Pagini recente » Cod sursa (job #1822281) | Cod sursa (job #1190913) | Cod sursa (job #817665) | Cod sursa (job #819264) | Cod sursa (job #182977)
Cod sursa(job #182977)
#include<cstdio>
const int mod=9901;
int inv[9901],i,x,y,a,b,n;
void invers(int a,int b,int &x,int &y)
{
if(b==0)
{
x=1;
y=0;
}
else
{
int x0,y0;
invers(b,a%b,x0,y0);
x=y0;
y=x0-(a/b)*y0;
}
}
int pow(int a,int b)
{
if(b==1)
return a%mod;
int x=pow(a,b/2);
x=(x*x)%mod;
if(b&1) x=(x*a)%mod;
return x;
}
int main()
{
freopen("sumdiv.in","r",stdin);
freopen("sumdiv.out","w",stdout);
inv[1]=1;
for(i=2;i<mod;i++)
if(!inv[i])
{
invers(i,mod,x,y);
if(x<0) x=x+mod;
x=x%mod;
inv[i]=x;
inv[x]=i;
}
scanf("%d %d",&a,&b);
if(a!=1 && b)
{
i=2;
n=1;
while(i*i<=a && n)
{
x=0;
while(a%i==0)
a/=i,x++;
if(x)
{
n=(n*(pow(i,(x+1)*b)-1)*inv[(i-1)%mod])%mod;
if(n<0) n+=mod;
}
}
if(a!=1 && n)
n=(n*(pow(a,b+1)-1)*inv[(a-1)%mod])%mod;
if(n<0) n+=mod;
}
else
n=1;
printf("%d\n",n);
fclose(stdout);
return 0;
}