output:
 standing for the number of arcs which weren't covered by fire --> 
 standing for the number of arcs which were covered by fire k times.
对不起...

• Re:D的题目描述更改 (182) CO2 2006-10-21 15:05:53
• 先说你们的服务器到底怎么回事!!!!!!!!!!!! (164) cici 2006-10-21 15:08:45
  • 顶啊！！！！！！！！！1 (0) Sempr 2006-10-21 15:09:35
    • 顶啊！！！！！！！！！1 (0) hdjt 2006-10-21 15:10:46
      • 顶 (0) davydc 2006-10-21 15:11:07
        • Re:顶 (0) beiyouyu 2006-10-21 15:11:27
  • 顶 (0) T2 2006-10-21 15:11:13
  • 顶 (0) Rainer 2006-10-21 15:11:34
  • 顶 (0) Becktim 2006-10-21 15:11:54
  • 顶！！！！！！！！！！！！！！！1 (0) xxxsssccc 2006-10-21 15:12:03
  • Re:先说你们的服务器到底怎么回事!!!!!!!!!!!! (32) starain 2006-10-21 15:21:41
  • 清华和上大都拿这种重大比赛来给自己开发的OJ做压力测试了，烦死了 (0) starain 2006-10-21 15:22:09
    • 哪用重大比赛，连practice contest都撑不过去 (0) leemars 2006-10-21 15:23:22
• Re:D的题目描述更改 (26) milan 2006-10-21 15:14:54