我無法插入二項堆,當我調用插入1它打印(1),然後我插入2它顯示(2),而不是(1(2)),然後三個它顯示(3)而不是(3)(1(2))。如果有人能幫我弄清楚我的問題,我將非常感激。先謝謝你。這裏是我的代碼二項式堆插入java
public class BHeap {
int key;
int degree;//The degree(Number of children)
BHeap parent, leftmostChild, rightmostChild, rightSibling,root,previous,next;
public BHeap(){
key =0;
degree=0;
parent =null;
leftmostChild=null;
rightmostChild=null;
rightSibling=null;
root=null;
previous=null;
next=null;
}
public BHeap merge(BHeap y){
BHeap newHeap = new BHeap();
BHeap currentHeap = y;
BHeap nextHeap = y.rightSibling;
while(currentHeap.rightSibling !=null){
if(currentHeap.degree==nextHeap.degree){
if(currentHeap.key<nextHeap.key){
if(currentHeap.degree ==0){
currentHeap.leftmostChild=nextHeap;
currentHeap.rightmostChild=nextHeap;
currentHeap.rightSibling=nextHeap.rightSibling;
nextHeap.rightSibling=null;
nextHeap.parent=currentHeap;
currentHeap.degree++;
}
else{
newHeap = currentHeap;
newHeap.rightmostChild.rightSibling=nextHeap;
newHeap.rightmostChild=nextHeap;
nextHeap.parent=newHeap;
newHeap.degree++;
nextHeap.rightSibling=null;
nextHeap=newHeap.rightSibling;
}
}
else{
if(currentHeap.degree==0){
nextHeap.rightmostChild=currentHeap;
nextHeap.rightmostChild.root = nextHeap.rightmostChild;//add
nextHeap.leftmostChild=currentHeap;
nextHeap.leftmostChild.root = nextHeap.leftmostChild;//add
currentHeap.parent=nextHeap;
currentHeap.rightSibling=null;
currentHeap.root=currentHeap;//add
nextHeap.degree++;
}
else{
newHeap=nextHeap;
newHeap.rightmostChild.rightSibling=currentHeap;
newHeap.rightmostChild=currentHeap;
currentHeap.parent= newHeap;
newHeap.degree++;
currentHeap=newHeap.rightSibling;
currentHeap.rightSibling=null;
}
}
}
else{
currentHeap=currentHeap.rightSibling;
nextHeap=nextHeap.rightSibling;
}
}
return y;
}
public void Insert(int x){
BHeap newHeap= new BHeap();
newHeap.key=x;
if(this.root==null){
this.root=newHeap;
}
else{
this.root = merge(newHeap);
}
}
public void Display(){
System.out.print("(");
System.out.print(this.root.key);
if(this.leftmostChild != null){
this.leftmostChild.Display();
}
System.out.print(")");
if(this.rightSibling!=null){
this.rightSibling.Display();
}
}
}
你有沒有嘗試過調試它? – Cruncher
@Cruncher是的,我做了調試,所有東西都指向它指向的位置並正確設置所有東西 – King11
@Rod沒有代碼,您的問題就沒有永久的價值。如果您不想顯示它,請刪除整個問題。 – EJP