leetcode 457. Circular Array Loop
先回顧一下鏈表的類似問題 leetcode 141 判定鏈表是否有環 慢指針slowPtr每次后移1個結點。快指針fastPtr每次后移2個結點 LeetCode 142 找出環的入口點（起點） 當fast按照每次2步，slow每次一步的方式走，發現fastPtr和slowPtr重合 ...
原文：[LeetCode] 457. Circular Array Loop 環形數組循環
You are given acirculararraynumsof positive and negative integers. If a numberkat an index is positive, then move forwardksteps. Conversely, if it s negative k , move backwardksteps. Since the array ...
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