L[N] = 0;
	for(int i=1; i<N; i++) {
		L[i] = *(--upper_bound(P[C[i]].begin(), P[C[i]].end(), i));
		R[i] = *upper_bound(P[C[i]].begin(), P[C[i]].end(), i);
	}
	minseg LG(N+1); maxseg RG(N+1);
	vector<int> LS = {-1}, RS;
	for(int i=1; i<=N; i++) LS.push_back(L[i]);
	for(int i=0; i<N; i++) RS.push_back(R[i]);
	LG.init(LS, 1, 1, N); RG.init(RS, 1, 0, N-1);

	for(int i=0; i<N; i++) {
		int s = i+1, e = LG.find(1, 1, N, i+1, R[i]-1, i);
		// printf("LEFT INTERVAL: [%d, %d]\n", s, e);
		LE[s] = e;
	}
	for(int i=1; i<=N; i++) {
		int s = RG.find(1, 0, N-1, L[i], i-1, i+1) + 1, e = i;
		// printf("RIGHT INTERVAL: [%d, %d]\n", s, e);
		RE[e] = s;
	}

	for(int i=1; i<=N; i++) LM[i] = 0, RM[i] = N+1;

	priority_queue<pii> LPQ, RPQ;
	for(int i=1; i<=N; i++) {
		while(LPQ.size() && LPQ.top().second < i) LPQ.pop();
		if(LE[i] > 0) LPQ.push({i, LE[i]});
		if(LPQ.size()) LM[i] = LPQ.top().first;
	}
	for(int i=N; i>=1; i--) {
		while(RPQ.size() && i < RPQ.top().second) RPQ.pop();
		if(RE[i] > 0) RPQ.push({-i, RE[i]});
		if(RPQ.size()) RM[i] = -RPQ.top().first;
	}

	for(int i=1; i<=N; i++) {
		// printf("i: %d, LM: %d, RM: %d\n", i, LM[i], RM[i]);
	}

	int Q; scanf("%d",&Q);
	while(Q--) {
		int X, Y; scanf("%d%d",&X,&Y);
		if(LM[X] <= Y && Y <= RM[X]) puts("YES");
		else puts("NO");
	}
	return 0;
}

