void copyConstructorTester()
{
LinkedQueue<string> queue;
string items[] = {"zero", "one", "two", "three", "four", "five"};
for (int i = 0; i < 6; i++)
{
cout << "Adding " << items[i] << endl;
bool success = queue.enqueue(items[i]);
if (!success)
cout << "Failed to add " << items[i] << " to the queue." << endl;
}
cout << "Queue contains, from front to back, zero one two three four five." << endl;
LinkedQueue<string> copyOfQueue(queue);
cout << "Copy of queue contains, from front to back, ";
for (int i = 0; i < 6; i++)
{
cout << " " << copyOfQueue.peekFront();
copyOfQueue.dequeue();
}
cout << "." << endl;
cout << "Original queue contains, from front to back,";
for (int i = 0; i < 6; i++)
{
cout << " " << queue.peekFront();
queue.dequeue();
}
cout << "." << endl << endl;
} // end copyConstructorTester
void main()
{
LinkedQueue LQ;
string command;
cout << "추가 : en, 제거 : de, 종료 : quit" << endl;
while (true)
{
try
{
cin >> command;
if (command.compare("en") == 0)
{
int data;
cin >> data;
LQ.enqueue(data);
}
else if (command.compare("de") == 0)
LQ.dequeue();
else if (command.compare("quit") == 0)
return;
LQ.show();
cout << endl;
}
catch (const char *s)
void LevelOrder(BinaryTreeNode<T> *t)
{// Level-order traversal of *t.
LinkedQueue<BinaryTreeNode<T>*> Q;
while (t) {
Visit(t); // visit t
// put t's children on queue
if (t->LeftChild) Q.Add(t->LeftChild);
if (t->RightChild) Q.Add(t->RightChild);
// get next node to visit
try {Q.Delete(t);}
catch (OutOfBounds) {return;}
}
}
void AddLiveNode(LinkedQueue<T> &Q, T wt,
T& bestw, int i, int n)
{// Add node weight wt to queue Q if not leaf.
if (i == n) {// feasible leaf
if (wt > bestw) bestw = wt;}
else Q.Add(wt); // not a leaf
}
void Solver::addIfPossibleAndNotVissited(LinkedQueue<Cell*>& queue, Cell* pCell){
if(pCell && !pCell->isVisited() && !pCell->isWall()){
pCell->mark();
queue.enqueue(pCell);
}
}
void CopyConstructorAndAssignmentTester() {
LinkedQueue<string> queue;
string items[] = {"zero", "one", "two", "three", "four", "five"};
for (int i = 0; i < 6; i++) {
cout << "Adding " << items[i] << endl;
bool success = queue.Enqueue(items[i]);
if (!success)
cout << "Failed to add " << items[i] << " to the queue." << endl;
}
cout << "Queue contains, from front to back, zero one two three four five." << endl;
cout << "Checking Copy Constructor tester " << endl;
LinkedQueue<string> copy_of_queue(queue);
cout << "Copy of queue contains, from front to back,";
for (int i = 0; i < 6; i++)
{
cout << " " << copy_of_queue.PeekFront();
copy_of_queue.Dequeue();
}
cout << "." << endl;
cout << "Checking Assignment Operator tester " << endl;
LinkedQueue<string> assigned_queue;
assigned_queue.Enqueue("ha");
assigned_queue.Enqueue("ba");
assigned_queue = queue;
cout << assigned_queue << endl;
cout << "Assigned queue contains, from front to back, ";
for (int i = 0; i < 6; i++)
{
cout << " " << assigned_queue.PeekFront();
assigned_queue.Dequeue();
}
cout << "." << endl;
cout << "Original queue contains, from front to back,";
for (int i = 0; i < 6; i++) {
cout << " " << queue.PeekFront();
queue.Dequeue();
}
cout << "." << endl << endl;
} // end copyConstructorTester
int main()
{
LinkedQueue<string> frontmen;
frontmen.enqueue("Dave Grohl");
frontmen.enqueue("Bono");
frontmen.enqueue("Chester Bennington");
while (!frontmen.empty())
{
cout << frontmen.front() << endl;
cout << frontmen.size() << endl;
frontmen.dequeue();
}
return 0;
}
T MaxLoading(T w[], T c, int n)
{// Return value of best loading.
// Use FIFO branch and bound.
