数列

#include<stdio.h>
int main()
{
    int k,k1=1,n,a=0;
    scanf("%d %d",&k,&n);
    while(n!=0)
    {
        a+= n%2? k1:0; 
        k1*=k;
        n/=2;
    }
    printf("%d",a);
    return 0;
}

 

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