| 
          
         | 
        3087 | 
                
              3087
  [Usaco2005 Dec]Cleaning Shifts 清理牛棚
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3092 | 
                
              3092
  [Usaco2005]Part Acquisition
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3109 | 
                
              3109
  [Usaco2005 Mar]Out of Hay 干草危机
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3114 | 
                
              3114
  [Usaco2016 Open]Closing the Farm
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3122 | 
                
              3122
  [Usaco2016 Open]Diamond Collector
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        4577 | 
                
              P3128
  [USACO15DEC] Max Flow P
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3129 | 
                
              3129
  [Apio2016]烟火表演
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3155 | 
                
              3155
  [Shoi2015]脑洞治疗仪
         | 
        1 / 6 | 
        10 | 
      
      
        | 
          
         | 
        3167 | 
                
              3167
  [Cqoi2010]内部白点
         | 
        1 / 12 | 
        10 | 
      
      
        | 
          
         | 
        3173 | 
                
              3173
  [JSOI2010] 部落划分
         | 
        3 / 11 | 
        9 | 
      
      
        | 
          
         | 
        3279 | 
                
              3279
  [Scoi2010]序列操作
         | 
        0 / 1 | 
        10 | 
      
      
        | 
          
         | 
        4994 | 
                
              P3302
  [SDOI2013] 森林
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3310 | 
                
              3310
  [SDOI2009]HH的项链
         | 
        1 / 1 | 
        10 | 
      
      
        | 
          
         | 
        3321 | 
                
              3321
  Match
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3407 | 
                
              3407
  [Violet] 蒲公英
         | 
        1 / 1 | 
        10 | 
      
      
        | 
          
         | 
        3412 | 
                
              3412
  [HNOI2012] 永无乡
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3440 | 
                
              3440
  [Usaco2007 Demo]Walk the Talk
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3448 | 
                
              3448
  [HAOI2012] 高速公路
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3455 | 
                
              3455
  狼和羊
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3457 | 
                
              3457
  [Usaco2007 Jan]Balanced Lineup排队
         | 
        0 / 0 | 
        (无) |