南阳33

 1 #include<stdio.h>
 2 #include<string.h>
 3 int a[105][105];
 4 int main()
 5 {
 6     int n,i,j,t;
 7     while(~scanf("%d",&n))
 8     {
 9         memset(a,0,sizeof a);
10         t=a[i=0][j=n-1]=1;
11         while(t<n*n)
12         {
13             while(i+1<n  && !a[i+1][j]) a[++i][j]=++t;
14             while(j-1>=0 && !a[i][j-1]) a[i][--j]=++t;
15             while(i-1>=0 && !a[i-1][j]) a[--i][j]=++t;
16             while(j+1<n  && !a[i][j+1]) a[i][++j]=++t;
17         }
18         for(i=0; i<n; ++i)
19         {
20             for(j=0; j<n; ++j)
21                 if(j)
22                     printf(" %d",a[i][j]);
23                 else
24                     printf("%d",a[i][j]);
25             printf("
");
26         }
27     }
28 }