Question

Until 2009, the US Postal Service printed a bar code on every envelope that represented the zip code using a format called POSTNET. We will be doing the same with only 5-digit zip codes. POSTNET consists of long and short lines, as seen below: The POSTNET representation of 67260, WSU's zip code In the program, the zipcode will be represented by an integer and the corresponding barcode will be represented by strings of digits. The digit 1 will represent the long bar, and the digit 0 will represent the short bar The first and last digits of a POSTNET code are always 1. Stripping these leaves 25 digits, which can be split into groups of 5. The above example translates into the following string and groups of ive: 101100100010010101100110001 01100 10001 00101 01100 11000 Now, we look at each group of 5. There will always be two 1's. Depending on its location within the group, each 1 represents a number. When the numbers that the 1's represent are added together you get that digit of the zip code. The table below translates the first group, which represents the number 6 POSTNET Digits 01 100 Value 7 42 1 0

1

Answer 1

// output is attached
// plz comment if u need further clarification

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <fstream>
#include <sstream>
#include <algorithm>
#include <string>
using namespace std;

struct ZipCode{
    int romanZipCode;
    string postnetCode;
};

// declarations
void processZip(int prompt);
void writeToFile(const ZipCode zip);
void printPOSTNET(const ZipCode zip);
void printRomanZip(const ZipCode zip);
int postnetToRoman(const string p);
string romanToPOSTNET(const int r);
ZipCode fillZipCode(const string zip);

// given one field in zip, either zipcode or
// postnet, fillZipCode calculates the other
ZipCode fillZipCode(ZipCode zip){
    if(zip.postnetCode == "") {
        zip.postnetCode = romanToPOSTNET(zip.romanZipCode);
    } else {
        zip.romanZipCode = postnetToRoman(zip.postnetCode);
    }
    return zip;
}

// given a zipcode this function returns its
// POSTNET code
string get5BitBinary(int x) {
    string bin[] = {"11000","00011","00101", "00110",
                    "01001","01010","01100", "10001",
                    "10010","10100"};
    string str = "1";
    while(x > 0) {
        int bit = x%10;
        str = bin[bit] + str;
        x/=10;
    }

    // when the zipcode has trailing 0's
    // Ex : 02363
    if(str.length() < 25) {
        str = bin[0] + str;
    }
    str = "1"+str;
    return str;
}

string romanToPOSTNET(const int r){
    string postnet;
    postnet = postnet + get5BitBinary(r);
    return postnet;
}

// given a string of 5 bits this function returns its integer value
int getInt(string str) {
        string bin[] = {"11000","00011","00101", "00110",
                            "01001","01010","01100", "10001",
                    "10010","10100"};
       for( int i = 0; i < 10;i++) {
            if(str.compare(bin[i]) == 0) {
                    return i;
            }
       }
}

// converts postnet to zipcode
// by converting 5 bits at a time to decimal
int postnetToRoman(const string p){
    int i = 1;
    int r = 0;
    while(p.length()-i >= 5) {
        r = r * 10 + getInt(p.substr(i,5));
        i+=5;
    }
    return r;
}

// prints postnet in graphical representation
void printGraphicalPOSTNET(string postnet) {
    int len = postnet.length();
    int i = 0;
    for( i = 0; i < len;i++) {
        if(postnet[i] == '1') {
            cout<<"|";
        } else {
            cout<<" ";
        }
    }

    cout<<"\n";
    i++;
    for( ; i < (2*len)+1;i++) {
          cout<<"|";
    }
    cout <<endl;

}

// prints zipcode
void printRomanZip(const ZipCode zip){
      cout<< "\nYour Zip code is "<<zip.romanZipCode << endl;
}

// prints post net in graphical representation
void printPOSTNET(const ZipCode zip){
    cout<< ", and the bat code looks like this:\n";
    printGraphicalPOSTNET(zip.postnetCode);
}

// if user selects option 1 : zip to postnet then
// this will convert zip to postnet and display it on the screen
// and writes it to the file with zip as its name
// if user selects option 2 : postnet to zip
// then it converts postnet to zip and then
// displays it on the screen and writes it to the file
void processZip(int prompt) {
    struct ZipCode code;
    if(prompt == 1) {
        cout<< "Please enter Zip :";
        cin >> code.romanZipCode;
        code = fillZipCode(code);
        printRomanZip(code);
        printPOSTNET(code);
    } else {
        cout<< "Please enter POSTNET :";
        cin >> code.postnetCode;
        code = fillZipCode(code);
        printRomanZip(code);
    }
    writeToFile(code);
}

void writeToFile(const ZipCode zip){

    string filename ="";// to_string(zip.romanZipCode)+".txt";
    std::stringstream ss;
    ss << zip.romanZipCode;
    filename.append(ss.str());
    filename += ".txt";
    ofstream output(filename.c_str(), ios::out);

    output << "Your Zip code is "<<zip.romanZipCode;
    output << ", and the bat code looks like this:\n";
    int len = zip.postnetCode.length();
    int i = 0;
    for( i = 0; i < len;i++) {
        if(zip.postnetCode[i] == '1') {
            output<<"|";
        } else {
            output<<" ";
        }
    }
    output<<"\n";
    i++;
    for( ; i < (2*len)+2;i++) {
          output<<"|";
    }
    output << endl;
    output.close();

    cout<< "\nWritten to file\n";
}

int main() {
    int mainMenu;
    cout<< " This program is able to convert zip codes to a POSTNET format "
      << "and vice versa\n"
      << "\t 1. Convert zip code to POSTNET\n"
      << "\t 2. Convert POSTNET to zip code\n"
      << "\t 3. Quit\n";
    do{
        cout << "Please make your selection: ";
        cin>> mainMenu;

        switch(mainMenu) {
            case 1:
            case 2:
                processZip(mainMenu);
                break;
            default:
                if(mainMenu != 3)
                    cout<< "Invalid choice...\n";
                else
                    cout<<"\n";
        }
    }while(mainMenu != 3);

return 0;
}
OUTPUT :

This program is able to convert zip codes to a POSTNET format and vice versa 1. Convert zip code to POSTNET 2. Convert POSTNET to zip code 3. Quit Please make your selection: 1 Please enter Zip:65478 Your Zip code is 65478 , and the bat code looks like this: Written to file lease make your selection: 2 Please enter POSTNET :101100100010010101100110001 Your Zip code is 67260 Written to file Please make your selection: 3 Process returned 0 (Ox0) execution time 37.542 s Press any key to continue