This program illustrates the insert() member function for maps. Press Enter to continue ... First we put the first five pairs of capital letters and their ASCII codes into a map. In this case the capital letters are the keys and the ASCII codes are the values in the key/value pairs of the map. Press Enter to continue ... Here are the pairs in the map: A 65 B 66 C 67 D 68 E 69 Press Enter to continue ... Now we try to insert Z and its ASCII code 90 into the map. Press Enter to continue ... Success! The following pair is now in the map: Z 90 Press Enter to continue ... Next we try to insert D and its ASCII code 68 into the map. Press Enter to continue ... Rats! That insertion did not succeed. Why not? Because the following pair was already in the map: D 68 Press Enter to continue ... Now we try to insert pairs containing the capital letters T, H and D (again), along with their ASCII codes, in that order. Press Enter to continue ... Here are the pairs in the map after those three attempted insertions: A 65 B 66 C 67 D 68 E 69 H 72 T 84 Z 90 Press Enter to continue ... And the pairs pointed to by the returned iterators of these three calls to insert() are: T 84 H 72 D 68 Press Enter to continue ... Finally we create another map containing pairs with the capital letters from C to J and their corresponding ASCII codes. Then we try insert all of these into the previous map using the insert() function. Some of them will go in, and some won't, because they are already there. Press Enter to continue ... Here are the pairs in the map after these attempted insertions: A 65 B 66 C 67 D 68 E 69 F 70 G 71 H 72 I 73 J 74 T 84 Z 90 Press Enter to continue ...