[LeetCode] 1027. Longest Arithmetic Subsequence 最長的等差數列
Given an array A of integers, return the length of the longest arithmetic subsequence in A. Recall that a subsequence of A is a list A[i_1], A[i_2 ...
原文：【leetcode】1027. Longest Arithmetic Sequence
題目如下： Given an arrayAof integers, return thelengthof the longest arithmetic subsequence inA. Recall that asubsequenceofAis a listA i , A i , ..., A i k with lt i lt i lt ... lt i k lt A.length , and t ...
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