oj.uz

Submission #319401

# Submission time Handle Problem Language Result Execution time Memory
319401 2020-11-05T08:17:46 Z arnold518 Long Mansion (JOI17_long_mansion) C++14
100 / 100
 1573 ms 70080 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));
	}
	int query2(int node, int tl, int tr, int l, int r, int p)
	{
		if(r<tl || tr<l) return -1;
		if(tree[node]<=p) return -1;
		if(tl==tr) return tl;
		int mid=tl+tr>>1;
		int t=query2(node*2, tl, mid, l, r, p);
		if(t!=-1) return t;
		t=query2(node*2+1, mid+1, tr, l, r, p);
		if(t!=-1) return t;
		return -1;
	}
}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));
	}
	int query2(int node, int tl, int tr, int l, int r, int p)
	{
		if(r<tl || tr<l) return -1;
		if(tree[node]>=p) return -1;
		if(tl==tr) return tl;
		int mid=tl+tr>>1;
		int t=query2(node*2+1, mid+1, tr, l, r, p);
		if(t!=-1) return t;
		t=query2(node*2, tl, mid, l, r, p);
		if(t!=-1) return t;
		return -1;
	}
}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
		{
			P[i]=seg1.query2(1, 1, N, L[i]+1, i, i);
		}
		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
		{
			Q[i]=seg2.query2(1, 1, N, i, R[i-1]-1, i);
		}
		seg4.update(1, 1, N, i-1, Q[i]);
	}

