oj.uz

답안 #319396

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
319396 2020-11-05T08:05:46 Z arnold518 Long Mansion (JOI17_long_mansion) C++14
25 / 100
 3000 ms 55280 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 5e5;
const int INF = 987654321;

int N, QQ;
int C[MAXN+10];
vector<int> A[MAXN+10];

int L[MAXN+10], R[MAXN+10];
int P[MAXN+10], Q[MAXN+10];

struct SEG1
{
	int tree[MAXN*4+10];
	void update(int node, int tl, int tr, int p, int v)
	{
		if(tl==tr)
		{
			tree[node]=v;
			return;
		}
		int mid=tl+tr>>1;
		if(p<=mid) update(node*2, tl, mid, p, v);
		else update(node*2+1, mid+1, tr, p, v);
		tree[node]=max(tree[node*2], tree[node*2+1]);
	}
	int query1(int node, int tl, int tr, int l, int r)
	{
		int mid=tl+tr>>1;
		if(l<=tl && tr<=r) return tree[node];
		if(r<tl || tr<l) return -INF;
		return max(query1(node*2, tl, mid, l, r), query1(node*2+1, mid+1, tr, l, r));
	}
}seg1, seg4;

struct SEG2
{
	int tree[MAXN*4+10];
	void update(int node, int tl, int tr, int p, int v)
	{
		if(tl==tr)
		{
			tree[node]=v;
			return;
		}
		int mid=tl+tr>>1;
		if(p<=mid) update(node*2, tl, mid, p, v);
		else update(node*2+1, mid+1, tr, p, v);
		tree[node]=min(tree[node*2], tree[node*2+1]);
	}
	int query1(int node, int tl, int tr, int l, int r)
	{
		int mid=tl+tr>>1;
		if(l<=tl && tr<=r) return tree[node];
		if(r<tl || tr<l) return INF;
		return min(query1(node*2, tl, mid, l, r), query1(node*2+1, mid+1, tr, l, r));
	}
}seg2, seg3;

int main()
{
	scanf("%d", &N);
	for(int i=1; i<N; i++) scanf("%d", &C[i]);
	for(int i=1; i<=N; i++) A[i].push_back(0);
	for(int i=1; i<=N; i++)
	{
		int t;
		scanf("%d", &t);
		while(t--)
		{
			int p;
			scanf("%d", &p);
			A[p].push_back(i);
		}
	}
	for(int i=1; i<=N; i++) A[i].push_back(N+1);

	for(int i=1; i<N; i++)
	{
		int col=C[i];
		L[i]=*(--upper_bound(A[col].begin(), A[col].end(), i));
		R[i]=*lower_bound(A[col].begin(), A[col].end(), i+1);
	}

	L[0]=0; R[0]=N+1;
	L[N]=0; R[N]=N+1;

	for(int i=1; i<=N; i++)
	{
		seg1.update(1, 1, N, i, R[i-1]);
	}

	for(int i=1; i<N; i++)
	{
		if(seg1.query1(1, 1, N, L[i]+1, i)<=i)
		{
			P[i]=N+1;
		}
		else
		{
			int lo=L[i], hi=i;
			while(lo+1<hi)
			{
				int mid=lo+hi>>1;
				if(seg1.query1(1, 1, N, L[i]+1, mid)>i) hi=mid;
				else lo=mid;
			}
			P[i]=hi;
		}
		seg3.update(1, 1, N, i, P[i]);
	}

	for(int i=1; i<N; i++)
	{
		seg2.update(1, 1, N, i, L[i]);
	}

	for(int i=2; i<=N; i++)
	{
		if(seg2.query1(1, 1, N, i, R[i-1]-1)>=i)
		{
			Q[i]=0;
		}
		else
		{
			int lo=i, hi=R[i-1];
			while(lo+1<hi)
			{
				int mid=lo+hi>>1;
				if(seg2.query1(1, 1, N, mid, R[i-1]-1)<i) lo=mid;
				else hi=mid;
			}
			Q[i]=lo;
		}
		seg4.update(1, 1, N, i-1, Q[i]);
	}

	//for(int i=1; i<N; i++) printf("%d ", L[i]); printf(" : L\n");
	//for(int i=1; i<N; i++) printf("%d ", R[i]); printf(" : R\n");
	//for(int i=1; i<N; i++) printf("%d ", P[i]); printf(" : P\n");
	//for(int i=2; i<=N; i++) printf("%d ", Q[i]); printf(" : Q\n");

	scanf("%d", &QQ);
	while(QQ--)
	{
		int x, y;
		scanf("%d%d", &x, &y);
		if(x<y)
		{
			if(seg3.query1(1, 1, N, x, y-1)<=x) printf("NO\n");
			else printf("YES\n");
		}
		else
		{
			if(seg4.query1(1, 1, N, y, x-1)>=x) printf("NO\n");
			else printf("YES\n");
		}
	}
}

