{"action":"opened","issue":{"url":"https://api.github.com/repos/liuxinyu95/AlgoXY/issues/18","labels_url":"https://api.github.com/repos/liuxinyu95/AlgoXY/issues/18/labels{/name}","comments_url":"https://api.github.com/repos/liuxinyu95/AlgoXY/issues/18/comments","events_url":"https://api.github.com/repos/liuxinyu95/AlgoXY/issues/18/events","html_url":"https://github.com/liuxinyu95/AlgoXY/issues/18","id":95847112,"number":18,"title":"chapter 4 delta","user":{"login":"ZhuangER","id":5662692,"avatar_url":"https://avatars.githubusercontent.com/u/5662692?v=3","gravatar_id":"","url":"https://api.github.com/users/ZhuangER","html_url":"https://github.com/ZhuangER","followers_url":"https://api.github.com/users/ZhuangER/followers","following_url":"https://api.github.com/users/ZhuangER/following{/other_user}","gists_url":"https://api.github.com/users/ZhuangER/gists{/gist_id}","starred_url":"https://api.github.com/users/ZhuangER/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ZhuangER/subscriptions","organizations_url":"https://api.github.com/users/ZhuangER/orgs","repos_url":"https://api.github.com/users/ZhuangER/repos","events_url":"https://api.github.com/users/ZhuangER/events{/privacy}","received_events_url":"https://api.github.com/users/ZhuangER/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-07-18T18:20:39Z","updated_at":"2015-07-18T18:20:39Z","closed_at":null,"body":"根据4.1中平衡因子的定义，为|L| - |R|\r\n但在4.11中delta>=0的解释为the height of right sub tree isn't less than the height of left sub tree\r\n如果根据4.1来推断应该是|L|>=|R|\r\n不知道是否我的理解错误，还是作者写错了？"}}