http://poj.org/problem?id=2362POJ 2362 Sqare大意： 有n根木棒，长短不一，问能否使用所有的木棒摆出一个完整的正方形？分析：1.木棒的总长度整除42.DFS View Code #include < stdio.h > #include < string .h > const int N = 22 ; int sticks[N]; b

1  Preface DB Query Analyzer is presented by Master Gen feng, Ma from Chinese Mainland. It has English version named ‘DB Query Analyzer’ and Simplified Chinese version named ‘万能数据库查询分析器（DB 查询分析器）’.