oj.uz

Submission #1025334

# Submission time Handle Problem Language Result Execution time Memory
1025334 2024-07-16T20:22:06 Z 1L1YA Long Mansion (JOI17_long_mansion) C++17
100 / 100
 645 ms 94408 KB 
//1L1YA
     
#include<bits/stdc++.h>
using namespace std;
     
//#pragma GCC optimize ("O3,unrool-loops")
//#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
     
typedef long long       ll;
typedef pair<ll,ll>     pll;
typedef pair<int,int>   pii;
     
#define Pb              push_back
#define F               first
#define S               second
#define endl            '\n'
#define sep             ' '
#define all(x)          x.begin(),x.end()
#define al(x,n)         x+1,x+n+1
#define SZ(x)           ((int)x.size())
#define lc              (id<<1)
#define rc              (lc|1)
#define mid             (l+r>>1)
#define dokme(x)        cout << x << endl, exit(0)
#define sik(x)          cout << x << endl;continue;
#define FastIO          ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define FileIO          freopen("input.txt","r",stdin);freopen("output.txt","w",stdout);
   
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
    
const ll oo=1e18;
const int mod=1e9+7;
const int inf=1e9+111;
const int N=5e5+11;
const int lg=23;
     
int n,m,q,a[N],l[N],r[N],lst[N];
vector<int> vc[N],vec[N];
pii val[N],seg[N<<2];
     
void build(int id=1,int l=1,int r=n+1){
 	seg[id]={1,n};
   	if(r-l==1)	return;
   	build(lc,l,mid);
   	build(rc,mid,r);
}
    
void update(int ql,int qr,pii val,int id=1,int l=1,int r=n+1){
   	if(qr<=l || ql>=r)	return;
   	if(ql<=l && r<=qr){
   		seg[id].F=max(seg[id].F,val.F);
   		seg[id].S=min(seg[id].S,val.S);
   		return;
   	}
   	update(ql,qr,val,lc,l,mid);
   	update(ql,qr,val,rc,mid,r);
   }
    
pii get(int pos,int id=1,int l=1,int r=n+1){
   	if(r-l==1)	return seg[id];
   	pii p;
   	if(pos<mid)	p=get(pos,lc,l,mid);
   	else	p=get(pos,rc,mid,r);
   	return {max(p.F,seg[id].F),min(p.S,seg[id].S)}; 
}
    
int main(){
   	FastIO
    
   	cin >> n;
   	for(int i=1;i<n;i++)	cin >> a[i];
   	for(int i=1;i<=n;i++){
   		cin >> m;
   		for(int j=1;j<=m;j++){
   			int x;cin >> x;
   			vc[i].Pb(x);
   		}
   	}
   	for(int i=1;i<n;i++){
   		for(int j: vc[i])	lst[j]=i;
   		l[i]=lst[a[i]];
   	}
   	fill(lst,lst+n+1,n+1);
   	for(int i=n;i>1;i--){
   		for(int j: vc[i])	lst[j]=i;
   		r[i-1]=lst[a[i-1]];
   		vec[r[i-1]].Pb(i);
   	}
   	build();
   	set<int> st;
   	for(int i=0;i<=n;i++){
   		for(int j: vec[i])	st.erase(j);
   		if(SZ(st)){
   			auto it=st.upper_bound(l[i]);
   			if(it!=st.end())	update(*it,i+1,{1,i});
   		}
   		st.insert(i+1);
   	}
   	st.clear();
   	for(int i=0;i<=n+1;i++)	vec[i].clear();
   	for(int i=1;i<n;i++)	vec[l[i]].Pb(i);
   	r[0]=n+1;
   	for(int i=n+1;i;i--){
   		for(int j: vec[i])	st.erase(j);
   		if(SZ(st)){
   			auto it=st.lower_bound(r[i-1]);
   			if(it--!=st.begin())	update(i,(*it)+1,{i,n});
   		}
   		st.insert(i-1);
   	}
   	for(int i=1;i<=n;i++)	val[i]=get(i);
   	cin >> q;
   	while(q--){
   		int x,y;
   		cin >> x >> y;
   		if(y>=val[x].F && y<=val[x].S)	cout << "YES" << endl;
   		else	cout << "NO" << endl;
   	}
    
