| 
          
         | 
        3001 | 
                
              3001
  4006. [JLOI2015]管道连接
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3002 | 
                
              3002
  4007. [JLOI2015]战争调度
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3003 | 
                
              3003
  4008. [HNOI2015]亚瑟王
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3004 | 
                
              3004
  4009. [HNOI2015]接水果
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3005 | 
                
              3005
  4010. [HNOI2015]菜肴制作
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3006 | 
                
              3006
  4011. [HNOI2015]落忆枫音
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3007 | 
                
              3007
  4012. [HNOI2015]开店
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3008 | 
                
              3008
  4013. [HNOI2015]实验比较
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3009 | 
                
              3009
  4014. [FJOI2014]病毒防护带
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3010 | 
                
              3010
  4015. [FJOI2014]树的重心
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3011 | 
                
              3011
  4016. [FJOI2014]最短路径树问题
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3012 | 
                
              3012
  4017. 小Q的无敌异或
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3013 | 
                
              3013
  4018. 小Q的幻想之乡
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3014 | 
                
              3014
  4019. 普罗达科特
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3015 | 
                
              3015
  4020. 未来程序·改
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3016 | 
                
              3016
  4021. 最优决策
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3017 | 
                
              3017
  4022. 新试题
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3018 | 
                
              3018
  4023. YDC的字符串
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3019 | 
                
              3019
  4024. 神犇的字符串集合
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3020 | 
                
              3020
  4025. 二分图
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3021 | 
                
              3021
  4026. dC Loves Number Theory
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3022 | 
                
              3022
  4027. [HEOI2015]兔子与樱花
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3023 | 
                
              3023
  4028. [HEOI2015]公约数数列
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3024 | 
                
              3024
  4029. [HEOI2015]定价
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3025 | 
                
              3025
  4030. [HEOI2015]小L的白日梦
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3026 | 
                
              3026
  4031. [HEOI2015]小Z的房间
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3027 | 
                
              3027
  4032. [HEOI2015]最短不公共子串
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3028 | 
                
              3028
  4033. [HAOI2015]树上染色
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3029 | 
                
              3029
  4034. [HAOI2015]树上操作
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3030 | 
                
              3030
  4035. [HAOI2015]数组游戏
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3031 | 
                
              3031
  4036. [HAOI2015]按位或
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3032 | 
                
              3032
  4037. [HAOI2015]数字串拆分
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3033 | 
                
              3033
  4038. 医疗援助
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3034 | 
                
              3034
  4039. 集会
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3035 | 
                
              3035
  4040. [Neerc2013]Kabaleo Lite
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3036 | 
                
              3036
  4041. [Neerc2013]ASCII Puzzle
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3037 | 
                
              3037
  4042. [Cerc2014] parades
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3038 | 
                
              3038
  4043. [Cerc2014] Vocabulary
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3039 | 
                
              3039
  4044. [Cerc2014] Virus synthesis
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3040 | 
                
              3040
  4045. [Cerc2014] bricks
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3041 | 
                
              3041
  4046. [Cerc2014] Pork barre
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3042 | 
                
              3042
  4047. [Cerc2014] The Imp
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3043 | 
                
              3043
  4048. [Cerc2014] Outer space invaders
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3044 | 
                
              3044
  4049. [Cerc2014] Mountainous landscape
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3045 | 
                
              3045
  4050. [Cerc2014] Wheels
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3046 | 
                
              3046
  4051. [Cerc2013] History course
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3047 | 
                
              3047
  4052. [Cerc2013]Magical GCD
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3048 | 
                
              3048
  4053. [Cerc2013]Subway
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3049 | 
                
              3049
  4054. [Cerc2013]Escape
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3050 | 
                
              3050
  4055. [Ctsc2015]misc
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3051 | 
                
              3051
  4056. [Ctsc2015]shallot
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3052 | 
                
              3052
  4057. [Cerc2012]Kingdoms
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3053 | 
                
              3053
  4058. [Cerc2012]Who wants to live forever?
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3054 | 
                
              3054
  4059. [Cerc2012]Non-boring sequences
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3055 | 
                
