update: 添加问题“3761.镜像对之间最小绝对距离”的代码和题解#1511
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Signed-off-by: Tisfy <Tisfy@foxmail.com>
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Pull request overview
This PR adds the new LeetCode problem 3761. 镜像对之间最小绝对距离 to the repository (code + README index entry), and cleans up the existing 2515 solution files by consolidating the accepted logic into the main file.
Changes:
- Add C++ solution for LeetCode 3761 and index it in
README.md. - Fix the iteration bound in LeetCode 2515 solution and remove an extra
_ACduplicate file. - Remove
.commitmsgfrom the repo.
Reviewed changes
Copilot reviewed 6 out of 6 changed files in this pull request and generated 1 comment.
Show a summary per file
| File | Description |
|---|---|
| README.md | Adds the 3761 entry (problem + solution links) to the problem list table. |
| Codes/3761-minimum-absolute-distance-between-mirror-pairs.cpp | New C++ solution implementation for LeetCode 3761. |
| Codes/2515-shortest-distance-to-target-string-in-a-circular-array.cpp | Fixes the loop bound to correctly handle the farthest index in even-length arrays; removes a stale comment. |
| Codes/2515-shortest-distance-to-target-string-in-a-circular-array_AC.cpp | Deletes the redundant accepted-version file after consolidation. |
| .commitmsg | Removes the committed local commit-message helper file. |
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PR 概要
本 PR 添加了 LeetCode 3761「镜像对之间最小绝对距离」的 C++ 解题代码和题解文档,同时修复了 2515 题的循环边界 bug(n/2 → n/2+1),清理了不再需要的 _AC 后缀文件和 .commitmsg,并在 README 中添加了新题目索引。
代码正确性分析
| 文件 | 变更类型 | 正确性 | 说明 |
|---|---|---|---|
Codes/3761-...cpp |
新增 | ✅ 正确 | 哈希表解法,遍历时维护 reverse 映射,逻辑清晰 |
Codes/2515-...cpp |
修改 | ✅ 正确 | 修复循环边界 n/2 → n/2+1,避免遗漏对称位置元素 |
Codes/2515-..._AC.cpp |
删除 | ✅ 合理 | 修复后原 AC 文件冗余,合并到主文件 |
.commitmsg |
删除 | ✅ 合理 | 临时提交信息文件清理 |
README.md |
修改 | ✅ 正确 | 新增 3761 题目索引行 |
| 题解 Markdown | 新增 | 题解正文有措辞问题(见下方 P3) |
潜在问题与建议
P3(低优先级)
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inf常量值硬编码为1000000(3761文件第 11 行)当前
constexpr int inf = 1000000;虽然对于本题nums.length ≤ 10^5足够,但若直接使用INT_MAX更具通用性和自解释性,也避免了未来题目约束变更导致的潜在风险。见行内 suggestion。 -
题解文档措辞小问题(
Solutions/LeetCode 3761.镜像对之间最小绝对距离.md)原文:"由于合法的
$reverse(nums[i])==nums[j]$ 必须满足$i\lt j$ ,所以直接枚举前面所以不必考虑前面一个元素和后面某元素的 reverse 相等的情况。""所以"出现了两次,语义不通顺。建议改为:"由于合法的
$reverse(nums[i])==nums[j]$ 必须满足$i\lt j$ ,所以只需从左到右枚举,不必考虑后面元素的 reverse 与前面元素匹配的情况。"
总结
| 维度 | 评级 | 说明 |
|---|---|---|
| 正确性 | ⭐⭐⭐⭐⭐ | 算法逻辑正确,2515 bug fix 合理 |
| 可读性 | ⭐⭐⭐⭐ | 代码简洁清晰,命名合理 |
| 健壮性 | ⭐⭐⭐⭐ | inf 硬编码为小瑕疵,不影响正确性 |
| 文档 | ⭐⭐⭐⭐ | 题解完整,有小措辞问题 |
最终合并建议
✅ 建议合并。代码正确,变更合理。上述 P3 问题均为低优先级改进建议,不阻塞合并。
Review by AI Assistant
By newSolution.py using GH on Windows | close: #1510