AtCoder · Project CodeNet · p02550
AtCoder Beginner Contest 179 - Sequence Sum
Problem solutions · 1 language
Python solution collection · page 27 of 56
Python Competitive Programming Solutions — Page 27
Browse 8,392 competitive programming problems with Python solutions, explanations, and problem links when available. Page 27 of 56 lists problems 3,901–4,050.
Showing problems 3,901–4,050 of 8,392. Every problem in this collection is available across these pages.
AtCoder · Project CodeNet · p02551
AtCoder Beginner Contest 179 - Simplified Reversi
Problem solutions · 1 language
AtCoder · Project CodeNet · p04050
AtCoder Grand Contest 001 - Arrays and Palindrome
Problem solutions · 1 language
AtCoder · Project CodeNet · p04047
AtCoder Grand Contest 001 - BBQ Easy
Problem solutions · 1 language
AtCoder · Project CodeNet · p04051
AtCoder Grand Contest 001 - BBQ Hard
Problem solutions · 1 language
AtCoder · Project CodeNet · p04048
AtCoder Grand Contest 001 - Mysterious Light
Problem solutions · 1 language
AtCoder · Project CodeNet · p04049
AtCoder Grand Contest 001 - Shorten Diameter
Problem solutions · 1 language
AtCoder · Project CodeNet · p04052
AtCoder Grand Contest 001 - Wide Swap
Problem solutions · 1 language
AtCoder · Project CodeNet · p04034
AtCoder Grand Contest 002 - Box and Ball
Problem solutions · 1 language
AtCoder · Project CodeNet · p04037
AtCoder Grand Contest 002 - Candy Piles
Problem solutions · 1 language
AtCoder · Project CodeNet · p04035
AtCoder Grand Contest 002 - Knot Puzzle
Problem solutions · 1 language
AtCoder · Project CodeNet · p04038
AtCoder Grand Contest 002 - Leftmost Ball
Problem solutions · 1 language
AtCoder · Project CodeNet · p04033
AtCoder Grand Contest 002 - Range Product
Problem solutions · 1 language
AtCoder · Project CodeNet · p04022
AtCoder Grand Contest 003 - Anticube
Problem solutions · 1 language
AtCoder · Project CodeNet · p04021
AtCoder Grand Contest 003 - BBuBBBlesort!
Problem solutions · 1 language
AtCoder · Project CodeNet · p04024
AtCoder Grand Contest 003 - Fraction of Fractal
Problem solutions · 1 language
AtCoder · Project CodeNet · p04023
AtCoder Grand Contest 003 - Sequential operations on Sequence
Problem solutions · 1 language
AtCoder · Project CodeNet · p04020
AtCoder Grand Contest 003 - Simplified mahjong
Problem solutions · 1 language
AtCoder · Project CodeNet · p04019
AtCoder Grand Contest 003 - Wanna go back home
Problem solutions · 1 language
AtCoder · Project CodeNet · p04007
AtCoder Grand Contest 004 - AND Grid
Problem solutions · 1 language
AtCoder · Project CodeNet · p04006
AtCoder Grand Contest 004 - Colorful Slimes
Problem solutions · 1 language
AtCoder · Project CodeNet · p04005
AtCoder Grand Contest 004 - Divide a Cuboid
Problem solutions · 1 language
AtCoder · Project CodeNet · p04008
AtCoder Grand Contest 004 - Teleporter
Problem solutions · 1 language
AtCoder · Project CodeNet · p03989
AtCoder Grand Contest 005 - ~K Perm Counting
Problem solutions · 1 language
AtCoder · Project CodeNet · p03991
AtCoder Grand Contest 005 - Many Easy Problems
Problem solutions · 1 language
AtCoder · Project CodeNet · p03987
AtCoder Grand Contest 005 - Minimum Sum
Problem solutions · 1 language
AtCoder · Project CodeNet · p03986
AtCoder Grand Contest 005 - STring
Problem solutions · 1 language
