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

#include<stdio.h>

#include<conio.h>

void main()

{

          int arr[3][3],i,j,k=2;

          clrscr();

          for(i=0; i<3; i++)

          {

                   for(j=0; j<3; j++)

                   {

                             printf("\tEnter value -> ");

                             scanf("%d",&arr[i][j]);

                   }

          }

          printf("\n\n");

          for(i=0; i<3; i++)

          {

                   for(j=0; j<=2; j++)

                   {

                             if(arr[i]==arr[k])

                             {

                             printf("\t-");

                             k--;

                             }

                             else

                             {

                             printf("\t%d",arr[i][j]);

                             k--;

                             }

                    }

                   printf("\n\n");

                   k=2;

          }

          getch();

          }