Not logged in.  Login/Logout/Register | List snippets | | Create snippet | Upload image | Upload data

46
LINES

< > BotCompany Repo | #1011274 // Array-Based Binary Tree [OK!]

JavaX source code (desktop) [tags: use-pretranspiled] - run with: x30.jar

Download Jar. Libraryless. Click here for Pure Java version (2533L/17K).

!7

sclass ArrayTreeSet<A> {
  A[] array;
  
  *() {}
  *(L<A> l) {
    array = (A[]) new O[roundUpToPowerOfTwo(l(l))];
    l = sorted(l);
    fill(l, 0, l(array), 0);
  }
  
  void fill(L<A> l, int lIdx1, int lIdx2, int aIdx) {
    if (lIdx2 <= lIdx1) ret;
    int middle = (lIdx1+lIdx2)/2;
    array[aIdx] = get(l, middle);
    fill(l, lIdx1, middle, aIdx*2+1);
    fill(l, middle+1, lIdx2, aIdx*2+2);
  }
  
  bool contains(A a) {
    int i = 0;
    while (i < l(array)) {
      int x = array[i] == null ? -1 : cmp(a, array[i]);
      if (x == 0) true;
      i = i*2+(x > 0 ? 2 : 1);
    }
    false;
  }
}

p {
  new L<Int> l;
  for (int n = 0; n <= 64; n++) {
    if (n != 0) l.add(n*10);
    print("n=" + n); assertEquals(n, l(l));
    ArrayTreeSet tree = new ArrayTreeSet(shuffledList(l));
    printStruct(tree);
    for (int i : l) {
      assertTrue(str(i), tree.contains(i));
      assertFalse(tree.contains(i-1));
      assertFalse(tree.contains(i+1));
    }
  }
  print("OK");
}

download  show line numbers  debug dex  old transpilations   

Travelled to 13 computer(s): aoiabmzegqzx, bhatertpkbcr, cbybwowwnfue, cfunsshuasjs, gwrvuhgaqvyk, ishqpsrjomds, lpdgvwnxivlt, mqqgnosmbjvj, pyentgdyhuwx, pzhvpgtvlbxg, tslmcundralx, tvejysmllsmz, vouqrxazstgt

No comments. add comment

Snippet ID: #1011274
Snippet name: Array-Based Binary Tree [OK!]
Eternal ID of this version: #1011274/23
Text MD5: fc7e2c79acd8e4e8ee0dcf1141f8fbba
Transpilation MD5: a1b31f67608168d505057540f4735450
Author: stefan
Category: javax
Type: JavaX source code (desktop)
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2017-10-21 23:06:51
Source code size: 1035 bytes / 46 lines
Pitched / IR pitched: No / No
Views / Downloads: 386 / 841
Version history: 22 change(s)
Referenced in: [show references]