#include #include #include #include #include using namespace std; //Used from int index_of_largest(const int array[], int startIndex, const int size); void selectSort(int a[], const int size); void swap(int& i1, int& it2); void fileOption(); void inputOption(); void unique(const int inputArray[], int uniqueArray[], int countArray[], const int size); void printFileScreen(const int uniqueArray[], const int countArray[], const int size); int main() { // int size; char userInput[5]; // cout << \"Read file from Input file? (Y/N) \"; cin >> userInput; if(toupper(userInput[0]) == \'Y\') { fileOption(); } else { inputOption(); } return 0; } void selectSort(int array[], const int size) { int smallestIndex; for(int i = 0;i < size - 1;i++) { smallestIndex = index_of_largest(array , i , size); swap(array[i] , array[smallestIndex]); } } void swap(int& i1, int& i2) { int temp; temp = i1; i1 = i2; i2 = temp; } int index_of_largest(const int array[], int startIndex, const int size) { int min = array[startIndex] , index_of_min = startIndex; for(int i = startIndex + 1;i < size;i++) if(array[i] > min) { min = array[i]; index_of_min = i; } return index_of_min; } void unique(const int inputArray[], int uniqueArray[], int countArray[], const int size) { int number; int j = 0; int index; for(int i = 0;i < size;i++) { int flag = 0; number = inputArray[i]; //for each element in inputArray, check if it is there in uniqueArray for (int k = 0; k < j; ++k) { if(number == uniqueArray[k]) { flag = 1; index = k; } } if(flag == 0) { //if so, increment the countArray by 1 countArray[j]++; // copy the element to uniqueArray uniqueArray[j] = number; j++; } else countArray[index]++; } } void fileOption() { int inputArray[50]; int countArray[50] = {0}; int uniqueArray[50]= {0}; ifstream in_stream; char fileName[16]; cout << \"What file would you like to obtain input from? \"; cin >> fileName; in_stream.open(fileName); if(in_stream.fail()) { cout << \"Error: Could not open file!\" << endl; exit(1); } int size = 0; while(in_stream >> inputArray[size]) { size++; } selectSort(inputArray , size); unique(inputArray , uniqueArray , countArray , size); printFileScreen(uniqueArray , countArray , size); } void inputOption() { int inputArray[50]; int countArray[50] = {0}; int uniqueArray[50] = {0}; int size; cout << \"How many numbers would you like to enter? \"; cin >> size; cout << \"Enter numbers:\" << endl; for(int i = 0;i < size;i++) { cin >> inputArray[i]; } selectSort(inputArray , size); unique(inputArray , uniqueArray , countArray , size); printFileScreen(uniqueArray , countArray , size); } void printFileScreen(const int uniqueArray[], const int countArray[], const int size) { //cout << \"jaja\"; ofstream output_file; output_file.open(\"lab3Exercise2.txt\"); if(output_file.fail()) { cout << \"Error: Could not open file!\" << endl; exit(1); } output_file << \"N\\t\" << \"count\ \"; for(int i = 0;i < size;i++) { if(uniqueArray[i] != 0) { output_file << uniqueArray[i] << \"\\t\"; outpu.

1. #include
#include
#include
#include
#include
using namespace std;
//Used from
int index_of_largest(const int array[], int startIndex, const int size);
void selectSort(int a[], const int size);
void swap(int& i1, int& it2);
void fileOption();
void inputOption();
void unique(const int inputArray[], int uniqueArray[], int countArray[], const int size);
void printFileScreen(const int uniqueArray[], const int countArray[], const int size);
int main()
{
// int size;
char userInput[5];
//
cout << "Read file from Input file? (Y/N) ";
cin >> userInput;
if(toupper(userInput[0]) == 'Y')
{
fileOption();
}
else
{
inputOption();
}
return 0;
}
void selectSort(int array[], const int size)
{
int smallestIndex;
for(int i = 0;i < size - 1;i++)

