随笔分类 -  C++

List
摘要：Lists are sequence containers that allow non-contiguous memory allocation. As compared to vector, the list has slow traversal, but once a position has 阅读全文
posted @ 2023-02-21 10:39 shendawei 阅读(54) 评论(0) 推荐(0)
Pair
摘要：Pair is used to combine together two values that may be of different data types. The pair container is a simple container defined in header consisting 阅读全文
posted @ 2023-02-21 10:24 shendawei 阅读(105) 评论(0) 推荐(0)
String
摘要：5 ways to create an Array of String Using Pointers Using 2-D Array Using the String Class Using the Array Class Using the Vector Class Conclusion: Out 阅读全文
posted @ 2023-02-09 11:24 shendawei 阅读(42) 评论(0) 推荐(0)
Difference between "array" and "&array"
摘要：They both are resulting in same address but they are different types of addresses. Basically, “array” is a “pointer to the first element of array” but 阅读全文
posted @ 2023-02-02 10:19 shendawei 阅读(34) 评论(0) 推荐(0)
Command line arguments (argc, argv in main function)
摘要：argc (ARGument Count) is int and stores number of command-line arguments passed by the user including the name of the program. So if we pass a value t 阅读全文
posted @ 2023-02-02 09:23 shendawei 阅读(31) 评论(0) 推荐(0)
class
摘要：1. Constructor Default constructors Parameterized constructors Copy constructors // C++ program to demonstrate constructors #include <bits/stdc++.h> u 阅读全文
posted @ 2023-01-10 19:23 shendawei 阅读(44) 评论(0) 推荐(0)
pointer
摘要：Note In C, all function arguments are passed by value. (including arrays: This means that when an array is passed as an argument to a function, a copy 阅读全文
posted @ 2023-01-06 14:37 shendawei 阅读(74) 评论(0) 推荐(0)
global and local
摘要：https://www.geeksforgeeks.org/scope-of-variables-in-c/ 阅读全文
posted @ 2022-12-23 10:57 shendawei 阅读(20) 评论(0) 推荐(0)
try
摘要：1. do not need exception message try { // } catch (...) { // } 2. need exception message try { // } catch (const std::exception& e) // reference to th 阅读全文
posted @ 2022-12-22 18:18 shendawei 阅读(35) 评论(0) 推荐(0)
array
摘要：1. initial // https://en.cppreference.com/w/c/language/array_initialization 2. get max or min element // array int a[6] = { 1, 45, 54, 71, 76, 12 }; a 阅读全文
posted @ 2022-12-22 14:39 shendawei 阅读(88) 评论(0) 推荐(0)
i++ or ++i
摘要：/*************** In for Loop ***************/ // You'd better always use ++i. // Since the logic is the same while i++ needs to save old value before 阅读全文
posted @ 2022-12-20 10:08 shendawei 阅读(25) 评论(0) 推荐(0)
vector
摘要：Vectors are same as dynamic arrays with the ability to resize itself automatically when an element is inserted or deleted, with their storage being ha 阅读全文
posted @ 2022-12-06 09:40 shendawei 阅读(47) 评论(0) 推荐(0)
sort
摘要：1. Common sort Example from cplusplus.com: // sort algorithm example #include <iostream> // std::cout #include <algorithm> // std::sort #include <vect 阅读全文
posted @ 2022-12-05 15:42 shendawei 阅读(117) 评论(0) 推荐(0)