općenito stablo–prvo dijete–sljedeći brat–pomoću polja酒店

Posted 2021-02-23

Implementacija općenitog stabla „prvo dijete - sljedeći brat“ pomoću polja za kolegij Strukture podataka.

struct elem{
	char label;
	int firstchild, nextsibling;
};
 
struct tree{
	elem array[10000];
	int root;
};
 
tree* InitT(int x, tree* T){
	T = new tree;
	for(int i=0; i<1000; i++){
		T->array[i].label = '0';
		T->array[i].firstchild = -1;
		T->array[i].nextsibling = -1;
	}
	T->array[x].label = 'A';
	T->root = x;
	return T;
}
 
int RootT(tree* T){
	return T->root;
}
 
char LabelT(int n, tree* T){
	return T->array[n].label;
}
 
char ChangeLabelT(char x, int n, tree* T){
	T->array[n].label = x;
}
 
int FirstChildT(int n, tree* T){
	return T->array[n].firstchild;
}
 
int NextSiblingT(int n, tree* T){
	return T->array[n].nextsibling;
}
 
int ParentT(int n, tree* T){
	for(int i=0; i<10000; i++){
		if(T->array[i].firstchild == n) return i;
		if(T->array[i].nextsibling == n) return ParentT(i, T); 
	}
}
 
void CreateT(int x, int n, tree* T){
	if(T->array[n].label == '0') cout << "Cvor " << n << " ne postoji unutar stabla." << endl;
	else{
		if(T->array[n].firstchild == -1) T->array[n].firstchild = x;
		else if(T->array[T->array[n].firstchild].nextsibling == -1) T->array[T->array[n].firstchild].nextsibling = x;
		else{
			n = T->array[n].firstchild;
			while(T->array[n].nextsibling != -1)
				n = T->array[n].nextsibling;
			T->array[n].nextsibling = x;
		}
		T->array[x].firstchild = -1;
		T->array[x].nextsibling = -1;
		T->array[x].label = T->array[n].label+1;
	}
}
 
bool DeleteT(int n,tree *T){
	if(T->array[n].firstchild != -1) DeleteT(T->array[n].firstchild,T);
	if(T->array[n].nextsibling != -1) DeleteT(T->array[n].nextsibling,T);
	T->array[n].label = '0';
	T->array[n].firstchild = -1;
	T->array[n].nextsibling = -1;
	if(T->array[ParentT(n,T)].nextsibling != -1) T->array[ParentT(n,T)].firstchild = T->array[ParentT(n,T)].nextsibling;
	else T->array[ParentT(n,T)].firstchild = -1;
	return true;
}