   	return 0;
}

Compilation message

long_mansion.cpp: In function 'void build(int, int, int)':
long_mansion.cpp:23:27: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   23 | #define mid             (l+r>>1)
      |                          ~^~
long_mansion.cpp:44:16: note: in expansion of macro 'mid'
   44 |     build(lc,l,mid);
      |                ^~~
long_mansion.cpp:23:27: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   23 | #define mid             (l+r>>1)
      |                          ~^~
long_mansion.cpp:45:14: note: in expansion of macro 'mid'
   45 |     build(rc,mid,r);
      |              ^~~
long_mansion.cpp: In function 'void update(int, int, pii, int, int, int)':
long_mansion.cpp:23:27: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   23 | #define mid             (l+r>>1)
      |                          ~^~
long_mansion.cpp:55:27: note: in expansion of macro 'mid'
   55 |     update(ql,qr,val,lc,l,mid);
      |                           ^~~
long_mansion.cpp:23:27: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   23 | #define mid             (l+r>>1)
      |                          ~^~
long_mansion.cpp:56:25: note: in expansion of macro 'mid'
   56 |     update(ql,qr,val,rc,mid,r);
      |                         ^~~
long_mansion.cpp: In function 'pii get(int, int, int, int)':
long_mansion.cpp:23:27: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   23 | #define mid             (l+r>>1)
      |                          ~^~
long_mansion.cpp:62:12: note: in expansion of macro 'mid'
   62 |     if(pos<mid) p=get(pos,lc,l,mid);
      |            ^~~
long_mansion.cpp:23:27: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   23 | #define mid             (l+r>>1)
      |                          ~^~
long_mansion.cpp:62:32: note: in expansion of macro 'mid'
   62 |     if(pos<mid) p=get(pos,lc,l,mid);
      |                                ^~~
long_mansion.cpp:23:27: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
   23 | #define mid             (l+r>>1)
      |                          ~^~
long_mansion.cpp:63:23: note: in expansion of macro 'mid'
   63 |     else p=get(pos,rc,mid,r);
      |                       ^~~

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 33368 KB Output is correct
2 Correct 7 ms 33368 KB Output is correct
3 Correct 8 ms 33628 KB Output is correct
4 Correct 6 ms 33372 KB Output is correct
5 Correct 6 ms 33372 KB Output is correct
6 Correct 6 ms 33372 KB Output is correct
7 Correct 7 ms 33372 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 33368 KB Output is correct
2 Correct 7 ms 33368 KB Output is correct
3 Correct 8 ms 33628 KB Output is correct
4 Correct 6 ms 33372 KB Output is correct
5 Correct 6 ms 33372 KB Output is correct
6 Correct 6 ms 33372 KB Output is correct
7 Correct 7 ms 33372 KB Output is correct
8 Correct 75 ms 39312 KB Output is correct
9 Correct 68 ms 39252 KB Output is correct
10 Correct 77 ms 39532 KB Output is correct
11 Correct 71 ms 40016 KB Output is correct
12 Correct 67 ms 38736 KB Output is correct
13 Correct 65 ms 39628 KB Output is correct
14 Correct 64 ms 39504 KB Output is correct
15 Correct 64 ms 39388 KB Output is correct
16 Correct 61 ms 39256 KB Output is correct
17 Correct 66 ms 39508 KB Output is correct
18 Correct 66 ms 39508 KB Output is correct
19 Correct 64 ms 39508 KB Output is correct
20 Correct 69 ms 39436 KB Output is correct
21 Correct 62 ms 39252 KB Output is correct
22 Correct 63 ms 39272 KB Output is correct
23 Correct 68 ms 39248 KB Output is correct
24 Correct 67 ms 39248 KB Output is correct
25 Correct 67 ms 39340 KB Output is correct
26 Correct 72 ms 39248 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 172 ms 43344 KB Output is correct
2 Correct 139 ms 43292 KB Output is correct
3 Correct 129 ms 43376 KB Output is correct
4 Correct 147 ms 43344 KB Output is correct
5 Correct 142 ms 43524 KB Output is correct
6 Correct 104 ms 43348 KB Output is correct
7 Correct 109 ms 43600 KB Output is correct
8 Correct 98 ms 43604 KB Output is correct
9 Correct 100 ms 43720 KB Output is correct
10 Correct 95 ms 43564 KB Output is correct
11 Correct 102 ms 43600 KB Output is correct

