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copied!<p>That data structure right there should work just fine. What you should do is override the less than operator, then you could just insert them all in a map and they would be sorted. <a href="http://www.cplusplus.com/reference/stl/map/operators/" rel="nofollow">Here is more info on the comparison operators for a map</a></p> <p>Update: upon farther reflection, I would use a set, and not a map, because there is no need for a value. But here is proof it still works<br> <br>Proof this works: </p> <pre><code>#include<string> #include<map> #include<stdio.h> #include <sstream> using namespace std; struct entry { int m_id_number; string m_name1; int m_date; string m_name2; entry( int id_number, string name1, int date, string name2) : m_id_number(id_number), m_name1(name1), m_date(date), m_name2(name2) { } // Add this as a member function to `entry`. bool operator<(entry const &other) const { if (m_name1 < other.m_name1) return true; if (m_name2 < other.m_name2) return true; if (m_date < other.m_date) return true; return false; } string toString() const { string returnValue; stringstream out; string dateAsString; out << m_date; dateAsString = out.str(); returnValue = m_name1 + " " + m_name2 + " " + dateAsString; return returnValue; } }; int main(int argc, char *argv[]) { string names1[] = {"Dave", "John", "Mark", "Chris", "Todd"}; string names2[] = {"A", "B", "C", "D", "E", "F", "G"}; std::map<entry, int> mymap; for(int x = 0; x < 100; ++x) { mymap.insert(pair<entry, int>(entry(0, names1[x%5], x, names2[x%7]), 0)); } std::map<entry, int>::iterator it = mymap.begin(); for(; it != mymap.end() ;++it) { printf("%s\n ", it->first.toString().c_str()); } return 0; } </code></pre>

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