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  1. #include<bits/stdc++.h>
  2. #define ll long long
  3. using namespace std;
  4. ll n,m,a[100005],h=1,c= 1;
  5. int main()
  6. {
  7.     ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
  8.     freopen("TROCHOI.inp", "r", stdin);
  9.     freopen("TROCHOI.out", "w", stdout);
  10.     cin >> n >> m;
  11.     for(int i = 1; i <= n*m; i++)
  12.     {
  13.         cin >> a[i];
  14.     }
  15.     sort(a+1,a+n*m+1);
  16.     ll i = 1;
  17.     while(h <= n)
  18.     {
  19.         if(h&1)
  20.         {
  21.             for(int j = i; j <= i + m-1; j++)
  22.                 cout << a[j] << ' ';
  23.             cout << '\n';
  24.         }
  25.         else
  26.         {
  27.             for(int j = i + m-1; j >= i; j--)
  28.                 cout << a[j] << ' ';
  29.             cout << '\n';
  30.         }
  31.         i = i + m;
  32.         h++;
  33.     }
  34.  
  35. }
  36.  
Success #stdin #stdout 0.01s 5280KB
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https://ideone.com/heLKvE
language:
C++14 (gcc 8.3)
created:
7 days ago
visibility:
public

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