Given 17 arrays,every array is ascending.The task is to get the median of all these numbers. 0 1 2 3 4           this is an array with 5 elements,the median is (5/2). 0 1 2 3 4 5        this is an array with 6 elements,the median is (6/2). If we inde…

Unique Ascending Array Time Limit: 2 Seconds      Memory Limit: 65536 KB Given an array of integers A[N], you are asked to decide the shortest array of integers B[M], such that the following two conditions hold. For all integers 0 <= i < N, there ex…

题目: There are two sorted arrays A and B of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)). 题解: 首先我们先明确什么是median,即中位数. 引用Wikipedia对中位数的定义: 计算有限个数的数据的中位数的方法是:把所有的同类数据按照大小的顺序排列…

There  are two sorted arrays A and B of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)). 这个题是求两个已排数组的中位数,更一般的就是求两个已排数组的第k大的数. 自己想到的解决方法有一个先用合并排序将两个数组进行排序得到一个排列后的数组,在遍历找到第k到的数…

PHP中的数组是一个有序映射(1对1的关系 key->value).Array是一个综合体:可表示数组.字典.集合等. key可以是int或string.value可以是任意类型. key如下情况会强制转换:1.包含合法整型值的字符串=>整型. "8"=>8 实际存储82.浮点数=>整型. 8.7=>8 小数点会被舍去3.布尔类型=>类型. true=>1,false=>0 实际存储为0或14.Null=>“” 实际存储"…

C. Median time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output A median in an array with the length of n is an element which occupies position number  after we sort the elements in the non-decr…

题目Median of Two Sorted Arrays(难度Hard) 方案1,数组合并&排序调用Java方法 import java.util.* class Solution { fun findMedianSortedArrays(nums1: IntArray, nums2: IntArray): Double { val lenNums1 = nums1.size val lenNums2 = nums2.size val array = Arrays.copyOf(nums1,…

There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be O(log (m+n)). You may assume nums1 and nums2 cannot be both empty. Example 1: nums1 = [1, 3]…

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 example,Given [3,2,1,5,6,4] and k = 2, return 5. ［一句话思路］:快速选择:先利用pivot进行两侧的排序,再选一侧递归查找. ［一刷］: Kth函数中要调用一…

1 - 从strStr谈面试技巧与代码风格 必做题: 13.字符串查找 要求:如题 思路:(自写AC)双重循环,内循环读完则成功 还可以用Rabin,KMP算法等 public int strStr(String source, String target) { if (source == null || target == null) { return -1; } char[] sources = source.toCharArray(); char[] targets = target.to…