QOJ.ac

QOJ

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
#816923#9870. ItemsCoffinsWA 20ms13916kbC++141.8kb2024-12-16 19:11:542024-12-16 19:11:58

Judging History

你现在查看的是最新测评结果

  • [2024-12-16 19:11:58]
  • 评测
  • 测评结果:WA
  • 用时:20ms
  • 内存:13916kb
  • [2024-12-16 19:11:54]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
using ll=long long;
const int N=1<<19;
const int p=998244353;
const int ig=(p+1)/3;
int n,k,l,a[N],q,r;ll m;
ll f[N],g[N],A[N],B[N];int rv[N];
ll ksm(ll a,ll b)
{
    ll ans=1;while(b)
    {
        if(b&1)ans=ans*a%p;
        a=a*a%p,b>>=1;
    }return ans;
}
void init(int n)
{
    for(int i=0;i<=n;i++)
    {
        rv[i]=rv[i>>1]>>1;
        if(i&1)rv[i]|=(n>>1);
    }
}void NTT(ll *a,int n,int o)
{
    for(int i=0;i<n;i++)
    if(rv[i]<i)swap(a[i],a[rv[i]]);
    for(int d=1;d<n;d<<=1)
    {
        ll bs=ksm(ig,(p-1)/d/2);
        if(~o)bs=ksm(bs,p-2);
        for(int i=0;i<n;i+=(d<<1))
        {
            ll vl=1;
            for(int j=i;j<i+d;j++)
            {
                ll x=a[j],y=a[j+d]*vl%p;
                if((a[j]=x+y)>=p)a[j]-=p;
                if((a[j+d]=x+p-y)>=p)a[j+d]-=p;
                vl=vl*bs%p;
            }
        }
    }if(o==-1)
    {
        const ll vl=ksm(n,p-2);
        for(int i=0;i<n;i++)
        a[i]=a[i]*vl%p;
    }
}void mul(ll *f,ll *g,int d)
{
    for(int i=0;i<l;i++)A[i]=f[i];
    for(int i=0;i<l;i++)B[i]=g[i];
    NTT(A,l,1),NTT(B,l,1);
    for(int i=0;i<l;i++)
    A[i]=A[i]*B[i]%p;
    NTT(A,l,-1);
    for(int i=0;i<l;i++)
    if(i+d<l&&A[i+d])f[i]=1;
    else f[i]=0;
    for(int i=0;i<l;i++)
    if(f[i])f[i]=1;
}
void solve()
{
    cin>>n>>m;k=n,q=m/n,r=m%n;
    l=1;while(l<=(n<<2))l<<=1;init(l);
    for(int i=1;i<=n;i++)cin>>a[i];
    for(int i=0;i<l;i++)f[i]=0;
    for(int i=0;i<l;i++)g[i]=0;g[n]=1;
    for(int i=1;i<=n;i++)f[a[i]]=1;
    while(k)
    {
        mul(g,g,n);
        if(k&1)mul(g,f,q);
        k>>=1;
    }if(g[r+n])cout<<"Yes\n";
    else cout<<"No\n";
}
int main()
{
    ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    int t;cin>>t;while(t--)solve();return 0;
}

详细

Test #1:

score: 100
Accepted
time: 2ms
memory: 13904kb

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: 20ms
memory: 13916kb

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

result:

wrong answer expected NO, found YES [18th token]