News

最新情报

2010.08.22
ZOJ Monthly, August 2010
ゆっくりACしていってね!!! (Take it easy. ACcepted for Fun.)
2010.08.14
Andrew Stankevich’s Contest, Warmup
Andrew Stankevich’s Contest #11. Enjoy it!

zoj-news

2010.08.22
月赛结束 とある山寨の解题报告
2010.08.22
比赛进行中
2010.08.17
加密打包文件可以下载了
2010.08.07
ZOJ News 更新
Practice Session 解题报告放出
2010.07.28
HomePage Silent Launch
2010.07.10
ZOJ Monthly, August 2010 时间决定





©2010 Zhejiang University ACM/ICPC Team
©2010 http://watashi.ws/acm_x_touhou/

18 Responses to “News”
  1. ba says:

    erci yuan’s world I can’t understand

  2. ba says:

    erci yuan so world I can’t understand

  3. beyondxgb says:

    shi神,请教一个问题,对于求有源汇上下界最小流时可以二分源汇的上界,但求有源汇上下界最大流时为什么要二分下界,而不可以跟求最小流一样二分上界呢?这个很疑惑,比如二分上界一个答案,如果存在可行流,我就继续增大,最后求得不是可行的最大流吗?为什么是二分下界呢?求大神指教,谢谢了!

    • watashi says:

      上界只是一个capability的限制,不一定要达到啊,实际的flow<=capability
      所以可行流只表示有可行解在[min_bound, max_bound]之间啊,不表示就有max_bound的可行解,然后自己用二分的思想理解吧

      求上下界最大/小流不一定需要用二分的算法,可以先求一个 feasible flow,在去掉超级源和超级汇后求/反向求一次 max flow

  4. jing says:

    想请教大神acm 跪求大神qq

  5. 幻の上帝 says:

    http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemCode=3227
    http://acm.zju.edu.cn/onlinejudge/showImage.do?name=perfect_cherry_blossom_0.jpg
    The screenshot seems like to be a copyright violation, according to Touhou Wiki …

    QUOTED:

    http://touhou.wikia.com/wiki/Touhou_Wiki:Copyrights

    3. Don’t make image content edits that are indistinguishable from the
    original images.
    This includes things like changing the spell card names, recoloring the
    images, or add extra bullets that weren’t originally there.
    * However, this is okay if it’s done as a joke and it’s clearly stated
    that it’s a joke.

  6. DreamUp says:

    ZOJ3376解题报告中公布的代码 第86行应该是dy < h 吧
    对定义的floor函数表示不解,望大牛指点迷津……

  7. Ramboo says:

    解题报告还没有么……F5都快坏了……

  8. Ramboo says:

    inaba里斜着能不能跳啊题目没说啊……

  9. cgy4ever says:

    ACM with Touhou theme?
    It sounds exciting!

  10.  
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