Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
3 days
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Before contest
Codeforces Round 941 (Div. 2)
3 days
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Problems

#	Name
1505A	Is it rated - 2 *special problem, implementation, interactive	900	x13959
1546B	AquaMoon and Stolen String interactive, math	1200	x12818
679A	Bear and Prime 100 constructive algorithms, interactive, math	1400	x12263
1807E	Interview binary search, implementation, interactive	1300	x11761
1486C1	Guessing the Greatest (easy version) binary search, interactive	1600	x11584
755C	PolandBall and Forest dfs and similar, dsu, graphs, interactive, trees	1300	x11387
1407C	Chocolate Bunny constructive algorithms, interactive, math, two pointers	1600	x11372
1479A	Searching Local Minimum binary search, interactive, ternary search	1700	x11094
1520F1	Guess the K-th Zero (Easy version) binary search, interactive	1600	x10870
1867C	Salyg1n and the MEX Game constructive algorithms, data structures, games, greedy, interactive	1300	x10490
1167B	Lost Numbers brute force, divide and conquer, interactive, math	1400	x10486
1698D	Fixed Point Guessing binary search, constructive algorithms, interactive	1600	x8631
1486C2	Guessing the Greatest (hard version) binary search, interactive	1900	x8102
1543D1	RPD and Rap Sheet (Easy Version) bitmasks, constructive algorithms, interactive, math	1700	x7421
1797C	Li Hua and Chess constructive algorithms, greedy, interactive	1600	x7186
727C	Guess the Array constructive algorithms, interactive, math	1400	x6871
1503B	3-Coloring constructive algorithms, games, interactive	1700	x6830
1621C	Hidden Permutations dfs and similar, interactive, math	1700	x6717
1729E	Guess the Cycle Size interactive, probabilities	1800	x6705
1556D	Take a Guess bitmasks, constructive algorithms, interactive, math	1800	x6452
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6432
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x5932
1534D	Lost Tree constructive algorithms, interactive, trees	1800	x5749
1207E	XOR Guessing bitmasks, interactive, math	1900	x5592
1713D	Tournament Countdown constructive algorithms, greedy, interactive, number theory, probabilities	1800	x5422
1583D	Omkar and the Meaning of Life constructive algorithms, greedy, interactive	1800	x5222
1425F	Flamingoes of Mystery interactive	1400	x5164
1010B	Rocket binary search, interactive	1800	x5060
1305D	Kuroni and the Celebration constructive algorithms, dfs and similar, interactive, trees	1900	x4709
1780D	Bit Guessing Game binary search, bitmasks, constructive algorithms, interactive	1800	x4627
1617D1	Too Many Impostors (easy version) constructive algorithms, implementation, interactive	1800	x4516
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x4360
1521C	Nastia and a Hidden Permutation constructive algorithms, interactive	2000	x4272
1697D	Guess The String binary search, constructive algorithms, interactive	1900	x4250
1634D	Finding Zero constructive algorithms, interactive, math	2000	x4215
1451E1	Bitwise Queries (Easy Version) bitmasks, constructive algorithms, interactive, math	2000	x4180
1363D	Guess The Maximums binary search, implementation, interactive, math	2100	x3822
1665D	GCD Guess bitmasks, chinese remainder theorem, constructive algorithms, games, interactive, math, number theory	2000	x3673
1584D	Guess the Permutation binary search, combinatorics, interactive, math	2000	x3510
1867E1	Salyg1n and Array (simple version) constructive algorithms, interactive, math	2000	x3488
1687B	Railway System constructive algorithms, graphs, greedy, interactive, sortings	1700	x3473
1146C	Tree Diameter bitmasks, graphs, interactive	1700	x3404
1762D	GCD Queries constructive algorithms, interactive, number theory	2100	x3269
1392E	Omkar and Duck bitmasks, constructive algorithms, interactive, math	2100	x3234
1103B	Game with modulo binary search, constructive algorithms, interactive	2000	x3165
1624F	Interacdive Problem binary search, constructive algorithms, interactive	2000	x3163
1628C	Grid Xor constructive algorithms, greedy, implementation, interactive, math	2300	x3068
1856D	More Wrong divide and conquer, interactive	2100	x3061
1867E2	Salyg1n and Array (hard version) constructive algorithms, interactive	2200	x2956
1520F2	Guess the K-th Zero (Hard version) binary search, constructive algorithms, data structures, interactive	2200	x2885
1846F	Rudolph and Mimic constructive algorithms, implementation, interactive	1800	x2855
