TEST_F(SortingTest, ShouldReturnAscendingSortedIfAlreadyDescending) {
Sorting sorting;
vector<int> sorted = sorting.selectionSort(desAges);
ASSERT_EQ(10, sorted.front());
ASSERT_EQ(30, sorted.back());
}
TEST_F(SortingTest, ShouldReturnTheSameOrderIfAlreadySorted) {
Sorting sorting;
vector<int> sorted = sorting.selectionSort(ascAges);
ASSERT_EQ(sorted.front(), ascAges.front());
ASSERT_EQ(sorted.back(), ascAges.back());
}
TEST_F(SortingTest, ShouldReturnSortedIfNotSorted) {
Sorting sorting;
vector<int> sorted = sorting.selectionSort(randAges);
ASSERT_EQ(10, sorted.front());
ASSERT_EQ(30, sorted.back());
}
int main()
{
int length;
int *array;
cout << "Enter the length of the array" << endl;
cin >> length;
array = new int[length];
cout << "Enter the values of the array" << endl;
for(int i = 0; i< length ; i++)
{
cin >> array[i];
}
Sorting objSort;
//Selection Sort
// objSort.selectionSort(array, length);
//Bubble Sort
// objSort.bubbleSort(array, length);
//Insertion Sort
//objSort.insertionSort(array, length);
//QuickSort
//objSort.quickSort(array,0,length-1);
//ShellSort
// objSort.shellSort(array, length);
//MergeSort
objSort.mergeSort(array, 0, length-1);
delete[] array;
return 0;
}
//closest to zero sum
void minAbsSumPair(int A[], int n)
{
/* Array should have at least two elements*/
if(n < 2)
{
cout<<"Invalid Input";
return;
}
Sorting *obj = &Sorting();
obj->SetArray(A, n);
obj->InsertionSort();
// left and right index variables
int l = 0, r = n-1;
int sum,minsum=A[r];
int min_l,min_r;
while(l<r)
{
sum=A[l]+A[r];
if(abs (minsum) > abs(sum))
{ minsum=sum;
min_l = l;
min_r = r;
}
if(sum >= 0)
r--;
else
l++;
}
cout<<"min sum is "<<A[min_l]<< " + " <<A[min_r]<<" = "<< minsum;
}
void testSorting(int argc, char **argv) {
Sorting t;
vector<int> A = buildVector(argc, argv);
t.flipSort(A);
// t.radixSort(A);
copy(A.begin(), A.end(), ostream_iterator<int>(cout, " "));
cout << endl;
}
TEST_F(SortingTest, ShouldSwapVariableContents) {
Sorting sorting;
int a = 10, b = 20;
sorting.swap(a, b);
ASSERT_EQ(10, b);
ASSERT_EQ(20, a);
}
TEST_F(SortingTest, ShouldReturnSortedForLargeGroupOfNumber) {
Sorting sorting;
vector<int> actual = sorting.selectionSort(lrgAges);
for (int idx = 0; idx < lrgAges.size(); idx++) {
ASSERT_EQ(sortedLrgAges.at(idx), actual.at(idx));
}
}
bool CheckDuplicacy(int *Arr,int len)
{
Sorting *obj = &Sorting();
obj->SetArray(Arr, len);
obj->InsertionSort();
for (int i=0;i<len;i++)
{ if (Arr[i]=Arr[i+1])
return true;
}
return false;
}
int main()
{
Sorting sort;
//sort.BubbleSort();
//sort.SelectionSort();
//sort.InsertionSort();
//sort.ShellSort();
sort.MergeSort();
//sort.QuickSortDriver();
system("PAUSE");
}
int main(){
int arr[] = {10,3,-5,8,2,5,-12,3,13,4,0,0,INT_MAX,INT_MIN};
Sorting srt;
srt.sort(arr, sizeof(arr)/sizeof(int));
for (unsigned int i = 0; i < sizeof(arr)/sizeof(int); ++i){
cout << arr[i] << " ";
}
cout << endl;
return 0;
}
void Assign::assign(vector <Student*> Courses[NUM_COURSES], vector <Student*> TA, vector <int> TAships){
vector <Student*> assignment[NUM_COURSES];
Sorting sort;
