250pt: 题意:给定一块蜂巢状的N*M矩阵,每块六边形和周围6个六边形相邻,现在告诉你哪些是陆地,哪些是水,问水陆交界处的长度. 思路:直接模拟 code: #line 7 "Islands.cpp" #include <cstdlib> #include <cctype> #include <cstring> #include <cstdio> #include <cmath> #include <algorith…