#include // ---------- declaration of user defined function for merging and sorting array ----------- //user defined function for merging the arrays into one array void merge(int [][3], int [][3], int[]); // user-defined function for sorting the merged array void sort(int[], int); //-------------- Start of the main function ------------------- main() { int A[3][3],B[3][3]; // declaration of 2D arrays int C[18]; // declaration of 1D array to store the values after merging // prompting the user to enter the elements of first array cout<<"Please enter the Elements of 1st Matrix\n\n"; for(int row=0;row<3;row++) { for(int col=0;col<3;col++) { cout <<"Enter the element for row "<>A[row][col]; } } // prompting the user to enter the elements of second 2d array cout<<"\n\nPlease enter the Elements of 2nd Matrix\n\n"; for(int row=0;row<3;row++) { for(int col=0;col<3;col++) { cout <<"Enter the element for row "<>B[row][col]; } } cout<<"\n\nElements of 1st Matrix are:\n\n"; for(int row=0;row<3;row++) { for(int col=0;col<3;col++) { cout<