// initialize for level 1 start
LinkedQueue<T> Q; // live-node queue
Q.Add(-1); // end-of-level marker
int i = 1; // level of E-node
T Ew = 0, // weight of E-node
bestw = 0; // best weight so far
// search subset space tree
while (true) {
// check left child of E-node
if (Ew + w[i] <= c) // x[i] = 1
AddLiveNode(Q, Ew + w[i], bestw, i, n);
// right child is always feasible
AddLiveNode(Q, Ew, bestw, i, n); // x[i] = 0
Q.Delete(Ew); // get next E-node
if (Ew == -1) { // end of level
if (Q.IsEmpty()) return bestw;
Q.Add(-1); // end-of-level marker
Q.Delete(Ew); // get next E-node
i++;} // level number of Ew
}
}
void Solver::getAllCells(Table matrix, Cell* startingCell){
LinkedQueue<Cell*> linkedQueue;
linkedQueue.enqueue(startingCell);
Cell* newCell = NULL;
while (!linkedQueue.isEmpty()) {
Cell* curCell;
linkedQueue.dequeue(curCell);
curCell->mark();
dArray.addElement(curCell);
for(int index = 0; index < 4; ++index){
if(matrix.validNextMove(curCell, index)){
newCell = matrix.getElement(curCell->getRow() + dx[index], curCell->getCol() + dy[index]);
addIfPossibleAndNotVissited(linkedQueue, newCell);
}
}
}
}
void horse_queue(Point start, Point end) {
LinkedQueue<Position> q;
q.enqueue(start);
board[start.first][start.second] = true;
Position current;
LinkedStack<LinkedQueue<Position> > history;
LinkedQueue<Position> level;
int currentMove = 0;
history.push(level);
while (!q.empty() && (current = q.dequeue()).p != end) {
if (current.move == currentMove) {
history.peek().enqueue(current);
} else {
// current.move == currentMove + 1
currentMove = current.move;
LinkedQueue<Position> level;
level.enqueue(current);
history.push(level);
}
for(int dx = -2; dx <= 2; dx++)
if (dx != 0)
for(int sign = -1; sign <= 1; sign += 2) {
int dy = sign * (3 - abs(dx));
Point newstart(current.p.first + dx,
current.p.second + dy);
Position newposition(newstart, current.move + 1);
if (inside_board(newstart)
&&
!board[newstart.first][newstart.second]) {
q.enqueue(newposition);
clog << newposition << endl;
board[newstart.first][newstart.second] = true;
}
}
}
// current == end -- успех
// q.empty() -- неуспех
clog << history;
history.pop();
if (current.p == end) {
cout << "Успех за " << current.move << " хода!" << endl;
LinkedStack<Point> path;
path.push(current.p);
while(!history.empty()) {
// в history.peek() търсим първата позиция position,
// за която isValidMove(current.p,position.p)
Position position;
while (!isValidMove(current.p,
(position = history.peek().dequeue()).p));
// знаем, че isValidMove(current.p,position.p)
// добавим position в пътя
path.push(position.p);
history.pop();
current = position;
}
cout << path << endl;
}
else
cout << "Неуспех!" << endl;
}
int mains() {
// Demonstrate that our LinkedQueue works.
LinkedQueue numbers;
numbers.Add(4);
numbers.Add(8);
numbers.Add(15);
numbers.Add(16);
numbers.Add(23);
numbers.Add(42);
while (numbers.Size() > 0) {
int data = numbers.Remove();
cout << "Removed " << data << endl;
}
// This seems to work! Yay!
// But there are sinister bugs hidden from view...
// First, what happened to the Nodes that got unlinked from the queue?
// Second, what happens if I Remove from an empty queue?
// Now that we've fixed those errors...
// Third, what's up with this code?
LinkedQueue second;
second.Add(1);
LinkedQueue copy = second; // make a copy of second
copy.Add(2);
cout << second.Size() << endl; // output: 1
cout << copy.Size() << endl; // output: 2
second.Remove();
copy.Remove();
// whoops! What happened?
// One final bug:
if (true) {
LinkedQueue third;
third.Add(5);
third.Add(6);
// What happens when third goes out of scope?
// What do we need to fix this?
}
for (int i = 0; i < 0; i++) {
LinkedQueue temp;
temp.Add(1);
temp.Add(1);
temp.Add(1);
temp.Add(1);
temp.Add(1);
}
LinkedQueue empty;
cout << empty.Remove();
return 0;
}
bool FindPath(Position start, Position finish,
int& PathLen, Position * &path)
{// Find a path from start to finish.
// Return true if successful, false if impossible.
