Magic Square of nth number…..
#include<conio.h>
#include<iostream>
#include<iomanip>
using namespace std;
int main()
{
int **p,n,mul;
again:
cout<<"Enter an odd number:-"<<endl;
cin>>n;
if(n%2==0)
{
cout<<"Please enter an odd number:-"<<endl;
goto again;
}
p=new int*[n]; // Dynamic array allocation
for(int i=0;i<n;i++)
{
p[i]=new int[n];
}
mul=n*n;
//---------------Creating Magic square----------------------------
int i=0,j=n/2,k;
for (k=1; k<=mul;k++)
{
p[i][j]=k;
i--;
j++;
if (k%n==0)
{
i+=2;
--j;
}
else
{
if(j == n)
{
j-=n;
}
else if(i<0)
{
i+=n;
}
}
}
cout<<endl<<"Magic square of "<<n<<" is:-"<<endl<<endl;
for(int i=0;i<n;i++)
{
for(int j=0;j<n;j++)
{
cout<<setw(5)<<p[i][j];
}
cout<<endl;
}
cout<<endl;
cout<<setw(50)<<"@ Myprogworld..!!";
getch ();
}
Output :-
Myprogworld 