AtCoder · Project CodeNet · p03990
AtCoder Grand Contest 005 - Sugigma: The Showdown
Problem solutions · 1 language
AtCoder · Project CodeNet · p03988
AtCoder Grand Contest 005 - Tree Restoring
Problem solutions · 1 language
AtCoder · Project CodeNet · p03952
AtCoder Grand Contest 006 - Median Pyramid Easy
Problem solutions · 1 language
AtCoder · Project CodeNet · p03954
AtCoder Grand Contest 006 - Median Pyramid Hard
Problem solutions · 1 language
AtCoder · Project CodeNet · p03951
AtCoder Grand Contest 006 - Prefix and Suffix
Problem solutions · 1 language
AtCoder · Project CodeNet · p03953
AtCoder Grand Contest 006 - Rabbit Exercise
Problem solutions · 1 language
AtCoder · Project CodeNet · p03955
AtCoder Grand Contest 006 - Rotate 3x3
Problem solutions · 1 language
AtCoder · Project CodeNet · p03938
AtCoder Grand Contest 007 - Construct Sequences
Problem solutions · 1 language
AtCoder · Project CodeNet · p03939
AtCoder Grand Contest 007 - Pushing Balls
Problem solutions · 1 language
AtCoder · Project CodeNet · p03940
AtCoder Grand Contest 007 - Shik and Game
Problem solutions · 1 language
AtCoder · Project CodeNet · p03937
AtCoder Grand Contest 007 - Shik and Stone
Problem solutions · 1 language
AtCoder · Project CodeNet · p03843
AtCoder Grand Contest 008 - Black Radius
Problem solutions · 1 language
AtCoder · Project CodeNet · p03839
AtCoder Grand Contest 008 - Contiguous Repainting
Problem solutions · 1 language
AtCoder · Project CodeNet · p03841
AtCoder Grand Contest 008 - K-th K
Problem solutions · 1 language
AtCoder · Project CodeNet · p03838
AtCoder Grand Contest 008 - Simple Calculator
Problem solutions · 1 language
AtCoder · Project CodeNet · p03840
AtCoder Grand Contest 008 - Tetromino Tiling
Problem solutions · 1 language
AtCoder · Project CodeNet · p03823
AtCoder Grand Contest 009 - Division into Two
Problem solutions · 1 language
AtCoder · Project CodeNet · p03821
AtCoder Grand Contest 009 - Multiple Array
Problem solutions · 1 language
AtCoder · Project CodeNet · p03822
AtCoder Grand Contest 009 - Tournament
Problem solutions · 1 language
AtCoder · Project CodeNet · p03824
AtCoder Grand Contest 009 - Uninity
Problem solutions · 1 language
AtCoder · Project CodeNet · p03807
AtCoder Grand Contest 010 - Addition
Problem solutions · 1 language
AtCoder · Project CodeNet · p03809
AtCoder Grand Contest 010 - Cleaning
Problem solutions · 1 language
AtCoder · Project CodeNet · p03810
AtCoder Grand Contest 010 - Decrementing
Problem solutions · 1 language
AtCoder · Project CodeNet · p03811
AtCoder Grand Contest 010 - Rearranging
Problem solutions · 1 language
AtCoder · Project CodeNet · p03812
AtCoder Grand Contest 010 - Tree Game
Problem solutions · 1 language
AtCoder · Project CodeNet · p03785
AtCoder Grand Contest 011 - Airport Bus
Problem solutions · 1 language
AtCoder · Project CodeNet · p03786
AtCoder Grand Contest 011 - Colorful Creatures
Problem solutions · 1 language
AtCoder · Project CodeNet · p03788
AtCoder Grand Contest 011 - Half Reflector
Problem solutions · 1 language
AtCoder · Project CodeNet · p03789
AtCoder Grand Contest 011 - Increasing Numbers
Problem solutions · 1 language
AtCoder · Project CodeNet · p03787
AtCoder Grand Contest 011 - Squared Graph
Problem solutions · 1 language
