Problemset - Codeforces

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Codeforces Round 940 (Div. 2) and CodeCraft-23
2 days
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Problems

#	Name
1510I	Is It Rated? greedy, interactive, math, probabilities	2700	x443
1505A	Is it rated - 2 *special problem, implementation, interactive	900	x13947
1503B	3-Coloring constructive algorithms, games, interactive	1700	x6825
1499G	Graph Coloring data structures, graphs, interactive	3100	x184
1498E	Two Houses brute force, graphs, greedy, interactive, sortings	2200	x1826
1493F	Enchanted Matrix bitmasks, interactive, number theory	2600	x372
1491F	Magnets binary search, constructive algorithms, interactive	2700	x894
1486C2	Guessing the Greatest (hard version) binary search, interactive	1900	x8094
1486C1	Guessing the Greatest (easy version) binary search, interactive	1600	x11543
1482G	Vabank binary search, interactive	3200	x261
1479A	Searching Local Minimum binary search, interactive, ternary search	1700	x11085
1470C	Strange Shuffle binary search, brute force, constructive algorithms, interactive	2500	x1294
1466I	The Riddle of the Sphinx binary search, data structures, data structures, interactive	3400	x178
1451E2	Bitwise Queries (Hard Version) bitmasks, constructive algorithms, interactive, math	2300	x2819
1451E1	Bitwise Queries (Easy Version) bitmasks, constructive algorithms, interactive, math	2000	x4177
1444E	Finding the Vertex brute force, dfs and similar, dp, interactive, trees	3500	x129
1442F	Differentiating Games games, interactive	3400	x126
1438F	Olha and Igor interactive, probabilities, trees	3000	x604
1428H	Rotary Laser Lock binary search, interactive	3500	x83
1425F	Flamingoes of Mystery interactive	1400	x5132
1423M	Milutin's Plums interactive	2800	x144
1407C	Chocolate Bunny constructive algorithms, interactive, math, two pointers	1600	x11360
1406E	Deleting Numbers interactive, math, number theory	2600	x1536
1404D	Game of Pairs constructive algorithms, dfs and similar, interactive, math, number theory	2800	x981
1403A	The Potion of Great Power *special problem, 2-sat, binary search, data structures, graphs, interactive, sortings, two pointers	2400	x283
1392E	Omkar and Duck bitmasks, constructive algorithms, interactive, math	2100	x3232
1386A	Colors *special problem, binary search, constructive algorithms, interactive	2700	x248
1375F	Integer Game constructive algorithms, games, interactive, math	2600	x1923
1372F	Omkar and Modes binary search, divide and conquer, interactive	2700	x420
1370F2	The Hidden Pair (Hard Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2700	x1227
1370F1	The Hidden Pair (Easy Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2400	x1349
1368F	Lamps on a Circle games, implementation, interactive, math	2600	x841
1365G	Secure Password bitmasks, combinatorics, constructive algorithms, interactive, math	2800	x911
1364E	X-OR bitmasks, constructive algorithms, divide and conquer, interactive, probabilities	2700	x1107
1363D	Guess The Maximums binary search, implementation, interactive, math	2100	x3820
1355F	Guess Divisors Count constructive algorithms, interactive, number theory	2600	x803
1354G	Find a Gift binary search, interactive, probabilities	2600	x717
1340E	Nastya and Bees graphs, interactive, probabilities	3000	x51
1336D	Yui and Mahjong Set constructive algorithms, interactive	3200	x456
1305D	Kuroni and the Celebration constructive algorithms, dfs and similar, interactive, trees	1900	x4698
1299E	So Mean interactive, math	3400	x147
1292E	Rin and The Unknown Flower constructive algorithms, greedy, interactive, math	3500	x326
1291F	Coffee Varieties (easy version) graphs, interactive	2800	x480
1290D	Coffee Varieties (hard version) constructive algorithms, graphs, interactive	3000	x642
1286C2	Madhouse (Hard version) brute force, constructive algorithms, hashing, interactive, math	2800	x605
1286C1	Madhouse (Easy version) brute force, constructive algorithms, interactive, math	2400	x1252
