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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#791423#5466. Permutation CompressionTom22lWA 3ms18044kbC++172.8kb2024-11-28 18:31:292024-11-28 18:31:30

Judging History

你现在查看的是最新测评结果

  • [2024-11-28 18:31:30]
  • 评测
  • 测评结果:WA
  • 用时:3ms
  • 内存:18044kb
  • [2024-11-28 18:31:29]
  • 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");
	int T=Read();
	for(int t=1;t<=T;t++){
		set<int>::iterator it;
		n=Read();int m=Read(),k=Read();
//		if(t==24){
//			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==24)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==24)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==24)cout<<d<<' ';
		}
		if(p1!=m+1){
			printf("NO?\n");
			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;
				if(query2(len)<=0){
//					if(t==24)printf("%lld %lld %lld %lld %lld\n",i,pos[i],len,query2(len),s[1]);
					printf("NO\n");
					flag=0;
					continue;
				}
				update2(len,-1);
				update(pos[i]);
			}
		}
		if(flag)printf("YES\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();
		}
	}
	return 0; 
}

詳細信息

Test #1:

score: 100
Accepted
time: 0ms
memory: 18040kb

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: -100
Wrong Answer
time: 3ms
memory: 18044kb

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
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
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...

result:

wrong answer 24th lines differ - expected: 'YES', found: 'NO'