View Code of Problem 23

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

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