题解 | #跳台阶#

#include <locale>
class Solution {
public:
    int jumpFloor(int number) {
        if(number==1) return 1;
        if(number==2)return 2;
        int a=1;
        int b=2;
        int temp=0;
        for(size_t i=3;i<=number;++i){
            temp=(a+b)%1000000007;
            a = b;
            b = temp;
        }
        return temp;
    }
};