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class Solution {
public:
int jumpFloorII(int number) {
if (number == 1) return 1;
else return 2 * jumpFloorII(number - 1);
}
};
class Solution { public: int jumpFloorII(int number) { long long fibonicc = 1; for (int i = 2;i <= number;i++) fibonicc *= 2; return fibonicc; } };
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原文地址:http://www.cnblogs.com/code-changeworld/p/4531056.html