摘要：
Given a non-negative integernum, repeatedly add all its digits until the result has only one digit.For example:Givennum = 38, the process is like:3 + ... 阅读全文
posted @ 2015-09-12 23:34
vincently
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Write a function to delete a node (except the tail) in a singly linked list, given only access to that node.Supposed the linked list is1 -> 2 -> 3 -> ... 阅读全文
posted @ 2015-09-12 23:14
vincently
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Find the contiguous subarray within an array (containing at least one number) which has the largest product.For example, given the array[2,3,-2,4],the... 阅读全文
posted @ 2015-09-12 17:52
vincently
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答案是7次。1. 首先将25匹马分成5组a、b、c、d、e进行比赛。比赛的次数就是5次。得到每组的第一名，分别编号a1,b1,c1,d1,e1。2. 然后我们将每组的第一名进行比赛，得出结果。假设a1>b1>c1>d1>e1。（大于号表示a1比b1快，1表示第一名）。在这个地方我们可以推断出，a1是... 阅读全文
posted @ 2015-09-12 14:46
vincently
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