help with removing duplicate words C++

[chokra83]

I am working on an assignment, it is to read a file, sort it and remove duplicate words and display. I got all the parts expect the removing duplicating part. Any points would be highly appreicated

#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <fstream>

using namespace std;

int main()
{
	vector<string> words;
	string inputFileName, reply;
	ifstream inputFile;
	
	cout << "Input file name: ";
	getline(cin, inputFileName);
	
	inputFile.open(inputFileName.c_str());

	//If the file doesn't open, then display error and then ask to press enter to close
	if (inputFile.is_open())
	{
		while(!inputFile.eof())
		{
			string word;
			while(inputFile >> word)
			{
				words.push_back(word);
			}
			sort(words.begin(), words.end());
			
			for(size_t i=0; i<words.size(); i++)  
			{
				cout << words[i] << endl;
			}
		}
	}
	else
	{
		cout << "Unable to open input file." << endl;
		cout << "Press enter to continue...";
		getline(cin, reply);
		exit(1);
	}
	inputFile.close();
	return 0;
}

[Stalker]

Well the way you have structured your program you can use the following method. You can define a separate function or you can code it in the main.

for(size_t i = 0; i < words.size(); i++)
{
  for(size_t j = i + 1; j < words.size(); j++)
  {
     if(words.at(i) == words.at(j))
     {
        words.at(j) = words.at(words.size() - 1);
        words.pop_back();
        j--;
     }
  }
}

And I suggest that you sort the vector after the duplicate deletion is performed.

[chokra83]

Thank you very much that helped and the solution is surprisingly easy, but I was over thinking it

[Stalker]

No problem

[priya331]

Thanks a lot for this !!