Q67. Examine the data in the CUST_NAME column of the CUSTOMERS table.CUST_NAME-——————Renske LadwigJason MallinSamuel McCainAllan MCEwenIrene MikilineniJulia NayerYou need to display customers’ second
Description Given two binary strings, return their sum (also a binary string). For example, a = “11” b = “1” Return “100”. Solution class Solution {public:string addBinary(string a, string b)
前面在获取功能,我们有很多方法没有介绍,这些方法都是和Map遍历相关结合使用的方法。这篇,我们来看看Map如何进行遍历和如何进行键找值。 通过阅读API,我们看到Map接口并没有Iterator这样的迭代器方法,那么HashMap对象是如何来遍历元素的呢。下面,我们分别用Set集合的迭代器方法和增强for循环去实现HashMap集合遍历。在之前,我们需要阅读Map API
题目: Rotate an array of n elements to the right by k steps.For example, with n = 7 and k = 3, the array [1,2,3,4,5,6,7] is rotated to [5,6,7,1,2,3,4].Note:Try to come up as many solutions as you can,
题目: 题解: void reserve(char* s) {int len = strlen(s);for (int i = 0; i < len / 2; i++) {char t = s[i];s[i] = s[len - i - 1], s[len - i - 1] = t;}}char* addBinary(char* a, char* b) {reserve(a);reser
题目: 题解: class Solution {public String addBinary(String a, String b) {StringBuffer ans = new StringBuffer();int n = Math.max(a.length(), b.length()), carry = 0;for (int i = 0; i < n; ++i) {carry +=
题目: 题解: class Solution {public:string addBinary(string a, string b) {string ans;reverse(a.begin(), a.end());reverse(b.begin(), b.end());int n = max(a.size(), b.size()), carry = 0;for (size_t i =