Contest
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Codeforces Round 1012 (Div. 1)
A. Simple Permu...
B1. Canteen (Eas...
B2. Canteen (Har...
C1. Key of Like ...
C2. Key of Like ...
D. Conditional ...
E. Black Cat Co...
Codeforces Round 1008 (Div. 1)
A. Breach of Faith
B. Finding OR Sum
C. Binary Subse...
D. Maximum Polygon
E. Another Fold...
F. AND x OR
G. RGB Walking
Codeforces Round 1004 (Div. 1)
A. Object Ident...
B. White Magic
C. Bitwise Slides
D1. Club of Youn...
D2. Club of Youn...
E. Tropical Season
F. Curse
Codeforces Round 990 (Div. 1)
A. Swap Columns...
B. Move Back at...
C. Adventurers
D. For the Empe...
E1. Cheops and a...
E2. Cheops and a...
F1. Yandex Cunei...
F2. Yandex Cunei...
Codeforces Round 980 (Div. 1)
A. Concatenatio...
B. Skipping
C. C+K+S
D. Many Games
E. Tree of Life
F. Hills and Pits
Codeforces Round 975 (Div. 1)
A. Cards Partition
B. Speedbreaker
C. Tree Pruning
D. Max Plus Min...
E1. Complex Segm...
E2. Complex Segm...
F1. Speedbreaker...
F2. Speedbreaker...
F3. Speedbreaker...
Codeforces Round 969 (Div. 1)
A. Iris and Gam...
B. Iris and the...
C. Eri and Expa...
D. Iris and Adj...
E. Iris's Full ...
F. Dora's Paint
Codeforces Round 942 (Div. 1)
A. Permutation ...
B1. Reverse Card...
B2. Reverse Card...
C. Fenwick Tree
D. Long Way to ...
E1. Again Counti...
E2. Again Counti...
F. Next and Prev
Codeforces Round 941 (Div. 1)
A. Everything Nim
B. Missing Subs...
C. Folding Strip
D. Missing Suba...
E. Connected Cubes
F. Conference
Codeforces Round 934 (Div. 1)
A. MEX Game 1
B. Non-Palindro...
C. Tree Compass
D1. Counting Is ...
D2. Counting Is ...
E1. MEX Game 2 (...
E2. MEX Game 2 (...
F. Minimum Hamm...
Codeforces Round 930 (Div. 1)
A. Bitwise Oper...
B. Pinball
C. Pokémon Arena
D. Bitwise Paradox
E. Yet Yet Anot...
F. Grand Finale...
Codeforces Round 921 (Div. 1)
A. Did We Get E...
B. Space Harbour
C. Fractal Origami
D. Balanced Sub...
E. Paper Cuttin...
F. Anti-Proxy A...
Codeforces Round 908 (Div. 1)
A. Anonymous In...
B. Neutral Tona...
C. Freedom of C...
D. Colorful Con...
E. Cacti Symphony
Codeforces Round 906 (Div. 1)
A. Qingshan Lov...
B. Doremy's Con...
C1. Doremy's Dry...
C2. Doremy's Dry...
D. Game of Stacks
E. Doremy's Swa...
F. Doremy's Ave...
Codeforces Round 905 (Div. 1)
B. Time Travel
C. Minimum Array
D. Split
E. Good Colorings
F. Minimum Segm...
Codeforces Round 901 (Div. 1)
A. Jellyfish an...
B. Jellyfish an...
C. Jellyfish an...
D. Jellyfish an...
E. Jellyfish an...
F. Jellyfish an...
G. Jellyfish an...
Codeforces Round 896 (Div. 1)
A. Fill in the ...
B1. Candy Party ...
B2. Candy Party ...
C. Travel Plan
D. Flower-like ...
E. Min-Sum-Max
F. LIS?
Codeforces Round 889 (Div. 1)
A1. Dual (Easy V...
A2. Dual (Hard V...
B. Earn or Unlock
C. Expected Des...
D. Michael and ...
E. Game Bundles
F. Mark and Spa...
Codeforces Round 887 (Div. 1)
A. Ntarsis' Set
B. Imbalanced A...
C. Ina of the M...
D. Miriany and ...
E. Rivalries
F. Panda Meetups
Codeforces Round 880 (Div. 1)
A. k-th equality
B. Lottery
C. Twin Clusters
D. Doctor's Bro...
E. Old Mobile
F. Good Graph
Codeforces Round 875 (Div. 1)
A. Copil Copac ...
B. The BOSS Can...
C. Hyperregular...
D. Mex Tree
E. Bully Sort
F. The Third Grace
Codeforces Round 873 (Div. 1)
A. Counting Orders
B1. Range Sortin...
B2. Range Sortin...
C. Palindrome P...
D. Two Centroids
E. Bus Routes
F. Copium Permu...
Codeforces Round 872 (Div. 1)
A. LuoTianyi an...
B1. LuoTianyi an...
B2. LuoTianyi an...
C. LuoTianyi an...
D. LuoTianyi an...
E. LuoTianyi an...
Codeforces Round 869 (Div. 1)
A. Almost Incre...
B. Fish Graph
C. Similar Poly...
D. Toy Machine
E. Half-sum
F. Entangled Su...
Codeforces Round 866 (Div. 1)
A. Constructive...
B. The Butcher
C. The Fox and ...
D. Misha and Ap...
E. Roads in E City
F. Willy-nilly,...
Codeforces Round 865 (Div. 1)
A. Ian and Arra...
B. Sum Graph
C. Between
D. XOR Counting
E. Bosco and Pa...
F. OH NO1 (-2-3-4)
Codeforces Round 857 (Div. 1)
A. The Very Bea...
B. Buying gifts
C. Music Festival
D. The way home
E. Gasoline prices
F. Another n-di...
G. A task for s...
Codeforces Round 829 (Div. 1)
A1. Make Nonzero...
