Chris Angelico於 2018年12月10日星期一 UTC+8下午7時09分01秒寫道： > On Mon, Dec 10, 2018 at 9:46 PM <jf...@ms4.hinet.net> wrote: > > > > Chris Angelico於 2018年12月10日星期一 UTC+8下午6時17分14秒寫道： > > > On Mon, Dec 10, 2018 at 9:11 PM Antoon Pardon <antoon.par...@vub.be> > > > wrote: > > > > > > > > On 10/12/18 11:03, Chris Angelico wrote: > > > > > Considering that, in a problem of that description, neither S nor M > > > > > may represent zero, I don't think there's a problem here. > > > > > > > > Not all such problems have that condition. > > > > > > They should. Every published set of problems that I've ever solved by > > > hand has. I went searching online for some, and found this page: > > > > > > http://puzzlepicnic.com/genre?alphametic > > > > > > which clearly states that exact restriction. The implication is that > > > you're solving a puzzle in arithmetic (usually addition or long > > > multiplication), and it is *exactly* as you would have written it with > > > digits, save that the digits have been replaced with letters (and > > > carries have been omitted, since that'd make it too easy). You > > > wouldn't write a leading zero on a number in standard grade-school > > > arithmetic, so you also won't use a leading zero in anything here. > > > > > > ChrisA > > > > All I know is that when I write a number 03, there is no any human being > > will say it's an illegal number. > > > > Yet most human beings will agree that you don't write out an > arithmetic problem as: > > 0 1 9 8 > + 7 1 3 > =========
Python3 gives me the error message is because of the number 0198, not because of 0198 + 713. > > I prefer to buy the reason that this restriction was bring in is because of > > the puzzle's author know it will cause trouble without this, not because of > > our written habit. > > > > No, it's a restriction because it is unsatisfactory without it. The > point of a puzzle is to be fun, and fun means having restrictions that > fit what people expect. The fun is from solving the puzzle, not from its restriction, unless the puzzle has no fun without this restriction. --Jach > ChrisA -- https://mail.python.org/mailman/listinfo/python-list