AtCoder · Project CodeNet · p03790
AtCoder Grand Contest 011 - Train Service Planning
Problem solutions · 1 language
AtCoder · Project CodeNet · p03767
AtCoder Grand Contest 012 - AtCoder Group Contest
Problem solutions · 1 language
AtCoder · Project CodeNet · p03770
AtCoder Grand Contest 012 - Colorful Balls
Problem solutions · 1 language
AtCoder · Project CodeNet · p03768
AtCoder Grand Contest 012 - Splatter Painting
Problem solutions · 1 language
AtCoder · Project CodeNet · p03769
AtCoder Grand Contest 012 - Tautonym Puzzle
Problem solutions · 1 language
AtCoder · Project CodeNet · p03747
AtCoder Grand Contest 013 - Ants on a Circle
Problem solutions · 1 language
AtCoder · Project CodeNet · p03746
AtCoder Grand Contest 013 - Hamiltonish Path
Problem solutions · 1 language
AtCoder · Project CodeNet · p03748
AtCoder Grand Contest 013 - Piling Up
Problem solutions · 1 language
AtCoder · Project CodeNet · p03749
AtCoder Grand Contest 013 - Placing Squares
Problem solutions · 1 language
AtCoder · Project CodeNet · p03745
AtCoder Grand Contest 013 - Sorted Arrays
Problem solutions · 1 language
AtCoder · Project CodeNet · p03726
AtCoder Grand Contest 014 - Black and White Tree
Problem solutions · 1 language
AtCoder · Project CodeNet · p03727
AtCoder Grand Contest 014 - Blue and Red Tree
Problem solutions · 1 language
AtCoder · Project CodeNet · p03725
AtCoder Grand Contest 014 - Closed Rooms
Problem solutions · 1 language
AtCoder · Project CodeNet · p03723
AtCoder Grand Contest 014 - Cookie Exchanges
Problem solutions · 1 language
AtCoder · Project CodeNet · p03728
AtCoder Grand Contest 014 - Strange Sorting
Problem solutions · 1 language
AtCoder · Project CodeNet · p03724
AtCoder Grand Contest 014 - Unplanned Queries
Problem solutions · 1 language
AtCoder · Project CodeNet · p03708
AtCoder Grand Contest 015 - A or...or B Problem
Problem solutions · 1 language
AtCoder · Project CodeNet · p03705
AtCoder Grand Contest 015 - A+...+B Problem
Problem solutions · 1 language
AtCoder · Project CodeNet · p03710
AtCoder Grand Contest 015 - Kenus the Ancient Greek
Problem solutions · 1 language
AtCoder · Project CodeNet · p03709
AtCoder Grand Contest 015 - Mr.Aoki Incubator
Problem solutions · 1 language
AtCoder · Project CodeNet · p03707
AtCoder Grand Contest 015 - Nuske vs Phantom Thnook
Problem solutions · 1 language
AtCoder · Project CodeNet · p03689
AtCoder Grand Contest 016 - +/- Rectangle
Problem solutions · 1 language
AtCoder · Project CodeNet · p03688
AtCoder Grand Contest 016 - Colorful Hats
Problem solutions · 1 language
AtCoder · Project CodeNet · p03691
AtCoder Grand Contest 016 - Poor Turkeys
Problem solutions · 1 language
AtCoder · Project CodeNet · p03687
AtCoder Grand Contest 016 - Shrinking
Problem solutions · 1 language
AtCoder · Project CodeNet · p03690
AtCoder Grand Contest 016 - XOR Replace
Problem solutions · 1 language
AtCoder · Project CodeNet · p03665
AtCoder Grand Contest 017 - Biscuits
Problem solutions · 1 language
AtCoder · Project CodeNet · p03668
AtCoder Grand Contest 017 - Game on Tree
Problem solutions · 1 language
AtCoder · Project CodeNet · p03669
AtCoder Grand Contest 017 - Jigsaw
Problem solutions · 1 language
AtCoder · Project CodeNet · p03666
AtCoder Grand Contest 017 - Moderate Differences
Problem solutions · 1 language
