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［抄题］： Given a binary search tree with non-negative values, find the minimum absolute difference between values of any two nodes. Example: [暴力解法]： 时间分析 阅读全文
posted @ 2018-03-14 10:06
苗妙苗
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［抄题］： Write a function that takes an unsigned integer and returns the number of ’1' bits it has (also known as the Hamming weight). For example, the 3 阅读全文
posted @ 2018-03-13 22:16
苗妙苗
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［抄题］： The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, 阅读全文
posted @ 2018-03-13 21:48
苗妙苗
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［抄题］： Given an array of integers, every element appears twice except for one. Find that single one. Note:Your algorithm should have a linear runtime c 阅读全文
posted @ 2018-03-13 21:38
苗妙苗
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［抄题］： There is a fence with n posts, each post can be painted with one of the k colors. You have to paint all the posts such that no more than two adj 阅读全文
posted @ 2018-03-13 20:36
苗妙苗
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［抄题］： There are a row of n houses, each house can be painted with one of the three colors: red, blue or green. The cost of painting each house with a 阅读全文
posted @ 2018-03-13 15:41
苗妙苗
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［抄题］： On a staircase, the i-th step has some non-negative cost cost[i] assigned (0 indexed). Once you pay the cost, you can either climb one or two st 阅读全文
posted @ 2018-03-13 11:52
苗妙苗
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Immutable ［抄题］： Given an integer array nums, find the sum of the elements between indices i and j (i ≤ j), inclusive. Example: [暴力解法]： 时间分析：n 空间分析：n ［ 阅读全文
posted @ 2018-03-13 10:09
苗妙苗
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［抄题］： Design a logger system that receive stream of messages along with its timestamps, each message should be printed if and only if it is not printe 阅读全文
posted @ 2018-03-12 21:48
苗妙苗
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［抄题］： Given a stream of integers and a window size, calculate the moving average of all integers in the sliding window. For example, [暴力解法]： 时间分析： 空间分 阅读全文
posted @ 2018-03-12 20:31
苗妙苗
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