Write a program to make matrix by passing column parameter as default argument in C++

Prog 15 Write a program to make matrix by passing column parameter as default  argument.

#include<iostream.h>

#include<conio.h>

void matrix(int m,int n=3);

void matrix(int m,int n)

{

int A[5][5];

clrscr();

cout<<"Enter the value";

for(int i=0;i<m;i++)

{

for(int j=0;j++)

{

cin>>A[i][j];

}

}

cout<<"\n the matrix is"<

for( i=0;i+)

{

for(int j=0;j++)

{

cout<<"\t"<[i][j];

}

cout<<"\n";

}

}

void main()

{

int x;

clrscr();

cout<<"\n enter the value of x";

cin>>x; 
matrix(x); 
getch();

}