int main() {
// Create LeftistHeap
/*
LeftistHeap LHeap;
// Build LHeap using insert
int v;
ifstream dataFile ("data.txt");
if(dataFile.is_open())
while(dataFile >> v)
{
LHeap.insert(v);
cout << "At insert: " << v << endl;
LHeap.print();
//LHeap.print();
}
dataFile.close();
// Test result of inserts
LHeap.print();
cout << endl;
// Test findMin
//cout << LHeap.findMin() << endl;
// Test result of deleteMins
cout << "DeleteMin: " << endl;
cout << LHeap.deleteMin() << endl;
cout << LHeap.deleteMin() << endl;
cout << LHeap.deleteMin() << endl;
cout << endl;
// Check final heap
LHeap.print();*/
cout << endl << "---" << endl << endl;
// Create SkewHeap
SkewHeap SHeap;
int v;
// Build SHeap using insert
ifstream dataFile2 ("data.txt");
if(dataFile2.is_open())
while(dataFile2 >> v)
{
SHeap.insert(v);
cout << "At insert: " << v << endl;
SHeap.print();
}
dataFile2.close();
// Test result of inserts
SHeap.findMin();
SHeap.print();
cout << endl;
// Test findMin
//cout << SHeap.findMin() << endl;
// Test result of deleteMins
//
cout << "Skew deleteMin: " << endl;
cout << SHeap.deleteMin() << endl;
/*cout << SHeap.deleteMin() << endl;
cout << SHeap.deleteMin() << endl;
cout << endl;*/
// Check final heap
SHeap.print();
return 0;
}
void heapTests(int seed, int s) {
srand(seed); // seed the random number generator
int array[s]; // create the array to hold random numbers
int deletes = 0, inserts = 0;
for (int i = 0; i < s; i++)
array[i] = rand() % (4 * s) + 1; // number between 1 to 4n + 1
Timer t;
// binary heap building
cout << "Binary Heap\n";
t.start();
BinaryHeap bHeap(array, s);
cout << "Build time: ";
t.printTime(t.stop());
// binary heap insert/deleteMin
srand(seed);
t.start();
for (int j = 0; j < s * 0.1; j++) {
float r = (float)rand() / (float)RAND_MAX;
if (r < 0.5) {
bHeap.deleteMin();
deletes++;
} else {
bHeap.insert(rand() % (4 * s) + 1);
inserts++;
}
}
cout << "Insert/Delete Time: ";
t.printTime(t.stop());
cout << inserts << " inserts\n";
cout << deletes << " deletes\n\n";
// leftist heap building
inserts = 0;
deletes = 0;
cout << "LeftistHeap Heap\n";
t.start();
LeftistHeap lHeap;
for (int i = 0; i < s; i++) {
lHeap.insert(array[i]);
}
cout << "Build time: ";
t.printTime(t.stop());
// leftist heap insert/deleteMin
srand(seed);
t.start();
for (int j = 0; j < s * 0.1; j++) {
float r = (float)rand() / (float)RAND_MAX;
if (r < 0.5) {
lHeap.deleteMin();
deletes++;
} else {
lHeap.insert(rand() % (4 * s) + 1);
inserts++;
}
}
cout << "Insert/Delete Time: ";
t.printTime(t.stop());
cout << inserts << " inserts\n";
cout << deletes << " deletes\n\n";
// skew heap building
inserts = 0;
deletes = 0;
cout << "Skew Heap\n";
t.start();
SkewHeap sHeap;
for (int i = 0; i < s; i++) {
sHeap.insert(array[i]);
}
cout << "Build time: ";
t.printTime(t.stop());
// skew heap insert/delete
srand(seed);
t.start();
for (int j = 0; j < s * 0.1; j++) {
float r = (float)rand() / (float)RAND_MAX;
if (r < 0.5) {
sHeap.deleteMin();
deletes++;
} else {
sHeap.insert(rand() % (4 * s) + 1);
inserts++;
}
}
cout << "Insert/Delete Time: ";
t.printTime(t.stop());
cout << inserts << " inserts\n";
cout << deletes << " deletes\n\n";
}