题解 | #斐波那契数列#
斐波那契数列
https://www.nowcoder.com/practice/c6c7742f5ba7442aada113136ddea0c3
public class Solution { public int Fibonacci(int n) { if (n == 1 || n == 2) { return 1; } int a = 1, b = 1, c = 1; for (int i = 3; i <= n; i++) { c = a + b; a = b; b = c; } return c; } }