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