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1856CTo Become Max1600binary search, brute force, data structures1856DMore Wrong2100divide and conquer, interactive1856E1PermuTree (easy version)1800dfs and similar, dp, trees1857BMaximum Rounding1100greedy, implementation, math1857CAssembly via Minimums1200greedy, sortings1857DStrong Vertices1300math, sortings, trees1857EPower of Points1500math, sortings1857FSum and Product1600binary search, data structures, math1857GCounting Graphs2000combinatorics, divide and conquer, dsu1862CFlower City Fence1100binary search, data structures, implementation1862DIce Cream Balls1300binary search, combinatorics, constructive algorithms1862EKolya and Movie Theatre1600constructive algorithms, data structures, greedy1862FMagic Will Save the World1800binary search, bitmasks, brute force1862GThe Great Equalizer2000binary search, data structures, math1863BSplit Sort1100greedy, math, sortings1863CMEX Repetition1100implementation, math1863DTwo-Colored Dominoes1400constructive algorithms, greedy1863ESpeedrun2100brute force, dfs and similar, dp1866BBattling with Numbers1400combinatorics, math, number theory1866CCompletely Searching for Inversions1900dfs and similar, dp, graphs1866DDigital Wallet2300dp, greedy1866GGrouped Carriages2100binary search, data structures, dp1866IImagination Castle2300dp, games, two pointers1866LLihmuf Balling2400binary search, brute force, math1866MMighty Rock Tower2400brute force, combinatorics, dp1867CSalyg1n and the MEX Game1300constructive algorithms, data structures, games1867DCyclic Operations1800brute force, constructive algorithms, dfs and similar1867E1Salyg1n and Array (simple version)2000constructive algorithms, interactive, math1873EBuilding an Aquarium1100binary search, sortings1873FMoney Trees1300binary search, greedy, math1873GABBC or BACB1500constructive algorithms, greedy1873HMad City1700dfs and similar, dsu, games1877CJoyboard1200math, number theory187APermutations1500greedy187BAlgoRace1800dp, shortest paths1882BSets and Union1300bitmasks, brute force, constructive algorithms1882CCard Game1500brute force, greedy1882DTree XOR1900bitmasks, dfs and similar, dp1882E1Two Permutations (Easy Version)2400brute force, constructive algorithms, greedy1886BFear of the Dark1200binary search, geometry, math1886DMonocarp and the Set2100combinatorics, data structures, math1886EI Wanna be the Team Leader2400bitmasks, constructive algorithms, dp1893AAnonymous Informant1400brute force, dfs and similar, graphs1893BNeutral Tonality1700constructive algorithms, greedy, sortings1893CFreedom of Choice2000brute force, greedy, implementation1896CMatching Arrays1400binary search, constructive algorithms, greedy1896DOnes and Twos1700binary search, data structures, divide and conquer1902BGetting Points1100binary search, brute force, greedy1902CInsert and Equalize1300brute force, constructive algorithms, greedy1902DRobot Queries1900binary search, data structures, dp
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