爬臺階問題(每一次爬一階臺階,或者每一次爬二階臺階)

package leetcode; /*You are climbing a stair case. It takes n steps to reach to the top.數組 Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb to the top?*/ //爲了節省程序的時

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