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Not Equal: Everything in this space must be different. The answer is 6-1, placed vertically; 6-3, placed horizontally; 5-0, placed horizontally; 1-4, placed vertically; 2-4, placed horizontally.，推荐阅读下载安装 谷歌浏览器 开启极速安全的 上网之旅。获取更多信息
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memcpy(testArr, arr, n * sizeof(int));