A2. Make Nonzero...
B. Factorial Di...
C. Wish I Knew ...
D. The Beach
E. N Machines
F. Minecraft Se...
Codeforces Round 814 (Div. 1)
A1. Burenka and ...
A2. Burenka and ...
B. Fibonacci St...
C. Tonya and Bu...
D. Permutation ...
E. Impressionism
F. Burenka, an ...
Codeforces Round 810 (Div. 1)
A. Color the Pi...
B. Rain
C. XOR Triangle
D. Recover the ...
E. Two Arrays
Codeforces Round 808 (Div. 1)
A. Doremy's IQ
B. Difference A...
C. DFS Trees
D. Partial Virt...
E. Replace
F. Bugaboo
Codeforces Round 800 (Div. 1)
A. Directional ...
B. Fake Plastic...
C. Keshi in Sea...
D. Decinc Dividing
E. Outermost Ma...
F. I Might Be W...
Codeforces Round 796 (Div. 1)
A. The Enchante...
B. Railway System
C. Sanae and Gi...
D. Cute number
E. Become Big F...
F. Koishi's Unc...
Codeforces Round 794 (Div. 1)
A. Circular Loc...
B. Linguistics
C. Bring Balance
D1. Permutation ...
D2. Permutation ...
E. The Ultimate...
Codeforces Round 789 (Div. 1)
A. Tokitsukaze ...
B. Tokitsukaze ...
C. Tokitsukaze ...
D. Tokitsukaze ...
E. Tokitsukaze ...
F. Tokitsukaze ...
Codeforces Round 783 (Div. 1)
A. Make it Incr...
B. Optimal Part...
C. Half Queen C...
D. Edge Elimina...
E. Centroid Pro...
F. Yin Yang
Codeforces Round 773 (Div. 1)
A. Great Sequence
B. Repetitions ...
C. Anonymity Is...
D. Two Arrays
E. Special Posi...
F. Covering Circle
Codeforces Round 768 (Div. 1)
A. And Matching
B. Range and Pa...
C. Paint the Mi...
D. Flipping Range
E. Expected Com...
F. Making It Bi...
Codeforces Round 767 (Div. 1)
A. Meximum Array
B. Peculiar Mov...
C. Grid Xor
D1. Game on Sum ...
D2. Game on Sum ...
E. Groceries in...
F. Spaceship Cr...
Codeforces Round 752 (Div. 1)
A. Di-visible C...
B. Moderate Mod...
C. Extreme Exte...
D. Artistic Par...
E. A Perfect Pr...
F. October 18, ...
Codeforces Round 751 (Div. 1)
A. Array Elimin...
B. Frog Traveler
C. Optimal Inse...
D. Difficult Mo...
E. Phys Ed Online
F. Two Sorts
Codeforces Round 745 (Div. 1)
A. Portal
B. Mathematics ...
C. Train Mainte...
D. Subsequence
E. Railway Cons...
F. Problems for...
Codeforces Round 743 (Div. 1)
A. Book
B. Xor of 3
C. Paint
D. Bridge Club
E. Polygon
F. Stations
Codeforces Round 736 (Div. 1)
A. Web of Lies
B. Integers Hav...
C. The Three Li...
D1. Gregor and t...
D2. Gregor and t...
E. Gregor and t...
Codeforces Round 732 (Div. 1)
A. AquaMoon and...
B. AquaMoon and...
C. AquaMoon and...
D. AquaMoon and...
E1. AquaMoon and...
E2. AquaMoon and...
F. AquaMoon and...
Codeforces Round 728 (Div. 1)
A. Great Graphs
B. Tree Array
C1. Converging A...
C2. Converging A...
D. Inverse Inve...
E. Tasty Dishes
Codeforces Round 722 (Div. 1)
A. Parsa's Humo...
B. Kavi on Pair...
C. Trees of Tra...
D. It's a bird!...
E. Mashtali and...
F. AmShZ Farm
Codeforces Round 715 (Div. 1)
A. Binary Liter...
B. Almost Sorted
C. Complete the...
D. Swap Pass
E. Tree Calendar
F. Optimal Enco...
Codeforces Round 712 (Div. 1)
A. Balance the ...
B. 3-Coloring
C. Travelling S...
D. Flip the Cards
E. 2-Coloring
F. Balance the ...
Codeforces Round 706 (Div. 1)
A. Diamond Miner
B. Let's Go Hiking
C. Garden of th...
D. BFS Trees
E. Qingshan and...
F. Squares
Codeforces Round 700 (Div. 1)
A. Searching Lo...
B1. Painting the...
B2. Painting the...
C. Continuous City
D. Odd Mineral ...
E. School Clubs
Codeforces Round 698 (Div. 1)
A. Nezzar and B...
B. Nezzar and B...
C. Nezzar and N...
D. Nezzar and H...
E. Nezzar and T...
F. Nezzar and C...
Codeforces Round 694 (Div. 1)
A. Strange Birt...
B. Strange Defi...
C. Strange Shuffle
D. Strange Housing
E. Strange Perm...
F. Strange Cove...
Codeforces Round 691 (Div. 1)
A. Row GCD
B. Glass Half S...
C. Latin Square
D. Flip and Rev...
E. Nim Shortcuts
F. Range Diamet...
Codeforces Round 684 (Div. 1)
A1. Binary Table...
A2. Binary Table...
