API tools faq
paste
Advertisement
Josif_tepe

Untitled

Josif_tepe
May 12th, 2025
212
0
Never
Add comment
Not a member of Pastebin yet? Sign Up, it unlocks many cool features!
C++ 0.86 KB | None | 0 0
raw download clone embed print report
  1. #include <iostream>
  2. #include <cstring>
  3. using namespace std;
  4.  
  5. int n;
  6. int mat[101][101];
  7. int dp[101][101];
  8. const int INF = 1e8;
  9. int rec(int i, int j) {
  10.     if(i == n - 1) {
  11.         return mat[i][j];
  12.     }
  13.     if(dp[i][j] != -1) {
  14.         return dp[i][j];
  15.     }
  16.    
  17.     int res = -INF;
  18.     if(i + 1 < n and mat[i + 1][j] != -1) {
  19.         res = max(res, rec(i + 1, j) + mat[i][j]);
  20.     }
  21.     if(i + 1 < n and j + 1 < n and mat[i + 1][j + 1] != -1) {
  22.         res = max(res, rec(i + 1, j + 1) + mat[i][j]);
  23.     }
  24.     dp[i][j]  = res;
  25.     return res;
  26. }
  27. int main() {
  28.     cin >> n;
  29.    
  30.     memset(mat, -1, sizeof mat);
  31.     memset(dp, -1, sizeof dp);
  32.     for(int i = 0; i < n; i++) {
  33.         for(int j = 0; j <= i; j++) {
  34.             cin >> mat[i][j];
  35.         }
  36.     }
  37.    
  38.     cout << rec(0, 0) << endl;
  39.    
  40.    
  41.    
  42.    
  43.     return 0;
  44. }
  45.  
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement
Public Pastes
Advertisement
We use cookies for various purposes including analytics. By continuing to use Pastebin, you agree to our use of cookies as described in the Cookies Policy.  OK, I Understand
Not a member of Pastebin yet?
Sign Up, it unlocks many cool features!