3_11.cpp

《c++程序设计技能百练》源代码,内有99个实例。

#include <iostream.h>
const int N=15;
void main()
{
	int i,j,k,m,n;
	int G[N][N];
	cout<<"Input the odd number you want!"<<endl;
    cin>>m;
	if ((m>0)&&(m%2))
	{
		cout<<"your inputed number is "<<m<<endl;
		n=m*m;
		j=0;
		k=m/2;
		for (i=1;i<=n;i++)
		{
			G[j][k]=i;
			if(i%m==0)
				if(j==m-1)
					j=0;
				else j++;
            else
			{
				if(j==0)
					j=m-1;
				else j--;
				if (k==m-1)
					k=0;
				else k++;
			}
		}
		for(i=0;i<m;i++)
		{
			for(j=0;j<m;j++)
				cout<<G[i][j]<<"  ";
			cout<<endl;
		}
	}
	else cout<<"the number you inputed is error!"<<endl;
}