Problemset - Codeforces

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Educational Codeforces Round 176 (Rated for Div. 2)
24:59:21
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Problems

#	Name
1505A	Is it rated - 2 *special problem, implementation, interactive	900	x14945
1546B	AquaMoon and Stolen String interactive, math	1200	x13355
1807E	Interview binary search, implementation, interactive	1300	x14112
755C	PolandBall and Forest dfs and similar, dsu, graphs, interactive, trees	1300	x12991
1867C	Salyg1n and the MEX Game constructive algorithms, data structures, games, greedy, interactive	1300	x11747
679A	Bear and Prime 100 constructive algorithms, interactive, math	1400	x13750
1167B	Lost Numbers brute force, divide and conquer, interactive, math	1400	x12778
2013C	Password Cracking constructive algorithms, interactive, strings	1400	x12567
727C	Guess the Array constructive algorithms, interactive, math	1400	x7797
1425F	Flamingoes of Mystery interactive	1400	x6256
2066A	Object Identification graphs, greedy, implementation, interactive	1400	x5224
1999G1	Ruler (easy version) binary search, interactive	1500	x11780
2001C	Guess The Tree binary search, brute force, dfs and similar, divide and conquer, dsu, greedy, interactive, trees	1500	x11372
1486C1	Guessing the Greatest (easy version) binary search, interactive	1600	x12899
1407C	Chocolate Bunny constructive algorithms, interactive, math, two pointers	1600	x12609
1520F1	Guess the K-th Zero (Easy version) binary search, interactive	1600	x12565
1698D	Fixed Point Guessing binary search, constructive algorithms, interactive	1600	x10058
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x8112
2037E	Kachina's Favorite Binary String dp, greedy, interactive, two pointers	1600	x5969
1479A	Searching Local Minimum binary search, interactive, ternary search	1700	x12132
1999G2	Ruler (hard version) binary search, interactive, ternary search	1700	x8639
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x7879
1543D1	RPD and Rap Sheet (Easy Version) bitmasks, constructive algorithms, interactive, math	1700	x7727
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x7253
1503B	3-Coloring constructive algorithms, games, interactive	1700	x7165
1621C	Hidden Permutations dfs and similar, interactive, math	1700	x7086
1687B	Railway System constructive algorithms, graphs, greedy, interactive, sortings	1700	x3831
1146C	Tree Diameter bitmasks, graphs, interactive	1700	x3776
1056C	Pick Heroes greedy, implementation, interactive, sortings	1700	x2433
1556D	Take a Guess bitmasks, constructive algorithms, interactive, math	1800	x7331
1729E	Guess the Cycle Size interactive, probabilities	1800	x7307
1534D	Lost Tree constructive algorithms, interactive, trees	1800	x6248
1713D	Tournament Countdown constructive algorithms, greedy, interactive, number theory, probabilities	1800	x5850
1583D	Omkar and the Meaning of Life constructive algorithms, greedy, interactive	1800	x5533
1010B	Rocket binary search, interactive	1800	x5338
2032D	Genokraken constructive algorithms, data structures, graphs, greedy, implementation, interactive, trees, two pointers	1800	x5249
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x5193
1617D1	Too Many Impostors (easy version) constructive algorithms, implementation, interactive	1800	x4838
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x3306
730B	Minimum and Maximum constructive algorithms, interactive	1800	x2569
1486C2	Guessing the Greatest (hard version) binary search, interactive	1900	x8888
1207E	XOR Guessing bitmasks, interactive, math	1900	x6162
1305D	Kuroni and the Celebration constructive algorithms, dfs and similar, interactive, trees	1900	x5122
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x4724
1697D	Guess The String binary search, constructive algorithms, interactive	1900	x4600
1991E	Coloring Game constructive algorithms, dfs and similar, games, graphs, greedy, interactive	1900	x4450
2022D1	Asesino (Easy Version) binary search, brute force, constructive algorithms, implementation, interactive	1900	x3250
1063C	Dwarves, Hats and Extrasensory Abilities binary search, constructive algorithms, geometry, interactive	1900	x3117
2038G	Guess One Character constructive algorithms, implementation, interactive	1900	x2300
952B	A Map of the Cat *special problem, brute force, interactive	1900	x2075
744B	Hongcow's Game bitmasks, divide and conquer, interactive	1900	x1804
