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1665DGCD Guess2000bitmasks, chinese remainder theorem, constructive algorithms1669E2-Letter Strings1200data structures, math, strings1669FEating Candies1100binary search, data structures, greedy1669HMaximal AND1300bitmasks, greedy, math166ARank List1100binary search, implementation, sortings166CMedian1500greedy, math, sortings166ETetrahedron1500dp, math, matrices1670CWhere is the Pizza?1400data structures, dfs and similar, dsu1670DVery Suspicious1700binary search, brute force, geometry1670EHemose on the Tree2200bitmasks, constructive algorithms, dfs and similar1670FJee, You See?2400bitmasks, combinatorics, dp1671BConsecutive Points Segment1000brute force, math, sortings1671CDolce Vita1200binary search, brute force, greedy1671DInsert a Progression1600brute force, constructive algorithms, greedy1671EPreorder2100combinatorics, divide and conquer, dp1674EBreaking the Wall2000binary search, brute force, constructive algorithms1674FDesktop Rearrangement1800data structures, greedy, implementation1674GRemove Directed Edges2000dfs and similar, dp, graphs1675DVertical Paths1300graphs, implementation, trees1675EReplace With the Previous, Minimize1500dsu, greedy, strings1675FVlad and Unfinished Business1800dfs and similar, dp, greedy1675GSorting Pancakes2300dp1679DToss a Coin to Your Graph...1900binary search, dfs and similar, dp1679ETypical Party in Dorm2400bitmasks, combinatorics, dp167AWizards and Trolleybuses1600implementation, math167BWizards and Huge Prize1800dp, math, probabilities167CWizards and Numbers2300games, math1680CBinary String1600binary search, greedy, strings1680DDog Walking2400brute force, greedy, math1680EMoving Chips2000bitmasks, dp, greedy1681DRequired Length1700brute force, dfs and similar, dp1681FUnique Occurrences2300data structures, dfs and similar, divide and conquer1684CColumn Swapping1400brute force, constructive algorithms, greedy1684DTraps1700constructive algorithms, greedy, sortings1684EMEX vs DIFF2100binary search, brute force, constructive algorithms1685ACircular Local MiniMax1100constructive algorithms, greedy, sortings1685BLinguistics2000greedy, implementation, sortings1688CManipulating History1700constructive algorithms, greedy, strings1690DBlack and White Stripe1000implementation, two pointers1690EPrice Maximization1500binary search, greedy, math1690FShifting String1700graphs, math, number theory1690GCount the Trains2000binary search, data structures, greedy1694BParanoid String1200constructive algorithms, greedy1698DFixed Point Guessing1600binary search, constructive algorithms, interactive1698EPermutationForces II2300brute force, combinatorics, greedy1699CThe Third Problem1700combinatorics, constructive algorithms, math1699DAlmost Triple Deletions2300data structures, dp, greedy16CMonitor1800binary search, number theory16EFish1900bitmasks, dp, probabilities1701CSchedule Management1400binary search, greedy, implementation
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