Compilation message

long_mansion.cpp: In member function 'void SEG1::update(int, int, int, int, int)':
long_mansion.cpp:28:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   28 |   int mid=tl+tr>>1;
      |           ~~^~~
long_mansion.cpp: In member function 'int SEG1::query1(int, int, int, int, int)':
long_mansion.cpp:35:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   35 |   int mid=tl+tr>>1;
      |           ~~^~~
long_mansion.cpp: In member function 'void SEG2::update(int, int, int, int, int)':
long_mansion.cpp:52:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   52 |   int mid=tl+tr>>1;
      |           ~~^~~
long_mansion.cpp: In member function 'int SEG2::query1(int, int, int, int, int)':
long_mansion.cpp:59:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   59 |   int mid=tl+tr>>1;
      |           ~~^~~
long_mansion.cpp: In function 'int main()':
long_mansion.cpp:110:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  110 |     int mid=lo+hi>>1;
      |             ~~^~~
long_mansion.cpp:135:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
  135 |     int mid=lo+hi>>1;
      |             ~~^~~
long_mansion.cpp:68:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   68 |  scanf("%d", &N);
      |  ~~~~~^~~~~~~~~~
long_mansion.cpp:69:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   69 |  for(int i=1; i<N; i++) scanf("%d", &C[i]);
      |                         ~~~~~^~~~~~~~~~~~~
long_mansion.cpp:74:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   74 |   scanf("%d", &t);
      |   ~~~~~^~~~~~~~~~
long_mansion.cpp:78:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   78 |    scanf("%d", &p);
      |    ~~~~~^~~~~~~~~~
long_mansion.cpp:149:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  149 |  scanf("%d", &QQ);
      |  ~~~~~^~~~~~~~~~~
long_mansion.cpp:153:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  153 |   scanf("%d%d", &x, &y);
      |   ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 12556 KB Output is correct
2 Correct 17 ms 12656 KB Output is correct
3 Correct 18 ms 12780 KB Output is correct
4 Correct 14 ms 12544 KB Output is correct
5 Correct 14 ms 12396 KB Output is correct
6 Correct 14 ms 12392 KB Output is correct
7 Correct 17 ms 12396 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 12556 KB Output is correct
2 Correct 17 ms 12656 KB Output is correct
3 Correct 18 ms 12780 KB Output is correct
4 Correct 14 ms 12544 KB Output is correct
5 Correct 14 ms 12396 KB Output is correct
6 Correct 14 ms 12392 KB Output is correct
7 Correct 17 ms 12396 KB Output is correct
8 Correct 279 ms 18276 KB Output is correct
9 Correct 276 ms 18276 KB Output is correct
10 Correct 289 ms 18660 KB Output is correct
11 Correct 334 ms 19300 KB Output is correct
12 Correct 266 ms 17892 KB Output is correct
13 Correct 243 ms 18404 KB Output is correct
14 Correct 242 ms 18404 KB Output is correct
15 Correct 239 ms 18556 KB Output is correct
16 Correct 225 ms 18280 KB Output is correct
17 Correct 238 ms 18404 KB Output is correct
18 Correct 245 ms 18580 KB Output is correct
19 Correct 249 ms 18532 KB Output is correct
20 Correct 232 ms 18404 KB Output is correct
21 Correct 224 ms 18276 KB Output is correct
22 Correct 253 ms 18460 KB Output is correct
23 Correct 225 ms 18148 KB Output is correct
24 Correct 220 ms 18304 KB Output is correct
25 Correct 224 ms 18192 KB Output is correct
26 Correct 224 ms 18148 KB Output is correct

Subtask #3
15.0 / 15.0

# 결과 실행 시간 메모리 Grader output
1 Correct 674 ms 32920 KB Output is correct
2 Correct 645 ms 32284 KB Output is correct
3 Correct 631 ms 32032 KB Output is correct
4 Correct 660 ms 32632 KB Output is correct
5 Correct 640 ms 32600 KB Output is correct
6 Correct 492 ms 30952 KB Output is correct
7 Correct 479 ms 30740 KB Output is correct
8 Correct 480 ms 30564 KB Output is correct
9 Correct 467 ms 30820 KB Output is correct
10 Correct 468 ms 30620 KB Output is correct
11 Correct 473 ms 30564 KB Output is correct

Subtask #4
0 / 75.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 12556 KB Output is correct
2 Correct 17 ms 12656 KB Output is correct
3 Correct 18 ms 12780 KB Output is correct
4 Correct 14 ms 12544 KB Output is correct
5 Correct 14 ms 12396 KB Output is correct
6 Correct 14 ms 12392 KB Output is correct
7 Correct 17 ms 12396 KB Output is correct
8 Correct 279 ms 18276 KB Output is correct
9 Correct 276 ms 18276 KB Output is correct
10 Correct 289 ms 18660 KB Output is correct
11 Correct 334 ms 19300 KB Output is correct
12 Correct 266 ms 17892 KB Output is correct
13 Correct 243 ms 18404 KB Output is correct
14 Correct 242 ms 18404 KB Output is correct
15 Correct 239 ms 18556 KB Output is correct
16 Correct 225 ms 18280 KB Output is correct
17 Correct 238 ms 18404 KB Output is correct
18 Correct 245 ms 18580 KB Output is correct
19 Correct 249 ms 18532 KB Output is correct
20 Correct 232 ms 18404 KB Output is correct
21 Correct 224 ms 18276 KB Output is correct
22 Correct 253 ms 18460 KB Output is correct
23 Correct 225 ms 18148 KB Output is correct
24 Correct 220 ms 18304 KB Output is correct
25 Correct 224 ms 18192 KB Output is correct
26 Correct 224 ms 18148 KB Output is correct
27 Correct 674 ms 32920 KB Output is correct
28 Correct 645 ms 32284 KB Output is correct
29 Correct 631 ms 32032 KB Output is correct
30 Correct 660 ms 32632 KB Output is correct
31 Correct 640 ms 32600 KB Output is correct
32 Correct 492 ms 30952 KB Output is correct
33 Correct 479 ms 30740 KB Output is correct
34 Correct 480 ms 30564 KB Output is correct
35 Correct 467 ms 30820 KB Output is correct
36 Correct 468 ms 30620 KB Output is correct
37 Correct 473 ms 30564 KB Output is correct
38 Execution timed out 3051 ms 55280 KB Time limit exceeded
39 Halted 0 ms 0 KB -