Can someone convert this program to parallel programing using open mp

Parallelize Implement one round of cryptography LIGHT including encryption and decryption and test it for a string of 32 bits for the multicore computer using OpenMP and test it. Compare the running time for 1, 2, 4 cores, respectively.

#include "pch.h"

#include

#include

#include

#include

using namespace std;

//DECLARING DYNAMIC CHARACTER ARRAYS FOR encyrptionKey.txt

char *characterArray;

char *codeArray;

//MAIN METHOD

int main() {

int number;

string getInput;

//GET THE NUMBER OFLINES IN THE encyptionKey.txt

number = numberOfLines("encyptionKey.txt");

//ALLOCATE SPACE FOR THE DYNAMIC CHARACTER ARRAY

characterArray = new char[number];

codeArray = new char[number];

ifstream readFromFile("encryptionKey.txt");

int k1 = 0;

if (!readFromFile.fail()) {

cout << "Copying key file: ";

//STORE CHARACTER AND CODEIN THE ARRAY

while (readFromFile >> characterArray[k1] >> codeArray[k1]) {

cout << endl << characterArray[k1] << "-" << codeArray[k1];

k1++;

}

}

else {

cout << "Sorry! encryptionKey reading error ";

}

//CLOSE THE FILE

readFromFile.close();

//GET THE CHOICE FROM THE USER

cout << "Please enter 'en' for encyption and 'de' for decryption" << endl;

cin >> getInput;

//ENCRYPTION

if (getInput == "en") {

cout << "Files encryptionKey.txt and text.txt are being processed..." << endl;

encrypt("text.txt");

cout << "Please open the output file textEncrypted.txt" << endl;

}

//DECRYPTION

else if (getInput == "de") {

cout << "Files encryptionKey.txt and textEncrypted.txt are being processed..." << endl;

decrypt("textEncrypted.txt");

cout << "Please open the output file textDecrypted.txt" << endl;

}

system("pause");

return 0;

}//END MAIN

//FUNCTION FIND THE NUMBER OF LINES IN THE GIVEN FILE

int numberOfLines(string fileName) {

string line;

int number = 0;

//OPEN THE FILE FOR READING

ifstream readFromFile(fileName);

//UNTIL THERE IS A LINE IN THE FILE READ THE LINE

while (getline(readFromFile, line)) {

//INCREASE THE NUMBER BY 1

number++;

}

//CLOSE THE FILE

readFromFile.close();

//RETURN THE NUMBER

return number;

}

//PERFORMS THE ENCRYPTION OF THE GIVEN FILE

void encrypt(string fileName) {

//DYNAMIC ARRAY TO HOLD THE FILE LINES

string *line;

//GET THE NUMBER OF LINES IN THE FILE

int number = numberOfLines(fileName);

//ALLOCATE SPACE FOR THE DYNAMIC ARRAY

line = new string[number];

string tempLine;

int k = 0;

//OPEN THE text.txt FOR READING

ifstream readFromFile(fileName);

//OPEN THE textEncryption.txtFORWRITING THE ENCRYPTED LINE

ofstream writeToFile;

writeToFile.open("textEncrypted.txt");

if (writeToFile.fail()) {

cout << " error to write ";

system("pause");

exit(1);

}

//Find the number of characters in characerArray

int len = 0;

while (characterArray[len] != NULL) {

len++;

}

//UNTIL THERE IS A LINE IN THE FILE

while (getline(readFromFile, tempLine)) {

//STORE THE READ LINE IN STRING ARRAY

line[k] = tempLine;

//DO THE ENCRYPTION

//FOR EACH CHARACTER IN THE LINE IF CODE IS AVAILBLE FOR THE //CORRESPONDING CHRACTER THEN REPLACE THE CHRACTER WITH THE CODE

for (int k1 = 0; k1 < tempLine.length(); k1++) {

for (int k2 = 0; k2 < len; k2++) {

if (line[k][k1] == characterArray[k2]) {

line[k][k1] = codeArray[k2];

}

}

}

//WRITE THE ENCRYPTED LINE

writeToFile << line[k] << endl;

k++;

}

//CLOSE THE FILES

writeToFile.close();

readFromFile.close();

}

//PPERFORMS THE DECRYPTION

void decrypt(string fileName) {

//DYNAMIC ARRAY TO HOLD THE FILE LINES

string *line;

//GET THE NUMBER OF LINES IN THE FILE

int number = numberOfLines(fileName);

//ALLOCATE SPACE FOR THE DYNAMIC ARRAY

line = new string[number];

string tempLine;

int k = 0;

//OPEN THE textEncrypted.txt FOR READING

ifstream readFromFile(fileName);

//OPEN THE textDecryption.txtFOR WRITING THE DECRYPTED LINE

ofstream writeToFile("textDecrypted.txt");

//Find the number of characters in characerArray

int len = 0;

while (characterArray[len] != NULL) {

len++;

}

//UNTIL THERE IS A LINE IN THE FILE

while (getline(readFromFile, tempLine)) {

//STORE THE READ LINE IN STRING ARRAY

line[k] = tempLine;

//DO THE DECRYPTION

//FOR EACH CODE IN THE LINE IF CHRACTER IS AVAILBLE FOR THE //CORRESPONDING CODE THEN REPLACE THE CODE WITH THE CHARACTER

for (int k1 = 0; k1 < tempLine.length(); k1++) {

for (int k2 = 0; k2 < len; k2++) {

if (line[k][k1] == codeArray[k2])

line[k][k1] = characterArray[k2];

}

}

//WRITE TOFILE

writeToFile << line[k] << endl;

k++;

}

//CLOSE THE FILES

writeToFile.close();

readFromFile.close();

}