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Given a 2D integer matrix M representing the gray scale of an image, you need to design a smoother to make the gray scale of each cell becomes the ave 阅读全文
posted @ 2018-04-01 23:37
bonelee
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>>> a=[[0]*3 for i in range(3)]>>> a[[0, 0, 0], [0, 0, 0], [0, 0, 0]]>>> a[1][1]=121>>> a[[0, 0, 0], [0, 121, 0], [0, 0, 0]]>>> a[0][0]=11>>> a[[11, 0 阅读全文
posted @ 2018-04-01 23:37
bonelee
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Suppose Andy and Doris want to choose a restaurant for dinner, and they both have a list of favorite restaurants represented by strings. You need to h 阅读全文
posted @ 2018-04-01 22:46
bonelee
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参数解释： （1）iterable指定要排序的list或者iterable，不用多说； （2）cmp为函数，指定排序时进行比较的函数，可以指定一个函数或者lambda函数，如： students为类对象的list，没个成员有三个域，用sorted进行比较时可以自己定cmp函数，例如这里要通过比较第三 阅读全文
posted @ 2018-04-01 22:26
bonelee
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Given n points in the plane that are all pairwise distinct, a "boomerang" is a tuple of points (i, j, k) such that the distance between i and j equals 阅读全文
posted @ 2018-04-01 22:16
bonelee
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Given a non-empty array of non-negative integers nums, the degree of this array is defined as the maximum frequency of any one of its elements. Your t 阅读全文
posted @ 2018-04-01 21:07
bonelee
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Reverse a singly linked list. click to show more hints. 精简下代码： 递归解： dfs 记得程序员面试金典里专门提过！ 阅读全文
posted @ 2018-04-01 16:46
bonelee
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Given scores of N athletes, find their relative ranks and the people with the top three highest scores, who will be awarded medals: "Gold Medal", "Sil 阅读全文
posted @ 2018-04-01 12:29
bonelee
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Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the arr 阅读全文
posted @ 2018-04-01 10:36
bonelee
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