2. {
smallestIndex = index_of_largest(array , i , size);
swap(array[i] , array[smallestIndex]);
}
}
void swap(int& i1, int& i2)
{
int temp;
temp = i1;
i1 = i2;
i2 = temp;
}
int index_of_largest(const int array[], int startIndex, const int size)
{
int min = array[startIndex] , index_of_min = startIndex;
for(int i = startIndex + 1;i < size;i++)
if(array[i] > min)
{
min = array[i];
index_of_min = i;
}
return index_of_min;
}
void unique(const int inputArray[], int uniqueArray[], int countArray[], const int size)
{
int number;
int j = 0;
int index;
for(int i = 0;i < size;i++)
{
int flag = 0;
number = inputArray[i];
//for each element in inputArray, check if it is there in uniqueArray
for (int k = 0; k < j; ++k)
{
if(number == uniqueArray[k])

3. {
flag = 1;
index = k;
}
}
if(flag == 0)
{
//if so, increment the countArray by 1
countArray[j]++;
// copy the element to uniqueArray
uniqueArray[j] = number;
j++;
}
else
countArray[index]++;
}
}
void fileOption()
{
int inputArray[50];
int countArray[50] = {0};
int uniqueArray[50]= {0};
ifstream in_stream;
char fileName[16];
cout << "What file would you like to obtain input from? ";
cin >> fileName;
in_stream.open(fileName);
if(in_stream.fail())
{
cout << "Error: Could not open file!" << endl;
exit(1);
}
int size = 0;
while(in_stream >> inputArray[size])
{

4. size++;
}
selectSort(inputArray , size);
unique(inputArray , uniqueArray , countArray , size);
printFileScreen(uniqueArray , countArray , size);
}
void inputOption()
{
int inputArray[50];
int countArray[50] = {0};
int uniqueArray[50] = {0};
int size;
cout << "How many numbers would you like to enter? ";
cin >> size;
cout << "Enter numbers:" << endl;
for(int i = 0;i < size;i++)
{
cin >> inputArray[i];
}
selectSort(inputArray , size);
unique(inputArray , uniqueArray , countArray , size);
printFileScreen(uniqueArray , countArray , size);
}
void printFileScreen(const int uniqueArray[], const int countArray[], const int size)
{
//cout << "jaja";
ofstream output_file;
output_file.open("lab3Exercise2.txt");
if(output_file.fail())
{
cout << "Error: Could not open file!" << endl;
exit(1);
}
output_file << "Nt" << "count ";
for(int i = 0;i < size;i++)
{

5. if(uniqueArray[i] != 0)
{
output_file << uniqueArray[i] << "t";
output_file << countArray[i] << endl;
}
}
cout << "Nt" << "count ";
for(int i = 0;i < size;i++)
{
if(uniqueArray[i] != 0)
{
cout << uniqueArray[i] << "t";
cout << countArray[i] << endl;
}
}
}
/*
output:
1)
Read file from Input file? (Y/N) y
What file would you like to obtain input from? inputfile.txt
N count
4 2
3 1
1 2
-3 1
lab3Exercise2.txt
N count
4 2
3 1
1 2
-3 1
2)
Read file from Input file? (Y/N) n

6. How many numbers would you like to enter? 10
Enter numbers:
-1
3
4
2
3
4
6
7
6
4
N count
7 1
6 2
4 3
3 2
2 1
-1 1
lab3Exercise2.txt
N count
7 1
6 2
4 3
3 2
2 1
-1 1
*/
Solution
#include
#include
#include