// Throw NoMem exception if inadequate space.
if ((start.row == finish.row) &&
(start.col == finish.col))
{PathLen = 0; return true;} // start = finish
// initialize wall of blocks around grid
for (int i = 0; i <= m+1; i++) {
grid[0][i] = grid[m+1][i] = 1; // bottom & top
grid[i][0] = grid[i][m+1] = 1; // left & right
}
// initialize offsets
Position offset[4];
offset[0].row = 0; offset[0].col = 1; // right
offset[1].row = 1; offset[1].col = 0; // down
offset[2].row = 0; offset[2].col = -1; // left
offset[3].row = -1; offset[3].col = 0; // up
int NumOfNbrs = 4; // neighbors of a grid position
Position here, nbr;
here.row = start.row;
here.col = start.col;
grid[start.row][start.col] = 2; // block
// label reachable grid positions
LinkedQueue<Position> Q;
do {// label neighbors of here
for (int i = 0; i < NumOfNbrs; i++) {
nbr.row = here.row + offset[i].row;
nbr.col = here.col + offset[i].col;
if (grid[nbr.row][nbr.col] == 0) {
// unlabeled nbr, label it
grid[nbr.row][nbr.col]
= grid[here.row][here.col] + 1;
if ((nbr.row == finish.row) &&
(nbr.col == finish.col)) break; // done
Q.Add(nbr);} // end of if
} // end of for
// have we reached finish?
if ((nbr.row == finish.row) &&
(nbr.col == finish.col)) break; // done
// finish not reached, can we move to a nbr?
if (Q.IsEmpty()) return false; // no path
Q.Delete(here); // get next position
} while(true);
// construct path
PathLen = grid[finish.row][finish.col] - 2;
path = new Position [PathLen];
// trace backwards from finish
here = finish;
for (int j = PathLen-1; j >= 0; j--) {
path[j] = here;
// find predecessor position
for (int i = 0; i < NumOfNbrs; i++) {
nbr.row = here.row + offset[i].row;
nbr.col = here.col + offset[i].col;
if (grid[nbr.row][nbr.col] == j+2) break;
}
here = nbr; // move to predecessor
}
return true;
}
int main()
{
ifstream inputFile;
string fileName; // Holds the user-inputted file name
string fileLine; // Holds the line extracted from the file
string expression; // Holds the expression to be tested
bool ableToOpen; // Flag to see if file exists
bool isBalanced; // Flag for balanced expression
cout << "Create queue object lq\n\n";
LinkedQueue<string> lq;
cout << "Get the fle input\n\n";
do
{ // Ask user for file name and attempt to open
cout << "Enter input file name: ";
cin >> fileName;
ableToOpen = openFileIn(inputFile, fileName);
if (!ableToOpen)
cout << fileName << " cannot be opened." << endl;
} while (!ableToOpen);
// Read lines from the file and put into queue object
getline(inputFile, fileLine);
while (inputFile)
{
lq.enqueue(fileLine);
getline(inputFile, fileLine);
} // end while
inputFile.close();
cout << "\n\n\nAfter getting the file input, test other functions*******\n";
cout << "Create lq1, a copy of the queue\n\n";
LinkedQueue<string> lq1(lq);
cout << "Display the contents of the copy queue lq1:\n";
cout << lq1 << endl;
cout << "\nAttempt to peek the now empty queue lq1:\n";
try
{
lq1.peekFront();
}
catch (PrecondViolatedExcep e)
{
cout << e.what();
}
cout << "\nAssign lq to lq1 and then display lq1:\n";
lq1 = lq;
cout << lq1;
cout << "\nPut the first string in lq into a stack of chars, ls1\n\n";
LinkedStack<char> ls1;
string firstLine = lq.peekFront();
for (unsigned int i = 0; i < firstLine.length(); i++)
{
ls1.push(firstLine[i]);
} // end for
cout << "Create a copy, ls2, of the stack and display the copy:\n";
LinkedStack<char> ls2(ls1);
cout << ls2;
cout << "\n\nAssign the first stack, ls1, to the second stack, ls2, and then display the second stack:\n";
ls2 = ls1;
cout << ls2;
cout << "\n\n\n\nDo the expression checking:\n\n\n";
while (!lq.isEmpty())
{
expression = lq.peekFront();
lq.dequeue();
cout << "The next string is:\t" << expression;
isBalanced = checkExpression(expression);
if (isBalanced)
cout << "\tis a correct expression\n\n\n";
else
cout << "\tis NOT a correct expression\n\n\n";
} // end while
// Program Over
cout << "Program Over\n\n";
cin.ignore();
cout << "Press Enter to end --> ";
cin.ignore();
cout << endl;
return 0;
} // end main