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654. Maximum Binary Tree Given an integer array with no duplicates. A maximum tree building on this array is defined as follow: The root is the maximu 阅读全文
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In a 2 dimensional array grid, each value grid[i][j] represents the height of a building located there. We are allowed to increase the height of any n 阅读全文
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Sorry, user “user” is not allowed to execute '/usr/bin/apt-get update' as root on 不使用sudo命令提示权限不够,使用sudo命令提示不能 as root on root 解决方案 运行一次 sudo su sudo 阅读全文
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https://cloud.baidu.com/doc/OCR/OCR-Java-SDK/24.5C.E5.BF.AB.E9.80.9F.E5.85.A5.E9.97.A8.html#.E5.AE.89.E8.A3.85OCR.20Java.20SDK 注册百度的开发者后,获得自己对应的App ID 阅读全文