View Code of Problem 86

#include <stdio.h>
#include <math.h>
int main()
{
	int a,n,i;
	long int k,sum=0;
	int b[10];
	scanf("%d %d",&a,&n);
	b[0]=a;
	for(i=1;i<n;i++)
	{
		k=(int)pow(10,i);
		b[i]=a*k+b[i-1];
	}
	for(i=0;i<n;i++)
	{
		sum=sum+b[i];
	}
	printf("%ld",sum);
	return 0;
}

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