LeetCode 15. 三數之和（3Sum）
排序，從一個數開始遍歷，若該數大於0，后面的數不可能與其相加和為0，所以跳過；否則該數可能是滿足要求的第一個數 ...
原文：[LeetCode] 15. 3Sum 三數之和
Given an arraySofnintegers, are there elementsa,b,cinSsuch thata b c Find all unique triplets in the array which gives the sum of zero. Note: Elements in a triplet a,b,c must be in non descending ord ...
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一.題目鏈接：https://leetcode.com/problems/3sum/ 二.題目大意： 3和問題是一個比較經典的問題，它可以看做是由2和問題(見http://www.cnblogs.com/wangkundentisy/p/7525356.html)演化而來的。題目的具體要求 ...
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