Home » Practice

Try your hand at one of the practice problems, and submit your solution in the language of your choice (our judge accepts solutions in over 35+ languages). Receive points, and move up through the CodeChef ranks. Get better, and better prepare yourself for the competitions

Previous 1  2 Next >
Name Code Successful Submissions Accuracy
   Bytelandian gold coins COINS 1875 12.67
   Prime Generator PRIME1 1005 10.92
   Marbles MARBLES 793 20.17
   The Next Palindrome PALIN 463 8.19
   Array Transform ARRAYTRM 447 23.81
   Stepford Houses INSOMA3 420 18.13
   Mixtures MIXTURES 273 24.39
   Flipping Coins FLIPCOIN 234 8.69
   Pouring water POUR1 166 15.71
   Play on Words WORDS1 161 9.97
   The Rise and Fall of Power MARCHA4 134 5.05
   Money Matters MONEY 113 13.56
   Buttons BUTTONS 107 8.15
   XAndOr INSOMA5 100 32.16
   Name Chopping INSOMA4 68 18.89
   Multiples of 3 MULTQ3 62 5.93
   Adding Fractions ADDFRAC 58 15.17
   The Sports Stadium STADIUM 56 20.00
   Stable Marriage Problem STABLEMP 55 29.00
   Sphere in a tetrahedron TETRA 53 57.00
   AND Rounds RESN01 49 15.92
   Domain Dilemma DDILEMMA 45 9.66
   The LCS Problem Revisited J2 43 24.68
   A Home for Chef CHEFHOME 43 37.58
   Rotate the String ROTSTRNG 41 9.80
   Pleasing Chief CHIEFETT 39 20.21
   Squirrel and chestnut SQUIRREL 37 14.25
   Collect the Chocolate Chips TKCHOCS 37 35.61
   Help the soldier SOLDIER 35 14.53
   The Matrix Game SNCK01 31 30.60
   Monitoring Madness MMADNESS 30 7.29
   Tautology TAUT 27 34.59
   Preparing Dishes PREPARE 25 23.44
   Zeta-Nim Game TAKEAWAY 25 43.88
   Equation Solver EQUATIO 25 31.87
   Squash the Bugs B5 24 15.38
   Angry Chef - Crispy Chips KCHIPS 24 21.83
   Sum of numbers NUMSUM 22 2.06
   The N Queens Puzzle Revisited J3 22 38.79
   Logging Game LOGGERS 22 46.88
   Ciel and Quiz Game CIELQUIZ 22 20.16
   Birthday Gift CHEFGIFT 21 28.46
   Box and Ball System BBSYSTEM 20 23.40
   Kayaks H2 19 17.12
   Fetching Cooking Tools TOOLS 19 29.73
   Bonus ACMKANPB 19 13.93
   Restore the Recipe RSRECIPE 19 24.74
   Just a simple sum H4 18 7.74
   Ripple-Carry Adder RIPPLE 18 20.18
   Parallel Computing PARALLEL 18 38.67
   Divisible Pairs DIVPAIR 18 21.60
   Grouping Chefs GROUPING 17 28.00
   Selection for Training Camps TRAINING 16 22.99
   The Traveling Photographer PHOTOS 15 30.77
   K-Unique Sequence KUNIQUE 15 24.14
   N Knights Problem KNIGHTS 15 32.91
   New Restaurant NEWREST 15 25.81
   Colorful Chain COLCHAIN 15 32.20
   Crease Painting PAINTING 15 28.77
   Bombing BOMBING 14 14.58
   Chess Pushing Game CHESSGM 14 37.50
   Ciel and Eggs STREGGS 14 27.45
   Soccer League M3 13 13.08
   Longest Arithmetic Progressions ARITHPR 13 23.08
   Repeated String REPSTR 13 26.15
   Little Elephant and Median MEDIAN 13 13.59
   Careful Calculation CAREFUL 13 40.00
   Little Elephant and Swapping LUCKYSWP 13 34.88
   Choosing Cook Off Problems COOKOFF 12 21.31
   Lucky Sum LUCKY3 12 57.58
   Palindrome Palindrome PALIPALI 11 13.91
   Mean Mean Medians MEANMEDI 11 23.96
   Ciel and Battle Arena CIELBTL 11 40.91
   SudokuX J1 10 22.22
   Quadratic Equations E4 10 15.15
   The Grand Cook Off COOKOFF2 10 36.11
   PDS Number PDSNUM 10 30.00
   Target Practice TARPRACT 10 14.10
   Remys last tour FALLDOWN 10 30.43
   Best Buggy Ratings TMRATING 9 54.17
   Lights Off E2 8 38.10
   Closest Ranking VOTING 8 32.26
   Newspaper Puzzle PUZZLES 8 36.36
   Integer Sequences SEQUENCE 8 34.78
   Restock RESTOCK 8 33.93
   Graph on a Plane GRAPLANE 8 23.53
   Moving between Floors FLOORSMV 8 39.47
   Battleship V B3 7 15.09
   An interesting subsequence C5 7 4.55
   The Lucky Draw D2 7 5.26
   A Bowling Game G1 7 30.77
   A Coin Game G3 7 18.42
   Head office building BUILDING 7 21.62
   Trees Again TREES 7 22.22
   Squares Game SQUAGAME 7 16.07
   The Postal Service POSTAL 7 26.67
   First non-Palindrome NONPALIN 7 24.44
   Little Elephant and Filling LUCKFILL 7 12.31
   The Cursed Room MMATCH 6 20.29
   The powerful sum C2 6 5.00
Previous 1  2 Next >

RECENT ACTIVITY:

Loading Recent Activity for submissions...