1815B	Sum Graph brute force, constructive algorithms, graphs, implementation, interactive, shortest paths, trees	2000	x2825
1451E2	Bitwise Queries (Hard Version) bitmasks, constructive algorithms, interactive, math	2300	x2823
1063C	Dwarves, Hats and Extrasensory Abilities binary search, constructive algorithms, geometry, interactive	1900	x2786
1114E	Arithmetic Progression binary search, interactive, number theory, probabilities	2200	x2768
1088D	Ehab and another another xor problem bitmasks, constructive algorithms, implementation, interactive	2000	x2754
1535E	Gold Transfer binary search, data structures, dp, greedy, interactive, trees	2200	x2626
730B	Minimum and Maximum constructive algorithms, interactive	1800	x2375
1056C	Pick Heroes greedy, implementation, interactive, sortings	1700	x2311
1033D	Divisors interactive, math, number theory	2000	x2302
1039B	Subway Pursuit binary search, interactive, probabilities	2100	x2273
1840G1	In Search of Truth (Easy Version) constructive algorithms, interactive, math, meet-in-the-middle, probabilities	2200	x2209
1592D	Hemose in ICPC ? binary search, dfs and similar, implementation, interactive, math, number theory, trees	2300	x2156
843B	Interactive LowerBound brute force, interactive, probabilities	2000	x2131
1672E	notepad.exe binary search, constructive algorithms, greedy, interactive	2200	x2089
1282D	Enchanted Artifact constructive algorithms, interactive, strings	2300	x2054
896B	Ithea Plays With Chtholly binary search, constructive algorithms, games, greedy, interactive	2000	x2047
952B	A Map of the Cat brute force, interactive	1900	x1978
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x1949
1543D2	RPD and Rap Sheet (Hard Version) brute force, constructive algorithms, interactive, math	2200	x1940
1375F	Integer Game constructive algorithms, games, interactive, math	2600	x1926
1019B	The hat binary search, interactive	2000	x1891
1534E	Lost Array graphs, greedy, interactive, shortest paths	2300	x1844
1498E	Two Houses brute force, graphs, greedy, interactive, sortings	2200	x1833
1903E	Geo Game greedy, interactive, math	2000	x1776
744B	Hongcow's Game bitmasks, divide and conquer, interactive	1900	x1706
1617D2	Too Many Impostors (hard version) constructive algorithms, implementation, interactive, math	2400	x1702
1779E	Anya's Simultaneous Exhibition constructive algorithms, graphs, greedy, interactive, sortings	2400	x1684
710F	String Set Queries brute force, data structures, hashing, interactive, string suffix structures, strings	2400	x1663
862D	Mahmoud and Ehab and the binary string binary search, divide and conquer, interactive	2000	x1648
1044B	Intersecting Subtrees dfs and similar, interactive, trees	1900	x1540
1406E	Deleting Numbers interactive, math, number theory	2600	x1539
1918E	ace5 and Task Order constructive algorithms, divide and conquer, implementation, interactive, probabilities, sortings	2200	x1527
811D	Vladik and Favorite Game constructive algorithms, dfs and similar, graphs, interactive	2100	x1524
1137D	Cooperative Game constructive algorithms, interactive, number theory	2400	x1458
1153E	Serval and Snake binary search, brute force, interactive	2200	x1446
1117E	Decypher the String bitmasks, chinese remainder theorem, constructive algorithms, interactive, math	2200	x1442
809B	Glad to see you! binary search, interactive	2200	x1436
1174F	Ehab and the Big Finale constructive algorithms, divide and conquer, graphs, implementation, interactive, trees	2400	x1434
713B	Searching Rectangles binary search, constructive algorithms, interactive	2200	x1419
1155E	Guess the Root brute force, interactive, math	2200	x1388
1666I	Interactive Treasure Hunt brute force, constructive algorithms, geometry, interactive, math	2200	x1381
1370F1	The Hidden Pair (Easy Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2400	x1352
1746E1	Joking (Easy Version) binary search, constructive algorithms, interactive, ternary search	2500	x1338
1470C	Strange Shuffle binary search, brute force, constructive algorithms, interactive	2500	x1302
1254C	Point Ordering constructive algorithms, geometry, interactive, math	2300	x1260
1286C1	Madhouse (Easy version) brute force, constructive algorithms, interactive, math	2400	x1253
1370F2	The Hidden Pair (Hard Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2700	x1231
870D	Something with XOR Queries brute force, interactive, probabilities	2000	x1193
1879E	Interactive Game with Coloring brute force, constructive algorithms, dfs and similar, graphs, implementation, interactive, trees	2400	x1177

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