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] 923. 3Sum With Multiplicity 三數之和的多種情況
Given an integer array A , and an integer target , return the number oftuples i, j, k such that i lt j lt k and A i A j A k target . As the answer can be very large, return it modulo . Example : Exam ...
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