=====比赛信息=====

  * **日期：2020.8.6**

  * **比赛地址：** [[https://codeforces.com/group/azDPdoF24f/contest/290092/standings/groupmates/true|传送门]]

  * **做题情况：lxh(A)，tyx(C)，gyp(G)**

=====题解=====

====A - ====

===solved by ===

===题意===



===数据范围===

===题解===

====B - ====

===solved by ===

===题意===

===数据范围===

===题解===

====C - Crazy Dreamoon====

===solved by tyx===

===题意===

给出$N$条线段，问有多少个格子被至少一条线段穿过了

===数据范围===

$N \le 2000$，所有的坐标在$[0,2000]$

===题解===

直接枚举每一条线段横坐标移动1的时候纵坐标覆盖了哪些格子，最后统计答案。<del>不过由于没注意线段输入的顺序WA了6次</del>

====D - ====

===solved by ===

===题意===

===数据范围===

===题解===

====E - ====

===solved by ===

===题意===

===数据范围===

===题解===

====F - ====

===solved by ===

===题意===

===数据范围===

===题解===

====G - ====

===solved by ===

===题意===

===数据范围===

===题解===

====H - ====

===solved by ===

===题意===

===数据范围===

===题解===
====I - ====

===solved by ===

===题意===

===数据范围===

===题解===

====J - ====

===solved by ===

===题意===

===数据范围===

===题解===

====K - ====

===solved by ===

===题意===

===数据范围===

===题解===

=====Replay=====

第一小时：看完题后gyp开始想J，lxh开始想A，tyx开始想C并发现C比较简单，写完后却WA

第二小时：tyx的C一直WA，gyp开始帮tyx找精度问题，tyx开始想I，gyp发现了tyx的C题的问题并通过

第三小时：CF炸了导致tyx不知道I是否正确，lxh写出A上交，tyx开始想E

第四小时：CF的评测恢复，tyx发现I题WA了以后重新开始想I，lxh之前交的A通过，gyp写出了G但是TLE

第五小时：gyp想出了G的问题并通过，tyx并没能写出I

=====总结=====

  * 写题的时候要尽可能注意数据可能出现的形式