unsigned int i,j;
// add heuristics, ex: karl's note about constrained TAs
// final resort
while (!constraint_course(assignment,TAships)/*||!constraint_guarantee(Courses)*/){
for (i=0;i<NUM_COURSES;i++){
//cout << assignment[i].size() << " " << TAships[i] << endl;
if(assignment[i].size()<(unsigned)TAships[i]){
assignment[i].push_back(Courses[i][0]);
//cout << "Added "<< assignment[i][assignment[i].size()-1]->firstName << " " << assignment[i][assignment[i].size()-1]->TAhoursOwed << " to course " << i << endl;
TA[Courses[i][0]->id]->TAhoursOwed -= 54;
TA[Courses[i][0]->id]->TAshipsWanted -= 54;
TA[Courses[i][0]->id]->TAshipsWanted -= 54;
TA[Courses[i][0]->id]->minWilling -= 54;
TA[Courses[i][0]->id]->maxWilling -= 54;
TA[Courses[i][0]->id]->minTA -= 54;
TA[Courses[i][0]->id]->maxTA -= 54;
sort.sort(TA,Courses);
} /*else if (constraint_course(assignment,TAships)&&!constraint_guarantee(Courses)){
assignment[i].push_back(Courses[i][0]);
cout << "Added "<< assignment[i][assignment[i].size()-1]->firstName << "to course " << i << endl;
TA[Courses[i][0]->id]->TAhoursOwed -= 54;
TA[Courses[i][0]->id]->TAshipsWanted -= 54;
TA[Courses[i][0]->id]->TAshipsWanted -= 54;
TA[Courses[i][0]->id]->minWilling -= 54;
TA[Courses[i][0]->id]->maxWilling -= 54;
TA[Courses[i][0]->id]->minTA -= 54;
TA[Courses[i][0]->id]->maxTA -= 54;
sort.sort(TA,Courses);
} */
}
}
//print assignment
for(i=0;i<NUM_COURSES;i++){
cout << "course " << i;
for (j=0;j<assignment[i].size();j++){
cout << " " << assignment[i][j]->firstName;
}
cout << endl;
}
//return assignment; need to find out how to return vector <student*> assignment[NUM_COURSES]
}
int main()
{
Sorting test = Sorting();
//get the users input
int input;
string title;
while(input != 6)
{
displayMenu();
cin >> input;
//clear out cin
cin.clear();
cin.ignore(10000,'\n');
switch (input)
{
case 1: //initialize array
test.initializeArray();
break;
case 2: //apply algorithms
test.runAlgorithms();
break;
case 3: //display results
break;
case 4: //learn more
test.moreInformation();
break;
case 5: // change the array settings
test.settings();
break;
case 6:
cout << "Goodbye!" << endl;
break;
default:
cout << "Invalid Input" << endl;
cin.clear();
cin.ignore(10000,'\n');
break;
}
}
return 0;
}
int hasArrayTwoCandidates(int A[], int size, int k)
{
Sorting *obj = &Sorting();
obj->SetArray(A, size);
obj->InsertionSort();
int left=0;
int right=size-1;
while(left<right)
{
if (A[left]+A[right] == k )
{ cout<<"number are "<<A[left] <<" ,"<<A[right]<<endl;
return 1;
}
if ( A[left]+A[right] < k)
left++;
else
right-- ;
}
return 0;
}
int MaxOccurance(int *Arr,int len)
{
int currentcount=0,maxc=0;
Sorting *obj = &Sorting();
obj->SetArray(Arr, len);
obj->InsertionSort();
int currentcandidate=Arr[0],maxcandidate = Arr[0];
for(int i=0;i<len;i++)
{ if(Arr[i]==currentcandidate)
currentcount++;
else
{
currentcandidate=Arr[i];
currentcount=1;
}
if(currentcount>maxc)
{
maxc=currentcount;
maxcandidate=currentcandidate;
}
}
return maxcandidate;
}
/*
* This function prints the Averages from the tests after running through all the tests.
