void freqtable::pop()
{
delete table.front(); // delete the actual element
table.front() = table.back(); // overwrite first with last address
table.pop_back();
trickleDown(0); // trickle last address to new its place
}
//DOESNT WORK!!!
void Heap::deleteMin()
{
swap(0, size-1);
heap[size-1] = 0;
size--;
trickleDown(0);
}
//need to modify deletemax and min - THESE DO NOT WORK!!!
void Heap::deleteMax()
{
int max = findMax(0);
swap(max, (size-1));
heap[size-1] = 0;
size--;
trickleDown(max);
}
void Minmax::deleteMin(){
int tmp= heap[1];
heap[1]=heap[size-1];
heap[size-1]=tmp;
size--;
trickleDown(1);
//std::cout << tmp << "has been deleted.\n\n";
}
void Minmax::deleteMax(){
int tmp;
//find larger of the two second level values
if(heap[2]>heap[3]){
tmp=heap[2];
heap[2]=heap[size-1];
heap[size-1]=tmp;
size--;
trickleDown(2);
}
else{
tmp=heap[3];
//place last value of the heap in place of the max value, trickle it down
heap[3] = heap[size-1];
heap[size-1]=tmp;
size--;
trickleDown(3);
}
std::cout<< tmp << " has been deleted.\n\n";
}
void Heap::heapify()
{
std::cout<<"original heap:"<<std::endl;
levelOrder();
int index = size-1;
for(int i = int(floor((index-1)/2)); i>=0; i--)
{
std::cout<<"i = "<<i<<std::endl;
trickleDown(i);
levelOrder();
std::cout<<"\n"<<std::endl;
}
}
void Minmax::buildheap(){
int ind = (size-1)/2;
for(int i=ind; i>0; i--){
trickleDown(i);
}
}