7. #include
#include
using namespace std;
//Used from
int index_of_largest(const int array[], int startIndex, const int size);
void selectSort(int a[], const int size);
void swap(int& i1, int& it2);
void fileOption();
void inputOption();
void unique(const int inputArray[], int uniqueArray[], int countArray[], const int size);
void printFileScreen(const int uniqueArray[], const int countArray[], const int size);
int main()
{
// int size;
char userInput[5];
//
cout << "Read file from Input file? (Y/N) ";
cin >> userInput;
if(toupper(userInput[0]) == 'Y')
{
fileOption();
}
else
{
inputOption();
}
return 0;
}
void selectSort(int array[], const int size)
{
int smallestIndex;
for(int i = 0;i < size - 1;i++)
{
smallestIndex = index_of_largest(array , i , size);
swap(array[i] , array[smallestIndex]);
}

8. }
void swap(int& i1, int& i2)
{
int temp;
temp = i1;
i1 = i2;
i2 = temp;
}
int index_of_largest(const int array[], int startIndex, const int size)
{
int min = array[startIndex] , index_of_min = startIndex;
for(int i = startIndex + 1;i < size;i++)
if(array[i] > min)
{
min = array[i];
index_of_min = i;
}
return index_of_min;
}
void unique(const int inputArray[], int uniqueArray[], int countArray[], const int size)
{
int number;
int j = 0;
int index;
for(int i = 0;i < size;i++)
{
int flag = 0;
number = inputArray[i];
//for each element in inputArray, check if it is there in uniqueArray
for (int k = 0; k < j; ++k)
{
if(number == uniqueArray[k])
{
flag = 1;
index = k;
}

9. }
if(flag == 0)
{
//if so, increment the countArray by 1
countArray[j]++;
// copy the element to uniqueArray
uniqueArray[j] = number;
j++;
}
else
countArray[index]++;
}
}
void fileOption()
{
int inputArray[50];
int countArray[50] = {0};
int uniqueArray[50]= {0};
ifstream in_stream;
char fileName[16];
cout << "What file would you like to obtain input from? ";
cin >> fileName;
in_stream.open(fileName);
if(in_stream.fail())
{
cout << "Error: Could not open file!" << endl;
exit(1);
}
int size = 0;
while(in_stream >> inputArray[size])
{
size++;
}
selectSort(inputArray , size);
unique(inputArray , uniqueArray , countArray , size);

10. printFileScreen(uniqueArray , countArray , size);
}
void inputOption()
{
int inputArray[50];
int countArray[50] = {0};
int uniqueArray[50] = {0};
int size;
cout << "How many numbers would you like to enter? ";
cin >> size;
cout << "Enter numbers:" << endl;
for(int i = 0;i < size;i++)
{
cin >> inputArray[i];
}
selectSort(inputArray , size);
unique(inputArray , uniqueArray , countArray , size);
printFileScreen(uniqueArray , countArray , size);
}
void printFileScreen(const int uniqueArray[], const int countArray[], const int size)
{
//cout << "jaja";
ofstream output_file;
output_file.open("lab3Exercise2.txt");
if(output_file.fail())
{
cout << "Error: Could not open file!" << endl;
exit(1);
}
output_file << "Nt" << "count ";
for(int i = 0;i < size;i++)
{
if(uniqueArray[i] != 0)
{
output_file << uniqueArray[i] << "t";
output_file << countArray[i] << endl;

11. }
}
cout << "Nt" << "count ";
for(int i = 0;i < size;i++)
{
if(uniqueArray[i] != 0)
{
cout << uniqueArray[i] << "t";
cout << countArray[i] << endl;
}
}
}
/*
output:
1)
Read file from Input file? (Y/N) y
What file would you like to obtain input from? inputfile.txt
N count
4 2
3 1
1 2
-3 1
lab3Exercise2.txt
N count
4 2
3 1
1 2
-3 1
2)
Read file from Input file? (Y/N) n
How many numbers would you like to enter? 10
Enter numbers:
-1
3

12. 4
2
3
4
6
7
6
4
N count
7 1
6 2
4 3
3 2
2 1
-1 1
lab3Exercise2.txt
N count
7 1
6 2
4 3
3 2
2 1
-1 1
*/