Get all the anagrams of a word. (Given a dictionary)

anagrams.cpp

#include <iostream>
#include <vector>
#include <fstream>
#include <string>
#include <sstream>
#include <map>
#include <set>
#include <algorithm>
using namespace std;

int main(){
    cin.sync_with_stdio(false); // read file in chunks
    string s, sorted;
    stringstream ss;
    // given dictionary
    ifstream f("C:/Users/tehee/Desktop/cplusplus/dictionary.text");
    map<string, set<string>> dict;

    // read the file
    while(getline(f, s)){
        ss.str("");
        ss << s;
        ss >> s;
        for(int i=0; i<s.size();++i)
            s[i] = tolower(s[i]);
        sorted = s;
        sort(sorted.begin(), sorted.end());
        dict[sorted].insert(s);
    }

    cout << "word: ";
    while(cin >> s){
        for(int i=0; i<s.size();++i)
            s[i] = tolower(s[i]);
        cout << s << " ";
        sort(s.begin(), s.end());
        cout << "key: " << s << endl;
        for( auto it = dict[s].begin(); it != dict[s].end(); ++it){
            cout << *it << " ";
        }
        cout <<endl;
        cout << "word: " ;
    }

    cout << "done" << endl;    
    cin.get();
    f.close();
    return 0;
}