test/test_vbtree
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没必要了, tree的有点复杂, 有空才去完善了

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eson 2019-08-04 16:16:52 +08:00
parent d7eea236ed
commit c032a243d8
1 changed files with 138 additions and 12 deletions
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150
src/vbtree.h
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@ -139,6 +139,25 @@ private:
cur->size = getChildrenSumSize(cur) + 1;
}
template<int l, int r>
void xxrotate3(TreeNode *cur) { //
TreeNode *movparent = cur->children[l];
TreeNode *mov = movparent->children[r];
this->swap_node_kv(mov, cur);
cur->children[r] = mov;
mov->parent = cur;
cur->children[l] = movparent;
movparent->children[r] = NULL;
cur->children[r] = mov;
mov->parent = cur;
cur->children[l]->size = 1;
}
void rlrotate3(TreeNode *cur)
{
const int l = 0;
@ -161,6 +180,50 @@ private:
cur->children[l]->size = 1;
}
template<int l, int r>
void xxrotate(TreeNode *cur) {
TreeNode *movparent = cur->children[l];
TreeNode *mov = movparent->children[r];
this->swap_node_kv(mov, cur);
if (mov->children[l] != NULL)
{
movparent->children[r] = mov->children[l];
movparent->children[r]->parent = movparent;
}
else
{
movparent->children[r] = NULL;
}
if (mov->children[r] != NULL)
{
mov->children[l] = mov->children[r];
}
else
{
mov->children[l] = NULL;
}
if (cur->children[r] != NULL)
{
mov->children[r] = cur->children[r];
mov->children[r]->parent = mov;
}
else
{
mov->children[r] = NULL;
}
cur->children[r] = mov;
mov->parent = cur;
movparent->size = this->getChildrenSumSize(movparent) + 1;
mov->size = this->getChildrenSumSize(mov) + 1;
cur->size = this->getChildrenSumSize(cur) + 1;
}
void rlrotate(TreeNode *cur)
{
const int l = 0;
@ -208,10 +271,26 @@ private:
cur->size = this->getChildrenSumSize(cur) + 1;
}
void rrotate3(TreeNode *cur)
{
const int l = 0;
const int r = 1;
template<int l, int r>
void xrotate3(TreeNode *cur) {
TreeNode *mov = cur->children[l];
this->swap_node_kv(mov, cur);
cur->children[r] = mov;
cur->children[l] = mov->children[l];
cur->children[l]->parent = cur;
mov->children[l] = NULL;
mov->size = 1;
}
void rrotate3(TreeNode *cur) // 0
{
const int l = 0;
const int r = 1;
// 1 right 0 left
TreeNode *mov = cur->children[l];
@ -227,6 +306,45 @@ private:
mov->size = 1;
}
template<int l, int r>
void xrotate(TreeNode *cur) {
// 1 right 0 left
TreeNode *mov = cur->children[l];
this->swap_node_kv(mov, cur);
// mov->children[l]不可能为nil
mov->children[l]->parent = cur;
cur->children[l] = mov->children[l];
// 解决mov节点孩子转移的问题
if (mov->children[r] != NULL)
{
mov->children[l] = mov->children[r];
}
else
{
mov->children[l] = NULL;
}
if (cur->children[r] != NULL)
{
mov->children[r] = cur->children[r];
mov->children[r]->parent = mov;
}
else
{
mov->children[r] = NULL;
}
// 连接转移后的节点 由于mov只是与cur交换值,parent不变
cur->children[r] = mov;
mov->size = getChildrenSumSize(mov) + 1;
cur->size = getChildrenSumSize(cur) + 1;
}
void rrotate(TreeNode *cur)
{
@ -339,11 +457,13 @@ private:
ULONG lrsize = std::get<1>(lllr);
if (lrsize > llsize)
{
this->rlrotate(cur);
this->xxrotate<0, 1>(cur);
// this->rlrotate(cur);
}
else
{
this->rrotate(cur);
this->xrotate<0, 1>(cur);
// this->rrotate(cur);
}
}
else
@ -353,11 +473,13 @@ private:
ULONG rrsize = std::get<1>(rlrr);
if (rlsize > rrsize)
{
this->lrrotate(cur);
this->xxrotate<1, 0>(cur);
// this->lrrotate(cur);
}
else
{
this->lrotate(cur);
this->xrotate<1, 0>(cur);
// this->lrotate(cur);
}
}
}
@ -433,11 +555,13 @@ public:
{
if (cur->parent->children[0] == NULL)
{
this->lrrotate3(cur->parent);
this->xxrotate3<1, 0>(cur->parent);
// this->lrrotate3(cur->parent);
}
else
{
this->rrotate3(cur->parent);
this->xrotate3<0, 1>(cur->parent);
// this->rrotate3(cur->parent);
}
}
return;
@ -459,11 +583,13 @@ public:
{
if (cur->parent->children[1] == NULL)
{
this->rlrotate3(cur->parent);
this->xxrotate3<0, 1>(cur->parent);
// this->rlrotate3(cur->parent);
}
else
{
this->lrotate3(cur->parent);
this->xrotate3<1, 0>(cur->parent);
// this->lrotate3(cur->parent);
}
}
return;