[LeetCode] Combinations
要求 給定兩個整數（n,k）,返回長度為k，從1到n的所有組合（注意1.組合沒有順序 2. [2，3]和[3，2]為同一組，取前者小於后者的那一組）。 例如（4，2），結果為： ...
原文：LeetCode:Combinations
題目鏈接 Given two integers n and k, return all possible combinations of k numbers out of ... n. For example, If n and k , a solution is: 分析： 求所有的組合 算法 ：遞歸解法，仿照根據LeetCode:Subsets的算法 解法，每一個元素有兩種狀態：選擇 不選擇 算 ...
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