[코테2_4] 피보나치 수열

✔ 나의 답 -> 맞음

import java.util.*;

public class P2_4 {
  public static int[] solution(int n){
      int[] arr = new int[n];
      if(n==1) arr[0]=1;
      else if(n==2) {
        arr[0]=1;
        arr[1]=1;
        }  
       else {
         arr[0]=1;
         arr[1]=1;
         for(int i=2;i<n;i++){
               arr[i]=arr[i-1]+arr[i-2];
              }
        }
       return arr;

    }
  public static void main(String[] args){
    Scanner kb = new Scanner(System.in);
    int n = kb.nextInt();
    for(int x : solution(n))
       System.out.print(x+" ");
     
   }
}

✔️ 강의 답

import java.util.*;

public class p2_1 {
  public static int[] solution(int n){
      int[] arr = new int[n];
      arr[0]=1;
      arr[2]=1;
      for(int i=2;i<n;i++){
               arr[i]=arr[i-1]+arr[i-2];
       }
    
       return arr;

    }
  public static void main(String[] args){
    Scanner kb = new Scanner(System.in);
    int n = kb.nextInt();
    for(int x : solution(n))
       System.out.print(x+" ");
     
   }
}

import java.util.*;

public class p2_1 {
  public static void solution(int n){
      int a=1, b=1, c;
      System.out.print(a+" "+b+" ");
      for(int i=2;i<n;i++) {
    	  c=a+b;
    	  System.out.print(c+" ");
    	  a=b;
    	  b=c;
      }
    }
  public static void main(String[] args){
    Scanner kb = new Scanner(System.in);
    int n = kb.nextInt();
    solution(n);
    
     
   }
}