题目描述

blablabla

样例

blablabla

#include<iostream>
using namespace std;
int main()
{
    int n;
    cin>>n;
    int a1=0,a2=1,a;   
   if(n==1)cout<<a1<<" ";
   if(n==2)cout<<a1<<" "<<a2<<" ";
   if(n>2)
   {
       cout<<a1<<" "<<a2<<" ";
       for(int i=3;i<=n;i++)
       {     
             a=a1+a2;cout<<a<<" ";
             a1=a2;
             a2=a; 
          } 
   }
    return 0;
 }