uva-1594 Ducci Sequence

出處 ： https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=4469

解題策略

Floyd's cycle-finding algorithm

https://en.wikipedia.org/wiki/Cycle_detection

待完成或參考程式碼

暴力解