Problemset - Codeforces

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Codeforces Round #697 (Div. 3)
3 days

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Difficulty: —

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Problems

#	Name
1470C	Strange Shuffle binary search, brute force, constructive algorithms, interactive	2500	x773
1466I	The Riddle of the Sphinx binary search, data structures, interactive	3400	x64
1451E1	Bitwise Queries (Easy Version) bitmasks, constructive algorithms, interactive, math	2000	x2713
1451E2	Bitwise Queries (Hard Version) bitmasks, constructive algorithms, interactive, math	2300	x1770
1438F	Olha and Igor interactive, probabilities, trees	3000	x235
1442F	Differentiating Games games, interactive	3400	x30
1444E	Finding the Vertex brute force, dfs and similar, dp, interactive, trees	3500	x27
1428H	Rotary Laser Lock binary search, interactive	3500	x23
1423M	Milutin's Plums interactive	2800	x74
1425F	Flamingoes of Mystery interactive	1400	x2255
1406E	Deleting Numbers interactive, math, number theory	2600	x999
1407C	Chocolate Bunny constructive algorithms, interactive, math, two pointers	1600	x7569
1404D	Game of Pairs constructive algorithms, dfs and similar, interactive, math, number theory	2800	x500
1403A	The Potion of Great Power *special problem, 2-sat, binary search, data structures, graphs, interactive, sortings, two pointers	2400	x198
1392E	Omkar and Duck bitmasks, constructive algorithms, interactive, math	2100	x2496
1386A	Colors *special problem, binary search, constructive algorithms, interactive	2700	x145
1372F	Omkar and Modes binary search, divide and conquer, interactive	2700	x254
1375F	Integer Game constructive algorithms, games, interactive, math	2600	x1349
1370F2	The Hidden Pair (Hard Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2700	x856
1370F1	The Hidden Pair (Easy Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2400	x961
1368F	Lamps on a Circle games, implementation, interactive, math	2600	x603
1364E	X-OR bitmasks, constructive algorithms, divide and conquer, interactive, probabilities	2700	x674
1365G	Secure Password bitmasks, combinatorics, constructive algorithms, interactive, math	2800	x489
1363D	Guess The Maximums binary search, implementation, interactive, math	2100	x3029
1354G	Find a Gift binary search, interactive, probabilities	2600	x404
1355F	Guess Divisors Count constructive algorithms, interactive, number theory	2600	x506
1340E	Nastya and Bees graphs, interactive, probabilities	3000	x38
1336D	Yui and Mahjong Set constructive algorithms, interactive	3200	x332
1305D	Kuroni and the Celebration constructive algorithms, dfs and similar, interactive, trees	1900	x3583
1299E	So Mean interactive, math	3400	x71
1291F	Coffee Varieties (easy version) graphs, interactive	2800	x210
1290D	Coffee Varieties (hard version) constructive algorithms, graphs, interactive	3000	x288
1292E	Rin and The Unknown Flower constructive algorithms, greedy, interactive, math	3500	x126
1286C2	Madhouse (Hard version) brute force, constructive algorithms, hashing, interactive, math	2800	x376
1286C1	Madhouse (Easy version) brute force, constructive algorithms, interactive, math	2400	x839
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x3506
1282D	Enchanted Artifact constructive algorithms, interactive, strings	2300	x1532
1275F	Шардирование постов *special problem, binary search, interactive		x91
1267I	Intriguing Selection brute force, constructive algorithms, implementation, interactive, sortings	2600	x459
1254C	Point Ordering constructive algorithms, geometry, interactive, math	2300	x914
1207E	XOR Guessing bitmasks, interactive, math	1900	x3905
1205C	Palindromic Paths implementation, interactive	2400	x877
1201E2	Knightmare (hard) graphs, interactive, shortest paths	3000	x84
1201E1	Knightmare (easy) graphs, interactive, shortest paths	2900	x74
1179E	Alesya and Discrete Math divide and conquer, interactive	3200	x75
1174F	Ehab and the Big Finale constructive algorithms, divide and conquer, graphs, implementation, interactive, trees	2400	x830
1167B	Lost Numbers brute force, divide and conquer, interactive, math	1400	x6661
