To Calculate Determinant of a Matrix Using Recursion in C++.

#include<iostream.h>
#include<conio.h>
#include<math.h>
#include<process.h>
void main()
{
 int determinant(int[5][5],int);// FUNCTIONS
 void read(int[5][5],int);
 void print(int[5][5],int);     // PROTOYPES
 int a[5][5],l,n;
 int result;
 l1:clrscr();
 cout<<"ENTER ORDER OF MATRIX(MAX. OF 4X4):";
 cin>>l>>n;
//TESTING CONDITION
if(l!=n)
  {                   
	cout<<"SORRY!!!!!\nONLY SQUARE MATRIX";
	goto l1;
  }
 read(a,n);
 result = determinant(a,n);
 print(a,n);
 cout<<"THE DETERMINANT OF THE ABOVE MATRIX IS:"<<result;
 getch();
}
void read(int b[5][5],int m)     //FUNCTION FOR READING MATRIX
{
 cout<<"ENTER "<<m*m<<" ELEMENTS OF MATRIX(ROW-WISE):";
 for(int i=0;i<m;i++)
  for(int j=0;j<m;j++)
	cin>>b[i][j];
}
//FUNCTION FOR PRINTING MATRIX
void print(int b[5][5],int m)
{
 clrscr(); 
 cout<<"MATRIX IS :";
 for(int i=0;i<m;i++)
 {
  cout<<"";
  for(int j=0;j<m;j++)
	cout<<"	"<<b[i][j];
 }
}
//FUNCTION TO CALCULATE DETERMINANT
int determinant(int b[5][5],int m)   
{
 int i,j,sum = 0,c[5][5];
 if(m==2)
  {           /BASE CONDITION
	sum = b[0][0]*b[1][1] - b[0][1]*b[1][0];
	return sum;
  }
 for(int p=0;p<m;p++)
 {
  int h = 0,k = 0;
  for(i=1;i<m;i++)
  {
	for( j=0;j<m;j++)
	{
	 if(j==p)
	  continue;
	 c[h][k] = b[i][j];
	 k++;
	 if(k == m-1)
	  {
		 h++;
		 k = 0;
	  }
	}
  }
  sum = sum + b[0][p]*pow(-1,p)*determinant(c,m-1);
 }
 return sum;
}