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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 @ 2018-09-30 00:14
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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 @ 2018-09-29 23:50
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Given an array of integers that is already sorted in ascending order, find two numbers such that they add up to a specific target number. The function 阅读全文
posted @ 2018-09-29 23:22
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We have two special characters. The first character can be represented by one bit 0. The second character can be represented by two bits (10 or 11). N 阅读全文
posted @ 2018-09-29 22:57
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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 @ 2018-09-29 20:51
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Say you have an array for which the ith element is the price of a given stock on day i. Design an algorithm to find the maximum profit. You may comple 阅读全文
posted @ 2018-09-29 20:31
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Given an array of size n, find the majority element. The majority element is the element that appears more than⌊ n/2 ⌋ times. You may assume that the 阅读全文
posted @ 2018-09-29 20:07
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Given an array of integers where 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once. Find all the elements of [1, n] 阅读全文
posted @ 2018-09-29 15:04
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Given an array nums, write a function to move all 0's to the end of it while maintaining the relative order of the non-zero elements. Example: 原题地址: M 阅读全文
posted @ 2018-09-29 14:26
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Given a non-empty 2D array grid of 0's and 1's, an island is a group of 1's (representing land) connected 4-directionally (horizontal or vertical.) Yo 阅读全文
posted @ 2018-09-29 13:18
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