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#791498#5466. Permutation CompressionTom22lWA 2ms16052kbC++173.4kb2024-11-28 19:09:422024-11-28 19:09:44

Judging History

你现在查看的是最新测评结果

  • [2024-11-28 19:09:44]
  • 评测
  • 测评结果:WA
  • 用时:2ms
  • 内存:16052kb
  • [2024-11-28 19:09:42]
  • 提交

answer

#include<bits/stdc++.h>
#define int long long
using namespace std;
int Read(){
	int x=0;
	char ch=getchar();bool f=0;
	while(ch<'0'||ch>'9') if(ch=='-')f=1,ch=getchar(); else if(ch==EOF)return 0; else ch=getchar();
	while(ch>='0'&&ch<='9') x=(x<<1)+(x<<3)+(ch^48),ch=getchar();
	return f?-x:x;
}
int a[200005];
int pos[200005];
int b[200005];
bool c[200005];
int pre[200005];
int aft[1000005];
int stk[1000005];
set<int> sk;
int n;
int s[1000005];
int lowbit(int x){
	return x&(-x);
}
void update(int x){
	for(;x<=n;x+=lowbit(x))
		s[x]+=1;
}
int query(int x){
	int ans=0;
	for(;x;x-=lowbit(x)) ans+=s[x];
	return ans;
}
int s2[1000005];
void update2(int x,int y){
	for(;x<=n;x+=lowbit(x))
		s2[x]+=y;
}
int query2(int x){
	int ans=0;
	for(;x;x-=lowbit(x)) ans+=s2[x];
	return ans;
}
int res;
signed main(){
//	printf("YES\nYES\nNO\n"); 
	int T=Read();
//	if(T==3)return 0;
	for(int t=1;t<=T;t++){
		set<int>::iterator it;
		n=Read();int m=Read(),k=Read();
//		if(t==50){
//			cout<<n<<' '<<m<<' '<<k<<endl;
//		}
		for(int i=1;i<=n;i++){
			a[i]=Read(),pos[a[i]]=i,s[i]=0,s2[i]=0;
//			if(t==50)cout<<a[i]<<' ';
		}
		for(int i=n;i<=2*n;i++) s[i]=0,s2[i]=0;
		for(int i=1;i<=m;i++){
			b[i]=Read();
//			if(t==50)cout<<b[i]<<' '; 
		}
		int p1=1;
		b[m+1]=0; 
		for(int i=1;i<=n;i++){
			if(a[i]==b[p1]) c[i]=1,p1++;
			else c[i]=0;
		}
		for(int i=1;i<=k;i++){
			int d=Read();update2(d,1);
//			if(t==50)cout<<d<<' ';
		}
		if(p1!=m+1){
			printf("NO\n");
			for(int i=1;i<=2*n;i++){
				a[i]=0,pos[i]=0,b[i]=0,c[i]=0,pre[i]=0,aft[i]=0,stk[i]=0,s[i]=0,s2[i]=0;sk.clear();
			}
			continue;
		}
		sk.clear();
		res=1;
		stk[1]=0;
		sk.insert(0);
		for(int i=1;i<=n;i++){
			if(c[i]){
				while(stk[res]<a[i]&&res){
					sk.erase(stk[res]);
					res--;
				}
				stk[++res]=a[i];
				sk.insert(stk[res]);
			}else{
				it=lower_bound(sk.begin(),sk.end(),a[i]);
				if(it==sk.end()) pre[i]=0;
				else pre[i]=pos[*it];
			}
		}
		sk.clear();
		res=1;
		stk[1]=0;
		sk.insert(0);
		for(int i=n;i>=1;i--){
			if(c[i]){
				while(stk[res]<a[i]&&res){
					sk.erase(stk[res]);
					res--;
				}
				stk[++res]=a[i];
				sk.insert(stk[res]);
			}else{
				it=lower_bound(sk.begin(),sk.end(),a[i]);
				if(it==sk.end()) aft[i]=n+1;
				else aft[i]=pos[*it];
			}
		}
//		for(int i=1;i<=n;i++)
//			printf("%lld %lld\n",pre[i],aft[i]);
		bool flag=1;
		for(int i=n;i>=1;i--){
			if(!c[pos[i]]){
				int len=aft[pos[i]]-pre[pos[i]]-1;
				int mis=query(aft[pos[i]])-query(pre[pos[i]]);
				len-=mis;
				int pt=query2(len);
//				cout<<i<<' '<<pos[i]<<' '<<len<<' '<<query2(len)<<endl;
				if(pt<=0){
//					if(t==24)printf("%lld %lld %lld %lld %lld\n",i,pos[i],len,query2(len),s[1]);
					printf("NO\n");
					flag=0;
					break;
				}
				int lft=1,rgt=len;
				int aim=0;
				while(lft<=rgt){
					int mid=(lft+rgt)>>1;
//					cout<<mid<<endl;
					if(query2(mid)==pt) aim=mid,rgt=mid-1;
					else lft=mid+1;
				}
//				cout<<aim<<endl;
				update2(aim,-1);
				update(pos[i]);
			}
		}
		if(flag)printf("YES\n");
//		if(t==23) printf("23");
//		if(t==24) printf("24");
		for(int i=1;i<=2*n;i++){
			a[i]=0,pos[i]=0,b[i]=0,c[i]=0,pre[i]=0,aft[i]=0,stk[i]=0,s[i]=0,s2[i]=0;sk.clear();
		}
	}
	return 0; 
}
/*
1
6 4 3
4 5 1 6 3 2 
4 1 3 2 
6 6 3 
1
6 2 6
2 3 5 6 1 4
2 1
5 5 6 6 3 6 
*/

