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