Given an array of integers, find two numbers such that they add up to a specific target number. The function twoSum should return indices of the two numbers such that they add up to the target, where index1 must be less than index2. Please note that
题目原文 Selection in two sorted arrays. Given two sorted arrays a[] and b[], of sizes n1 and n2, respectively, design an algorithm to find the kth largest key. The order of growth of the worst case running time of your algorithm should be logn, where n
题目: 一个整型数组里除了两个数字之外,其他的数字都出现了两次.请写程序找出这两个只出现一次的数字. 分析: 我们知道,两个相同的数字异或的结果等于0,所以利用这个性质将数组中所有的数字异或,求得的结果,就是两个只出现一次数字异或的结果.而且这两个数字异或的结果肯定不为0,或者说结果数字二进制表示一定有一位为1,我们以第一个为1的位置作为区分数组中数字的条件,这样便能将两个数字分到两个数组中,再分别异或每一个数组中的数字,最后的结果便是这两个只出现了一次的数字. 程序: C++ class So
程序设计思想: 依次将数组划分开,先判断一个元素的单个数组大小,接下来两个,依次上升,最后将所得结果进行比较赋值,输出最大结果. 1 package ketangTest; //张生辉,康治家 2017.3.20 public class Test { public static void main(String args[]){ int b[]={-7,9,-2,84}; int a[]={-7,9,-2,84,-7,9,-2,84}; int max,max2,max3,max4; max=
public static void main(String[] args) { int x=0; int y=0; int a[][]=new int[5][5]; int max=-Integer.MAX_VALUE; for (int i = 0; i < a.length; i++) { for (int j = 0; j < a.length; j++) { a[i][j]=(int)(Math.random()*100); // System.out.printf(a[i][j]+
Given a sorted array of integers, find the starting and ending position of a given target value. Your algorithm's runtime complexity must be in the order of O(log n). If the target is not found in the array, return [-1, -1]. For example, Given [5, 7,
那是写一个类别来处理数字元素并收集起来. 开发程序,解决方法不是唯一的.相同的功能实现,方法不止一个. 参考下面代码: class Ak { private string[] _stringArray; public Ak(string[] stringArray) { this._stringArray = stringArray; } public IEnumerable<Digit> Result() { // var result = new List<Digit>();
Suppose a sorted array is rotated at some pivot unknown to you beforehand. (i.e., 0 1 2 4 5 6 7 might become 4 5 6 7 0 1 2). You are given a target value to search. If found in the array return its index, otherwise return -1. You may assume no duplic