I have a program for counting the number of times each word appears in a text file. but the program is built using c++ libraries that I am not allowed to use, therefore, i would like the program to be modified in a way that only these libraries are used:
<string>: for using strings
<algorithm> only for changing everything to lower case
<fstream> for files
<iostream>for input/output
the modified must keep using pointers and dynamic memory arrays
detailed comments for every line must be provided
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a program with a similar logic to this one must be implemented for checking for alphabetical numbers INSTEAD OF THE ALREADY MADE REGEX FUNCTIONS :
bool alpha(char ch){ // this function checks whether char is alphabet or not
if((ch>=’a’ && ch<=’z’) || (ch>=’A’ && ch<=’Z’)) //if yes then return true
return true;
else //if not then return false
return false;
}
CALLING FUNCTION:
for(int i=0;i<n;i++){
for(int j=0;j<s[i].size();j++){
if(!alpha(s[i][j])){ //check if char is alphabet or not
s[i][j] = ‘ ‘; // if not then replace with space
}
}
}
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also, for the size of the array (using dynamic memory), please use this example we did in class to modify the code to something similar: FOCUS ON HOW THEY USED SIZE AS A PARAMETER
#include <iostream>
#include <fstream>
using namespace std;
void loadData (int *HR, int *time, string filename, int *size);
void calculateMax (int *HR, int *time, int *maxHR, int *timeMax, int size);
#define SIZE 1440 // to save maximum size possible (24 hrs * 60 mins)
int main()
{
int time[SIZE], HR[SIZE];
int size;
int max_HR = 0, time_max = 0;
string filename;
cout << “Enter file name n”;
cin >> filename;
loadData(HR, time, filename, &size);
calculateMax (HR, time, &max_HR, &time_max, size);
cout << “Maximum heart rate is: ” << max_HR << endl;
cout << “Maximum heart rate occurred at time: ” << time_max;
return(0);
}
void loadData (int *HR, int *time, string filename, int *size)
{
ifstream inFile;
inFile.open (filename, ios::in);
if (inFile.fail())
{
cerr << “Error opening the file n”;
exit (-1);
}
inFile >> *size;
for (int i=0; i< *size; i++)
inFile >> *(time + i) >> *(HR + i);
inFile.close();
}
void calculateMax (int *HR, int *time, int *maxHR, int *timeMax, int size)
{
*maxHR = 0;
*timeMax = 0;
for (int i=0; i<size; i++)
{
if(*(HR+i) > *maxHR)
{
*maxHR = *(HR+i);
*timeMax = *(time+i);
}
}
}
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