47 lines
971 B
C++
47 lines
971 B
C++
#include<stdio.h>
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#include<string.h>
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int main()
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{
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int n,i,j,k,t;
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int a[20][20];
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while(scanf("%d",&n)!=EOF&&n)
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{ t=0;
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memset(a,0,sizeof(a));
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i=1;j=1;
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while(t<2*n+2*(n-2))
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{
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while(j<=n)
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{
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t++;a[i][j]=t;j++;
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}
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j=j-1;
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while(++i<=n)
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{
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t++;a[i][j]=t;
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}
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i=i-1;
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while(--j>=1)
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{
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t++;a[i][j]=t;
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}
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j=j+1;
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while(--i>1)
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{
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t++;a[i][j]=t;
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}
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}
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for(i=1;i<=n;i++)
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{
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for(j=1;j<=n;j++)
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{
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if(a[i][j]!=0)
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printf("%3d",a[i][j]);
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else
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printf(" ");
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}
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printf("\n");
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}
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}
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return 0;
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}
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