C++ program to creates a magic square box of order n x n. The speciality of a magic square box is that the sum of elements of any row or any column is always equal ~ projectxplod

Thursday, 7 June 2012

C++ program to creates a magic square box of order n x n. The speciality of a magic square box is that the sum of elements of any row or any column is always equal

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C++ program to creates a magic square box of order n x n. The speciality of a magic square box is that the sum of elements of any row or any column is always equal





#include <stdio.h> 
#include <conio.h> 
#include <math.h> 
#include <stdlib.h> 
#include <alloc.h> 
int arr[10][10], n, a,b,i; 
void magic(int , int , int, int); 

void main() 
{ 
int j,x,k; 
clrscr(); 
printf("\n Enter size of matrix (n X n, where n is odd):"); 
scanf("%d", &n); 
printf("\n Enter 1st element of the %d sequential elements:",n*n); 
scanf("%d", &x); 
for (i=0; i<n; i++) 
{ 
for (k=0; k<n; k++) 
{ 
arr[i][k]=-1; 
} 
} 
arr[0][n/2]=x; 

magic(0,n/2, x, n); 
printf("\n"); 
for (i=0; i<n; i++) 
{ 
for (k=0; k<n; k++) 
{ 
printf(" %3d ", arr[i][k]); 
} 
printf("\n"); 
} 
getch(); 
} 


void magic( int a, int b, int x, int n) 
{ 
int c; 
c=1; 
for (x=x+1,i=2; i<=n*n; i++,c++,x++) 
{ 
if(c<n) 
{ 
a=a-1; 
b=b-1; 
if (a==-1) 
a=n-1; 
if (b==-1) 
b=n-1; 
} 
else 
{ 
a=a+1; 
c=0; 
} 
arr[a][b]=x; 
} 

}