template<class InputIterator> typename iterator_traits<InputIterator>::difference_type distance (InputIterator first, InputIterator last); Return distance between iterators Calculates the number of elements between first and last. // advance e…

巧妙的封装 暴露一个访问地址xapp.config.js module.exports = { api_host: `https://a.squmo.com/yizu` } 继续引入,加暴露api.config.js const xapp = require('./xapp.config.js'); // 注册接口 module.exports = { GetAddr: `${xapp.api_host}/GetAddr/index` ... } 继续暴露,加request处理 method.j…

迭代器的头文件中定义了4个实现迭代器模板的函数模板. 1.advance(iterator,num):将迭代器iterator 移动了num个位置 2.distance(iterator1,iterator2):返回两个迭代器之间的元素的个数 3.next(iterator,n):将iterator正向偏移n之后所指向位置的一个迭代器4.prev(iterator,n):返回iterator反向偏移n之后的所指向的一个迭代器 #include <numeric> #include <it…

Given a string S and a character C, return an array of integers representing the shortest distance from the character C in the string. Example 1: Input: S = "loveleetcode", C = 'e' Output: [3, 2, 1, 0, 1, 0, 0, 1, 2, 2, 1, 0]  Note: S string len…

In a row of seats, 1 represents a person sitting in that seat, and 0 represents that the seat is empty. There is at least one empty seat, and at least one person sitting. Alex wants to sit in the seat such that the distance between him and the closes…

迭代器的头文件中定义了4个实现迭代器模板的函数模板. .advance(iterator,num):将迭代器iterator 移动了num个位置 .distance(iterator1,iterator2):返回两个迭代器之间的元素的个数 .next(iterator,n):将iterator正向偏移n之后所指向位置的一个迭代器 .prev(iterator,n):返回iterator反向偏移n之后的所指向的一个迭代器 #include <iostream> #include <vect…

In a row of seats, 1 represents a person sitting in that seat, and 0 represents that the seat is empty. There is at least one empty seat, and at least one person sitting. Alex wants to sit in the seat such that the distance between him and the closes…

The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Now your job is to find the total Hamming distance between all pairs of the given numbers. Example: Input: 4, 14, 2 Output: 6 Explanat…

The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two integers x and y, calculate the Hamming distance. Note:0 ≤ x, y < 231. Example: Input: x = 1, y = 4 Output: 2 Explanation: 1…

Given a non-empty string str and an integer k, rearrange the string such that the same characters are at least distance k from each other. All input strings are given in lowercase letters. If it is not possible to rearrange the string, return an empt…