QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#72126 | #5356. esperar | Crysfly | 0 | 3ms | 7484kb | C++17 | 2.5kb | 2023-01-14 09:50:46 | 2023-01-14 09:50:48 |
Judging History
answer
#include<bits/stdc++.h>
#define For(i,a,b) for(int i=(a);i<=(b);++i)
#define Rep(i,a,b) for(int i=(a);i>=(b);--i)
using namespace std;
inline int read()
{
char c=getchar();int x=0;bool f=0;
for(;!isdigit(c);c=getchar())f^=!(c^45);
for(;isdigit(c);c=getchar())x=(x<<1)+(x<<3)+(c^48);
if(f)x=-x;return x;
}
#define mod 998244353
struct modint{
int x;
modint(int o=0){x=o;}
modint &operator = (int o){return x=o,*this;}
modint &operator +=(modint o){return x=x+o.x>=mod?x+o.x-mod:x+o.x,*this;}
modint &operator -=(modint o){return x=x-o.x<0?x-o.x+mod:x-o.x,*this;}
modint &operator *=(modint o){return x=1ll*x*o.x%mod,*this;}
modint &operator ^=(int b){
modint a=*this,c=1;
for(;b;b>>=1,a*=a)if(b&1)c*=a;
return x=c.x,*this;
}
modint &operator /=(modint o){return *this *=o^=mod-2;}
friend modint operator +(modint a,modint b){return a+=b;}
friend modint operator -(modint a,modint b){return a-=b;}
friend modint operator *(modint a,modint b){return a*=b;}
friend modint operator /(modint a,modint b){return a/=b;}
friend modint operator ^(modint a,int b){return a^=b;}
friend bool operator ==(modint a,int b){return a.x==b;}
friend bool operator !=(modint a,int b){return a.x!=b;}
bool operator ! () {return !x;}
modint operator - () {return x?mod-x:0;}
bool operator <(const modint&b)const{return x<b.x;}
};
inline modint qpow(modint x,int y){return x^y;}
vector<modint> fac,ifac,iv;
inline void initC(int n)
{
if(iv.empty())fac=ifac=iv=vector<modint>(2,1);
int m=iv.size(); ++n;
if(m>=n)return;
iv.resize(n),fac.resize(n),ifac.resize(n);
For(i,m,n-1){
iv[i]=iv[mod%i]*(mod-mod/i);
fac[i]=fac[i-1]*i,ifac[i]=ifac[i-1]*iv[i];
}
}
inline modint C(int n,int m){
if(m<0||n<m)return 0;
return initC(n),fac[n]*ifac[m]*ifac[n-m];
}
inline modint sign(int n){return (n&1)?(mod-1):(1);}
#define fi first
#define se second
#define pb push_back
#define mkp make_pair
typedef pair<int,int>pii;
typedef vector<int>vi;
#define maxn 400005
#define inf 0x3f3f3f3f
int n,a[maxn];
modint res1=1,res2=1;
int pri[maxn],pc[maxn],tot;
void fact(int x){
tot=0;
For(i,2,x/i)
if(x%i==0){
pri[++tot]=i,pc[tot]=0;
while(x%i==0)x/=i,++pc[tot];
}
if(x>1)pri[++tot]=x,pc[tot]=1;
}
signed main()
{
n=read();
For(i,1,n){
a[i]=read();
fact(a[i]);
For(j,1,tot){
res1*=(1ll*(pc[j]+1)*(pc[j]+2)/2%mod);
res2*=(pc[j]/2+1);
}
}
// cout<<res1.x<<" "<<res2.x<<endl;
cout<<((res1+res2)/2).x;
return 0;
}
Details
Tip: Click on the bar to expand more detailed information
Subtask #1:
score: 0
Wrong Answer
Test #1:
score: 17
Accepted
time: 1ms
memory: 5436kb
input:
2 2 3
output:
5
result:
ok single line: '5'
Test #2:
score: -17
Wrong Answer
time: 0ms
memory: 5440kb
input:
4 5 8 8 9
output:
904
result:
wrong answer 1st lines differ - expected: '916', found: '904'
Subtask #2:
score: 0
Wrong Answer
Test #7:
score: 0
Wrong Answer
time: 3ms
memory: 7484kb
input:
100 78125 625 244140625 9765625 390625 9765625 244140625 3125 125 244140625 1 78125 25 48828125 25 3125 15625 9765625 25 125 9765625 1 625 125 244140625 3125 15625 48828125 9765625 1 125 390625 1953125 15625 1 5 9765625 5 48828125 125 9765625 25 5 48828125 390625 25 125 390625 9765625 9765625 625 31...
output:
517412673
result:
wrong answer 1st lines differ - expected: '476416688', found: '517412673'
Subtask #3:
score: 0
Wrong Answer
Test #12:
score: 0
Wrong Answer
time: 2ms
memory: 7480kb
input:
100 78125 625 244140625 9765625 390625 9765625 244140625 3125 125 244140625 1 78125 25 48828125 25 3125 15625 9765625 25 125 9765625 1 625 125 244140625 3125 15625 48828125 9765625 1 125 390625 1953125 15625 1 5 9765625 5 48828125 125 9765625 25 5 48828125 390625 25 125 390625 9765625 9765625 625 31...
output:
517412673
result:
wrong answer 1st lines differ - expected: '476416688', found: '517412673'