ID Problem Show tags Hide tags AC / Tried Difficulty
9228 P109C  Lucky Tree 0 / 0 6
9221 P111C  Petya and Spiders 0 / 0 7
9220 P111D  Petya and Coloring 0 / 0 8
9206 P115D  Unambiguous Arithmetic Expression 0 / 0 10
9205 P115E  Linear Kingdom Races 0 / 0 9
9194 P118D  Caesar's Legions 0 / 0 5
9190 P119C  Education Reform 0 / 0 7
9182 P120F  Spiders 0 / 0 4
9168 P123C  Brackets 0 / 0 8
9166 P123E  Maze 0 / 0 9
9157 P126B  Password 0 / 0 5
9155 P126D  Fibonacci Sums 0 / 0 8
9149 P128C  Games with Rectangle 0 / 0 7
9126 P132C  Logo Turtle 0 / 0 6
9125 P132D  Constants in the language of Shakespeare 0 / 0 7
9108 P137D  Palindromes 0 / 0 6
9103 P138D  World of Darkraft 0 / 0 9
9102 P138E  Hellish Constraints 0 / 0 10
9095 P140E  New Year Garland 0 / 0 10
9089 P141E  Clearing Up 0 / 0 8
9086 P142C  Help Caretaker 1 / 1 8
9074 P145C  Lucky Subsequence 0 / 0 7
9064 P148D  Bag of mice 1 / 2 6
9063 P148E  Porcelain 1 / 1 6
9059 P149D  Coloring Brackets 0 / 0 6
9054 P150D  Mission Impassable 0 / 0 10
9046 P152E  Garden 0 / 0 9
9031 P156C  Cipher 0 / 0 7
9029 P156E  Mrs 0 / 0 10
9022 P158E  Phone Talks 0 / 0 6
9018 P159D  Palindrome pairs 0 / 0 5
9008 P161D  Distance in Tree 0 / 0 6
9007 P161E  Polycarpus the Safecracker 0 / 0 9
8996 P163A  Substring and Subsequence 0 / 0 5
8992 P163E  e-Government 0 / 0 10
8984 P165C  Another Problem on Strings 0 / 0 5
8982 P165E  Compatible Numbers 0 / 0 8
8978 P166D  Shoe Store 0 / 0 9
8977 P166E  Tetrahedron 0 / 0 5
8975 P167B  Wizards and Huge Prize 0 / 0 6
8952 P173C  Spiral Maximum 0 / 0 6
8948 P174B  File List 0 / 0 4
8943 P175D  Plane of Tanks: Duel 0 / 0 9
8942 P175E  Power Defence 0 / 0 10
8939 P176B  Word Cut 0 / 0 5
8937 P176D  Hyper String 0 / 0 9
8905 P178F2  Representative Sampling 0 / 0 8
8901 P180C  Letter 0 / 0 4
8899 P180E  Cubes 0 / 0 6
8891 P182E  Wooden Fence 0 / 0 6
8887 P183D  T-shirt 0 / 0 10
8883 P185C  Clever Fat Rat 0 / 0 9
8877 P187B  AlgoRace 0 / 0 6
8865 P189A  Cut Ribbon 0 / 0 4
8858 P191A  Dynasty Puzzles 0 / 0 5
8805 P201A  Clear Symmetry 0 / 0 5
8802 P201C  Fragile Bridges 0 / 0 7
8800 P201D  Brand New Problem 0 / 0 10
8781 P204A  Little Elephant and Interval 0 / 0 5
8776 P204D  Little Elephant and Retro Strings 0 / 0 9
8746 P208B  Solitaire 0 / 0 6
8745 P208C  Police Station 0 / 0 6
8742 P209A  Multicolored Marbles 0 / 0 5
8737 P212C  Cowboys 0 / 0 7
8735 P212E  IT Restaurants 0 / 0 5
8733 P213B  Numbers 0 / 0 6
8732 P213C  Relay Race 0 / 0 7
8723 P215E  Periodical Numbers 0 / 0 7
8715 P217C  Formurosa 0 / 0 10
8708 P219C  Color Stripe 0 / 0 5
8707 P219D  Choosing Capital for Treeland 0 / 0 5
8694 P222E  Decoding Genome 0 / 0 6
8692 P223B  Two Strings 0 / 0 6
8684 P225C  Barcode 0 / 0 5
8672 P228C  Fractal Detector 0 / 0 7
8666 P229D  Towers 0 / 0 7
8665 P229E  Gifts 0 / 0 10
8658 P231E  Cactus 0 / 0 7
8656 P232B  Table 0 / 0 6
8655 P232C  Doe Graphs 0 / 0 10
8653 P232E  Quick Tortoise 0 / 0 10
8648 P234C  Weather 0 / 0 4
8645 P234F  Fence 0 / 0 6
8641 P235B  Let's Play Osu! 0 / 0 7
8638 P235E  Number Challenge 0 / 0 10
8628 P238C  World Eater Brothers 0 / 0 7
8626 P238E  Meeting Her 0 / 0 10
8606 P243D  Cubes 0 / 0 10
8595 P245H  Queries for Number of Palindromes 0 / 0 6
8590 P246E  Blood Cousins Return 0 / 0 9
8585 P248E  Piglet's Birthday 0 / 0 10
8584 P249D  Donkey and Stars 0 / 0 10
8575 P251C  Number Transformation 0 / 0 7
8573 P251E  Tree and Table 0 / 0 10
8569 P253B  Physics Practical 0 / 0 4
8561 P254E  Dormitory 0 / 0 7
8558 P255C  Almost Arithmetical Progression 0 / 0 5
8555 P256D  Liars and Serge 0 / 0 10
8547 P258B  Little Elephant and Elections 0 / 0 6
8546 P258C  Little Elephant and LCM 0 / 0 7

Categories

Lucky

Pick a problem randomly based on the current filter.