斐波那契数列第n项

import java.util.Scanner;

public class Main{
	public static void main(String[] args){
	    Scanner sc = new Scanner(System.in);
		
	    int n = sc.nextInt();
	    int a = 1, b = 1, i = 1;
	    while (i < n){
	        int c = a + b;
	        a = b;
	        b = c;
	        i ++;
	    }
		
	    System.out.println(a);
	}
}

2023-05-01 13:08:10 星期一