星琳之梦的博客

题目位置：https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=465  Prime Ring Problem A ring is composed of n (even number) circl

题目位置：https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=666Write a program that finds and displays all pairs of 5-digit numbers that between them use t