              3055
  4060. [Cerc2012]Word equations
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3056 | 
                
              3056
  4061. [Cerc2012]Farm and factory
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3057 | 
                
              3057
  4062. [Cerc2012]Jewel heist
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3058 | 
                
              3058
  4063. [Cerc2012]Darts
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3059 | 
                
              3059
  4064. [Cerc2012]The Dragon and the knights
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3060 | 
                
              3060
  4065. [Cerc2012]Graphic Madness
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3061 | 
                
              3061
  4066. 简单题
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3062 | 
                
              3062
  4067. [Ctsc2015]gender
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3063 | 
                
              3063
  4068. [Ctsc2015]app
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3064 | 
                
              3064
  4069. [Apio2015]巴厘岛的雕塑
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3065 | 
                
              3065
  4070. [Apio2015]雅加达的摩天楼
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3066 | 
                
              3066
  4071. [Apio2015]巴邻旁之桥
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3067 | 
                
              3067
  4072. [Wf2014]baggage
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3068 | 
                
              3068
  4073. [Wf2014]Buffed Buffet
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3069 | 
                
              3069
  4074. [Wf2014]Crane Balancing
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3070 | 
                
              3070
  4075. [Wf2014]Game Strategy
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3071 | 
                
              3071
  4076.  [ICPC2014 WF] Maze Reduction
         | 
        1 / 1 | 
        10 | 
      
      
        | 
          
         | 
        3072 | 
                
              3072
  4077. [Wf2014]Messenger
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3073 | 
                
              3073
  4078. [Wf2014]Metal Processing Plant
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3074 | 
                
              3074
  4079. [Wf2014]Pachinko
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3075 | 
                
              3075
  4080. [Wf2014]Sensor Network
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3076 | 
                
              3076
  4081. [Wf2014]Skiing
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3077 | 
                
              3077
  4082. [Wf2014]Surveillance
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3078 | 
                
              3078
  4083. [Wf2014]Wire Crossing
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3079 | 
                
              3079
  4084. [Sdoi2015]双旋转字符串
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3080 | 
                
              3080
  4085. [Sdoi2015]音质检测
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3081 | 
                
              3081
  4086. [Sdoi2015]旅行计划
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3082 | 
                
              3082
  4087. [Sdoi2015]模拟电路
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3083 | 
                
              3083
  4088. [Sdoi2015]立体图
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3084 | 
                
              3084
  4089. [Sdoi2015]嫁接树
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3085 | 
                
              3085
  4090. [Neerc2013]Easy Geometry
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3086 | 
                
              3086
  4091. [Zjoi2015]醉熏熏的幻想乡
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3087 | 
                
              3087
  4092. [Zjoi2015]幻想乡Wifi搭建计划
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3088 | 
                
              3088
  4093. [Usaco2013 Dec]Vacation Planning
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3089 | 
                
              3089
  4094. [Usaco2013 Dec]Optimal Milking
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3090 | 
                
              3090
  4095. [Usaco2013 Dec]The Bessie Shuffle
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3091 | 
                
              3091
  4096. [Usaco2013 dec]Milk Scheduling
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3092 | 
                
              3092
  4097. [Usaco2013 dec]Vacation Planning
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3093 | 
                
              3093
  4098. [Usaco2015 Open]Palindromic Paths
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3094 | 
                
              3094
  4099. [Usaco2015 Open]Trapped in the Haybales
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3095 | 
                
              3095
  4100. [Usaco2015 Open]Bessie Goes Moo
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3096 | 
                
              3096
  4101. [Usaco2015 Open]Trapped in the Haybales
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3097 | 
                
              3097
  4102. [Usaco2015 Open]Bessie
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3098 | 
                
              3098
  4103. [Thu Summer Camp 2015]异或运算
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3099 | 
                
              3099
  4104. [Thu Summer Camp 2015]解密运算
         | 
        0 / 0 | 
        (无) | 
      
      
        | 
          
         | 
        3100 | 
                
              3100
  4105. [Thu Summer Camp 2015]平方运算
         | 
        0 / 0 | 
        (无) |