1. There are several phone numbers (only US phone numbers). All the US phone numbers are basically in the format xxx xxx xxxx which is area code and 7 digit phone number. The number can have spaces between area code, first three digits of phone number or may be without spaces
2. The catch is that each phone number is re-arranged in a way that first three digits of phone number comes first then area code and then the last four digits.
Example:
Phone number is 425 123 4567 or 4251234567. This is the correct representation. But its stored as 123 425 4567 or 1234254567. This needs to be fixed and represented as the correct format. C++ code to cleanse the data. This is the quick solution that I got to. There may be several ways to achieve this
// FirstProject.cpp : Defines the entry
point for the console application.
// This program assumes that the phone
numbers are entered in the wrong order instead of area code and phone number
its xxxareacodeandlastfournumbers
//Some times people may enter
space/spaces between area code and first three numbers of phone.
//This program gets all the phone numbers
into a vector, removes any spaces between numbers in the string and re-arranges
values in the right order
#include "stdafx.h"
#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
using namespace std;
//function prototype
void cleansePhoneNumbers(vector<string>&inputVector);
int main()
{
vector<string> phoneNumbers;
string phone = "";
while (true) //start of infinite loop to
add data to vector
{
cout
<< "Enter a
phone number (press enter to exit):";
getline(cin,
phone); //get the data into
phone string including spaces
if (phone == "") //if just Enter key is
pressed at the prompt
{
break; //loop breaks
}
phoneNumbers.push_back(phone);
//append the current
value in phone to the vector
}
cleansePhoneNumbers(phoneNumbers);
//function call to
cleanse phone numbers
for (string st : phoneNumbers) //for each string at the
index of the vector
{
cout
<< "Cleansed
Phone Numbers: "
<< st << endl; //print the value at that index
}
return 0;
}
//function definition
void cleansePhoneNumbers(vector<string>&inputVector)
{
string *temp; //pointer to store address of
each index of the vector
int size;
string val;
size
= inputVector.size(); //get the size of vector and
assign it to size. Length of the vector
for (int i = 0; i < size; i++) //traverse through each index
{
temp
= &inputVector[i]; //get the address of index
into temp pointer. This will be used to update the value in the vector directly
val
= inputVector[i]; //get the value at that index
while (val.find(" ") != val.npos) //loop to remove any spaces
in the string at a given idex
{
val.replace(val.find(" "), 1, "");
}
val
= val.substr(3, 3) + val.substr(0, 3) + val.substr(6, 4); //change the value
*temp
= val; //update value in
the temp pointer so that actual data in the vector at that index changes
}
}
