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  1. //Bai 14
  2.  
  3. #include<bits/stdc++.h>
  4. using namespace std;
  5. #define el "\n"
  6. #define ll long long
  7. #define ull unsigned long long
  8. #define se second
  9. #define fi first
  10. #define be begin()
  11. #define en end()
  12. #define Faster cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0);
  13. int n;
  14. void Run()
  15. {
  16.    cin >> n;
  17.    int a[n][n];
  18.    int dem = 1;
  19.    for(int i = 0; i < n; i++)
  20.    {
  21.        if(i % 2 == 0)
  22.         {
  23.             for(int j = 0; j < n; j++) a[i][j] = dem++ ;
  24.         }
  25.         else
  26.         {
  27.                dem += n - 1;
  28.                for(int j = 0; j < n; j++) a[i][j] = dem--;
  29.                dem += n + 1;
  30.         }
  31.    }
  32.    for(int i = 0 ; i < n; i++)
  33.    {
  34.        for(int j = 0; j < n; j++)
  35.        {
  36.            cout << a[j][i] << " ";
  37.        }
  38.        cout << el;
  39.    }
  40. }
  41. int main()
  42. {
  43.     Faster;
  44.     Run();
  45.     return 0;
  46. }
  47.  
  48.  
Success #stdin #stdout 0.01s 5280KB
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https://ideone.com/0RY2Sd
language:
C++14 (gcc 8.3)
created:
3 days ago
visibility:
public

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