0006132人目の素数さん
2018/09/20(木) 21:21:35.21ID:3I6YqVUEhttp://www.research.ibm.com/haifa/ponderthis/challenges/February2004.html
http://www.research.ibm.com/haifa/ponderthis/solutions/February2004.html
http://www.research.ibm.com/haifa/ponderthis/download/Feb2004_dima.pdf