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27DRing Road 222002-sat, dfs and similar, dsu27ENumber With The Given Amount Of Divisors2000brute force, dp, number theory280BMaximum Xor Secondary1800data structures, implementation, two pointers280CGame on Tree2200implementation, math, probabilities281BNearest Fraction1700brute force, implementation, two pointers284ACows and Primitive Roots1400implementation, math, number theory285ASlightly Decreasing Permutations1100greedy, implementation285CBuilding Permutation1200greedy, implementation, sortings285DPermutation Sum1900bitmasks, combinatorics, dp289BPolo the Penguin and Matrix1400brute force, dp, implementation291DParallel Programming1600*special, greedy295BGreg and Graph1700dp, graphs, shortest paths295CGreg and Friends2100combinatorics, dp, graphs295DGreg and Caves2400combinatorics, dp2BThe least round way2000dp, math300BCoach1500brute force, dfs and similar, graphs300DPainting Square2300dp, fft300EEmpire Strikes Back2300binary search, math, number theory304APythagorean Theorem II1200brute force, math308BContext Advertising2100dp, two pointers311BCats Transport2400data structures, dp314BSereja and Periods2000binary search, dfs and similar, strings314CSereja and Subsequences2000data structures, dp318BStrings of Power1300implementation, strings, two pointers320BPing-Pong (Easy Version)1500dfs and similar, graphs321ACiel and Robot1700binary search, implementation, math321BCiel and Duel1900dp, flows, greedy321CCiel the Commander2100constructive algorithms, dfs and similar, divide and conquer325BStadium and Games1800binary search, math329APurification1500constructive algorithms, greedy329BBiridian Forest1500dfs and similar, shortest paths32CFlea1700math339CXenia and Weights1700constructive algorithms, dfs and similar, dp339DXenia and Bit Operations1700data structures, trees342AXenia and Divisors1200greedy, implementation342BXenia and Spies1500brute force, greedy, implementation342DXenia and Dominoes2100bitmasks, dfs and similar, dp342EXenia and Tree2400data structures, divide and conquer, trees343ARational Resistance1600math, number theory343BAlternating Current1600data structures, greedy, implementation343CRead Time1900binary search, greedy, two pointers343DWater Tree2100data structures, dfs and similar, graphs346AAlice and Bob1600games, math, number theory346BLucky Common Subsequence2000dp, strings346CNumber Transformation II2200greedy, math347BFixed Points1100brute force, implementation, math353ADomino1200implementation, math353BTwo Heaps1900combinatorics, constructive algorithms, greedy353CFind Maximum1600implementation, math, number theory353DQueue2000constructive algorithms, dp
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