Diffe

What is the problem about bears and unique names in Codeforces 791C?

本文共计413个文字，预计阅读时间需要2分钟。题目链接：http:codeforces.comcontest791problemC题目大意：给你n和k，表示有n个士兵，下面有n-k+1个字符串，表示对i到i+k-1的士兵的判断，如果i到i+