In At Play With J Edn 1, there were 4 questions left as exercises for the reader. In Edn 2 we want to provide the answers in an Appendix.
Just so I don't get them wrong, could the forum please suggest what the answers should be? You may have to refer to the Wiki page. I'm putting each question in a separate thread. +++++ in: Ch 38 The Google Test http://www.jsoftware.com/jwiki/Doc/Articles/Play211 [see end-of-page] Problem 2: Finding the sixth in a series You are given five 10-digit numbers from the digits of pi, and must find the sixth. Here are the numbers: 4338327950 2795028841 6939937510 3993751058 2110555964 Here they are, embedded in pi: 7 30 $ w 31415926535897932384626<4338327 95028841>971<693993751058>2097494 459230781640628620899862803482 534211706798214808651328230664 709384460955058223172535940812 84811174502841027019385<2110555 964>462294895493038196442881097 The first and second overlap, as do the third and fourth. I'll give two hints, the second vacuous: Hint 1: Primarily, the sixth number has three doublets and overlaps the fifth. Hint 2: Alternately, something for nothing. +++++ Ian Clark Subeditor, APWJ Edn 2 ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