	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 'int SEG1::query2(int, int, int, int, int, int)':
long_mansion.cpp:45:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   45 |   int mid=tl+tr>>1;
      |           ~~^~~
long_mansion.cpp: In member function 'void SEG2::update(int, int, int, int, int)':
long_mansion.cpp:64:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   64 |   int mid=tl+tr>>1;
      |           ~~^~~
long_mansion.cpp: In member function 'int SEG2::query1(int, int, int, int, int)':
long_mansion.cpp:71:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   71 |   int mid=tl+tr>>1;
      |           ~~^~~
long_mansion.cpp: In member function 'int SEG2::query2(int, int, int, int, int, int)':
long_mansion.cpp:81:13: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   81 |   int mid=tl+tr>>1;
      |           ~~^~~
long_mansion.cpp: In function 'int main()':
long_mansion.cpp:92:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   92 |  scanf("%d", &N);
      |  ~~~~~^~~~~~~~~~
long_mansion.cpp:93:30: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   93 |  for(int i=1; i<N; i++) scanf("%d", &C[i]);
      |                         ~~~~~^~~~~~~~~~~~~
long_mansion.cpp:98:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   98 |   scanf("%d", &t);
      |   ~~~~~^~~~~~~~~~
long_mansion.cpp:102:9: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  102 |    scanf("%d", &p);
      |    ~~~~~^~~~~~~~~~
long_mansion.cpp:154:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  154 |  scanf("%d", &QQ);
      |  ~~~~~^~~~~~~~~~~
long_mansion.cpp:158:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  158 |   scanf("%d%d", &x, &y);
      |   ~~~~~^~~~~~~~~~~~~~~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 12396 KB Output is correct
2 Correct 18 ms 12524 KB Output is correct
3 Correct 17 ms 12780 KB Output is correct
4 Correct 13 ms 12396 KB Output is correct
5 Correct 13 ms 12396 KB Output is correct
6 Correct 13 ms 12396 KB Output is correct
7 Correct 13 ms 12396 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 12396 KB Output is correct
2 Correct 18 ms 12524 KB Output is correct
3 Correct 17 ms 12780 KB Output is correct
4 Correct 13 ms 12396 KB Output is correct
5 Correct 13 ms 12396 KB Output is correct
6 Correct 13 ms 12396 KB Output is correct
7 Correct 13 ms 12396 KB Output is correct
8 Correct 264 ms 18276 KB Output is correct
9 Correct 267 ms 18276 KB Output is correct
10 Correct 281 ms 18788 KB Output is correct
11 Correct 297 ms 19204 KB Output is correct
12 Correct 251 ms 17764 KB Output is correct
13 Correct 237 ms 18404 KB Output is correct
14 Correct 236 ms 18408 KB Output is correct
15 Correct 236 ms 18532 KB Output is correct
16 Correct 219 ms 18276 KB Output is correct
17 Correct 236 ms 18404 KB Output is correct
18 Correct 241 ms 18532 KB Output is correct
19 Correct 259 ms 18532 KB Output is correct
20 Correct 250 ms 18440 KB Output is correct
21 Correct 224 ms 18276 KB Output is correct
22 Correct 242 ms 18532 KB Output is correct
23 Correct 216 ms 18276 KB Output is correct
24 Correct 217 ms 18148 KB Output is correct
25 Correct 220 ms 18268 KB Output is correct
26 Correct 220 ms 18148 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 629 ms 32948 KB Output is correct
2 Correct 619 ms 32144 KB Output is correct
3 Correct 592 ms 32040 KB Output is correct
4 Correct 602 ms 32332 KB Output is correct
5 Correct 627 ms 32628 KB Output is correct
6 Correct 453 ms 30820 KB Output is correct
7 Correct 451 ms 30564 KB Output is correct
8 Correct 450 ms 30564 KB Output is correct
9 Correct 461 ms 30564 KB Output is correct
10 Correct 453 ms 30820 KB Output is correct
11 Correct 453 ms 30564 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 12396 KB Output is correct
2 Correct 18 ms 12524 KB Output is correct
3 Correct 17 ms 12780 KB Output is correct
4 Correct 13 ms 12396 KB Output is correct
5 Correct 13 ms 12396 KB Output is correct
6 Correct 13 ms 12396 KB Output is correct
7 Correct 13 ms 12396 KB Output is correct
8 Correct 264 ms 18276 KB Output is correct
9 Correct 267 ms 18276 KB Output is correct
10 Correct 281 ms 18788 KB Output is correct
11 Correct 297 ms 19204 KB Output is correct
12 Correct 251 ms 17764 KB Output is correct
13 Correct 237 ms 18404 KB Output is correct
14 Correct 236 ms 18408 KB Output is correct
15 Correct 236 ms 18532 KB Output is correct
16 Correct 219 ms 18276 KB Output is correct
17 Correct 236 ms 18404 KB Output is correct
18 Correct 241 ms 18532 KB Output is correct
19 Correct 259 ms 18532 KB Output is correct
20 Correct 250 ms 18440 KB Output is correct
21 Correct 224 ms 18276 KB Output is correct
22 Correct 242 ms 18532 KB Output is correct
23 Correct 216 ms 18276 KB Output is correct
24 Correct 217 ms 18148 KB Output is correct
25 Correct 220 ms 18268 KB Output is correct
26 Correct 220 ms 18148 KB Output is correct
27 Correct 629 ms 32948 KB Output is correct
28 Correct 619 ms 32144 KB Output is correct
29 Correct 592 ms 32040 KB Output is correct
30 Correct 602 ms 32332 KB Output is correct
31 Correct 627 ms 32628 KB Output is correct
32 Correct 453 ms 30820 KB Output is correct
33 Correct 451 ms 30564 KB Output is correct
34 Correct 450 ms 30564 KB Output is correct
35 Correct 461 ms 30564 KB Output is correct
36 Correct 453 ms 30820 KB Output is correct
37 Correct 453 ms 30564 KB Output is correct
38 Correct 1443 ms 64928 KB Output is correct
39 Correct 1573 ms 70080 KB Output is correct
40 Correct 1146 ms 59148 KB Output is correct
41 Correct 1341 ms 67620 KB Output is correct
42 Correct 484 ms 31612 KB Output is correct
43 Correct 498 ms 31792 KB Output is correct
44 Correct 727 ms 44644 KB Output is correct
45 Correct 735 ms 44900 KB Output is correct
46 Correct 742 ms 44900 KB Output is correct
47 Correct 491 ms 31844 KB Output is correct
48 Correct 479 ms 31588 KB Output is correct
49 Correct 716 ms 44644 KB Output is correct
50 Correct 747 ms 44772 KB Output is correct
51 Correct 769 ms 45028 KB Output is correct
52 Correct 691 ms 41828 KB Output is correct
53 Correct 898 ms 57056 KB Output is correct
54 Correct 1125 ms 63676 KB Output is correct
55 Correct 906 ms 57188 KB Output is correct