C LANGUAGE

  USING VECTOR CLASS Note: std::cout, std::cin, std::endl are used to resolve compilation error, you can use cout, cin, endl instead of that. #include <iostream> #include <vector> using namespace std; void display(vector<int> &v){ std::cout<<"Displaying the vector: "; for (int i=0;i< v.size();i++) { std::cout << v[i] <<" "; // std::cout << v.at(i) <<" "; } std::cout << "" << std::endl; } int main() { std::cout<<std::endl<<"\t\tZero length vector"<<std::endl; vector<int> vec1; int element,size=5; //cplusplus vector methods std::cout << "Enter the size of your vector: "; std::cin>>size; std::cout<<std::endl<<"\t\tpush_back in vector"<<std::endl; for(int i=0; i<size; i++) { std::cout << "Enter an element to add to the vector: "; std::cin>

  In this "MATRIX MULTIPLICATION PROGRAM" article, You can learn about matrix multiplication programs, matrix multiplication basics, dimensions, types of matrices, scalar multiplication, dot product, rule of multiplying matrices, algorithm, c and python program, and matrix multiplication program using python numpy. MATRIX MULTIPLICATION BASICS A matrix is a rectangular arrangement of numbers into rows and columns. it is also known as a 2-D array. Each cell contains a number and each number in a matrix is referred to as a matrix element or entry. The dimensions of the matrix tell its size: the number of rows and columns of the matrix, in that order. For example, MULTIPLYING MATRICES Since Matrix A has one row and three columns, so it's dimension is 1 × 3, pronounced as "1 by 3". Similarly, Matrix B has three rows and two columns, so its dimensions are 3 × 2. No of rows comes first then no of columns. (Dimension) Row is treated as

  PROGRAM 1: DEFINE A CLASS MAT OF SIZE M*N, DEFINE +, -, AND * OPERATOR OF MAT OBJECTS. WRITE A CPP PROGRAM TO TEST ABOVE CLASS FOR ABOVE OPERATIONS ON THE MAT OBJECTS. #include <iostream> #include <iomanip> class MAT { int m,n, mat[100][100]; public: void operator+(MAT); void operator-(MAT); void operator*(MAT); void getdata(); void display(); }; void MAT::getdata() { std::cout<<"Enter m: "; std::cin>>m; std::cout<<"Enter n: "; std::cin>>n; mat[m][n]; for(int i=0; i<m; i++) { for(int j=0; j<n;j++){ std::cout<<"Array["<<i<<"]["<<j<<"]: "; std::cin>>mat[i][j];} } } void MAT::display() { for(int i=0; i<m; i++) { for(int j=0; j<n; j++) { std::cout<<mat[i][j]<<" "; } std::cout<<std::endl; } std::cout<<std::endl; } void MAT::operator+(MAT m1) { if(m==m1.m && n==m1.n

  WRITE A PROGRAM IN CLASS THAT CAN STORE AN INTEGER ARRAY OF DIFFERENT WITH FOLLOWING MEMBER FUNCTIONS A) CONSTRUCTOR WITH ARRAY SIZE =0 B) COPY CONSTRUCTOR C) DESTRUCTOR #include <iostream> class arr{ int a[100],size; public: arr(){ std::cout<<"CONSTRUCTOR INITIALIZED ARRAY SIZE TO 0"; size=0; a[size]; } arr(arr &x); ~arr() { std::cout<<std::endl<<"DESTRUCTOR INVOLVED ~~ FREE MEMORY"; } }; arr::arr(arr &x) { std::cout<<std::endl<<"COPY CONSTRUCTOR INVOLVED"; size=x.size; a[size]; for(int i=0; i<x.size; i++) { a[i]=x.a[i]; } } int main() { arr a1; arr a2(a1); } INPUT-OUTPUT: CONSTRUCTOR INITIALIZED ARRAY SIZE TO 0 COPY CONSTRUCTOR INVOLVED DESTRUCTOR INVOLVED ~~ FREE MEMORY DESTRUCTOR INVOLVED ~~ FREE MEMORY This article is updated every month. Bookmark this for more interesting posts.

  In this " C PROGRAMMING NOTE 1 ", You can learn header files in c like stdio.h [ printf(), scanf(), getc(), putc(), fopen(), fclose(), remove(), flush() ], stdlib.h [ malloc(), free(), abort(), exit(), atol(), atoll(), atof(), rand() ], sys/types.h [ block, key, pthread, time, trace, uid ], sys/stat.h [ fstat(), lstat(), stat(), mode, link, id, time,st_mode file type, file mode bits ], dirent.h [ opendir, readdir, telldir, seekdir, rewinddir, or closedir subroutine ], and components of command line arguments , exit , return , return type topics. If you are a beginner then it will help you in your exams, and even competitive exams. This C PROGRAMMING NOTE 1, covers C Statements and what is the functionality of it, is discussed in short. HEADER FILES   HEADER FILE WITH DESCRIPTION #include<stdio.h> The header file "stdio.h" is written as #include<stdio.h>. The # include preprocessor directive is used to paste the code of a