详细

Test #1:

score: 100
Accepted
time: 2ms
memory: 15992kb

input:

3
5 2 3
5 1 3 2 4
5 2
1 2 4
5 5 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
3 2 2
3 1 2
3 2
2 3

output:

YES
YES
NO

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 0ms
memory: 15988kb

input:

100
2 1 2
2 1
2
1 1
2 1 2
1 2
1
2 2
2 1 1
1 2
1
2
6 1 5
3 4 2 5 6 1
3
5 2 1 1 1
6 1 6
2 1 3 6 4 5
1
4 1 2 2 1 4
3 3 2
2 1 3
2 1 3
2 2
1 1 1
1
1
1
1 1 1
1
1
1
2 1 2
2 1
2
1 2
4 4 3
2 1 3 4
2 1 3 4
4 3 1
1 1 1
1
1
1
6 5 1
6 2 5 4 3 1
6 2 4 3 1
4
1 1 1
1
1
1
6 5 3
3 6 1 4 5 2
3 6 1 4 2
3 3 4
4 3 4
3 4 ...

output:

YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
YES
YES
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YE...

result:

ok 100 lines

Test #3:

score: -100
Wrong Answer
time: 2ms
memory: 16052kb

input:

99
6 1 6
1 5 3 4 2 6
1
1 2 1 1 1 6
1 1 1
1
1
1
4 1 3
3 4 1 2
1
1 1 2
2 2 1
2 1
2 1
2
1 1 1
1
1
1
2 1 2
1 2
2
1 2
1 1 1
1
1
1
1 1 1
1
1
1
3 2 2
3 2 1
2 1
1 2
3 3 1
2 3 1
2 3 1
1
6 1 5
3 4 2 5 6 1
3
4 2 1 1 1
6 4 4
1 6 5 2 3 4
1 2 3 4
5 4 4 6
2 1 1
1 2
1
1
6 5 1
2 1 4 5 6 3
2 1 4 6 3
2
6 3 6
5 6 2 1 3...

output:

YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
YES
YES
YES
YES
YES
NO
YES
YES
YES
NO
YES
YES
YES
NO
YES
YES
NO
YES
NO
YES
NO
YES
YES
YES
YES
YES
YES
NO
YES
NO
NO
YES
YES
YES
Y...

result:

wrong answer 49th lines differ - expected: 'NO', found: 'YES'