Read world population data file. store the values in multipl, computer science, Basic Computer Science

Assignment Help:
Read World Population Data File. Store the
values in multiple vectors. Sort them by most
populated region and output the results

ext file is here : https://www.csupomona.edu/~hmzaidi/Winter2012/CS128/WorldPopulation2010.txt

please
show me the code which is working perfectly.

please follow under this code


#include
#include
#include
#include
#include
#include
using namespace std;

int main()
{
// Define vectors to hold the data
vector countryNames;
vector countryCodes;
vector countryPopulations;

// Open the input file
string filename =
"C:\\Teaching\\CSUPomona\\CS128\\Winter2011\\WorldPopulation2010.txt";
ifstream in_file;
in_file.open(filename.c_str(), ios::in);

// Read the header
string header;
getline(in_file, header);

string line;
while (getline(in_file, line))
{
cout << line << endl;

string countryName;
string countryCode;
string countryPopulation;

// Parse the line to extract country name, code & population
for (int i = 0; i < line.length(); i++)
{
if (isdigit((unsigned char)line[i]))
{
countryName = line.substr(0, i);
countryCode = line.substr(i, 3);
countryPopulation = line.substr(i + 3, line.length() - i - 3);

countryNames.push_back(countryName);
countryCodes.push_back(atoi(countryCode.c_str()));
countryPopulations.push_back(atof(countryPopulation.c_str()));

break;
}
}
}

// Sort the vectors based on population
for (int i = 0; i < countryPopulations.size(); i++)
{
for (int j = i + 1; j < countryPopulations.size(); j++)
{
if (countryPopulations[j] < countryPopulations[i])
{
double tempP = countryPopulations[j];
countryPopulations[j] = countryPopulations[i];
countryPopulations[i] = tempP;

int tempC = countryCodes[j];
countryCodes[j] = countryCodes[i];
countryCodes[i] = tempC;

string tempN = countryNames[j];
countryNames[j] = countryNames[i];
countryNames[i] = tempN;
}
}
}

// Write the vectors to a file

string out_filename =
"C:\\Teaching\\CSUPomona\\CS128\\Winter2011\\WorldPopulation2010Sorted.txt";

ofstream out_file;
out_file.open(out_filename.c_str(), ios::out);

for (int i = 0; i < countryPopulations.size(); i++)
{
out_file << countryNames[i] << " "
<< countryCodes[i] << " " << countryPopulations[i] << endl;
}

char key;
cin >> key;

return 0;
}

Related Discussions:- Read world population data file. store the values in multipl, computer science

Editor and assembler, Editor and Assembler:   To write a program in...

Editor and Assembler:   To write a program in any of the programming languages requires an editor.  This is  a program that is used to create text files. While saving the p

Data transmission, DATA TRANSMISSION: When we talk on the telephone we...

DATA TRANSMISSION: When we talk on the telephone we generally transmit a message to someone else. The message is made up of words that we speak into the telephone instrument.

Control unit of the processor, Control Unit of the processor: The  Con...

Control Unit of the processor: The  Control Unit  of the processor is that unit which controls and coordinates the execution of instructions by the processor. It is responsibl

Database management, Suppose you are designing a database for an art museum...

Suppose you are designing a database for an art museum that owns a large volume of works of art. Each work of art is described by a unique item code, a title, a type, and a size. T

Simulated annealing-artificial intelligence, Simulated Annealing One wa...

Simulated Annealing One way to answer the problem of local maxima and related problems like ridges and plateaux in hill climbing is to permit the agent to go downhill to some e

Types of printers, Types of Printers 1. Impact printers The impact...

Types of Printers 1. Impact printers The impact printers produce the image through a mechanism of striking on the stationary. 2. Line Printer This type of printer

Microprocessors, what is the role of microprocessors in IT? how they are us...

what is the role of microprocessors in IT? how they are used in medical field? how they are used in our real lifes? how they are used in latest technology?

Probability, 2. Mike sells on the average 15 newspapers per week (Monday – ...

2. Mike sells on the average 15 newspapers per week (Monday – Friday). Find the probability that 2.1 In a given week he will sell all the newspapers [7] 2.2 In a given day he w

Data mining, Process of Data mining Data mining is an iterative process t...

Process of Data mining Data mining is an iterative process that typically involves the following phases: Problem definition A data mining project starts with the understanding o

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd