Set is not removing the duplicates [closed] - c++

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I am having trouble putting a file of words into a set. I can read the file and the words go into the set but the set doesn't discard the repeated words. Here is the snippet of code that I believe is causing the problem.
using namespace std;
while(readText >> line){
set<string> wordSet;
wordSet.insert(line);
for (std::set<std::string>::iterator i = wordSet.begin(); i != wordSet.end(); i++)
{
cout << *i << " ";
}
}
the sample file is this
1
2
2
3
4
5
5
and the output is exactly the same

Answer 1

As stated in comments, you are not using the std::set correctly. You need to move it, and the for loop, outside of your while loop:
using namespace std;
set<string> wordSet;
while(readText >> line) {
wordSet.insert(line);
}
for (set<string>::iterator i = wordSet.begin(); i != wordSet.end(); i++) {
cout << *i << " ";
}