B. Graph Subset...
C. Greedy Shopping
D. INOI Final C...
E. Cheat and Win
Codeforces Round 673 (Div. 1)
A. k-Amazing Nu...
B. Make Them Equal
C. XOR Inverse
D. Graph and Qu...
E. Split
F. Showing Off
Codeforces Round 668 (Div. 1)
A. Balanced Bit...
B. Tree Tag
C. Fixed Point ...
D. Game of Pairs
E. Bricks
Codeforces Round 666 (Div. 1)
A. Multiples of...
B. Stoned Game
C. Monster Inva...
D. Rainbow Rect...
E. Distance Mat...
Codeforces Round 664 (Div. 1)
A. Boboniu Chat...
B. Boboniu Walk...
C. Boboniu and ...
D. Boboniu and ...
E. Boboniu and ...
Codeforces Round 659 (Div. 1)
A. String Trans...
B. GameGame
C. String Trans...
D. Rearrange
E. Strange Oper...
F. Special Edges
Codeforces Round 658 (Div. 1)
A1. Prefix Flip ...
A2. Prefix Flip ...
B. Unmerge
C. Mastermind
D. The Majestic...
E. Origami
Codeforces Round 647 (Div. 1) -
A. Johnny and C...
B. Johnny and G...
C. Johnny and M...
D. Johnny and J...
E. James and th...
F. Johnny and N...
Codeforces Round 641 (Div. 1)
A. Orac and LCM
B. Orac and Med...
C. Orac and Gam...
D. Slime and Bi...
E. Slime and Hats
F1. Slime and Se...
F2. Slime and Se...
Codeforces Round 639 (Div. 1)
A. Hilbert's Hotel
B. Monopole Mag...
C. Quantifier Q...
D. Résumé Review
E. Train Tracks
F. Piet's Palette
Codeforces Round 637 (Div. 1) -
A. Nastya and S...
B. Nastya and S...
C. Nastya and U...
D. Nastya and T...
E. Nastya and Bees
F. Nastya and CBS
Codeforces Round 635 (Div. 1)
A. Linova and K...
B. Xenia and Co...
C. Kaavi and Ma...
D. Yui and Mahj...
E1. Chiori and D...
E2. Chiori and D...
F. Journey
Codeforces Round 633 (Div. 1)
A. Powered Addi...
B. Edge Weight ...
C. Perfect Triples
D. Nested Rubbe...
E. JYPnation
Codeforces Round 631 (Div. 1) -
A. Dreamoon Lik...
B. Dreamoon Lik...
C. Drazil Likes...
D. Dreamoon Lik...
E. Dreamoon Lov...
Codeforces Round 618 (Div. 1)
A. Anu Has a Fu...
B. Aerodynamic
C. Water Balance
D. Around the W...
E. So Mean
Codeforces Round 616 (Div. 1)
A. Mind Control
B. Irreducible ...
C. Prefix Enlig...
D. Coffee Varie...
E. Cartesian Tree
F. Making Shapes
Codeforces Round 614 (Div. 1)
A. NEKO's Maze ...
B. Aroma's Search
C. Xenon's Atta...
D. Chaotic V.
E. Rin and The ...
F. Nora's Toy B...
Codeforces Round 612 (Div. 1)
A. Garland
B. Numbers on Tree
C1. Madhouse (Ea...
C2. Madhouse (Ha...
D. LCC
E. Fedya the Po...
F. Harry The Po...
Codeforces Round 609 (Div. 1)
A. Long Beautif...
B. Domino for Y...
C. K Integers
D. Invertation ...
E. Happy Cactus
Codeforces Round 607 (Div. 1)
A. Cut and Paste
B. Beingawesomeism
C. Jeremy Bearimy
D. Miss Punyverse
E. Kirchhoff's ...
F. Intergalacti...
Codeforces Round 604 (Div. 1)
A. Beautiful Re...
B. Beautiful Se...
C. Beautiful Mi...
D1. Beautiful Br...
D2. Beautiful Br...
E. Beautiful Le...
F. Beautiful Fi...
Codeforces Round 601 (Div. 1)
A. Feeding Chicken
B1. Send Boxes t...
B2. Send Boxes t...
C. Point Ordering
D. Tree Queries
E. Send Tree to...
Codeforces Round 599 (Div. 1)
A. Tile Painting
B. 0-1 MST
C. Sum Balance
D. Number Disco...
E. Planar Perim...
Codeforces Round 594 (Div. 1)
A. Ivan the Foo...
B. The World Is...
C. Queue in the...
D. Catowice City
E. Turtle
F. Swiper, no s...
Codeforces Round 580 (Div. 1)
A. Almost Equal
B. Shortest Cycle
C. Palindromic ...
D. Almost All
E. Expected Val...
F. Beauty of a ...
Codeforces Round 576 (Div. 1)
A. MP3
B. Welfare State
C. Matching vs ...
D. Rectangle Pa...
E. Rectangle Pa...
F. GCD Groups 2
Codeforces Round 573 (Div. 1)
B. Tokitsukaze,...
Codeforces Round 572 (Div. 1)
A1. Add on a Tree
A2. Add on a Tre...
B. Count Pairs
C. Array Beauty
D. Make Equal
E. Problem from...
Codeforces Round 569 (Div. 1)
A. Valeriy and ...
B. Tolik and Hi...
C. Serge and Di...
D. Fedor Runs f...
E. Alesya and D...
Codeforces Round 564 (Div. 1)
A. Nauuo and Cards
B. Nauuo and Ci...
C1. Nauuo and Pi...
C2. Nauuo and Pi...
