WAP to number of isolated vertices in a Graph

#include<stdio.h>

#include<conio.h>

void main()

{

  int i,j;

  int flag=0, count3;

  int total;

  int m,a[10][10];

  clrscr();

  printf("\n @@@ Enter the no of vertices in a graph : @@@\n-> ");

  scanf ("%d",&m);

  printf ("\n Enter the adjacency matrix :  \n");

  for (i=0;i<m;i++)

  {

    for(j=0;j<m;j++)

            {

                printf ("Enter %d row and ",i);

                printf (" %d column -> ",j);

             scanf("%d",&a[i][j]);

            }

  }

  printf ("\n>>> The entered adjacency matrix is \n" );

  for (i=0;i<m;i++)

  {

    for(j=0;j<m;j++)

            {

             printf ("%3d",a[i][j]);

            }

            printf ("\n");

  }

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

 {

   count3=0;

     for (j=0;j<m;j++)

     {

       if(a[i][j]==1)

      {

             count3=count3+1;

      }

     }

       if (count3==0)

       {

            printf ("\n>>>isolated vertex found at vertex = %d\n",i+1);

       }

 }

  getch();

}