View Code of Problem 23

#include<stdio.h>
int main()
{
	int d,i;
	long a[100];
	a[1]=1;a[2]=2;
	for(i=3;i<100;i++)
	{
		a[i]=a[i-1]+a[i-2];
	}
	
	while(scanf("%d",&d)&&d)
	{
		printf("%ld\n",a[d]);
	}
	return 0;
} 

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