D. Nauuo and Po...
E. Nauuo and ODT
F. Nauuo and Bug
Codeforces Round 562 (Div. 1)
A. Increasing b...
B. Good Triple
C. And Reachabi...
D. Anagram Paths
E. Xor Permutat...
Codeforces Round 559 (Div. 1)
A. The Party an...
B. The minimal ...
C. Permutation ...
D. Winding poly...
E. Strange device
F. Density of s...
Codeforces Round 556 (Div. 1)
A. Prefix Sum P...
B. Three Religions
C. Tree Generatorâ„¢
D. Abandoning R...
E. Election Pro...
Codeforces Round 549 (Div. 1)
A. The Beatles
B. Lynyrd Skynyrd
C. U2
D. Foreigner
E. Pink Floyd
Codeforces Round 545 (Div. 1)
A. Skyscrapers
B. Camp Schedule
C. Museums Tour
D. Cooperative ...
E. Train Car Se...
F. Matches Are ...
Codeforces Round 542 [Alex Lopa
A1. Toy Train (S...
A2. Toy Train
B. Wrong Answer
C. Morse Code
D. Isolation
E. Legendary Tree
Codeforces Round 539 (Div. 1)
A. Sasha and a ...
B. Sasha and On...
C. Sasha and a ...
D. Sasha and In...
E. Sasha and a ...
F. Sasha and Al...
Codeforces Round 534 (Div. 1)
A. Grid game
B. Game with mo...
C. Johnny Solving
D. Professional...
E. Radix sum
Codeforces Round 530 (Div. 1)
A. Sum in the tree
B. Nice table
C. Construct a ...
D. Eels
F. Ж-function
Codeforces Round 526 (Div. 1)
A. The Fair Nut...
B. The Fair Nut...
C. Max Mex
D. The Fair Nut...
E. The Fair Nut...
F. The Fair Nut...
Codeforces Round 518 (Div. 1) [
A. Array Withou...
B. Multihedgehog
C. Knights
D. Computer Game
E. Random Fores...
Codeforces Round 511 (Div. 1)
A. Enlarge GCD
B. Little C Lov...
C. Region Separ...
D. Intervals of...
E. Little C Lov...
Codeforces Round 500 (Div. 1) [
A. Photo of The...
B. Chemical table
C. Hills
D. AB-Strings
E. Cycle sort
F. Passports
Codeforces Round 499 (Div. 1)
A. Fly
B. Rocket
C. Border
D. Mars rover
E. Store
F. Tree
Codeforces Round 497 (Div. 1)
A. Reorder the ...
B. Pave the Par...
C. Guess two nu...
D. Ants
E. Mini Metro
Codeforces Round 493 (Div. 1)
A. Convert to Ones
B. Roman Digits
C. Sky Full of ...
D. Cycles in pr...
E. Good Subsegm...
Codeforces Round 492 (Div. 1) [
A. Tesla
B. Suit and Tie
C. Leaving the Bar
D. Game
E. Number Clicker
F. Cowmpany Cow...
Codeforces Round 488 by NEAR (D
A. Two Squares
B. Open Communi...
C. Careful Mane...
D. Compute Power
E. Nikita and O...
F. The Moral Di...
Codeforces Round 485 (Div. 1)
A. Fair
B. Petr and Per...
C. AND Graph
D. Perfect Enco...
E. Prince's Pro...
F. Oppa Funcan ...
Codeforces Round 483 (Div. 1) [
A. Finite or not?
B. XOR-pyramid
C. Elevator
D. Arkady and R...
E. NN country
Tinkoff Internship Warmup Round
A. Alternating Sum
B. Destruction ...
C. Cutting Rect...
D. Frequency of...
E. Circles of W...
Codeforces Round 469 (Div. 1)
A. Zebras
B. A Leapfrog i...
C. Data Center ...
D. Curfew
E. Binary Cards
F. Astronomy
Codeforces Round 467 (Div. 1)
A. Save Energy!
B. Sleepy Game
C. Lock Puzzle
D. World of Tank
E. Iqea
Codeforces Round 462 (Div. 1)
A. A Twisty Mov...
B. A Determined...
C. A Colourful ...
D. A Creative C...
E. A Prepondera...
Codeforces Round 459 (Div. 1)
A. The Monster
B. MADMAX
C. Pollywog
D. Stranger Trees
E. Upside Down
Codeforces Round 453 (Div. 1)
A. Hashing Trees
B. GCD of Polyn...
C. Bipartite Se...
D. Weighting a ...
E. Cyclic Cipher
Codeforces Round 449 (Div. 1)
A. Nephren give...
B. Ithea Plays ...
C. Willem, Chth...
D. Nephren Runs...
E. Welcome home...
Codeforces Round 446 (Div. 1)
A. Pride
B. Gluttony
C. Envy
D. Sloth
E. Lust
Codeforces Round 443 (Div. 1)
A. Short Program
B. Teams Formation
C. Tournament
D. Magic Breeding
E. Numbers on t...
Codeforces Round 431 (Div. 1)
A. From Y to Y
B. Rooter's Song
C. Goodbye Souv...
D. Shake It!
E. Days of Flor...
AIM Tech Round 4 (Div. 1)
A. Sorting by S...
B. Interactive ...
C. Upgrading Tree
D. Dynamic Shor...
E. Maximum Flow
Codeforces Round 429 (Div. 1)
A. Leha and Fun...
B. Leha and ano...
C. On the Bench
D. Destiny
E. In a Trap
Codeforces Round 426 (Div. 1)
A. The Meaningl...
B. The Bakery
C. Ever-Hungry ...
D. Red-Black Co...
E. Caramel Clouds
Codeforces Round 421 (Div. 1)
A. Mister B and...
B. Mister B and...
C. Mister B and...
D. Mister B and...
E. Mister B and...
Codeforces Round 419 (Div. 1)
A. Karen and Game
B. Karen and Test
C. Karen and Su...
D. Karen and Cards
E. Karen and Ne...
Codeforces Round 415 (Div. 1)
