Volume 131 (13,100-13,199)

Problem ID Title Solution by Most Popular Input by
13100 Painting the Wall
13101 Tobby on Tree
13102 Tobby Stones
13103 Tobby and Seven
13104 Tobby and Prime Sum
13105 Alliances in Hogwarts
13106 Vogons
13107 Royale with Cheese
13108 Juanma and the Drinking Fountains
13109 Elephants
13110 Funny Day in Playland
13111 The Price Is Correct
13112 Are You OK?
13113 Presidential Election
13114 Josephus Lottery II
13115 Sudoku (4)
13116 Multistory Labyrinth
13117 ACIS, A Contagious vIruS
13118 Binary Land
13119 Castaways
13120 Radiation Alert in Rabbitland
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13121 Eclipsing Gianik Star
13122 Funny Cardiologist
13123 Christmas Lights
13124 Socialhare
13125 Water Troubles
13126 Wildcards
13127 Bank Robbery
13128 Tangamandapio
13129 Subsets
13130 Cacho
13131 Divisors (3)
13132 Laser Mirrors
13133 ConcatFibos
13134 Generate, Sort and Search
13135 Homework
13136 Recurrences (2)
13137 Progressions
13138 Kites (2)
13139 Lucas Numbers
13140 Squares, Lists and Digital Sums
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13141 Growing Trees
13142 Destroy the Moon to Save the Earth
13143 Dijkstractions
13144 Go Boards
13145 Wuymul Wixcha
13146 Edid Tistance
13147 Travel Planning
13148 A Giveaway
13149 Game of XOR
13150 National Bomb Defusing Squad
13151 Rational Grading
13152 Balanced String
13153 Number of Connected Components
13154 Extreme XOR Sum
13155 Harmonic Matrix
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13156 In the Kingdom of Hirak
13157 Prime Distance (2)
13158 8-Ball Rack
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13159 Within Arm's Reach
13160 Bribing Eve
13161 Candle Box
13162 Dinner Bet
13163 Passwords
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13164 Performance Review
13165 Cairo Corridor
13166 Pascal's Hyper-Pyramids
13167 The White Rabbit Pocket Watch
13168 Risky Lottery
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13169 Balls and Needles
13170 Verbal Arithmetic
13171 Pixel Art
13172 The Music Teacher
13173 Secret Santa
13174 The Entertainment of Machines
13175 Children to the Top
13176 Chocolate with Almonds
13177 Orchestral Scores
13178 Is it a Multiple of 3?
13179 Smarter than Hunger
13180 The Countess' Pearls
13181 Sleeping in Hostels
13182 Tobby's Ancestors
13183 Tobby and Array
13184 Counting Edges and Graphs
13185 DPA Numbers I
13186 Tobby and the quaseEquals Strings
13187 Felipe and the Sequence
13188 Rectangular Sum
13189 Humbertov and the Triangular Spiral
13190 Rockabye Tobby
13191 Tobby Primes
13192 Tobby and the Skeletons
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13193 Rotations
13194 DPA Numbers II
13195 Logical Equivalence
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13196 Solve This Equation
13197 Cuberoot This
13198 Knight on Wide Board
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13199 Circles in Ellipse
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