Insertion Of a Column in 2D Array

//Insertion Of a Column in 2D Array
#include<iostream.h>
#include<conio.h>
main()
{
 int i,j,k,m,n;
 int a[10][10];
 int b[10];
 cout<<"Enter Dimensions of array";
 cin>>m>>n;
 cout<<"Enter Elements";
 for(i=1;i<=m;i++)
 {for(j=1;j<=n;j++)
 {cin>>a[i][j];}}

 cout<<"Enter Column no Where to insert";
 cin>>k;

 cout<<"Enter a column to Insert";
 for(i=1;i<=m;i++)
 {cin>>b[i];}
 //Shifting
 n=n+1;
 for(i=1;i<=m;i++)
 {for(j=n;j>=k;j--)
 {a[i][j]=a[i][j-1];}}

 //insertion
 for(i=1;i<=m;i++)
 {a[i][k]=b[i];}

 //printing
 for(i=1;i<=m;i++)
 {for(j=1;j<=n;j++)
 {cout<<a[i][j];}
  cout<<endl;}
  getch();
}