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catalogue 1, Definition of array 1. Definition of one-dimensional array 2. Definition of two-dimensional array 2, Storage structure of array 1. Array storage mode 2. Storage mode of two-dimensional array (1) Priority storage by row (2) priority storage mode by column 3, Matrix 1. Definition of matrix 2. Definition of special matrix ...

1. Structure byte alignment 1.1 try #include <stdio.h> struct S1{ char c1; char c2; int n; }; struct S2{ char c1; int n; char c2; }; struct S3{ int n; char c1; char c2; }; int main(){ printf("sizeof(struct S1) = %ld\n",sizeof(struct S1)); printf("sizeof(struct S2) = %ld\n",sizeof(struct S2)); prin ...

A house plate making Title Description Calculate the number of characters 2 from 1 to 2020. thinking The amount of data is very small, direct violence, and the number of 2 can be counted for each number. code #include<iostream> #include<algorithm> using namespace std; int main() { int ans = 0; for (int i = 1; i <= 2020; i ...

Notice before reading Key points introduction and brief statement. The seventh computer question is be ing updated Topic content Problem description The main office and scientific research buildings of Beihang include new main building, Yifu Building, such as heart building, office building, library, main building, building 1, etc;. Be ...

2021 12th Lanqiao cup provincial tournament group B C/C++ preface: Recall that I participated in the blue bridge cup for the first time last year. At that time, I was a freshman and full of enthusiasm. Although I only learned c language and had only a little contact with c + +, I signed up for the competition at the suggestion of my senio ...

catalogue Familiar with circular linked list Definition of circular chain header node and data node Creation of circular linked list Insertion of circular linked list data node Deletion of circular linked list data node Traversal and printing of circular linked list Complete code Familiar with circular linked list After learning the ...

Deep analysis of data storage in memory Data type introduction Basic built-in types char //Character data type short //Short int //plastic long //Long integer long long //Longer shaping float //Single-precision floating-point double //Double precision floating point number Meaning of type: 1. Use this type t ...

preface The main content of this paper is to realize the touch key drive of the kettle, and the touch key chip adopts TS02N. 1, Key function setting of intelligent kettle The key functions of the intelligent kettle are set as follows. Before realizing the functions, we must first realize the drive of the key acquisition chip. functi ...

array int a0,a1; -> This thing cannot be referenced through a loop. The name cannot be split. Arrays are introduced into all C languages Array definition: An array is a collection of data (variables) of the same type ​ int a0,a1…a99; -> If it is defined by an array - > a [100] represents 100 integer data ​ One dimensional a ...

Loop structure (composed of loop statements such as while and for) 1, Problem introduction: Requirements: sum = 1 + 2 + ... + 100 sum = 0; i = 1; sum += i; i++; sum += i; i++; sum += i; i++; sum += i; i++; sum += i; i++; sum += i; ........ /*-> If we do this code manually, it's obvious that you'll go crazy All right, let the computer g ...