Write a program to print the upper and lower half triangle of a matrix.

#include<iostream.h>

#include<conio.h>

# define n 10

void main( )

{

int mat[n][n];

int d;

// Input elements

cout<<  "\n  Enter dimension of square matrix:";

cin >> d;

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

for( int j = 0; j < d ; j++)

{cout<<"\n Enter elements for "<<  i+1 << "," << j+1 <"location :";

cin >> mat[i][j];

}

clrscr();

//Print the array

cout<<"\n The Original matrix : \n\n";

for( i = 0; i < d ; i++)

{for( j = 0; j < d ; j++)

   cout<<  mat[i][j]<<"\t";

cout<< "\n";

}

//upper half of left diagonal ----

cout<<"\n The Upper half of the matrix : \n\n";

for( i = 0; i < d ; i++)

{

 for( j = 0; j < d ; j++)

     { if(i < j)

         cout <<  mat [i][j] << " " ;

      else

         cout << " " << " ";

       }

 cout << "\n ";

}

//lower half of left diagonal -----

cout<<"\n The Lower half of the matrix : \n\n";

for( i = 0; i < d ; i++)

{

 for( j = 0; j < d ; j++)

     { if(i >  j)

         cout <<  mat [i][j] << " " ;

      else

         cout << " " << " ";

       }

 cout << "\n ";

}

getch ( );

}