View Code of Problem 23

#include <stdio.h>
int main()
{
        int m;
    long int a[90];
    a[1]=1;
    a[2]=2;
    for(int i=3;i<=90;i++)
    {
        a[i]=a[i-1] + a[i-2]; 
    }
while(scanf("%d",&m)!=EOF)
{
	if(m==0) break;	
	printf("%ld\n",a[m]);
}
    return 0;
}