View Code of Problem 23

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