题目:
题解:
public class Solution {public int climbStairs(int n) {double sqrt5 = Math.sqrt(5);double fibn = Math.pow((1 + sqrt5) / 2, n + 1) - Math.pow((1 - sqrt5) / 2, n + 1);return (int) Math.round(fibn / sqrt5);}
}
题目:
题解:
public class Solution {public int climbStairs(int n) {double sqrt5 = Math.sqrt(5);double fibn = Math.pow((1 + sqrt5) / 2, n + 1) - Math.pow((1 - sqrt5) / 2, n + 1);return (int) Math.round(fibn / sqrt5);}
}