A. Do you want ...
B. Glad to see ...
C. Find a car
D. Hitchhiking ...
E. Surprise me!
Codeforces Round 411 (Div. 1)
A. Find Amir
B. Minimum numb...
C. Ice cream co...
D. Expected dia...
E. The same per...
F. Fake bullions
Codeforces Round 407 (Div. 1)
A. Functions again
B. Weird journey
C. The Great Mi...
D. Finding lines
E. New task
Codeforces Round 406 (Div. 1)
A. Berzerk
B. Legacy
C. Till I Collapse
D. Rap God
E. ALT
Codeforces Round 402 (Div. 1)
A. String Game
B. Bitwise Formula
C. Peterson Pol...
D. Parquet Re-l...
E. Selling Numbers
Codeforces Round 395 (Div. 1)
A. Timofey and ...
B. Timofey and ...
C. Timofey and ...
D. Timofey and ...
E. Timofey and ...
Codeforces Round 385 (Div. 1)
A. Hongcow Buil...
B. Hongcow's Game
C. Hongcow Buys...
D. Hongcow Draw...
E. Hongcow Mast...
Codeforces Round 383 (Div. 1)
A. Arpa's loud ...
B. Arpa's weak ...
C. Arpa’s overn...
D. Arpa’s lette...
E. Arpa’s abnor...
Codeforces Round 382 (Div. 1)
D. Permutations
E. Chess Champi...
Codeforces Round 381 (Div. 1)
A. Alyona and mex
B. Alyona and a...
C. Alyona and t...
D. Recover a fu...
E. Gosha is hun...
Codeforces Round 373 (Div. 1)
A. Efim and Str...
C. Sasha and Array
D. Andrew and C...
E. Matvey's Bir...
Codeforces Round 372 (Div. 1)
A. Plus and Squ...
B. Complete The...
C. Digit Tree
D. Create a Maze
E. Complete the...
Codeforces Round 371 (Div. 1)
A. Sonya and Qu...
B. Searching Re...
C. Sonya and Pr...
D. Animals and ...
E. Sonya Partym...
AIM Tech Round 3 (Div. 1)
A. Letters Cycl...
B. Recover the ...
C. Centroids
D. Incorrect Flow
E. Student's Camp
Codeforces Round 366 (Div. 1)
A. Thor
B. Ant Man
C. Black Widow
D. Captain America
E. Iron Man
Codeforces Round 364 (Div. 1)
A. As Fast As P...
B. Connecting U...
C. Break Up
D. Huffman Codi...
E. Cool Slogans
Codeforces Round 363 (Div. 1)
A. Vacations
B. Fix a Tree
C. LRU
D. Limak and Sh...
E. Cron
F. Coprime Perm...
Codeforces Round 362 (Div. 1)
A. Lorenzo Von ...
B. Puzzles
C. PLEASE
D. Legen...
E. ...Wait for ...
F. ...Dary!
Codeforces Round 360 (Div. 1)
A. NP-Hard Problem
B. Remainders Game
C. The Values Y...
D. Dividing Kin...
E. TOF
Codeforces Round 359 (Div. 1)
A. Robbers' watch
B. Kay and Snow...
C. Optimal Point
D. Kay and Eter...
E. Travelling T...
Codeforces Round 356 (Div. 1)
A. Bear and Pri...
B. Bear and Tow...
C. Bear and Squ...
D. Bear and Chase
E. Bear and Bad...
Codeforces Round 352 (Div. 1)
A. Recycling Bo...
B. Robin Hood
C. Ultimate Wei...
D. Roads in Yus...
E. Organizing a...
Codeforces Round 349 (Div. 1)
A. Reberland Li...
B. World Tour
C. Codeword
D. Chain Reaction
E. Forensic Exa...
Codeforces Round 347 (Div. 1)
A. Rebus
Codeforces Round 345 (Div. 1)
A. Watchmen
B. Image Preview
C. Table Compre...
D. Zip-line
E. Clockwork Bomb
AIM Tech Round (Div. 1)
A. Graph and St...
B. Array GCD
C. Electric Cha...
D. Birthday
E. Transforming...
Codeforces Round 339 (Div. 1)
A. Peter and Sn...
B. Skills
C. Necklace
D. Kingdom and ...
E. Puzzle Lover
Codeforces Round 336 (Div. 1)
A. Chain Reaction
B. Zuma
C. Marbles
D. Power Tree
E. Cross Sum
Codeforces Round 335 (Div. 1)
A. Sorting Rail...
B. Lazy Student
C. Freelancer's...
D. Board Game
E. Intergalaxy ...
Codeforces Round 334 (Div. 1)
A. Alternative ...
B. Moodular Ari...
C. Lieges of Le...
D. Ruminations ...
E. Pastoral Odd...
Codeforces Round 333 (Div. 1)
A. The Two Routes
B. Lipshitz Seq...
C. Kleofáš and ...
D. Acyclic Orga...
E. A Museum Rob...
Codeforces Round 330 (Div. 1)
A. Warrior and ...
B. Max and Bike
C. Edo and Magnets
D. REQ
E. Cutting the ...
Codeforces Round 327 (Div. 1)
A. Median Smoot...
B. Chip 'n Dale...
C. Three States
D. Top Secret Task
E. Birthday
Codeforces Round 326 (Div. 1)
A. Duff and Wei...
B. Duff in Beach
C. Duff in the ...
D. Duff in Mafia
E. Duff as a Queen
F. Duff is Mad
Codeforces Round 325 (Div. 1)
A. Gennady the ...
B. Phillip and ...
C. Alice, Bob, ...
D. Lizard Era: ...
E. Present for ...
F. Digits of Nu...
Codeforces Round 323 (Div. 1)
