C Language: A Example of Print Snake Matrix

// SnakeMatrix.cpp : Defines the entry point for the console application.
// Create by Xianyi.Ye, May 4,2010

#include "stdafx.h"
#include <iostream.h>

/*
Question: Print a Sanke Matrix as following

i/j	1	2	3	4	5	6
1        1	2	9	10	25	26
2	4	3	8	11	24	27
3	5	6	7	12	23	28
4	16	15	14	13	22	28
5	17	18	19	20	21	30
6	36	35	34	33	32	31

Explain:
"i" is the line number of the matrix.
"j" is the column number of the matrix.

*/
void showMatrix(int n)
{

	for(int i=1 ; i<=n ; i++)
	{
		for(int j=1 ; j<=n ; j++)
		{
			if(i<=j)//upper triangular matrix 
			{
				if(j%2==0)	//j==even number 
					cout<<(j-1)*(j-1)+i<<"	" ;
				else	//j==odd number 
					cout<<(j-1)*(j-1)+2*j-i<<"	" ;
			}
			if(i>j)		//lower triangular matrix
			{
				if(i%2==0)	//i==even number 
					cout<<(i-1)*(i-1)+2*i-j<<"	" ;
				else	//i==odd number 
					cout<<(i-1)*(i-1)+j<<"	" ;
			}
		
		}

		cout<//create new line.
	}

}


int main(int argc, char* argv[])
{
	showMatrix(6) ;

	return 0;
}

Result: