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  1. #include <iostream>
  2.  
  3. using namespace std;
  4.  
  5. int main()
  6. {
  7.     int n;
  8.     cin >> n;
  9.     int i = 1;
  10.     int j = n - 1;
  11.     int k = 0;
  12.     int a = 0;
  13.     int array[n][n];
  14.     while (i <= n*n)
  15.     {
  16.         array[k][k] = i;
  17.         cout << k << ' ' << k << ' ' << i << endl;
  18.         i++;
  19.         array[k][n-k -1] = i;
  20.         cout << k << ' ' << n-k-1 << ' ' << i << endl;
  21.         i++;
  22.         array[n-k-1][n-k - 1 ] = i;
  23.         cout << n-k-1 << ' ' << n-k-1 << ' ' << i <<  endl;
  24.         i++;
  25.         array[n-k-1][k] = i;
  26.         cout << n-k-1 << ' ' << k << ' ' << i <<  endl;
  27.         i++;
  28.         if (i > n*n)
  29.             break;
  30.         while (a < j - 1)
  31.         {
  32.             array[k][k + a + 1] = i;
  33.             i++;
  34.         cout << k << ' ' << k+a+1 << ' ' << i <<  endl;
  35.             array[k + a + 1][n-k-1] = i;
  36.             i++;
  37.         cout << k+a+1 << ' ' <<n-k-1 << ' ' << i <<  endl;
  38.             array[n - k - 1][n - k - a - 2] = i;
  39.             i++;
  40.         cout << n - k - 1 << ' ' << n - k - a - 2 << ' ' << i <<  endl;
  41.             array[n-k-a-2][k] = i;
  42.             a++;
  43.             i++;
  44.         cout << n-k-a-2 << ' ' << k << ' ' << i <<  endl;
  45.         }
  46.         i++;
  47.         //a = 0;
  48.         k++;
  49.         j--;
  50.     }
  51.     k = 0;
  52.     j = 0;
  53.     while(k < n)
  54.     {
  55.         while(j < n)
  56.         {
  57.             cout << array[k][j] << " ";
  58.             j++;
  59.         }
  60.         k ++;
  61.         j = 0;
  62.         cout << endl;
  63.     }
  64.     return 0;
  65. }
  66.  
Success #stdin #stdout 0s 3104KB
comments (?)
stdin
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6
stdout
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0 0 1
0 5 2
5 5 3
5 0 4
0 1 6
1 5 7
5 4 8
3 0 9
0 2 10
2 5 11
5 3 12
2 0 13
0 3 14
3 5 15
5 2 16
1 0 17
0 4 18
4 5 19
5 1 20
0 0 21
1 1 22
1 4 23
4 4 24
4 1 25
2 2 27
2 3 28
3 3 29
3 2 30
3 3 32
3 2 33
2 2 34
2 3 35
1 5 9 13 17 2 
20 22 2 -1216213722 23 6 
16 2 34 35 134513424 10 
12 -1215696984 33 32 0 14 
8 25 2 6 24 18 
4 19 15 11 7 3
https://ideone.com/FeDGqB
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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