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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#815304#9870. ItemszzuqyWA 13ms3804kbC++141.6kb2024-12-15 12:17:332024-12-15 12:17:35

Judging History

你现在查看的是最新测评结果

  • [2024-12-15 12:17:35]
  • 评测
  • 测评结果:WA
  • 用时:13ms
  • 内存:3804kb
  • [2024-12-15 12:17:33]
  • 提交

answer

#include<bits/stdc++.h>
#define N 100009
#define D 100009
#define int long long 
using namespace std;
int n,m,k,a[N];
bitset<D*2>ok,ok2;
int aabs(int x,int y){
	return max(x-y,y-x);
}
void solve(){
	scanf("%lld%lld",&n,&m);
	unordered_set<int>s;int k=0;
	for(int i=1;i<=n;i++){
		int x;scanf("%lld",&x);
		s.insert(x);
	}
	for(auto i:s)a[++k]=i;
	sort(a+1,a+k+1);
	a[0]=-10000000000000;
	a[k+1]=10000000000000;
	int tmp=m/n;
	int pos=0;
	for(int i=1;i<=k;i++){
		if(a[i]<=tmp&&tmp<a[i+1])pos=i; 
	} 
	int c=0;
	for(int i=0;i<=n;i++){
		if(aabs(a[pos]*i+a[pos+1]*(n-i),m)<aabs(a[pos]*c+a[pos+1]*(n-c),m))c=i; 
	}
	m-=a[pos]*c+a[pos+1]*(n-c);
	if(aabs(m,0)>D){
		cout<<"No"<<endl;
		return;
	}
	ok.reset();
	ok[m+D]=1; 
	vector<int>p,q;
	for(int i=1;i<=k;i++){
		if(aabs(a[i],a[pos])<D/2-1&&i!=pos)p.push_back(a[i]-a[pos]);
		if(aabs(a[i],a[pos+1])<D/2-1&&i!=pos+1)q.push_back(a[i]-a[pos+1]); 
	} 
	if(ok[D]){
		cout<<"Yes"<<endl;
		return;
	}
	if(p.size())
	for(int i=1;i<=min(1ll*n/(int)p.size(),c);i++){
		ok2.reset();
		for(auto x:p){
			if(x<0)ok2|=(ok<<(-x));
			else ok2|=(ok>>x);
		}
		ok=ok2|ok;
		if(ok[D]){
			cout<<"Yes"<<endl;
			return;
		}
	}
	if(q.size())
	for(int i=1;i<=min(1ll*n/(int)q.size(),n-c);i++){
		ok2.reset();
		for(auto x:q){
			if(x<0)ok2|=(ok<<(-x));
			else ok2|=(ok>>x);
		} 
		ok=ok2|ok;
		if(ok[D]){
			cout<<"Yes"<<endl;
			return;
		}
	}
	cout<<"No"<<endl;
}
signed main(){
	//freopen(".in","r",stdin);
	//freopen(".out","w",stdout);
	int t;scanf("%lld",&t);
	while(t--)solve();
	return 0;
}

Details

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Test #1:

score: 100
Accepted
time: 1ms
memory: 3692kb

input:

4
5 25
0 0 0 0 5
5 11
4 4 4 5 5
5 0
1 2 3 4 5
5 25
0 1 2 3 4

output:

Yes
No
No
No

result:

ok 4 token(s): yes count is 1, no count is 3

Test #2:

score: -100
Wrong Answer
time: 13ms
memory: 3804kb

input:

1314
1 0
0
1 0
1
1 1
0
1 1
1
2 0
0 0
2 0
0 1
2 0
0 2
2 0
1 0
2 0
1 1
2 0
1 2
2 0
2 0
2 0
2 1
2 0
2 2
2 1
0 0
2 1
0 1
2 1
0 2
2 1
1 0
2 1
1 1
2 1
1 2
2 1
2 0
2 1
2 1
2 1
2 2
2 2
0 0
2 2
0 1
2 2
0 2
2 2
1 0
2 2
1 1
2 2
1 2
2 2
2 0
2 2
2 1
2 2
2 2
2 3
0 0
2 3
0 1
2 3
0 2
2 3
1 0
2 3
1 1
2 3
1 2
2 3
2 0...

output:

Yes
No
No
Yes
Yes
Yes
Yes
Yes
No
No
Yes
No
No
No
Yes
No
Yes
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
Yes
No
Yes
No
No
No
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
Yes
No
No
No
Yes
No
No
No
Yes
Yes
Yes...

result:

wrong answer expected YES, found NO [253rd token]