AtCoder · Project CodeNet · p03667
AtCoder Grand Contest 017 - Snuke and Spells
Problem solutions · 1 language
AtCoder · Project CodeNet · p03651
AtCoder Grand Contest 018 - Getting Difference
Problem solutions · 1 language
AtCoder · Project CodeNet · p03655
AtCoder Grand Contest 018 - Sightseeing Plan
Problem solutions · 1 language
AtCoder · Project CodeNet · p03652
AtCoder Grand Contest 018 - Sports Festival
Problem solutions · 1 language
AtCoder · Project CodeNet · p03654
AtCoder Grand Contest 018 - Tree and Hamilton Path
Problem solutions · 1 language
AtCoder · Project CodeNet · p03619
AtCoder Grand Contest 019 - Fountain Walk
Problem solutions · 1 language
AtCoder · Project CodeNet · p03617
AtCoder Grand Contest 019 - Ice Tea Store
Problem solutions · 1 language
AtCoder · Project CodeNet · p03618
AtCoder Grand Contest 019 - Reverse and Compare
Problem solutions · 1 language
AtCoder · Project CodeNet · p03620
AtCoder Grand Contest 019 - Shift and Flip
Problem solutions · 1 language
AtCoder · Project CodeNet · p03621
AtCoder Grand Contest 019 - Shuffle and Swap
Problem solutions · 1 language
AtCoder · Project CodeNet · p03622
AtCoder Grand Contest 019 - Yes or No
Problem solutions · 1 language
AtCoder · Project CodeNet · p03464
AtCoder Grand Contest 020 - Ice Rink Game
Problem solutions · 1 language
AtCoder · Project CodeNet · p03465
AtCoder Grand Contest 020 - Median Sum
Problem solutions · 1 language
AtCoder · Project CodeNet · p03466
AtCoder Grand Contest 020 - Min Max Repetition
Problem solutions · 1 language
AtCoder · Project CodeNet · p03463
AtCoder Grand Contest 020 - Move and Win
Problem solutions · 1 language
AtCoder · Project CodeNet · p03431
AtCoder Grand Contest 021 - Ball Eat Chameleons
Problem solutions · 1 language
AtCoder · Project CodeNet · p03427
AtCoder Grand Contest 021 - Digit Sum 2
Problem solutions · 1 language
AtCoder · Project CodeNet · p03430
AtCoder Grand Contest 021 - Reversed LCS
Problem solutions · 1 language
AtCoder · Project CodeNet · p03429
AtCoder Grand Contest 021 - Tiling
Problem solutions · 1 language
AtCoder · Project CodeNet · p03398
AtCoder Grand Contest 022 - Checkers
Problem solutions · 1 language
AtCoder · Project CodeNet · p03393
AtCoder Grand Contest 022 - Diverse Word
Problem solutions · 1 language
AtCoder · Project CodeNet · p03394
AtCoder Grand Contest 022 - GCD Sequence
Problem solutions · 1 language
AtCoder · Project CodeNet · p03395
AtCoder Grand Contest 022 - Remainder Game
Problem solutions · 1 language
AtCoder · Project CodeNet · p03364
AtCoder Grand Contest 023 - Find Symmetries
Problem solutions · 1 language
AtCoder · Project CodeNet · p03366
AtCoder Grand Contest 023 - Go Home
Problem solutions · 1 language
AtCoder · Project CodeNet · p03365
AtCoder Grand Contest 023 - Painting Machines
Problem solutions · 1 language
AtCoder · Project CodeNet · p03363
AtCoder Grand Contest 023 - Zero-Sum Ranges
Problem solutions · 1 language
AtCoder · Project CodeNet · p03346
AtCoder Grand Contest 024 - Backfront
Problem solutions · 1 language
AtCoder · Project CodeNet · p03345
AtCoder Grand Contest 024 - Fairness
Problem solutions · 1 language
AtCoder · Project CodeNet · p03348
AtCoder Grand Contest 024 - Isomorphism Freak
Problem solutions · 1 language
AtCoder · Project CodeNet · p03347
