Create a function named ReadCities , which takes a string input filename and str

ID: 3853759 • Letter: C

Question

Create a function named ReadCities, which takes a string input filename and string output filename as a parameters. This function returns the number of cities read from the file. If the input file cannot be opened, return -1 and do not print anything to the output file.

Read each line from the given filename, parse the data, process the data, and print the required information to the output file.

Each line of the file contains CITY, STATE, POPULATION, ELEVATION. Read the data and print the city with the largest population and the city with the highest elevation.

If given the data below:

c++

Your output file should contain:

Explanation / Answer

ReadCities.CPP:

______________

#include<iostream.h>

#include<fstream.h>

#include<conio.h>

#include<string.h>

int ReadCities(char[],char[]);

int main(){

clrscr();

char input[20],output[20];

cout<<"Enter input filename:";

cin>>input;

cout<<"Enter output filename:";

cin>>output;

int result = ReadCities(input,output);

if(result== -1)

cout<<"Failes to open "<<input<<" input file"<<endl;

else

cout<<"data stored in output file"<<endl;

getch();

return 0;

}

int ReadCities(char input[],char output[]){

ifstream infile;

infile.open(input);

if(infile.fail()){

long int largest_population = 0;

char city_large[30] ={''};

int high_elevation = 0;

char city_high[30] ={''};

ofstream outfile;

outfile.open(output);

char CITY[30],STATE[30];

long int POPULATION;

int ELEVATION;

for(int i=0;i<6;i++){

infile>>CITY;

infile>>STATE;

infile>>POPULATION;

infile>>ELEVATION;

if(POPULATION > largest_population){

largest_population = POPULATION;

strcpy(city_large,CITY);

}

if(ELEVATION > high_elevation){

high_elevation = ELEVATION;

strcpy(city_high,CITY);

}

outfile<<"Largest: "<<city_large<<"City, "<<largest_population<<endl;

outfile<<"Highest: "<<city_high<<", "<<high_elevation<<endl;

infile.close();

outfile.close();

}

else{

return -1;

}

return 0;

}

readcity.txt :

___________

Seattle Wash. 668342 429

Denver Colo. 663862 5883

Washington DC 658893 16

Indianapolis Ind. 848788 797

NewYork N.Y. 8491079 13

LosAngeles Calif. 3928864 126

Sample Input and Output:

______________________

Enter input filename:readcity.txt

Enter output filename:output.txt

data stored in output file

output.txt :

_________

Largest: New York City, 8491079

Highest: Denver, 5883

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Create a function named ReadCities , which takes a string input filename and str

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