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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
#820216#9870. ItemsWuyanruWA 507ms13216kbC++143.0kb2024-12-18 20:10:292024-12-18 20:10:35

Judging History

你现在查看的是最新测评结果

  • [2024-12-18 20:10:35]
  • 评测
  • 测评结果:WA
  • 用时:507ms
  • 内存:13216kb
  • [2024-12-18 20:10:29]
  • 提交

answer

#include<bits/stdc++.h>
#define inf 0x3f3f3f3f3f3f3f3fll
#define debug(x) cerr<<#x<<"="<<x<<endl
using namespace std;
using ll=long long;
using ld=long double;
using pli=pair<ll,int>;
using pi=pair<int,int>;
template<typename A>
using vc=vector<A>;
inline int read()
{
    int s=0,w=1;char ch;
    while((ch=getchar())>'9'||ch<'0') if(ch=='-') w=-1;
    while(ch>='0'&&ch<='9') s=s*10+ch-'0',ch=getchar();
    return s*w;
}
inline ll lread()
{
    ll s=0,w=1;char ch;
    while((ch=getchar())>'9'||ch<'0') if(ch=='-') w=-1;
    while(ch>='0'&&ch<='9') s=s*10+ch-'0',ch=getchar();
    return s*w;
}
const int mod=998244353;
const int G=3;
const int NG=(mod+1)/G;
int wh[600005];
ll f[600005];
ll g[600005];
int w[100005];
int n,m;
inline ll qow(ll a,ll b)
{
    ll ans=1;
    while(b)
    {
        if(b&1) ans=ans*a%mod;
        a=a*a%mod;
        b>>=1;
    }
    return ans;
}
inline void NTT(ll *f,int L,bool dft)
{
    for(int i=0;i<(1<<L);i++) if(i<wh[i]) swap(f[i],f[wh[i]]);
    for(int len=1;len<=L;len++)
    {
        ll step=qow(dft?G:NG,(mod-1)>>len);
        for(int l=0,r=1<<len;l<(1<<L);l=r,r+=1<<len)
        {
            ll now=1;
            for(int i=l,j=l+(1<<(len-1));j<r;i++,j++)
            {
                ll num=now*f[j]%mod;
                f[j]=(f[i]-num)%mod;
                f[i]=(f[i]+num)%mod;
                now=now*step%mod;   
            }
        }
    }
    if(!dft)
    {
        ll num=qow(1<<L,mod-2);
        for(int i=0;i<(1<<L);i++) f[i]=f[i]*num%mod;
    }
}
struct poly
{
    // [m-n,m+n]
    // a[i] -> m-n+i
    bool a[200005];
    poly(){ memset(a,0,sizeof(a));}
    inline void clear(){ memset(a,0,sizeof(a));}
    poly operator * (poly b)
    {
        int L=0;
        while((1<<L)<=4*n) L++;
        memset(f,0,sizeof(ll)*(1<<L));
        memset(g,0,sizeof(ll)*(1<<L));
        for(int i=0;i<=2*n;i++) f[i]=a[i],g[i]=b.a[i];
        for(int i=0;i<(1<<L);i++) wh[i]=(wh[i>>1]>>1)|((i&1)?(1<<(L-1)):0);

        NTT(f,L,true),NTT(g,L,true);
        for(int i=0;i<(1<<L);i++) f[i]=f[i]*g[i]%mod;
        NTT(f,L,false);

        poly ans;
        for(int i=0;i<=2*n;i++) ans.a[i]=f[i-m+n]%mod;

        // printf("m-n=%d-%d=%d\n",m,n,m-n);
        // for(int i=0;i<=2*n;i++) printf("%d%c",a[i]," \n"[i==2*n]);
        // for(int i=0;i<=2*n;i++) printf("%d%c",b.a[i]," \n"[i==2*n]);
        // for(int i=0;i<=2*n;i++) printf("%d%c",ans.a[i]," \n"[i==2*n]);
        return ans;
    }
}v[30];
inline void solve()
{
    n=read();ll M=lread(),V=M/n;m=M%n;
    for(int i=1;i<=n;i++) w[i]=read()-V;

    v[0].clear();poly ans;ans.a[n-m]=1;
    for(int i=1;i<=n;i++) if(w[i]>=m-n&&w[i]<=m+n) v[0].a[w[i]-m+n]=1;
    if(n&1) ans=ans*v[0];

    for(int i=1;(1<<i)<=n;i++)
    {
        v[i]=v[i-1]*v[i-1];
        if((n>>i)&1) ans=ans*v[i];
    }
    if(ans.a[n]) printf("Yes\n");
    else printf("No\n");
}
int main()
{
    int T=read();
    while(T--) solve();
    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 12796kb

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: 0
Accepted
time: 61ms
memory: 13064kb

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:

ok 1314 token(s): yes count is 732, no count is 582

Test #3:

score: -100
Wrong Answer
time: 507ms
memory: 13216kb

input:

10000
4 1
0 0 0 0
4 1
0 0 0 1
4 1
0 0 0 2
4 1
0 0 0 3
4 1
0 0 0 4
4 1
0 0 1 0
4 1
0 0 1 1
4 1
0 0 1 2
4 1
0 0 1 3
4 1
0 0 1 4
4 1
0 0 2 0
4 1
0 0 2 1
4 1
0 0 2 2
4 1
0 0 2 3
4 1
0 0 2 4
4 1
0 0 3 0
4 1
0 0 3 1
4 1
0 0 3 2
4 1
0 0 3 3
4 1
0 0 3 4
4 1
0 0 4 0
4 1
0 0 4 1
4 1
0 0 4 2
4 1
0 0 4 3
4 1
0 ...

output:

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

result:

wrong answer expected YES, found NO [6270th token]