113 - Power of Cryptography Time limit: 3.000 seconds http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=99&page=show_problem&problem=49 http://poj.org/problem?id=2109
LCA博客 https://blog.csdn.net/sdut_jk17_zhangming/article/details/84592285 Few people know, but a long time ago a developed state existed on Mars. It consisted of n cities, numbered by integers