A. GCD Table
B. Once Again...
C. Superior Per...
D. Number of Bi...
E. Boolean Func...
Codeforces Round 320 (Div. 1) [
A. A Problem ab...
B. "Or" Game
C. Weakness and...
D. LCS Again
E. Walking!
F. Mirror Box
Codeforces Round 319 (Div. 1)
A. Vasya and Pe...
B. Invariance o...
C. Points on Plane
D. Flights for ...
E. Painting Edges
Codeforces Round 318 [RussianCo
A. Bear and Poker
B. Bear and Blocks
C. Bear and Dra...
D. Bear and Cav...
E. Bear and Bow...
Codeforces Round 317 [AimFund T
A. Lengthening ...
B. Minimization
C. CNF 2
D. Campus
E. Geometric Pr...
Codeforces Round 315 (Div. 1)
A. Primes or Pa...
B. Symmetric an...
C. New Language
D. Sign Posts
E. Longest Incr...
Codeforces Round 313 (Div. 1)
A. Gerald's Hex...
B. Equivalent S...
C. Gerald and G...
D. Randomizer
E. Gerald and Path
Codeforces Round 310 (Div. 1)
A. Case of Matr...
B. Case of Fugi...
C. Case of Choc...
D. Case of a To...
E. Case of Comp...
Codeforces Round 309 (Div. 1)
A. Kyoya and Co...
B. Kyoya and Pe...
C. Love Triangles
D. Nudist Beach
E. Kyoya and Train
Codeforces Round 305 (Div. 1)
A. Mike and Frog
B. Mike and Feet
C. Mike and Foam
D. Mike and Fish
E. Mike and Fri...
Codeforces Round 302 (Div. 1)
A. Writing Code
B. Destroying R...
C. Remembering ...
D. Road Improve...
E. Listening to...
Codeforces Round 299 (Div. 1)
D. Tavas in Kansas
E. Tavas on the...
Codeforces Round 296 (Div. 1)
D. Fuzzy Search
E. Triangles 3000
Codeforces Round 295 (Div. 1)
D. Shop
E. Cycling City
Codeforces Round 292 (Div. 1)
D. Drazil and M...
E. Drazil and H...
Codeforces Round 290 (Div. 1)
D. Fox And Trav...
E. Fox And Polygon
Codeforces Round 286 (Div. 1)
D. Mr. Kitayuta...
E. Mr. Kitayuta...
Codeforces Round 285 (Div. 1)
D. Misha and XOR
E. Misha and LC...
Codeforces Round 284 (Div. 1)
A. Crazy Town
B. Name That Tune
C. Array and Op...
D. Traffic Jams...
E. Stairs and L...
Codeforces Round 283 (Div. 1)
D. Gears
E. Subsequences...
Codeforces Round 282 (Div. 1)
A. Treasure
B. Obsessive St...
C. Helping People
E. Sharti
Codeforces Round 278 (Div. 1)
A. Fight the Mo...
B. Strip
C. Prefix Produ...
D. Conveyor Belts
E. Tourists
Codeforces Round 276 (Div. 1)
A. Bits
B. Maximum Value
C. Strange Sorting
D. Kindergarten
E. Sign on Fence
Codeforces Round 275 (Div. 1)
A. Diverse Perm...
B. Interesting ...
C. Game with St...
D. Random Funct...
E. ELCA
Codeforces Round 274 (Div. 1)
D. Parcels
E. Parking Lot
Codeforces Round 272 (Div. 1)
D. Dreamoon and...
E. Dreamoon and...
Codeforces Round 268 (Div. 1)
A. 24 Game
B. Two Sets
C. Hack it!
D. Tree
E. Permanent
Codeforces Round 265 (Div. 1)
A. No to Palind...
B. Restore Cube
C. Substitutes ...
D. World of Dar...
E. The Classic ...
Codeforces Round 263 (Div. 1)
A. Appleman and...
B. Appleman and...
C. Appleman and...
D. Appleman and...
E. Appleman and...
Codeforces Round 260 (Div. 1)
A. Boredom
B. A Lot of Games
C. Civilization
D. Serega and Fun
E. Function
Codeforces Round 259 (Div. 1)
A. Little Pony ...
B. Little Pony ...
C. Little Pony ...
D. Little Pony ...
E. Little Pony ...
Codeforces Round 257 (Div. 1)
A. Jzzhu and Ch...
B. Jzzhu and Ci...
C. Jzzhu and Ap...
D. Jzzhu and Nu...
E. Jzzhu and Sq...
Codeforces Round #FF (Div. 1)
A. DZY Loves Se...
B. DZY Loves Mo...
C. DZY Loves Fi...
D. DZY Loves Games
E. DZY Loves Br...
Codeforces Round 254 (Div. 1)
A. DZY Loves Ph...
B. DZY Loves FFT
C. DZY Loves Co...
D. DZY Loves St...
E. DZY Loves Pl...
Codeforces Round 253 (Div. 1)
A. Borya and Ha...
B. Andrey and P...
C. Artem and Ar...
D. Adam and Tree
E. Gena and Sec...
Codeforces Round 250 (Div. 1)
D. The Child an...
E. The Child an...
Codeforces Round 248 (Div. 1)
D. Nanami's Pow...
E. Furukawa Nag...
Codeforces Round 245 (Div. 1)
A. Xor-tree
B. Working out
C. Guess the Tree
D. Tricky Function
E. Points and S...
Codeforces Round 243 (Div. 1)
A. Sereja and S...
B. Sereja and T...
C. Sereja and T...
D. Sereja and S...
E. Sereja and Sets
RCC 2014 Warmup (Div. 1)
D. Big Problems...
E. Tricky Password
Codeforces Round 240 (Div. 1)