Compilation message

long_mansion.cpp: In member function 'void minseg::init(std::vector<int>&, int, int, int)':
long_mansion.cpp:13:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int m = s+e >> 1;
           ~^~
long_mansion.cpp: In member function 'int minseg::find(int, int, int, int, int, int)':
long_mansion.cpp:22:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int m = s+e >> 1;
           ~^~
long_mansion.cpp: In member function 'void maxseg::init(std::vector<int>&, int, int, int)':
long_mansion.cpp:39:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int m = s+e >> 1;
           ~^~
long_mansion.cpp: In member function 'int maxseg::find(int, int, int, int, int, int)':
long_mansion.cpp:48:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   int m = s+e >> 1;
           ~^~
long_mansion.cpp: In function 'int main()':
long_mansion.cpp:63:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int N; scanf("%d",&N);
         ~~~~~^~~~~~~~~
long_mansion.cpp:64:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for(int i=1; i<N; i++) scanf("%d", &C[i]);
                         ~~~~~^~~~~~~~~~~~~
long_mansion.cpp:67:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&B[i]);
   ~~~~~^~~~~~~~~~~~
long_mansion.cpp:69:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
    int foo; scanf("%d",&foo);
             ~~~~~^~~~~~~~~~~
long_mansion.cpp:115:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  int Q; scanf("%d",&Q);
         ~~~~~^~~~~~~~~
long_mansion.cpp:117:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   int X, Y; scanf("%d%d",&X,&Y);
             ~~~~~^~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 24312 KB Output is correct
2 Correct 28 ms 24356 KB Output is correct
3 Correct 29 ms 24612 KB Output is correct
4 Correct 27 ms 24272 KB Output is correct
5 Correct 27 ms 24204 KB Output is correct
6 Correct 27 ms 24172 KB Output is correct
7 Correct 26 ms 24312 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 24312 KB Output is correct
2 Correct 28 ms 24356 KB Output is correct
3 Correct 29 ms 24612 KB Output is correct
4 Correct 27 ms 24272 KB Output is correct
5 Correct 27 ms 24204 KB Output is correct
6 Correct 27 ms 24172 KB Output is correct
7 Correct 26 ms 24312 KB Output is correct
8 Correct 156 ms 30236 KB Output is correct
9 Correct 157 ms 30080 KB Output is correct
10 Correct 159 ms 30572 KB Output is correct
11 Correct 158 ms 31096 KB Output is correct
12 Correct 145 ms 29536 KB Output is correct
13 Correct 154 ms 30264 KB Output is correct
14 Correct 151 ms 30264 KB Output is correct
15 Correct 150 ms 30396 KB Output is correct
16 Correct 153 ms 30024 KB Output is correct
17 Correct 150 ms 30200 KB Output is correct
18 Correct 152 ms 30228 KB Output is correct
19 Correct 149 ms 30200 KB Output is correct
20 Correct 151 ms 30260 KB Output is correct
21 Correct 146 ms 29996 KB Output is correct
22 Correct 149 ms 30096 KB Output is correct
23 Correct 151 ms 30004 KB Output is correct
24 Correct 151 ms 30012 KB Output is correct
25 Correct 152 ms 30064 KB Output is correct
26 Correct 152 ms 30072 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 340 ms 47968 KB Output is correct
2 Correct 333 ms 47400 KB Output is correct
3 Correct 326 ms 47224 KB Output is correct
4 Correct 341 ms 47632 KB Output is correct
5 Correct 335 ms 47684 KB Output is correct
6 Correct 282 ms 46484 KB Output is correct
7 Correct 269 ms 46196 KB Output is correct
8 Correct 270 ms 46164 KB Output is correct
9 Correct 276 ms 46320 KB Output is correct
10 Correct 266 ms 46296 KB Output is correct
11 Correct 268 ms 46256 KB Output is correct

Subtask #4
75.0 / 75.0

# 결과 실행 시간 메모리 Grader output
1 Correct 30 ms 24312 KB Output is correct
2 Correct 28 ms 24356 KB Output is correct
3 Correct 29 ms 24612 KB Output is correct
4 Correct 27 ms 24272 KB Output is correct
5 Correct 27 ms 24204 KB Output is correct
6 Correct 27 ms 24172 KB Output is correct
7 Correct 26 ms 24312 KB Output is correct
8 Correct 156 ms 30236 KB Output is correct
9 Correct 157 ms 30080 KB Output is correct
10 Correct 159 ms 30572 KB Output is correct
11 Correct 158 ms 31096 KB Output is correct
12 Correct 145 ms 29536 KB Output is correct
13 Correct 154 ms 30264 KB Output is correct
14 Correct 151 ms 30264 KB Output is correct
15 Correct 150 ms 30396 KB Output is correct
16 Correct 153 ms 30024 KB Output is correct
17 Correct 150 ms 30200 KB Output is correct
18 Correct 152 ms 30228 KB Output is correct
19 Correct 149 ms 30200 KB Output is correct
20 Correct 151 ms 30260 KB Output is correct
21 Correct 146 ms 29996 KB Output is correct
22 Correct 149 ms 30096 KB Output is correct
23 Correct 151 ms 30004 KB Output is correct
24 Correct 151 ms 30012 KB Output is correct
25 Correct 152 ms 30064 KB Output is correct
26 Correct 152 ms 30072 KB Output is correct
27 Correct 340 ms 47968 KB Output is correct
28 Correct 333 ms 47400 KB Output is correct
29 Correct 326 ms 47224 KB Output is correct
30 Correct 341 ms 47632 KB Output is correct
31 Correct 335 ms 47684 KB Output is correct
32 Correct 282 ms 46484 KB Output is correct
33 Correct 269 ms 46196 KB Output is correct
34 Correct 270 ms 46164 KB Output is correct
35 Correct 276 ms 46320 KB Output is correct
36 Correct 266 ms 46296 KB Output is correct
37 Correct 268 ms 46256 KB Output is correct
38 Correct 754 ms 94548 KB Output is correct
39 Correct 778 ms 108960 KB Output is correct
40 Correct 604 ms 79544 KB Output is correct
41 Correct 688 ms 100784 KB Output is correct
42 Correct 321 ms 46920 KB Output is correct
43 Correct 302 ms 47248 KB Output is correct
44 Correct 499 ms 61280 KB Output is correct
45 Correct 511 ms 61204 KB Output is correct
46 Correct 508 ms 60880 KB Output is correct
47 Correct 317 ms 47228 KB Output is correct
48 Correct 344 ms 47500 KB Output is correct
49 Correct 472 ms 61712 KB Output is correct
50 Correct 481 ms 61228 KB Output is correct
51 Correct 514 ms 60504 KB Output is correct
52 Correct 418 ms 61112 KB Output is correct
53 Correct 542 ms 76032 KB Output is correct
54 Correct 697 ms 88672 KB Output is correct
55 Correct 548 ms 75196 KB Output is correct