Subtask #4
75.0 / 75.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 33368 KB Output is correct
2 Correct 7 ms 33368 KB Output is correct
3 Correct 8 ms 33628 KB Output is correct
4 Correct 6 ms 33372 KB Output is correct
5 Correct 6 ms 33372 KB Output is correct
6 Correct 6 ms 33372 KB Output is correct
7 Correct 7 ms 33372 KB Output is correct
8 Correct 75 ms 39312 KB Output is correct
9 Correct 68 ms 39252 KB Output is correct
10 Correct 77 ms 39532 KB Output is correct
11 Correct 71 ms 40016 KB Output is correct
12 Correct 67 ms 38736 KB Output is correct
13 Correct 65 ms 39628 KB Output is correct
14 Correct 64 ms 39504 KB Output is correct
15 Correct 64 ms 39388 KB Output is correct
16 Correct 61 ms 39256 KB Output is correct
17 Correct 66 ms 39508 KB Output is correct
18 Correct 66 ms 39508 KB Output is correct
19 Correct 64 ms 39508 KB Output is correct
20 Correct 69 ms 39436 KB Output is correct
21 Correct 62 ms 39252 KB Output is correct
22 Correct 63 ms 39272 KB Output is correct
23 Correct 68 ms 39248 KB Output is correct
24 Correct 67 ms 39248 KB Output is correct
25 Correct 67 ms 39340 KB Output is correct
26 Correct 72 ms 39248 KB Output is correct
27 Correct 172 ms 43344 KB Output is correct
28 Correct 139 ms 43292 KB Output is correct
29 Correct 129 ms 43376 KB Output is correct
30 Correct 147 ms 43344 KB Output is correct
31 Correct 142 ms 43524 KB Output is correct
32 Correct 104 ms 43348 KB Output is correct
33 Correct 109 ms 43600 KB Output is correct
34 Correct 98 ms 43604 KB Output is correct
35 Correct 100 ms 43720 KB Output is correct
36 Correct 95 ms 43564 KB Output is correct
37 Correct 102 ms 43600 KB Output is correct
38 Correct 645 ms 80468 KB Output is correct
39 Correct 574 ms 85860 KB Output is correct
40 Correct 396 ms 73040 KB Output is correct
41 Correct 286 ms 86096 KB Output is correct
42 Correct 132 ms 51332 KB Output is correct
43 Correct 123 ms 51028 KB Output is correct
44 Correct 185 ms 64336 KB Output is correct
45 Correct 175 ms 64376 KB Output is correct
46 Correct 170 ms 64596 KB Output is correct
47 Correct 112 ms 50768 KB Output is correct
48 Correct 145 ms 50768 KB Output is correct
49 Correct 160 ms 64244 KB Output is correct
50 Correct 156 ms 64084 KB Output is correct
51 Correct 157 ms 64540 KB Output is correct
52 Correct 265 ms 68152 KB Output is correct
53 Correct 371 ms 82652 KB Output is correct
54 Correct 468 ms 94408 KB Output is correct
55 Correct 342 ms 83344 KB Output is correct