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