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QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#41094 | #2574. Fancy Arrays | Bovmelo | Compile Error | / | / | C++23 | 2.6kb | 2022-07-27 17:39:51 | 2022-07-27 17:39:53 |
Judging History
你现在查看的是最新测评结果
- [2023-08-10 23:21:45]
- System Update: QOJ starts to keep a history of the judgings of all the submissions.
- [2022-07-27 17:39:53]
- 评测
- 测评结果:Compile Error
- 用时:0ms
- 内存:0kb
- [2022-07-27 17:39:51]
- 提交
answer
// Nothing is Given, Everything is Earned.
#include<bits/stdc++.h>
using namespace std;
#define var const auto &
constexpr int P=1e9+7;
constexpr auto mul(var a,var b) { return 1ll*a*b%P; }
constexpr auto mul(var a,var ...b) { return mul(a,mul(b...)); }
constexpr auto add(var a,var b) { return (a+b)>=P?a+b-P:a+b; }
constexpr auto sub(var a,var b) { return a-b<0?a-b+P:a-b; }
constexpr void add$(auto &a,var b) { a=add(a,b); }
constexpr void mul$(auto &a,var b) { a=mul(a,b); }
constexpr qpow(int a,int b)
{
int res=1;
for(;b;b>>=1,mul$(a,a)) if(b&1) mul$(res,a);
return res;
}
using LL=long long;
const int N=400,M=64;
LL m;
int q,n,C[M][M];
map<int,int> mp;
using Arr=array<int,N>;
using Mat=array<Arr,N>;
Mat pw[M];
Mat operator * (const Mat &x, const Mat &y)
{
Mat res{};
for(int i=0;i<n;i++) for(int j=0;j<n;j++)
for(int k=0;k<n;k++)
{
add$(res[i][j],mul(x[i][k],y[k][j]));
}
return res;
}
Arr operator * (const Arr &x, const Mat &y)
{
Arr res{};
for(int i=0;i<n;i++) for(int j=0;j<n;j++)
add$(res[j],mul(x[i],y[i][j]));
return res;
}
int main()
{
for(int i=C[0][0]=1;i<M;i++)
for(int j=C[i][0]=1;j<=i;j++)
C[i][j]=add(C[i-1][j],C[i-1][j-1]);
cin>>m>>q;
for(int i=2;i<=sqrt(m);i++) if(m%i==0)
{
int cnt=0; for(;m%i==0;m/=i) cnt++;
mp[cnt]++;
}
if(m!=1) mp[1]++;
vector<pair<int,int>> S;
for(auto [i,j]:mp) S.push_back({i,j});
// cerr<<"s.size()="<<S.size()<<endl;
vector<array<int,14>> t;
function<void(int)> dfs=[&](unsigned x)
{
static array<int,14> cur;
if(x==S.size())
{
t.push_back(cur);
return;
}
for(int i=0;i<=S[x].second;i++)
cur[x]=i, dfs(x+1);
};
dfs(0); n=t.size();
// printf("t.size()=%lld\n",t.size());
pw[0]={};
for(int i=0;i<n;i++) for(int j=0;j<n;j++)
{
auto x=t[i],y=t[j];
int ret=1,dec=1;
for(size_t i=0;i<S.size();i++)
mul$(ret,mul(C[S[i].second][y[i]],qpow(S[i].first,y[i])));
for(size_t i=0;i<S.size();i++)
mul$(dec,mul(C[S[i].second-x[i]][y[i]],qpow(S[i].first,y[i])));
pw[0][i][j]=sub(ret,dec);
// printf("base[%d][%d]=%d\n",i,j,pw[0][i][j]);
}
for(int i=1;i<M;i++)
{
pw[i]=pw[i-1]*pw[i-1];
}
while(q--)
{
LL x; cin>>x;
int sum=x==1;
Arr ans{}; ans[n-1]=1;
for(int i=0;i<M;i++) if(x>>i&1)
ans=ans*pw[i];
for(int i=0;i<n;i++) add$(sum,ans[i]);
cout<<sum<<'\n';
}
return 0;
}
Details
answer.code:13:11: error: ISO C++ forbids declaration of ‘qpow’ with no type [-fpermissive] 13 | constexpr qpow(int a,int b) | ^~~~