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  1. #include <bits/stdc++.h>
  2. #define endl '\n'
  3. using namespace std;
  4. using ll = long long;
  5.  
  6. int n,k;
  7. int cnt[3010][3010];
  8. int cur;
  9.  
  10. int main(){
  11.     ios_base::sync_with_stdio(false);
  12.     cin.tie(NULL);
  13.     //freopen("DIVGROUP.INP","r",stdin);
  14.     //freopen("DIVGROUP.OUT","w",stdout);
  15.     cin >> n >> k;
  16.     for(int i = 0; i < k;i++){
  17.         cnt[i+1][i+1] = n*n - i;
  18.     }
  19.     cur = n*n - k;
  20.     for(int i = 1; i <= n; i++){
  21.         for(int j = 1; j <= n; j++){
  22.             if(i == j && i <= k) continue;
  23.             else cnt[i][j] = cur--;
  24.         }
  25.     }
  26.     for(int i = 1; i <= n; i++){
  27.         for(int j = 1; j <= n; j++){
  28.             cout << cnt[i][j] << " ";
  29.         }
  30.         cout << endl;
  31.     }
  32.     return 0;
  33. }
  34.  
Success #stdin #stdout 0s 5320KB
comments (?)
stdin
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3 2
stdout
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9 7 6 
5 8 4 
3 2 1
https://ideone.com/cS91va
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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