View Code of Problem 23

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