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  1. #define log(x) printf(#x": %d\n", x)
  2. a,b,c,d,e,i,j,x,y,**z;
  3. p(){
  4.     j=y;
  5.     while(j--){
  6.         i=x;
  7.         while(i--)printf("%3d ",z[x-i-1][y-j-1]);
  8.         puts("");
  9.     }
  10. }
  11. f(){
  12.     if(c>0&&!d&&x-i-1==j){
  13.         c=0;
  14.         d=1;
  15.     }
  16.     else if(!c&&d>0&&x-i-1-y%2==y-j-1){
  17.         c=-1;
  18.         d=0;
  19.     }
  20.     else if(c<0&&!d&&i+!(y%2)==y-j-1){
  21.         c=0;
  22.         d=-1;
  23.     }
  24.     else if(!c&&d<0&&i==j){
  25.         c=1;
  26.         d=0;
  27.     }
  28.     printf("%d %d\n",c,d);
  29.     i+=c;
  30.     j+=d;
  31. }
  32. main(){
  33.     scanf("%d%d",&x,&y);
  34.     z=malloc(x*4);
  35.     i=x;
  36.     while(i--)z[i]=malloc(y*4);
  37.  
  38.     if(x<y){
  39.         a=x/2;
  40.         b=y/2;
  41.         a=a<b?a:b;
  42.         b=(a<b?a:b)-!(x%2);
  43.         d=1;
  44.     }
  45.     else{
  46.         a=x/2-!(x%2);
  47.         b=y/2-!(y%2);
  48.         a=a<b?a:b;
  49.         b=a<b?a:b;
  50.         c=1;
  51.     }
  52.  
  53.     i=a;
  54.     j=b;
  55.  
  56.     while(e++<x*y){
  57.         z[i][j]=e;
  58.         printf("%d %d %d\n",e,i,j);
  59.         f();
  60.     }
  61.  
  62.     p();
  63. }
Success #stdin #stdout 0s 1968KB
comments (?)
stdin
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6 4
stdout
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1 1 1
1 0
2 2 1
1 0
3 3 1
1 0
4 4 1
0 1
5 4 2
-1 0
6 3 2
-1 0
7 2 2
-1 0
8 1 2
-1 0
9 0 2
0 -1
10 0 1
0 -1
11 0 0
1 0
12 1 0
1 0
13 2 0
1 0
14 3 0
1 0
15 4 0
1 0
16 5 0
0 1
17 5 1
0 1
18 5 2
0 1
19 5 3
-1 0
20 4 3
-1 0
21 3 3
-1 0
22 2 3
-1 0
23 1 3
-1 0
24 0 3
-1 0
 11  12  13  14  15  16 
 10   1   2   3   4  17 
  9   8   7   6   5  18 
 24  23  22  21  20  19
https://ideone.com/UZ9evd
language:
C (gcc 8.3)
created:
13 years ago
visibility:
secret

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