Problemset - Codeforces

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Educational Codeforces Round 150 (Rated for Div. 2)
43:52:11
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Problems

#	Name
1505A	Is it rated - 2 *special problem, implementation, interactive	900	x12889
1546B	AquaMoon and Stolen String interactive, math	1200	x12236
755C	PolandBall and Forest dfs and similar, dsu, graphs, interactive, trees	1300	x10259
1807E	Interview binary search, implementation, interactive	1300	x9014
679A	Bear and Prime 100 constructive algorithms, interactive, math	1400	x10822
1167B	Lost Numbers brute force, divide and conquer, interactive, math	1400	x9416
727C	Guess the Array constructive algorithms, interactive, math	1400	x6048
1425F	Flamingoes of Mystery interactive	1400	x4448
1407C	Chocolate Bunny constructive algorithms, interactive, math, two pointers	1600	x10605
1486C1	Guessing the Greatest (easy version) binary search, interactive	1600	x10442
1520F1	Guess the K-th Zero (Easy version) binary search, interactive	1600	x9512
1698D	Fixed Point Guessing binary search, constructive algorithms, interactive	1600	x7686
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x5723
1479A	Searching Local Minimum binary search, interactive, ternary search	1700	x10136
1543D1	RPD and Rap Sheet (Easy Version) bitmasks, constructive algorithms, interactive, math	1700	x7069
1503B	3-Coloring constructive algorithms, games, interactive	1700	x6489
1621C	Hidden Permutations dfs and similar, interactive, math	1700	x6278
1146C	Tree Diameter bitmasks, graphs, interactive	1700	x3207
1687B	Railway System constructive algorithms, graphs, greedy, interactive, sortings	1700	x3125
1056C	Pick Heroes greedy, implementation, interactive, sortings	1700	x2179
1729E	Guess the Cycle Size interactive, probabilities	1800	x5909
1556D	Take a Guess bitmasks, constructive algorithms, interactive, math	1800	x5522
1534D	Lost Tree constructive algorithms, interactive, trees	1800	x5281
1713D	Tournament Countdown constructive algorithms, greedy, interactive, number theory, probabilities	1800	x5030
1583D	Omkar and the Meaning of Life constructive algorithms, greedy, interactive	1800	x4915
1010B	Rocket binary search, interactive	1800	x4792
1617D1	Too Many Impostors (easy version) constructive algorithms, implementation, interactive	1800	x4168
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x3836
730B	Minimum and Maximum constructive algorithms, interactive	1800	x2272
1486C2	Guessing the Greatest (hard version) binary search, interactive	1900	x7299
1207E	XOR Guessing bitmasks, interactive, math	1900	x5139
1305D	Kuroni and the Celebration constructive algorithms, dfs and similar, interactive, trees	1900	x4440
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x4237
1697D	Guess The String binary search, constructive algorithms, interactive	1900	x3840
1063C	Dwarves, Hats and Extrasensory Abilities binary search, constructive algorithms, geometry, interactive	1900	x2652
952B	A Map of the Cat brute force, interactive	1900	x1831
744B	Hongcow's Game bitmasks, divide and conquer, interactive	1900	x1633
1044B	Intersecting Subtrees dfs and similar, interactive, trees	1900	x1490
1521C	Nastia and a Hidden Permutation constructive algorithms, interactive	2000	x4060
1634D	Finding Zero constructive algorithms, interactive, math	2000	x3908
1451E1	Bitwise Queries (Easy Version) bitmasks, constructive algorithms, interactive, math	2000	x3861
1665D	GCD Guess bitmasks, chinese remainder theorem, constructive algorithms, games, interactive, math, number theory	2000	x3224
1584D	Guess the Permutation binary search, combinatorics, interactive, math	2000	x3209
1103B	Game with modulo binary search, constructive algorithms, interactive	2000	x3066
1624F	Interacdive Problem binary search, constructive algorithms, interactive	2000	x2833
1088D	Ehab and another another xor problem bitmasks, constructive algorithms, implementation, interactive	2000	x2460
1815B	Sum Graph brute force, constructive algorithms, graphs, implementation, interactive, shortest paths, trees	2000	x2267
1033D	Divisors interactive, math, number theory	2000	x2166
843B	Interactive LowerBound brute force, interactive, probabilities	2000	x2012
896B	Ithea Plays With Chtholly binary search, constructive algorithms, games, greedy, interactive	2000	x1906
1019B	The hat binary search, interactive	2000	x1817
