Frog jump steps, perverted version

A frog can jump on a Class 1 level, you can also hop on level 2 ...... n It can also jump on stage. The frog jumped seeking a total of n grade level how many jumps.

We know that the law is like solving

class Solution {
public:
    int jumpFloorII(int number) {
        int i = 1;
        while(--number)
        {
            i *= 2;
        }
        return i;
    }
};

A frog can jump on a Class 1 level, you can also hop on level 2. The frog jumped seeking a total of n grade level how many jumps (the order of different calculation different results)

class Solution {
public:
    int jumpFloor(int number) {
        if(number <= 1)
            return  1;
        return jumpFloor(number-1)+jumpFloor(number-2);
    }
};