A. Mashmokh and...
B. Mashmokh and...
C. Mashmokh and...
D. Mashmokh and...
E. Mashmokh's D...
Codeforces Round 239 (Div. 1)
A. Triangle
B. Long Path
C. Curious Array
D. Largest Subm...
E. k-d-sequence
Codeforces Round 238 (Div. 1)
D. Hill Climbing
E. Hamming Triples
Codeforces Round 236 (Div. 1)
D. Beautiful Pa...
E. Two Rooted T...
Codeforces Round 233 (Div. 1)
A. Cards
B. Painting The...
C. Tree and Array
D. Instant Mess...
E. Sorting Perm...
Codeforces Round 232 (Div. 1)
A. On Number of...
B. On Sum of Fr...
C. On Changing ...
D. On Sum of Nu...
E. On Iteration...
Codeforces Round 230 (Div. 1)
A. Blocked Points
B. Tower of Hanoi
C. Yet Another ...
D. Three Arrays
E. Deleting Sub...
Codeforces Round 228 (Div. 1)
A. Fox and Box ...
B. Fox and Mini...
C. Fox and Card...
D. Fox and Perf...
E. Fox and Mete...
Codeforces Round 225 (Div. 1)
A. Milking cows
B. Volcanoes
C. Propagating ...
D. Antimatter
E. Vowels
Codeforces Round 223 (Div. 1)
A. Sereja and P...
B. Sereja and Tree
C. Sereja and B...
D. Sereja and C...
E. Sereja and D...
Codeforces Round 222 (Div. 1)
A. Maze
B. Preparing fo...
C. Captains Mode
D. Developing Game
E. Cookie Clicker
Codeforces Round 221 (Div. 1)
A. Divisible by...
B. Maximum Subm...
C. Circling Rou...
D. Tree and Que...
E. Red and Blac...
Codeforces Round 219 (Div. 1)
A. Counting Kan...
B. Counting Rec...
C. Watching Fir...
D. Choosing Sub...
E. Drawing Circ...
Codeforces Round 215 (Div. 1)
A. Sereja and A...
B. Sereja ans A...
C. Sereja and t...
D. Sereja and Sets
E. Sereja and I...
Codeforces Round 213 (Div. 1)
A. Matrix
B. Free Market
C. Beautiful Set
D. Ghd
E. Empty Rectan...
Codeforces Round 210 (Div. 1)
A. Levko and Ar...
B. Levko and Array
C. Levko and St...
D. Levko and Sets
E. Levko and Game
Codeforces Round 207 (Div. 1)
A. Knight Tourn...
B. Xenia and Ha...
C. Compartments
D. Bags and Coins
E. Xenia and St...
Codeforces Round 206 (Div. 1)
A. Vasya and Robot
B. Game with St...
C. Vasya and Be...
D. Transferring...
E. Lucky Number...
Codeforces Round 204 (Div. 1)
A. Jeff and Rou...
B. Jeff and Furik
C. Jeff and Bra...
D. Jeff and Rem...
E. Jeff and Per...
Codeforces Round 202 (Div. 1)
A. Mafia
B. Apple Tree
C. Subset Sums
D. Turtles
E. Pilgrims
Codeforces Round 201 (Div. 1)
A. Alice and Bob
B. Lucky Common...
C. Number Trans...
D. Robot Control
E. Doodle Jump
Codeforces Round 200 (Div. 1)
A. Rational Res...
B. Alternating ...
C. Read Time
D. Water Tree
E. Pumping Stat...
Codeforces Round 198 (Div. 1)
D. Iahub and Xors
E. Candies Game
Codeforces Round 196 (Div. 1)
D. GCD Table
E. Optimize!
Codeforces Round 194 (Div. 1)
A. Secrets
B. Chips
C. Lucky Tickets
D. Characterist...
E. Summer Earnings
Codeforces Round 192 (Div. 1)
A. Purification
B. Biridian Forest
C. Graph Recons...
D. The Evil Tem...
E. Evil
Codeforces Round 190 (Div. 1)
A. Ciel and Robot
B. Ciel and Duel
C. Ciel the Com...
D. Ciel and Fli...
E. Ciel and Gon...
Codeforces Round 189 (Div. 1)
A. Malek Dance ...
B. Psychos in a...
C. Kalila and D...
D. Have You Eve...
E. Ping-Pong
Codeforces Round 188 (Div. 1)
A. Perfect Pair
B. Ants
C. Balance
D. Game with Po...
E. Princess and...
Codeforces Round 187 (Div. 1)
A. Sereja and C...
B. Sereja and P...
C. Sereja and S...
E. Sereja and S...
Codeforces Round 185 (Div. 1)
A. The Closest ...
B. Cats Transport
C. Fetch the Tr...
D. Interval Cubing
E. Biologist
Codeforces Round 183 (Div. 1)
A. Lucky Permut...
B. Rectangle Pu...
C. Minimum Modular
D. Rotatable Nu...
E. Random Ranking
Codeforces Round 182 (Div. 1)
A. Yaroslav and...
B. Yaroslav and...
C. Yaroslav and...
D. Yaroslav and...
E. Yaroslav and...
Codeforces Round 180 (Div. 1)
A. Parity Game
B. Fish Weight
C. Splitting th...
D. Color the Ca...
E. Mystic Carvings
Codeforces Round 179 (Div. 1)
A. Greg and Array
B. Greg and Graph
C. Greg and Fri...
D. Greg and Caves
Codeforces Round 177 (Div. 1)
A. Polo the Pen...
B. Polo the Pen...
C. Polo the Pen...
D. Polo the Pen...
E. Polo the Pen...
Codeforces Round 176 (Div. 1)
B. Shifting
C. Main Sequence
D. Tourists
E. Ladies' Shop
Codeforces Round 174 (Div. 1)
