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问题：给定一个有序序列1~n，要你将其完全打乱，要求每个元素在任何一个位置出现的概率均为1/n。 解决方案：依次遍历数组，对第n个元素，以1/n的概率与前n个元素中的某个元素互换位置，最后生成的序列即满足要求，1/n的概率可通过rand() % n实现。见如下程序： void swap(int*... 阅读全文
posted @ 2016-05-08 18:31
Free_Open
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Binary Tree Level Order Traversal II My Submissions QuestionEditorial Solution Total Accepted: 79742 Total Submissions: 234887 Difficulty: ... 阅读全文
posted @ 2016-05-08 18:25
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Binary Tree Level Order Traversal My Submissions QuestionEditorial Solution Total Accepted: 102531 Total Submissions: 312211 Difficulty: Easy Given a 阅读全文
posted @ 2016-05-08 16:16
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Binary Tree Inorder Traversal My Submissions QuestionEditorial Solution Total Accepted: 123484 Total Submissions: 310732 Difficulty: Medium... 阅读全文
posted @ 2016-05-08 12:39
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