Explain Arrays and its types in C++?

Programming Language
#1

Array in C++ is a group of similar types of elements that have contiguous memory location.

Index starts from 0. We can store only fixed set of elements in C++ array.
Random Access
Easy to traverse, manipulate and sort

Two array types:-

  1. Single Dimensional Array
 int arr[5]={10, 0, 20, 0, 30};    
        for (int i = 0; i < 5; i++)    
        {    
            cout<<arr[i]<<"\n";    
        }
  1. Multidimensional Array - 2D, 3D and so on
    They are known as rectangular arrays in C++ since they can be two dimensional or three dimensional. The data is stored in tabular form (row ∗ column) which is also known as matrix.

Example-

int main()  
{  
  int test[3][3] =  
    {  
        {2, 5, 5},  
        {4, 0, 3},  
        {9, 1, 8}  
    };  

      for(int i = 0; i < 3; ++i)  
      {  
          for(int j = 0; j < 3; ++j)  
          {  
              cout<< test[i][j]<<" ";  
          }  
          cout<<"\n"; //new line at each row   
      }  
      return 0;  
}