1158E	Strange device binary search, interactive, math, trees	3400	x60
1147F	Zigzag Game games, interactive	3500	x95
1147E	Rainbow Coins interactive	3000	x204
1155E	Guess the Root brute force, interactive, math	2200	x1001
1146C	Tree Diameter bitmasks, graphs, interactive	1700	x2573
1153E	Serval and Snake binary search, brute force, interactive	2200	x1152
1145G	AI Takeover interactive		x96
1142E	Pink Floyd graphs, interactive	3200	x146
1137D	Cooperative Game constructive algorithms, interactive, number theory	2400	x729
1129E	Legendary Tree binary search, interactive, trees	3100	x219
1117E	Decypher the String bitmasks, chinese remainder theorem, constructive algorithms, interactive, math	2200	x1090
1114E	Arithmetic Progression binary search, interactive, number theory, probabilities	2200	x1968
1103B	Game with modulo binary search, constructive algorithms, interactive	2000	x2517
1100D	Dasha and Chess constructive algorithms, games, interactive	2500	x643
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3200	x109
1081F	Tricky Interactor constructive algorithms, implementation, interactive	2600	x291
1090F	How to Learn You Score constructive algorithms, interactive	2600	x139
1088D	Ehab and another another xor problem bitmasks, constructive algorithms, implementation, interactive	2000	x1940
1089C	Cactus Search interactive	2500	x273
1056C	Pick Heroes greedy, implementation, interactive, sortings	1700	x1814
1080F	Katya and Segments Sets data structures, interactive, sortings	2400	x404
1061F	Lost Root interactive, probabilities	2400	x416
1044B	Intersecting Subtrees dfs and similar, interactive, trees	1900	x1256
1063C	Dwarves, Hats and Extrasensory Abilities binary search, constructive algorithms, geometry, interactive	1900	x2119
1033E	Hidden Bipartite Graph binary search, constructive algorithms, dfs and similar, graphs, interactive	2800	x316
1033D	Divisors interactive, math, number theory	2000	x1661
1039B	Subway Pursuit binary search, interactive, probabilities	2100	x1636
1028G	Guess the number dp, interactive	3000	x274
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x1509
1019B	The hat binary search, interactive	2000	x1460
1010B	Rocket binary search, interactive	1800	x3769
1007C	Guess two numbers binary search, interactive	3000	x221
952B	A Map of the Cat brute force, interactive	1900	x1619
916D	Jamie and To-do List data structures, interactive, trees	2200	x298
896B	Ithea Plays With Chtholly binary search, constructive algorithms, games, greedy, interactive	2000	x1567
870D	Something with XOR Queries brute force, interactive, probabilities	2000	x1004
862D	Mahmoud and Ehab and the binary string binary search, divide and conquer, interactive	2000	x1321
843B	Interactive LowerBound brute force, interactive, probabilities	2000	x1579
835E	The penguin's game binary search, constructive algorithms, interactive	2400	x701
811D	Vladik and Favorite Game constructive algorithms, dfs and similar, graphs, interactive	2100	x1167
809B	Glad to see you! binary search, interactive	2200	x1165
772E	Verifying Kingdom binary search, divide and conquer, interactive, trees	3200	x77
788D	Finding lines constructive algorithms, divide and conquer, interactive	3000	x168
755C	PolandBall and Forest dfs and similar, dsu, graphs, interactive, trees	1300	x7036
750H	New Year and Snowy Grid dfs and similar, dsu, graphs, interactive	3500	x74
750F	New Year and Finding Roots constructive algorithms, implementation, interactive, trees	2800	x333
753C	Interactive Bulls and Cows (Hard) brute force, constructive algorithms, interactive	2500	x218
744B	Hongcow's Game bitmasks, divide and conquer, interactive	1900	x1442
730B	Minimum and Maximum constructive algorithms, interactive	1800	x1876
727C	Guess the Array constructive algorithms, interactive, math	1400	x3506
713B	Searching Rectangles binary search, constructive algorithms, interactive	2200	x1225
710F	String Set Queries brute force, data structures, hashing, interactive, string suffix structures, strings	2400	x704
679A	Bear and Prime 100 constructive algorithms, interactive, math	1400	x7652