1282D	Enchanted Artifact constructive algorithms, interactive, strings	2300	x2027
1275F	Шардирование постов *special problem, binary search, interactive		x91
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x4357
1267I	Intriguing Selection brute force, constructive algorithms, implementation, interactive, sortings	2600	x725
1254C	Point Ordering constructive algorithms, geometry, interactive, math	2300	x1259
1207E	XOR Guessing bitmasks, interactive, math	1900	x5586
1205C	Palindromic Paths implementation, interactive	2400	x1113
1201E2	Knightmare (hard) graphs, interactive, shortest paths	3000	x139
1201E1	Knightmare (easy) graphs, interactive, shortest paths	2900	x124
1179E	Alesya and Discrete Math divide and conquer, interactive	3200	x167
1174F	Ehab and the Big Finale constructive algorithms, divide and conquer, graphs, implementation, interactive, trees	2400	x1433
1167B	Lost Numbers brute force, divide and conquer, interactive, math	1400	x10409
1158E	Strange device binary search, interactive, math, trees	3400	x146
1155E	Guess the Root brute force, interactive, math	2200	x1388
1153E	Serval and Snake binary search, brute force, interactive	2200	x1442
1147F	Zigzag Game games, interactive	3500	x235
1147E	Rainbow Coins interactive	3000	x320
1146C	Tree Diameter bitmasks, graphs, interactive	1700	x3376
1145G	AI Takeover interactive		x159
1142E	Pink Floyd graphs, interactive	3200	x479
1137D	Cooperative Game constructive algorithms, interactive, number theory	2400	x1452
1129E	Legendary Tree binary search, interactive, trees	3100	x367
1117E	Decypher the String bitmasks, chinese remainder theorem, constructive algorithms, interactive, math	2200	x1441
1114E	Arithmetic Progression binary search, interactive, number theory, probabilities	2200	x2761
1103B	Game with modulo binary search, constructive algorithms, interactive	2000	x3160
1100D	Dasha and Chess constructive algorithms, games, interactive	2500	x827
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3200	x188
1090F	How to Learn You Score constructive algorithms, interactive	2600	x296
1089C	Cactus Search interactive	2500	x400
1088D	Ehab and another another xor problem bitmasks, constructive algorithms, implementation, interactive	2000	x2751
1081F	Tricky Interactor constructive algorithms, implementation, interactive	2600	x443
1080F	Katya and Segments Sets data structures, interactive, sortings	2400	x668
1063C	Dwarves, Hats and Extrasensory Abilities binary search, constructive algorithms, geometry, interactive	1900	x2781
1061F	Lost Root interactive, probabilities	2400	x678
1056C	Pick Heroes greedy, implementation, interactive, sortings	1700	x2308
1044B	Intersecting Subtrees dfs and similar, interactive, trees	1900	x1540
1039B	Subway Pursuit binary search, interactive, probabilities	2100	x2272
1033E	Hidden Bipartite Graph binary search, constructive algorithms, dfs and similar, graphs, interactive	2800	x576
1033D	Divisors interactive, math, number theory	2000	x2301
1028G	Guess the number dp, interactive	3000	x524
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x1947
1019B	The hat binary search, interactive	2000	x1890
1010B	Rocket binary search, interactive	1800	x5055
1007C	Guess two numbers binary search, interactive	3000	x399
952B	A Map of the Cat brute force, interactive	1900	x1976
927A	BuberPool Taxi Optimization *special problem, interactive	2900	x1
916D	Jamie and To-do List data structures, interactive, trees	2200	x487
896B	Ithea Plays With Chtholly binary search, constructive algorithms, games, greedy, interactive	2000	x2044
870D	Something with XOR Queries brute force, interactive, probabilities	2000	x1191
862D	Mahmoud and Ehab and the binary string binary search, divide and conquer, interactive	2000	x1644
843B	Interactive LowerBound brute force, interactive, probabilities	2000	x2125
835E	The penguin's game binary search, constructive algorithms, interactive	2400	x1122
811D	Vladik and Favorite Game constructive algorithms, dfs and similar, graphs, interactive	2100	x1524
809B	Glad to see you! binary search, interactive	2200	x1436