*
* int max_size = maximum size that we want to test each sorting algorithm to
* int min_size = minimum size that we want to test each sorting algorithm to
* string theSort = string that contains tha name of the sorting algorithm we are testing.
*
* Worst-Case Time Complexity: Θ(n^2 + n^2 + n^2 + n^2) = Θ(n^2)
*/
void testing(int min_size, int max_size, string algorithm){
// making sure I know what the size of each tests I'm doing
const int& tests = 5;
const int& test_size = 10;
// making sure each size of the array is a set value
const int& array_size = 10;
// average cpu_time arrays for each data set
float* increasing_array_averages = new float[array_size];
float* decreasing_array_averages = new float[array_size];
float* random_array_averages = new float[array_size];
float* constant_array_averages = new float[array_size];
std::cout << "\nIncreasing Array using " << algorithm << std::endl;
// run 10 size instances (10000, 20000, 30000, etc.)
for (int i = 0; i < test_size; i++){
std::cout << max_size << " instances." << std::endl;
// instantiate average value and sum value to zero on every new test.
float average = 0.0;
float sum = 0.0;
// create new cpu_times array on every new test.
float* cpu_times = new float[5];
// run five tests
for (int j = min_size; j < tests; j++){
// set time to 0 before running the cpu times
float time = 0.0;
// instantiate new array for increasing ordered array.
int* increasingArray = ag.generateIncreasingArray(max_size);
if (algorithm == "insertionSort"){
clock_t c_start = clock();
s.insertionSort(increasingArray, max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
else if (algorithm == "bubbleSort"){
clock_t c_start = clock();
s.bubbleSort(increasingArray, max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
else if (algorithm == "quickSort"){
clock_t c_start = clock();
s.quickSort(increasingArray, max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
else if (algorithm == "mergeSort"){
clock_t c_start = clock();
s.mergeSort(increasingArray, max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
else {
clock_t c_start = clock();
s.selectionSort(increasingArray, max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
//std::cout << "CPU Time (IncreasingArray): " << fixed << setprecision(3) << time << " ms." << std::endl;
std::cout << fixed << setprecision(3) << time << " ms" << std::endl;
// add cpu time to cpu_times array
cpu_times[j] = time;
// delete array at the end of each run to avoid memory leaks and faulty data
delete[] increasingArray;
}
// add up the cpu_times values
for (int j = 0; j < 5; j++){
sum += cpu_times[j];
}
// find average value
average = sum / 5.0;
//std::cout << "Average time (" << max_size << " instances): " << average << "ms.\n" << std::endl;
std::cout << fixed << setprecision(3) << average << " ms\n" << std::endl;
// add average value to increasing_array_averages array per number of runs
increasing_array_averages[i] = average;
// once we pass our last instance (100000) break.
if (max_size == 100000){
break;
}
// go to the next instance (10000 to 20000)
max_size += 10000;
// delete cpu_times array to avoid memory leaks or faulty data
delete[] cpu_times;
}
// start max_size back at 10000
max_size = 10000;
std::cout << "\nDecreasing Array using " << algorithm << std::endl;
// run 10 size instances (10000, 20000, 30000, etc.)
for (int i = min_size; i < test_size; i++){
std::cout << max_size << " instances." << std::endl;
// instantiate average value and sum value to zero on every new test.
float average = 0.0;
float sum = 0.0;
// create new cpu_times array on every new test.
