@@ -0,0 +1,71 @@
+#include<iostream>
+#include<iterator>
+#include<map>
+using namespace std;
+int main ()
+{
+map<int, int> gquiz1;
+gquiz1.insert(pair<int, int>(1, 40));
+gquiz1.insert(pair<int, int>(2, 30));
+gquiz1.insert(pair<int, int>(3, 60));
+gquiz1.insert(pair<int, int>(4, 20));
+gquiz1.insert(pair<int, int>(5, 50));
+gquiz1.insert(pair<int, int>(6, 50));
+gquiz1.insert(pair<int, int>(7, 10));
+
+map<int, int>::iterator itr;
+cout << "\nThe map gquiz1 is : \n";
+cout << "\tKEY\tELEMENT\n";
+for (itr = gquiz1.begin(); itr != gquiz1.end(); ++itr) {
+cout << '\t' << itr->first
+<< '\t' << itr->second << '\n';
+}
+cout << endl;
+// assigning the elements from gquiz1 to gquiz2
+map<int, int> gquiz2(gquiz1.begin(), gquiz1.end());
+
+// print all elements of the map gquiz2
+cout << "\nThe map gquiz2 after"
+<< " assign from gquiz1 is : \n";
+cout << "\tKEY\tELEMENT\n";
+for (itr = gquiz2.begin(); itr != gquiz2.end(); ++itr) {
+cout << '\t' << itr->first
+<< '\t' << itr->second << '\n';
+}
+cout << endl;
+
+cout << "\ngquiz2 after removal of"
+" elements less than key=3 : \n";
+cout << "\tKEY\tELEMENT\n";
+gquiz2.erase(gquiz2.begin(), gquiz2.find(3));
+for (itr = gquiz2.begin(); itr != gquiz2.end(); ++itr) {
+cout << '\t' << itr->first
+<< '\t' << itr->second << '\n';
+}
+int num;
+num = gquiz2.erase(4);
+cout << "\ngquiz2.erase(4) : ";
+cout << num << " removed \n";
+cout << "\tKEY\tELEMENT\n";
+for (itr = gquiz2.begin(); itr != gquiz2.end(); ++itr) {
+cout << '\t' << itr->first
+<< '\t' << itr->second << '\n';
+}
+
+cout << endl;
+
+cout << "gquiz1.lower_bound(5) : "
+<< "\tKEY = ";
+cout << gquiz1.lower_bound(5)->first << '\t';
+cout << "\tELEMENT = "
+<< gquiz1.lower_bound(5)->second << endl;
+cout << "gquiz1.upper_bound(5) : "
+<< "\tKEY = ";
+cout << gquiz1.upper_bound(5)->first << '\t';
+cout << "\tELEMENT = "
+<< gquiz1.upper_bound(5)->second << endl;
+
+
+return 0;
+}
+