https://111qqz.com/en/tags/%E7%BB%86%E8%8A%82%E9%A2%98/Recent content in 细节题 on 111qqz's blogHugo -- gohugo.ioen© 2015-2026 111qqzTue, 29 Dec 2015 09:29:57 +0000https://111qqz.com/en/post/acm-icpc/2015/2015-12-29-codeforces-14-c-four-segments/Tue, 29 Dec 2015 09:29:57 +0000https://111qqz.com/en/post/acm-icpc/2015/2015-12-29-codeforces-14-c-four-segments/<p><a href="http://codeforces.com/problemset/problem/14/C" target="_blank" rel="noreferrer">http://codeforces.com/problemset/problem/14/C</a> 题意：给出四条边的坐标，问能否形成一个边与坐标轴平行的矩形。边可能退化成点。 思路：首先第一步，检查有没有边退化成点以及是否有不平行的边。</p>