IMPORTANT: Please do not post solutions, hints, or other spoilers until at least 60 hours after the date of this message. Thanks. IMPORTANTE: Por favor, no enviéis soluciones, pistas, o cualquier otra cosa que pueda echar a perder la resolución del problema hasta que hayan pasado por lo menos 60 horas desde el envío de este mensaje. Gracias. IMPORTANT: S'il vous plaît, attendez au minimum 60 heures après la date de ce message avant de poster solutions, indices ou autres révélations. Merci. WICHTIG: Bitte schicken Sie keine Lösungen, Tipps oder Hinweise für diese Aufgabe vor Ablauf von 60 Stunden nach dem Datum dieser Mail. Danke. BELANGRIJK: Stuur aub geen oplossingen, hints of andere tips in de eerste 60 uur na het verzendingstijdstip van dit bericht. Waarvoor dank. VNIMANIE: Pozhalujsta ne shlite reshenija, nameki na reshenija, i voobshe lyubye podskazki v techenie po krajnej mere 60 chasov ot daty etogo soobshenija. Spasibo. Qing3 Zhu4Yi4: Qing3 Ning2 Deng3Dao4 Jie1Dao4 Ben3 Xin4Xi2 Zhi1Hou4 60 Xiao3Shi2, Zai4 Fa1Biao3 Jie3Da2, Ti2Shi4, Huo4 Qi2Ta1 Hui4 Xie4Lou4 Da2An4 De5 Jian4Yi4. Xie4Xie4. ---------------------------------------------------------------- It's late, and as you know, I was up late last night. So I looked through my question file for a question that would be very quick to ask. Here it is: Implement the 'patch' program. Typical versions of 'patch' have a zillion options and features. It's up to you how much of 'patch' to implement. As you probably know, there is a program called 'diff' that generates a description of the differences between file A and file B. 'patch' is the reverse. It transforms file A into file B, using the description that was previously generated by 'diff'. Some people say that it was 'patch' that made source code sharing and distribution possible. If you had a large software package, and you wanted to release a new version, people did not have to download the whole thing. Instead, you could prepare a 'patch file' with the 'diff' output describing the changes between the old and the new versions of all the files. People would then download just the patch file, which was typically much smaller than the entire source code, and use 'patch' to apply the changes to their own, previously downloaded copy of the code. 'patch' was invented by some guy named Larry Wall. I wonder what ever became of him? ---------------------------------------------------------------- Incidentally, if you don't like this, you should seriously consider the 'regular' quiz this week. It probably should have been an 'expert' quiz---it can be done using only Llama book features, but just barely.