View Code of Problem 23

#include<stdio.h>

int main(){
	int i,m;
	long f[100];
	while(scanf("%d",&m)&& m)
	{
		f[1]=1;
		f[2]=2;
		for (i=3;i<=m;i++)
			f[i]=f[i-1]+f[i-2];
		printf("%ld\n",f[m]);
	}
	return 0;
}