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Problems

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  ID Title Submit Solved
  3000 Roofing It 2 2
  3001 Plaque Pack 4 4
  3002 The Mastermind Master's Mind 1 1
  3003 Mahershalalhashbaz, Nebuchadnezzar, and Billy Bob Benjamin Go to the Regionals 137 71
  3004 Caterpillar 44 27
  3005 Dropping the stones 77 28
  3006 Last digit 323 86
  3007 String reduction 35 10
  3008 Add a queen 68 11
  3009 Stones for Amy 72 20
  3010 K-th Number 452 108
  3011 The Sierpinski Fractal 39 24
  3012 Product 48 7
  3013 tree 129 39
  3014 Seek the Name, Seek the Fame 292 126
  3015 Perfect hexagon achievement 15 5
  3016 Hexagonal Routes 24 0
  3017 Color 22 14
  3018 Tunnel Warfare 68 29
  3019 Count Color 453 126
  3020 X-factor Chains 235 82
  3021 Quad Tiling 106 46
  3022 Difference Is Beautiful 47 18
  3023 Network 47 24
  3024 Crossing 23 19
  3025 Artillery 132 56
  3026 Magic Bracelet 53 19
  3027 Latin Stones 9 7
  3028 Kaka's Matrix Travels 17 5
  3029 Binary II 95 11
  3030 DNA Sequence 226 46
  3031 Matrix Multiplication 68 10
  3032 Big String 114 30
  3033 Destroying a Painting 13 9
  3034 Keyword 10 8
  3035 反转序列 279 70
  3036 Unstable Systems 29 10
  3037 Painting the balls 362 54
  3038 Beloved Sons 76 41
  3039 数的字典序 21 8
  3040 环的最大非空非满子序列 29 5
  3041 Squares 4 3
  3042 Distributing tasks 23 10
  3043 Minimum Cost 56 31
  3044 Milk Patterns 30 25
  3045 Long Long Message 359 73
  3046 Odd Loving Bakers 35 18
  3047 Tree Grafting 14 10
  3048 Look and Say 702 402
  3049 Server Relocation 5 4
  3050 Coin Toss 28 14
  3051 Vacation Rentals 3 3
  3052 Baseball 2 2
  3053 Team Work 42 4
  3054 Wavelet Compression 4 4
  3055 Elementary Additions 10 9
  3056 Average distance 175 53
  3057 Bus Pass 18 6
  3058 Cutting Banknotes 17 14
  3059 Dice Password Security 20 15
  3060 Lingo 19 9
  3061 Splitting the Loot 15 6
  3062 Pachinko 17 8
  3063 Hiking 23 1
  3064 Ranking 40 12
  3065 Stock 29 15
  3066 John 171 79
  3067 Double Queue 153 62
  3068 'JBC' 37 1
  3069 Loan Scheduling 11 4
  3070 Showstopper 23 2
  3071 Highway 3 3
  3072 Computers 93 40
  3073 The Stable Marriage Problem 16 13
  3074 Ame Saknussemm 92 41
  3075 回文子串 481 139
  3076 相同字符串 1566 540
  3077 Remmarguts' Date 125 31
  3078 windy's "K-Monotonic" 30 18
  3079 ACRush's "K-Monotonic" 17 4
  3080 Monkey King 47 20
  3081 windy's cake I 811 246
  3082 windy's cake II 138 69
  3083 windy's cake III 226 105
  3084 windy's cake IV 73 18
  3085 windy's cake V 474 150
  3086 windy's cake VI 189 23
  3087 windy's cake VII 38 9
  3088 windy's cake VIII 161 74
  3089 windy's cake IX 46 8
  3090 windy's cake X 101 50
  3091 Common Substrings 90 34
  3092 Big Christmas Tree 155 61
  3093 Power Crisis II 14 8
  3094 Big number 183 30
  3095 A Different kind of Sorting 47 31
  3096 Investigating Div-Sum Property 46 19
  3097 Guards, Imbecile Guards 23 6
  3098 Bond 179 40
  3099 A Simple Problem with Integers 929 172