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Description Given two 1d vectors, implement an iterator to return their elements alternately. Example Example1 Input: v1 = [1, 2] and v2 = [3, 4, 5, 6 阅读全文
posted @ 2019-12-21 22:47
YuriFLAG
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Description Given a 2D grid, each cell is either an house 1 or empty 0 (the number zero, one), find the place to build a post office, the distance tha 阅读全文
posted @ 2019-12-21 22:45
YuriFLAG
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Description Given a 2D grid, each cell is either a wall 2, an house 1 or empty 0 (the number zero, one, two), find a place to build a post office so t 阅读全文
posted @ 2019-12-21 22:42
YuriFLAG
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Description Design an iterator over a binary search tree with the following rules: Description Design an iterator over a binary search tree with the f 阅读全文
posted @ 2019-12-21 22:40
YuriFLAG
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Description Given an array of n * m matrix, and a moving matrix window (size k * k), move the window from top left to bottom right at each iteration, 阅读全文
posted @ 2019-12-21 22:36
YuriFLAG
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Description Given an integer array, find a subarray with sum closest to zero. Return the indexes of the first number and last number. Description Give 阅读全文
posted @ 2019-12-21 22:35
YuriFLAG
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Description Given an array of n positive integers and a positive integer s, find the minimal length of a subarray of which the sum ≥ s. If there isn't 阅读全文
posted @ 2019-12-21 22:33
YuriFLAG
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Description Description Find the kth smallest number in a row and column sorted matrix. Each row and each column of the matrix is incremental. Example 阅读全文
posted @ 2019-12-21 22:32
YuriFLAG
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Description Given an unsorted array, find the maximum difference between the successive elements in its sorted form. Description Given an unsorted arr 阅读全文
posted @ 2019-12-21 22:28
YuriFLAG
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Description Given an positive integer array A and an interval. Return the number of subarrays whose sum is in the range of given interval. Description 阅读全文
posted @ 2019-12-21 22:27
YuriFLAG
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