1044B	Intersecting Subtrees dfs and similar, interactive, trees	1900	x1625
1451E1	Bitwise Queries (Easy Version) bitmasks, constructive algorithms, interactive, math	2000	x4519
1634D	Finding Zero constructive algorithms, interactive, math	2000	x4491
1521C	Nastia and a Hidden Permutation constructive algorithms, interactive	2000	x4423
1665D	GCD Guess bitmasks, chinese remainder theorem, constructive algorithms, games, interactive, math, number theory	2000	x4146
1867E1	Salyg1n and Array (simple version) constructive algorithms, interactive, math	2000	x3948
1584D	Guess the Permutation binary search, combinatorics, interactive, math	2000	x3768
1624F	Interacdive Problem binary search, constructive algorithms, interactive	2000	x3478
1103B	Game with modulo binary search, constructive algorithms, interactive	2000	x3327
1815B	Sum Graph brute force, constructive algorithms, graphs, implementation, interactive, shortest paths, trees	2000	x3189
1088D	Ehab and another another xor problem bitmasks, constructive algorithms, implementation, interactive	2000	x2935
1033D	Divisors interactive, math, number theory	2000	x2473
843B	Interactive LowerBound brute force, interactive, probabilities	2000	x2356
1903E	Geo Game greedy, interactive, math	2000	x2194
896B	Ithea Plays With Chtholly binary search, constructive algorithms, games, greedy, interactive	2000	x2172
1019B	The hat binary search, interactive	2000	x1984
862D	Mahmoud and Ehab and the binary string binary search, divide and conquer, interactive	2000	x1916
870D	Something with XOR Queries brute force, interactive, probabilities	2000	x1241
1919H	Tree Diameter interactive, trees	2000	x152
1363D	Guess The Maximums binary search, implementation, interactive, math	2100	x4142
1762D	GCD Queries constructive algorithms, interactive, number theory	2100	x3825
1392E	Omkar and Duck bitmasks, constructive algorithms, interactive, math	2100	x3620
1856D	More Wrong divide and conquer, interactive	2100	x3394
1039B	Subway Pursuit binary search, interactive, probabilities	2100	x2444
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x2083
811D	Vladik and Favorite Game constructive algorithms, dfs and similar, graphs, interactive	2100	x1799
1599H	Hidden Fortress interactive, math	2100	x1098
1970D1	Arithmancy (Easy) brute force, constructive algorithms, interactive, strings	2100	x729
1867E2	Salyg1n and Array (hard version) constructive algorithms, interactive	2200	x3361
1520F2	Guess the K-th Zero (Hard version) binary search, constructive algorithms, data structures, interactive	2200	x3111
1114E	Arithmetic Progression binary search, interactive, number theory, probabilities	2200	x2949
1535E	Gold Transfer binary search, data structures, dp, greedy, interactive, trees	2200	x2851
1840G1	In Search of Truth (Easy Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2200	x2504
1672E	notepad.exe binary search, constructive algorithms, greedy, interactive	2200	x2322
1543D2	RPD and Rap Sheet (Hard Version) brute force, constructive algorithms, interactive, math	2200	x2042
1498E	Two Houses brute force, graphs, greedy, interactive, sortings	2200	x1987
1918E	ace5 and Task Order constructive algorithms, divide and conquer, implementation, interactive, probabilities, sortings	2200	x1830
809B	Glad to see you! binary search, interactive	2200	x1697
1117E	Decypher the String bitmasks, chinese remainder theorem, constructive algorithms, interactive, math	2200	x1557
1666I	Interactive Treasure Hunt brute force, constructive algorithms, geometry, interactive, math	2200	x1538
1153E	Serval and Snake binary search, brute force, interactive	2200	x1528
713B	Searching Rectangles binary search, constructive algorithms, interactive	2200	x1470
1155E	Guess the Root brute force, interactive, math	2200	x1461
2036G	Library of Magic binary search, constructive algorithms, divide and conquer, interactive, math, number theory	2200	x1346
916D	Jamie and To-do List data structures, interactive, trees	2200	x525
1628C	Grid Xor constructive algorithms, greedy, implementation, interactive, math	2300	x3276
1451E2	Bitwise Queries (Hard Version) bitmasks, constructive algorithms, interactive, math	2300	x3081
1592D	Hemose in ICPC ? binary search, dfs and similar, implementation, interactive, math, number theory, trees	2300	x2372
1282D	Enchanted Artifact constructive algorithms, interactive, strings	2300	x2272

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