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> zei20241012 · 335 of 335 solved problems · arena profile

• 12002178C · First or SecondDec 2025
• 10001883C · RaspberriesDec 2025
• 9002178B · Impost or SusDec 2025
• 8002178A · Yes or YesDec 2025
• 10001913B · Swap and DeleteDec 2025
• 11002179C · Blackslex and Number TheoryDec 2025
• 8002179B · Blackslex and ShoweringDec 2025
• 8002179A · Blackslex and PasswordDec 2025
• 11001904B · Collecting GameDec 2025
• 1500580C · Kefa and ParkDec 2025
• 11001914C · QuestsDec 2025
• 8002173A · Sleeping Through ClassesDec 2025
• 11001917B · Erase First or Second LetterNov 2025
• 8002158A · SuspensionNov 2025
• 13001366B · ShuffleNov 2025
• 10002164B · Even Modulo PairNov 2025
• 10001704B · Luke is a FoodieNov 2025
• 10001831B · Array mergingNov 2025
• 10001744C · Traffic LightNov 2025
• 11002171C1 · Renako Amaori and XOR Game (easy version)Nov 2025
• 9002171B · Yuu Koito and Minimum Absolute SumNov 2025
• 8002171A · Shizuku Hoshikawa and Farm LegsNov 2025
• 10001725B · Basketball TogetherNov 2025
• 8002166A · Same DifferenceNov 2025
• 1400550B · Preparing OlympiadNov 2025
• 12001097B · Petr and a Combination LockNov 2025
• 10001791D · Distinct SplitNov 2025
• ?101257D · !HasanNov 2025
• 10001840C · Ski ResortNov 2025
• 10001765M · Minimum LCMNov 2025
• 10002167D · Yet Another Array ProblemOct 2025
• 8002167C · Isamatdin and His Magic Wand!Oct 2025
• 8002167B · Your NameOct 2025
• 8002167A · Square?Oct 2025
• 10002156B · Strange MachineOct 2025
• 8002156A · Pizza TimeOct 2025
• 8002154A · NotelockOct 2025
• 15001301B · Motarack's BirthdayOct 2025
• 8001301A · Three StringsOct 2025
• 10002162B · Beautiful StringOct 2025
• 11002162C · Beautiful XOROct 2025
• 8002162A · Beautiful AverageOct 2025
• 11002160B · Distinct ElementsOct 2025
• 8002160A · MEX PartitionOct 2025
• 13002145C · Monocarp's StringOct 2025
• 9001850D · Balanced RoundOct 2025
• 10002145B · Deck of CardsOct 2025
• 8002145A · Candies for NephewsOct 2025
• 9002149C · MEX roseSept 2025
• 8002149B · Unconventional PairsSept 2025