A. Cows and Seq...
B. Cow Program
C. Coin Troubles
D. Cows and Coo...
E. Cow Tennis T...
Codeforces Round 172 (Div. 1)
A. Rectangle Pu...
B. Maximum Xor ...
C. Game on Tree
D. k-Maximum Su...
E. Sequence Tra...
Codeforces Round 170 (Div. 1)
A. Learning Lan...
B. Set of Points
C. Game
D. Google Code Jam
E. Binary Tree ...
Codeforces Round 168 (Div. 1)
A. k-Multiple F...
B. Zero Tree
C. The Last Hole!
D. Lovely Matrix
E. Mirror Room
Codeforces Round 167 (Div. 1)
D. Dima and Figure
E. Dima and Game
Codeforces Round 165 (Div. 1)
A. Magical Boxes
B. Greenhouse E...
C. Flawed Flow
D. Maximum Wate...
E. String Theory
Codeforces Round 162 (Div. 1)
A. Escape from ...
B. Good Sequences
C. Choosing Balls
D. Colorful Stones
E. Roadside Trees
Codeforces Round 160 (Div. 1)
A. Maxim and Di...
B. Maxim and Re...
C. Maxim and Ma...
D. Maxim and In...
E. Maxim and Ca...
Codeforces Round 157 (Div. 1)
A. Little Eleph...
B. Little Eleph...
C. Little Eleph...
D. Little Eleph...
E. Little Eleph...
Codeforces Round 156 (Div. 1)
D. Liars and Serge
E. Lucky Arrays
Codeforces Round 153 (Div. 1)
A. Points on Line
B. Playing with...
D. Two Sets
E. Tree and Table
Codeforces Round 152 (Div. 1)
D. Donkey and S...
E. Endless Matrix
Codeforces Round 150 (Div. 1)
A. The Brand Ne...
B. Hydra
C. Colorado Pot...
D. Cubes
E. Matrix
Codeforces Round 148 (Div. 1)
A. Not Wool Seq...
B. Boring Parti...
C. World Eater ...
D. Tape Program...
E. Meeting Her
Codeforces Round 146 (Div. 1)
A. LCM Challenge
B. Let's Play Osu!
C. Cyclical Quest
D. Graph Game
E. Number Chall...
Codeforces Round 144 (Div. 1)
A. Cycles
B. Table
C. Doe Graphs
D. Fence
E. Quick Tortoise
Codeforces Round 142 (Div. 1)
A. Shifts
B. Planets
C. Triangles
D. Towers
E. Gifts
Codeforces Round 140 (Div. 1)
A. Flying Sauce...
B. Naughty Ston...
C. Anniversary
D. The table
E. Noble Knight...
Codeforces Round 138 (Div. 1)
A. Bracket Sequ...
B. Two Strings
C. Partial Sums
D. Spider
E. Planar Graph
Codeforces Round 136 (Div. 1)
Codeforces Round 134 (Div. 1)
A. Ice Skating
B. Blackboard F...
C. Formurosa
D. Bitonix' Patrol
E. Alien DNA
Codeforces Round 131 (Div. 1)
A. Game
B. Numbers
C. Relay Race
D. Stars
E. Two Permutat...
Codeforces Round 129 (Div. 1)
Codeforces Round 127 (Div. 1)
A. Clear Symmetry
B. Guess That Car!
C. Fragile Bridges
D. Brand New Pr...
E. Thoroughly B...
Codeforces Round 125 (Div. 1)
A. About Bacteria
B. Jumping on W...
C. Delivering C...
D. Cube Snake
E. Gripping Story
Codeforces Round 124 (Div. 1)
A. Lexicographi...
B. Infinite Maze
C. Paint Tree
D. The Next Goo...
E. Opening Portals
Codeforces Round 122 (Div. 1)
A. Cutting Figure
B. Xor
C. Hamming Dist...
D. Two Segments
E. Fibonacci Nu...
Codeforces Round 121 (Div. 1)
A. Dynasty Puzzles
B. Demonstration
C. Fools and Roads
D. Metro Scheme
E. Thwarting De...
Codeforces Round 119 (Div. 1)
A. Permutations
B. AlgoRace
C. Weak Memory
D. BRT Contract
E. Heaven Tour
Codeforces Round 118 (Div. 1)
A. Plant
B. Mushroom Sci...
C. Clever Fat Rat
D. Visit of the...
E. Soap Time! - 2
Codeforces Round 114 (Div. 1)
A. Wizards and ...
B. Wizards and ...
C. Wizards and ...
D. Wizards and ...
E. Wizards and ...
Codeforces Round 110 (Div. 1)
A. Message
B. Suspects
C. Cipher
D. Clues
E. Mrs. Hudson'...
Codeforces Round 109 (Div. 1)
A. Hometask
B. Colliders
C. Double Profiles
D. Flatland Fen...
E. Martian Colony
Codeforces Round 107 (Div. 1)
A. Win or Freeze
B. Quantity of ...
C. Smart Cheater
D. Mission Impa...
E. Freezing wit...
Codeforces Round 104 (Div. 1)
A. Lucky Conver...
B. Lucky Number 2
C. Lucky Subseq...
D. Lucky Pair
E. Lucky Queries
Codeforces Round 102 (Div. 1)
A. Help Farmer
B. Help General
C. Help Caretaker
D. Help Shrek a...
E. Help Greg th...
Codeforces Beta Round 99 (Div.
A. Literature L...
B. Digits Permu...
C. Mushroom Gno...
E. Hellish Cons...
Codeforces Beta Round 97 (Div.
A. Replacement
B. Rectangle an...
C. Zero-One
D. Cycle
E. Weak Subsequ...
Codeforces Beta Round 96 (Div.
A. Turing Tape
B. Piet
C. Logo Turtle
D. Constants in...
E. Bits of merr...