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

Name Code Successful Submissions Accuracy
Life, the Universe, and Everything TEST 3980 33.1825
Factorial FCTRL 1743 30.2535
ATM HS08TEST 1721 25.5223
Enormous Input Test INTEST 1332 39.9361
Small factorials FCTRL2 954 18.6127
Transform the Expression ONP 556 39.2753
Sums in a Triangle SUMTRIAN 491 30.4206
Turbo Sort TSORT 447 21.3666
Ambiguous Permutations PERMUT2 257 49.8775
Paying up MARCHA1 240 32.1142
The Way to a Friends House Is Never Too Long POINTS 185 18.6441
The Lead Game TLG 173 21.9727
A Very Easy Problem! EASYPROB 166 36.1277
Odd DCE05 165 36.9895
Poker POKER 122 27.5416
Johnny and the Beanstalk MARCHA2 112 26.8323
Permutation Cycles PCYCLE 84 33.8346
Discrepancies in the Voters List VOTERS 77 21.6599
GCD2 GCD2 67 17.9856
Product of divisors D1 59 7.6649
Not a Triangle NOTATRI 58 16.2011
The White Knight E1 53 19.9519
Primality Testing INSOMB1 52 17.4825
Stone Game RESN04 50 51.2605
Nuclear Reactors NUKES 47 31.4208
The Best Box J7 42 58.1395
Sums in a cuboid CUBESUM 39 34.9398
Count the squares D6 37 17.7258
Parenthesis DCE03 30 26.3158
Prime Palindromes PRPALIN 28 23.3333
Exploding Search INSOMA2 28 19.5531
Rational Numbers SNCK04 26 32.5444
CEO Ride INSOMB6 20 15.6977
Healthy dinner party C4 20 23.4848
Sudoku Solver NSUDOKU 19 37.3134
Summing Subsets RESN05 18 22.9885
Golf course F1 17 18.7050
Palindromic Numbers K2 17 10.7345
Nikhils Dungeon NDUNGEON 16 34.2105
Rescue DCE04 15 46.4286
Lost Primes L3 14 28.5714
Sum of pairs PAIRSUM 14 8.2305
A puzzle game H1 12 29.6296
Help the DJ JX 10 45.4545
Forces in the crystal HX 8 33.3333
Plant Location K1 7 14.7059

RECENT COMMENTS

08:56 PM Mar 10th: Himanshu Kumar commented on the wiki article Tutorials: my programs runs in dev c++ but not here what to do
08:46 PM Mar 10th: Dileepkumar commented on Tri-Hexagonal Puzzle: I need another test case that doesn't involve 3 black vertices on the same hexagon...
07:31 PM Mar 10th: Tarun Jain commented on Factorial: Not gettin the programmm wht we have o do?? wht is it..o_0
07:19 PM Mar 10th: rahul agarwal commented on Tri-Hexagonal Puzzle: i m new to coding can someone help me how to approach this problem!! i hav unders...
06:27 PM Mar 10th: Mandar Joshi commented on Hardware Store: @Rahul Gulati could you pls provide a link to the problem on one of the acm judge...
06:17 PM Mar 10th: Gautam verma commented on The Best Tower: How exactly the distance is calculated between a point & a circle? I don't un...
06:16 PM Mar 10th: Rahul Gulati commented on Hardware Store: The test data is incorrect. This is originally an ACM Problem from seoul regionals...
05:53 PM Mar 10th: tommy commented on Poker: mine solution is correct on my machine but its giving here...whats the matter?? c...
03:43 PM Mar 10th: Suyash Gupta commented on Destroy the Enemy: can anybody tell something about this competition??
02:43 PM Mar 10th: Lucky commented on Super Factor Sum: @khyatigupta: You have to take input as long as it is given.