Detail of message

Online Judge

Problem Set

Authors

Online Contests

User

Web Board
Home Page
F.A.Qs
Statistical Charts

Current Contest
Past Contests
Scheduled Contests
Award Contest

memset(len,1000000001,sizeof(len));改成用两个for(i:1-n ) for(j:1-n) len[i][j]=1000000001; 有什么区别么???

Posted by ook at 2005-08-09 20:16:05 on Problem 2395
In Reply To:JT! 让我WA了n!! 明明跟2485一样的,但是.......AC了,居然401MS! Posted by:ook at 2005-08-09 20:06:22

Followed by:

显然很有区别 (0) frkstyc 2005-08-09 20:16:40
- 讲讲,我就是这里太自信了!所以.... 无聊至极才改,就AC了!! (0) ook 2005-08-09 20:20:49
  - memset是按字节set的…… (0) frkstyc 2005-08-09 20:21:53
  - 这完全不同啊,仔细查查memset的用法吧 (0) c0500448242 2005-08-09 20:21:59
    - __asm { lea esi, [dst]; mov eax, val; mov ecx, cnt; rep stosb } (0) frkstyc 2005-08-09 20:23:31
      - esi->edi, [dst]->dst (0) frkstyc 2005-08-09 20:25:10
      - 好像会分配内存 (0) sunmoonstar_love 2005-08-09 20:25:50
        .................................. (0) frkstyc 2005-08-09 20:26:01
        Re:..................................是什么意思，会不会开内存？ (0) sunmoonstar_love 2005-08-09 20:37:02
  - Re:讲讲,我就是这里太自信了!所以.... 无聊至极才改,就AC了!! (15) 2007210566 2009-08-25 21:18:28
Re:memset(len,1000000001,sizeof(len)); memset是用来清零的，里面只能是0或-1吧 (0) poj4609149 2012-05-21 18:08:11

Post your reply here:

Home Page Go Back To top

All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator