419.关于学习

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• 419. Battleships in a Board

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  题目描述 Given an 2D board, count how many battleships are in...

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• [LeetCode]419. Battleships in a

  题目 Given an 2D board, count how many battleships are in i...

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  思路（代码优化了该思路） 初始化：count = 0 遍历二维数组：遇到'X'时判断当前块的上方和左方存在'X'与...

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  【Leetcode】419. Battleships in a