AtCoder Grand Contest 024 - Sequence Growing Easy
Problem solutions · 1 language
AtCoder · Project CodeNet · p03350
AtCoder Grand Contest 024 - Simple Subsequence Problem
Problem solutions · 1 language
AtCoder · Project CodeNet · p03336
AtCoder Grand Contest 025 - Addition and Andition
Problem solutions · 1 language
AtCoder · Project CodeNet · p03334
AtCoder Grand Contest 025 - Choosing Points
Problem solutions · 1 language
AtCoder · Project CodeNet · p03331
AtCoder Grand Contest 025 - Digits Sum
Problem solutions · 1 language
AtCoder · Project CodeNet · p03333
AtCoder Grand Contest 025 - Interval Game
Problem solutions · 1 language
AtCoder · Project CodeNet · p03332
AtCoder Grand Contest 025 - RGB Coloring
Problem solutions · 1 language
AtCoder · Project CodeNet · p03296
AtCoder Grand Contest 026 - Colorful Slimes 2
Problem solutions · 1 language
AtCoder · Project CodeNet · p03299
AtCoder Grand Contest 026 - Histogram Coloring
Problem solutions · 1 language
AtCoder · Project CodeNet · p03297
AtCoder Grand Contest 026 - rng_10s
Problem solutions · 1 language
AtCoder · Project CodeNet · p03298
AtCoder Grand Contest 026 - String Coloring
Problem solutions · 1 language
AtCoder · Project CodeNet · p03300
AtCoder Grand Contest 026 - Synchronized Subsequence
Problem solutions · 1 language
AtCoder · Project CodeNet · p03256
AtCoder Grand Contest 027 - ABland Yard
Problem solutions · 1 language
AtCoder · Project CodeNet · p03254
AtCoder Grand Contest 027 - Candy Distribution Again
Problem solutions · 1 language
AtCoder · Project CodeNet · p03255
AtCoder Grand Contest 027 - Garbage Collector
Problem solutions · 1 language
AtCoder · Project CodeNet · p03257
AtCoder Grand Contest 027 - Modulo Matrix
Problem solutions · 1 language
AtCoder · Project CodeNet · p03234
AtCoder Grand Contest 028 - Chords
Problem solutions · 1 language
AtCoder · Project CodeNet · p03233
AtCoder Grand Contest 028 - Min Cost Cycle
Problem solutions · 1 language
AtCoder · Project CodeNet · p03232
AtCoder Grand Contest 028 - Removing Blocks
Problem solutions · 1 language
AtCoder · Project CodeNet · p03231
AtCoder Grand Contest 028 - Two Abbreviations
Problem solutions · 1 language
AtCoder · Project CodeNet · p03203
AtCoder Grand Contest 029 - Grid game
Problem solutions · 1 language
AtCoder · Project CodeNet · p03200
AtCoder Grand Contest 029 - Irreversible operation
Problem solutions · 1 language
AtCoder · Project CodeNet · p03202
AtCoder Grand Contest 029 - Lexicographic constraints
Problem solutions · 1 language
AtCoder · Project CodeNet · p03201
AtCoder Grand Contest 029 - Powers of two
Problem solutions · 1 language
AtCoder · Project CodeNet · p03188
AtCoder Grand Contest 030 - Coloring Torus
Problem solutions · 1 language
AtCoder · Project CodeNet · p03189
AtCoder Grand Contest 030 - Inversion Sum
Problem solutions · 1 language
AtCoder · Project CodeNet · p03186
AtCoder Grand Contest 030 - Poisonous Cookies
Problem solutions · 1 language
AtCoder · Project CodeNet · p03187
AtCoder Grand Contest 030 - Tree Burning
Problem solutions · 1 language
AtCoder · Project CodeNet · p03098
AtCoder Grand Contest 031 - A Sequence of Permutations
Problem solutions · 1 language
AtCoder · Project CodeNet · p03095
AtCoder Grand Contest 031 - Colorful Subsequence
Problem solutions · 1 language