[leetcode]3Sum Closest @ Python
原題地址：http://oj.leetcode.com/problems/3sum-closest/ 題意：數組中每三個元素進行求和，找出所有和中大小最接近target的和，並返回這個和與target之間的差值。 解題思路：使用一個變量mindiff來監測和與target之間的差值，如果差值 ...
原文：[leetcode]3Sum @ Python
原題地址：http: oj.leetcode.com problems sum 題意：從一個數組中找到三個數，使這三個數的和為 。有可能存在多組解，也有可能存在重復的解，所以需要去重。比如：num , , , , , 那么存在兩組解： , , , , , ，解中的數需要是從小到大排序狀態。 解題思路： ，先將數組排序。 ，排序后，可以按照TwoSum的思路來解題。怎么解呢 可以將num i 的相反 ...
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