Ladder · Difficulty 2
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0% complete162 left
Labels rank each problem against the rest of this ladder, by how many people solved it relative to problems of the same rating and age — not by its rating, which is already in its own column.
Ranked by how gentle a way in each problem is for this ladder. Track a handle to lift the topics you run behind on.
1String Task1000very easy2Way Too Long Words800very easy3Young Physicist1000very easy4Team800very easy5Chat room1000very easy6Lucky Division1000very easy7Bit++800very easy8Beautiful Matrix800very easy9Petya and Strings800very easy10Boy or Girl800very easy11Dragons1000very easy12Helpful Maths800very easy13Translation800very easy14Word Capitalization800very easy15Stones on the Table800very easy16Word800very easy17Vanya and Lanterns1200very easy18Nearly Lucky Number800very easy19Expression1000very easy20Football900very easy21Cheap Travel1200very easy22Football1000very easy23Tram800very easy24Xenia and Ringroad1000very easy25Beautiful Year800very easy26Queue at the School800very easy27Pangram800very easy28Presents800very easy29Gravity Flip900very easy30Drinks800very easy31Magnets800very easy32Fence1100very easy33I Wanna Be the Guy800very easy34Twins900very easy35Flipping Game1200easy36Is your horseshoe on the other hoof?800easy37Ultra-Fast Mathematician800easy38Even Odds900easy39Kuriyama Mirai's Stones1200easy40Ice Skating1200easy41Fox And Snake800easy42Anton and Letters800easy43HQ9+900easy44Arrival of the General800easy45The number of positions1000easy46Ilya and Queries1100easy47Borze800easy48Next Test1200easy49Laptops1100easy50Two Bags of Potatoes1200easy51Insomnia cure800easy52Fancy Fence1100easy53Sereja and Suffixes1100easy54Petr and Book1000easy55Sereja and Dima800easy56Dubstep900easy57Amusing Joke800easy58Dreamoon and Stairs1000easy59Present from Lena1000easy60Soft Drinking800easy61Sale900easy62I_love_\%username\%800easy63k-String1000easy64Effective Approach1100easy65Puzzles900easy66Sum of Digits1000easy67Jzzhu and Children100068Parallelepiped110069Pashmak and Garden120070Life Without Zeros100071Free Cash100072DZY Loves Chessboard120073Choosing Teams80074Little Elephant and Bits110075Supercentral Point100076Vanya and Cubes80077Building Permutation120078Panoramix's Prediction80079Cinema Line110080Shooshuns and Sequence 120081Ilya and Bank Account90082Jeff and Digits100083Vasya and Socks90084Rank List110085Hungry Sequence120086Dima and Friends100087Array110088Caisa and Pylons110089Lucky Sum of Digits100090Domino120091Yaroslav and Permutations110092Letter110093Comparing Strings110094Reconnaissance 280095Airport110096Big Segment110097Perfect Permutation80098TL120099Little Elephant and Function1000hard100Counterexample 1100hard101IQ Test1100hard102Business trip900hard103Little Pony and Sort by Shift1200hard104Fedya and Maths1200hard105Party900hard106Unlucky Ticket1100hard107Sail1200hard108Find Marble1200hard109Magic Numbers900hard110Permutation1000hard111Cards with Numbers1200hard112System of Equations800hard113Candy Bags1000hard114Little Pigs and Wolves1100hard115DZY Loves Strings1000hard116Xenia and Divisors1200hard117Playing with Paper1100hard118Lights Out900hard119Kitahara Haruki's Gift1100hard120Appleman and Easy Task1000hard121Boys and Girls1100hard122Roma and Changing Signs1200hard123Pythagorean Theorem II1200hard124Escape from Stones1200hard125The Fibonacci Segment1100hard126Slightly Decreasing Permutations1100hard127Lucky Sum1100hard128Contest900hard129Cakeminator800hard130Hexadecimal's theorem900hard131Lunch Rush900very hard132Giga Tower1100very hard133Little Elephant and Chess1000very hard134Watching a movie1000very hard135Shower Line1200very hard136Cookies900very hard137Simple Molecules1200very hard138Mike and Fax1100very hard139Cupboards800very hard140Little Elephant and Rozdil900very hard141Caisa and Sugar1200very hard142Chips800very hard143Vasily the Bear and Triangle1000very hard144Set of Strings1100very hard145Sereja and Array1200very hard146Inbox (100500)1000very hard147Fixed Points1100very hard148Vanya and Cards less travelled800very hard149Coder less travelled800very hard150Minimum Difficulty less travelled900very hard151Heads or Tails less travelled1100very hard152Little Pony and Crystal Mine less travelled800very hard153Marks less travelled900very hard154Blackjack less travelled800very hard155Levko and Table less travelled800very hard156Bicycle Chain less travelled900very hard157Fox and Cross less travelled1100very hard158DZY Loves Hash less travelled800very hard159inc ARG less travelled900very hard160Wizards and Demonstration less travelled900very hard161Collecting Beats is Fun less travelled900very hard162Dividing Orange less travelled900very hard