float* cpu_times = new float[5];
// run five tests
for (int j = min_size; j < tests; j++){
// set time to 0 before running the cpu times
float time = 0.0;
// instantiate new decreasing order array every run.
int* decreasingArray = ag.generateDecreasingArray(max_size);
if (algorithm == "insertionSort"){
clock_t c_start = clock();
s.insertionSort(decreasingArray, max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
else if (algorithm == "bubbleSort"){
clock_t c_start = clock();
s.bubbleSort(decreasingArray, max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
else if (algorithm == "quickSort"){
clock_t c_start = clock();
s.quickSort(decreasingArray, max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
else if (algorithm == "mergeSort"){
clock_t c_start = clock();
s.mergeSort(decreasingArray, max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
else {
clock_t c_start = clock();
s.selectionSort(decreasingArray, max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
//std::cout << "CPU Time (DecreasingArray): " << fixed << setprecision(3) << time << " ms." << std::endl;
std::cout << fixed << setprecision(3) << time << " ms" << std::endl;
// add cpu time to cpu_times array
cpu_times[j] = time;
// delete array at the end of each run to avoid memory leaks and faulty data
delete[] decreasingArray;
}
// add up the cpu_times values
for (int j = 0; j < 5; j++){
sum += cpu_times[j];
}
// find average value
average = sum / 5.0;
//std::cout << "Average time (" << max_size << " instances): " << fixed << setprecision(3) << average << "ms.\n" << std::endl;
std::cout << fixed << setprecision(3) << average << " ms\n" << std::endl;
// add average value to decreasing_array_averages array per number of runs
decreasing_array_averages[i] = average;
// once we pass our last instance (100000) break.
if (max_size == 100000){
break;
}
// go to the next instance (10000 to 20000)
max_size += 10000;
// delete cpu_times array to avoid memory leaks or faulty data
delete[] cpu_times;
}
// start max_size back at 10000
max_size = 10000;
std::cout << "\nRandom Array using " << algorithm << std::endl;
// run 10 size instances (10000, 20000, 30000, etc.)
for (int i = min_size; i < test_size; i++){
std::cout << max_size << " instances." << std::endl;
// instantiate average value and sum value to zero on every new test.
float average = 0.0;
float sum = 0.0;
// create new cpu_times array on every new test.
float* cpu_times = new float[5];
// run five tests
for (int j = min_size; j < tests; j++){
// set time to 0 before running the cpu times
float time = 0.0;
// instantiate new random order array every run.
int* randomArray = ag.generateRandomArray(max_size);
if (algorithm == "insertionSort"){
clock_t c_start = clock();
s.insertionSort(randomArray, max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
else if (algorithm == "bubbleSort"){
clock_t c_start = clock();
s.bubbleSort(randomArray, max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
else if (algorithm == "quickSort"){
clock_t c_start = clock();
s.quickSort(randomArray, max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
else if (algorithm == "mergeSort"){
clock_t c_start = clock();
s.mergeSort(randomArray, max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
else {
clock_t c_start = clock();
s.selectionSort(randomArray, max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
//std::cout << "CPU Time (RandomArray): " << fixed << setprecision(3) << time << " ms." << std::endl;
std::cout << fixed << setprecision(3) << time << " ms" << std::endl;
// add cpu time to cpu_times array
cpu_times[j] = time;
// delete array at the end of each run to avoid memory leaks and faulty data
delete[] randomArray;
}
// add up the cpu_times values
for (int j = 0; j < 5; j++){
sum += cpu_times[j];
}
// find average value
average = sum / 5.0;
//std::cout << "Average time (" << max_size << " instances): " << fixed << setprecision(3) << average << "ms.\n" << std::endl;
std::cout << fixed << setprecision(3) << average << " ms\n" << std::endl;
// add average value to random_array_averages array per number of runs
random_array_averages[i] = average;
// once we pass our last instance (100000) break.