862D	Mahmoud and Ehab and the binary string binary search, divide and conquer, interactive	2000	x1580
870D	Something with XOR Queries brute force, interactive, probabilities	2000	x1138
1363D	Guess The Maximums binary search, implementation, interactive, math	2100	x3627
1392E	Omkar and Duck bitmasks, constructive algorithms, interactive, math	2100	x3041
1762D	GCD Queries constructive algorithms, interactive, number theory	2100	x2719
1039B	Subway Pursuit binary search, interactive, probabilities	2100	x2116
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x1845
811D	Vladik and Favorite Game constructive algorithms, dfs and similar, graphs, interactive	2100	x1428
1599H	Hidden Fortress interactive, math	2100	x898
1520F2	Guess the K-th Zero (Hard version) binary search, constructive algorithms, data structures, interactive	2200	x2646
1114E	Arithmetic Progression binary search, interactive, number theory, probabilities	2200	x2497
1535E	Gold Transfer binary search, data structures, dp, greedy, interactive, trees	2200	x2371
1672E	notepad.exe binary search, constructive algorithms, greedy, interactive	2200	x1922
1543D2	RPD and Rap Sheet (Hard Version) brute force, constructive algorithms, interactive, math	2200	x1837
1498E	Two Houses brute force, graphs, greedy, interactive, sortings	2200	x1676
809B	Glad to see you! binary search, interactive	2200	x1389
713B	Searching Rectangles binary search, constructive algorithms, interactive	2200	x1374
1153E	Serval and Snake binary search, brute force, interactive	2200	x1351
1117E	Decypher the String bitmasks, chinese remainder theorem, constructive algorithms, interactive, math	2200	x1347
1155E	Guess the Root brute force, interactive, math	2200	x1284
1666I	Interactive Treasure Hunt brute force, constructive algorithms, geometry, interactive, math	2200	x1231
916D	Jamie and To-do List data structures, interactive, trees	2200	x433
1628C	Grid Xor constructive algorithms, greedy, implementation, interactive, math	2300	x2810
1451E2	Bitwise Queries (Hard Version) bitmasks, constructive algorithms, interactive, math	2300	x2596
1592D	Hemose in ICPC ? binary search, dfs and similar, implementation, interactive, math, number theory, trees	2300	x1984
1282D	Enchanted Artifact constructive algorithms, interactive, strings	2300	x1889
1534E	Lost Array graphs, greedy, interactive, shortest paths	2300	x1662
1254C	Point Ordering constructive algorithms, geometry, interactive, math	2300	x1143
1617D2	Too Many Impostors (hard version) constructive algorithms, implementation, interactive, math	2400	x1531
1779E	Anya's Simultaneous Exhibition constructive algorithms, graphs, greedy, interactive, sortings	2400	x1460
710F	String Set Queries brute force, data structures, hashing, interactive, string suffix structures, strings	2400	x1282
1370F1	The Hidden Pair (Easy Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2400	x1234
1174F	Ehab and the Big Finale constructive algorithms, divide and conquer, graphs, implementation, interactive, trees	2400	x1232
1137D	Cooperative Game constructive algorithms, interactive, number theory	2400	x1170
1286C1	Madhouse (Easy version) brute force, constructive algorithms, interactive, math	2400	x1089
1205C	Palindromic Paths implementation, interactive	2400	x1057
1738F	Connectivity Addicts constructive algorithms, dsu, graphs, greedy, interactive, shortest paths, trees	2400	x1013
835E	The penguin's game binary search, constructive algorithms, interactive	2400	x1013
1673F	Anti-Theft Road Planning bitmasks, constructive algorithms, divide and conquer, greedy, interactive, math	2400	x679
1061F	Lost Root interactive, probabilities	2400	x630
1080F	Katya and Segments Sets data structures, interactive, sortings	2400	x584
1403A	The Potion of Great Power *special problem, 2-sat, binary search, data structures, graphs, interactive, sortings, two pointers	2400	x273
1470C	Strange Shuffle binary search, brute force, constructive algorithms, interactive	2500	x1210
1746E1	Joking (Easy Version) binary search, constructive algorithms, interactive, ternary search	2500	x1166
1100D	Dasha and Chess constructive algorithms, games, interactive	2500	x802
1776C	Library game games, greedy, interactive, sortings	2500	x483
1776I	Spinach Pizza games, geometry, greedy, interactive	2500	x463
1773I	Interactive Factorial Guessing brute force, games, implementation, interactive	2500	x377
1089C	Cactus Search interactive	2500	x354

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