View Code of Problem 23

#include <stdio.h>
#include <stdlib.h>
#include<ctype.h>
#include<string.h>
#include<math.h>
int main()
{
	long int a[90];
	int m,i,j;
	a[0] = 1;
	a[1] = 2;
	for (i = 2; 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 - 1]);
	}
	

	return 0;
}