if (max_size == 100000){
break;
}
// go to the next instance (10000 to 20000)
max_size += 10000;
// delete cpu_times array to avoid memory leaks or faulty data
delete[] cpu_times;
}
// start max_size back at 10000
max_size = 10000;
std::cout << "\nConstant Array using " << algorithm << std::endl;
// run 10 size instances (10000, 20000, 30000, etc.)
for (int i = 0; i < test_size; i++){
std::cout << max_size << " instances." << std::endl;
// instantiate average value and sum value to zero on every new test.
float average = 0.0;
float sum = 0.0;
// create new cpu_times array on every new test.
float* cpu_times = new float[5];
// run five tests
for (int j = 0; j < 5; j++){
// set time to 0 before running the cpu times
float time = 0.0;
if (algorithm == "insertionSort"){
clock_t c_start = clock();
s.insertionSort(ag.generateConstArray("Awesome", max_size), max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
else if (algorithm == "bubbleSort"){
clock_t c_start = clock();
s.bubbleSort(ag.generateConstArray("Awesome", max_size), max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
else if (algorithm == "quickSort"){
clock_t c_start = clock();
s.quickSort(ag.generateConstArray("Awesome", max_size), max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
else if (algorithm == "mergeSort"){
clock_t c_start = clock();
s.mergeSort(ag.generateConstArray("Awesome", max_size), max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
else {
clock_t c_start = clock();
s.selectionSort(ag.generateConstArray("Awesome", max_size), max_size);
clock_t c_end = clock();
time = 1000 * (float(c_end) - float(c_start)) / CLOCKS_PER_SEC;
}
//std::cout << "CPU Time (ConstantArray): " << fixed << setprecision(3) << time << " ms." << std::endl;
std::cout << fixed << setprecision(3) << time << " ms" << std::endl;
// add cpu time to cpu_times array
cpu_times[j] = time;
// delete array at the end of each run to avoid memory leaks and faulty data
delete[] ag.generateConstArray("Awesome", max_size);
}
// add up the cpu_times values
for (int j = 0; j < 5; j++){
sum += cpu_times[j];
}
// find average value
average = sum / 5.0;
//std::cout << "Average time (" << max_size << " instances): " << fixed << setprecision(3) << average << " ms.\n" << std::endl;
std::cout << fixed << setprecision(3) << average << " ms\n" << std::endl;
// add average value to constant_array_averages array per number of runs
constant_array_averages[i] = average;
// once we pass our last instance (100000) break.
if (max_size == 100000){
break;
}
// go to the next instance (10000 to 20000)
max_size += 10000;
// delete cpu_times array to avoid memory leaks or faulty data
delete[] cpu_times;
}
// print averages of each array generated.
printAverages(increasing_array_averages, decreasing_array_averages, random_array_averages, constant_array_averages, array_size, algorithm);
// delete each array we used to hold specific (generated arrays) of averages from each test.
delete[] constant_array_averages;
delete[] random_array_averages;
delete[] decreasing_array_averages;
delete[] increasing_array_averages;
}
int main() {
Sorting sortClass;
int sortMe[LIST_SIZE] = { 15, 14, 16, 7, 4, 8, 1 };
// INITIAL ARRAY
sortClass.LoadArray(sortMe);
cout << "THE INITIAL LIST CONTAINS" << endl;
sortClass.DisplayArray();
cout << endl;
// BUBBLE SORT
sortClass.LoadArray(sortMe);
cout << "BEGIN BUBBLE SORT" << endl;
sortClass.BubbleSort();
sortClass.DisplayArray();
// INSERTION SORT
sortClass.LoadArray(sortMe);
cout << "BEGIN INSERTION SORT" << endl;
sortClass.InsertionSort();
sortClass.DisplayArray();
// SELECTION SORT
sortClass.LoadArray(sortMe);
cout << "BEGIN SELECTION SORT" << endl;
sortClass.SelectionSort();
sortClass.DisplayArray();
return 0;
}
