198. House Robber #38
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oda
reviewed
Jun 9, 2025
| if (nums.length == 0) { | ||
| return 0; | ||
| } | ||
| int[][] currentMaxSum = new int[nums.length][2]; |
fuga-98
reviewed
Jun 9, 2025
| int[] memo = new int[nums.length]; | ||
| Arrays.fill(memo, -1); | ||
| memo[0] = nums[0]; | ||
| robHelper(nums, memo, nums.length - 1); |
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ヘルパー関数には返り値があるのにそれを受け取っていない点がひっかかりました。
副作用を利用して動くのであれば、それが分かるような変数名やコメントを書いてほしいと感じました。
副作用に関して
olsen-blue/Arai60#29 (comment)
nodchip
reviewed
Jun 10, 2025
| public int rob(int[] nums) { | ||
| if (nums.length == 0) { | ||
| return 0; | ||
| } |
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単独の if 文と if-else if が混ざっているのがやや違和感がありました。いずれも比較される対象が nums.length のため、統一した書き方で書いたほうが、読んでいて混乱が少なくなると思いました。 else if で十分だと思います。
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問題URL: https://leetcode.com/problems/house-robber/description/