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题目： Write an efficient algorithm that searches for a value in an m x n matrix. This matrix has the following properties: Integers in each row are sort 阅读全文
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题目： Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element. For 阅读全文
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题目： 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 阅读全文
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题目： Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For example, given the array [-2,1,-3,4,- 阅读全文