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1494EA-Z Graph2400constructive algorithms, data structures, graphs1498BBox Fitting1300binary search, bitmasks, data structures1498CPlanar Reflections1600brute force, data structures, dp1498DBananas in a Microwave2200dfs and similar, dp, graphs1498ETwo Houses2200brute force, graphs, greedy1500AGoing Home1800brute force, hashing, implementation1500BTwo chandeliers2200binary search, brute force, chinese remainder theorem1504BFlip the Bits1200constructive algorithms, greedy, implementation1505ECakewalk1800*special, greedy, implementation1505FMath2200*special, math1509BTMT Document1100greedy1509CThe Sports Festival1800dp, greedy1511BGCD Length1100constructive algorithms, math, number theory1511CYet Another Card Deck1100brute force, data structures, implementation1511DMin Cost String1600brute force, constructive algorithms, graphs1511EColorings and Dominoes2100combinatorics, dp, greedy1515BPhoenix and Puzzle1000brute force, geometry, math1515CPhoenix and Towers1400constructive algorithms, data structures, greedy1515DPhoenix and Socks1500greedy, sortings, two pointers1515EPhoenix and Computers2200combinatorics, dp, math1519CBerland Regional1400brute force, data structures, greedy1519DMaximum Sum of Products1600brute force, dp, implementation1520DSame Differences1200data structures, hashing, math1520EArranging The Sheep1400greedy, math1520F1Guess the K-th Zero (Easy version)1600binary search, interactive1520F2Guess the K-th Zero (Hard version)2200binary search, constructive algorithms, data structures1520GTo Go Or Not To Go?2200brute force, dfs and similar, graphs1528AParsa's Humongous Tree1600dfs and similar, divide and conquer, dp1528BKavi on Pairing Duty1700combinatorics, dp, math1528CTrees of Tranquillity2300data structures, dfs and similar, greedy1529BSifid and Strange Subsequences1100greedy, math, sortings152BSteps1300binary search, implementation1530CPursuit1200binary search, brute force, greedy1530DSecret Santa1600constructive algorithms, flows, graphs1530EMinimax2100constructive algorithms, greedy, strings1534BHistogram Ugliness1100greedy, implementation, math1534CLittle Alawn's Puzzle1300combinatorics, dp, dsu1534DLost Tree1800constructive algorithms, interactive, trees1534ELost Array2300graphs, greedy, interactive1535CUnstable String1400binary search, dp, greedy1535DPlayoff Tournament1800data structures, dfs and similar, dp1535EGold Transfer2200binary search, data structures, dp1538CNumber of Pairs1300binary search, data structures, math1538DAnother Problem About Dividing Numbers1700constructive algorithms, math, number theory1538FInteresting Function1500binary search, dp, math1538GGift Set2100binary search, greedy, math1542BPlus and Multiply1500constructive algorithms, math, number theory1542CStrange Function1600math, number theory1542DPriority Queue2200combinatorics, dp, implementation1542E1Abnormal Permutation Pairs (easy version)2400combinatorics, dp, fft
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