I am trying to read a list of words from a file example.txt and sort the list an

ID: 3753933 • Letter: I

Question

I am trying to read a list of words from a file example.txt and sort the list and rewrite the sorted list to the file. So far I am able to read and sort the list but am unable to rewrite the sorted list to the file. Also the last entry is read twice how do I avoid this? C++

1 #include 2 #include 3 #include 4 #include 5 #include 7 using namespace std; 9 int main() I/create fstream instance and open file "example.txt" 2 fstream sf 3 sf.open("example.txt", fstream::out 2 fstream::in); 5 if(sf.is_open )) cout

Explanation / Answer

Here is the completed code for this problem. Comments are included, go through it, learn how things work and let me know if you have any doubts. Thanks

//Code

#include<iostream>

#include<algorithm>

#include<fstream>

#include<vector>

#include<string>

using namespace std;

int main(){

//opening file in read mode

ifstream inFile;

inFile.open("example.txt");

vector<string> hold;

string word;

//the correct way of extracting words from the file, without reading last

//entry twice

while(inFile>>word){

//word has been read correctly, so pushing to the vector

hold.push_back(word);

}

//closing input file

inFile.close();

//sorting the words

sort(hold.begin(),hold.end());

//opening file in write mode

ofstream outFile;

outFile.open("example.txt");

//printing sorted words into the console, also writing to the output file

for(int i=0;i<hold.size();i++){

cout<<hold[i]<<endl;

outFile<<hold[i]<<endl;

}

//closing the output file

outFile.close();

}

//example.txt before running the program

wise

harvest

survivor

railcar

meaning

agree

straighten

reliable

kick

morsel

lounge

suffering

direction

protest

short circuit

knife

opposite

arrest

big

abolish

/*OUTPUT*/