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  1. //longlong5a6
  2. #include <bits/stdc++.h>
  3. #define pii pair<int,int>
  4. #define F first
  5. #define S second
  6. #define bit(i, x)((x >> i) & 1)
  7. #define sobit(i)  __builtin_popcount((int)(i))
  8. #define pb push_back
  9. #define all(x) x.begin(),x.end()
  10. #define vi vector<int>
  11. #define For(i,x,n) for(int (i)=(int)(x);(i)<=(int)(n);(i)++)
  12. #define round(m,n) setprecision((int)m) << fixed << double(n)
  13. #define down "\n"
  14. #define TASK "hexangle"
  15. #define maxn 3001
  16.  
  17. using namespace std;
  18. int a[maxn][maxn];
  19. int m;
  20.  
  21. void work(int k)
  22. {
  23.     if(k == 1)
  24.     {
  25.         return;
  26.     }
  27.     int sub;
  28.     if(k == 2)
  29.     {
  30.         sub = 1;
  31.     }
  32.     else sub = ceil(1.0*k/1.5);
  33.     work(sub);
  34.     For(i, 1, m-k+1)
  35.     {
  36.         For(j, 1, i)
  37.         {
  38.             int lim = i - sub + k;
  39.             a[i][j] = max(a[i][j], max(a[lim][j], a[lim][j-sub+k]));
  40.         }
  41.     }
  42.  
  43. }
  44.  
  45. int main()
  46. {
  47.     ios_base::sync_with_stdio(0);
  48.         cin.tie();
  49.         cout.tie();
  50.     if (fopen("in.txt","r"))
  51.         {
  52.             freopen("in.txt","r",stdin);
  53.  
  54.         }
  55.     if (fopen(TASK".INP","r"))
  56.             {
  57.                 freopen(TASK".INP","r",stdin);
  58.                 freopen(TASK".OUT","w",stdout);
  59.             }
  60.     int k;
  61.     cin>>m>>k;
  62.     For(i,1,m)
  63.     {
  64.         For(j,1,i) cin>>a[i][j];
  65.     }
  66.     work(k);
  67.     long long res=0;
  68.     For(i,1,m-k+1)
  69.     {
  70.         For(j,0,i) res+=a[i][j];
  71.     }
  72.     cout<<res;
  73. }
  74.  
Success #stdin #stdout 0.01s 5272KB
comments (?)
stdin 
Standard input is empty
stdout 
Standard output is empty
https://ideone.com/VVeY3P
language:
C++ (gcc 8.3)
created:
1 day ago
visibility:
public

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