Problemset - Codeforces

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Codeforces Round #664 (Div. 1)
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Before contest
Codeforces Round #664 (Div. 2)
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Problems

#	Name
755C	PolandBall and Forest dfs and similar, dsu, graphs, interactive, trees	1300	x6444
679A	Bear and Prime 100 constructive algorithms, interactive, math	1400	x7169
1167B	Lost Numbers brute force, divide and conquer, interactive, math	1400	x6063
727C	Guess the Array constructive algorithms, interactive, math	1400	x3229
1146C	Tree Diameter bitmasks, graphs, interactive	1700	x2464
1056C	Pick Heroes greedy, implementation, interactive, sortings	1700	x1756
1010B	Rocket binary search, interactive	1800	x3556
730B	Minimum and Maximum constructive algorithms, interactive	1800	x1777
1207E	XOR Guessing bitmasks, interactive, math	1900	x3638
1305D	Kuroni and the Celebration constructive algorithms, dfs and similar, interactive, trees	1900	x3405
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x3295
1063C	Dwarves, Hats and Extrasensory Abilities binary search, constructive algorithms, geometry, interactive	1900	x2025
952B	A Map of the Cat brute force, interactive	1900	x1589
744B	Hongcow's Game bitmasks, divide and conquer, interactive	1900	x1380
1044B	Intersecting Subtrees dfs and similar, interactive, trees	1900	x1192
1103B	Game with modulo binary search, constructive algorithms, interactive	2000	x2398
1088D	Ehab and another another xor problem bitmasks, constructive algorithms, implementation, interactive	2000	x1836
1033D	Divisors interactive, math, number theory	2000	x1578
843B	Interactive LowerBound brute force, interactive, probabilities	2000	x1521
896B	Ithea Plays With Chtholly binary search, constructive algorithms, games, greedy, interactive	2000	x1483
1019B	The hat binary search, interactive	2000	x1367
862D	Mahmoud and Ehab and the binary string binary search, divide and conquer, interactive	2000	x1264
870D	Something with XOR Queries brute force, interactive, probabilities	2000	x944
1363D	Guess The Maximums binary search, implementation, interactive, math	2100	x2834
1039B	Subway Pursuit binary search, interactive, probabilities	2100	x1559
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x1414
811D	Vladik and Favorite Game constructive algorithms, dfs and similar, graphs, interactive	2100	x1120
1114E	Arithmetic Progression binary search, interactive, number theory, probabilities	2200	x1859
713B	Searching Rectangles binary search, constructive algorithms, interactive	2200	x1190
809B	Glad to see you! binary search, interactive	2200	x1119
1153E	Serval and Snake binary search, brute force, interactive	2200	x1100
1117E	Decypher the String bitmasks, chinese remainder theorem, constructive algorithms, interactive, math	2200	x1014
1155E	Guess the Root brute force, interactive, math	2200	x940
916D	Jamie and To-do List data structures, interactive, trees	2200	x286
1282D	Enchanted Artifact constructive algorithms, interactive, strings	2300	x1445
1254C	Point Ordering constructive algorithms, geometry, interactive, math	2300	x857
1370F1	The Hidden Pair (Easy Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2400	x873
1205C	Palindromic Paths implementation, interactive	2400	x838
1286C1	Madhouse (Easy version) brute force, constructive algorithms, interactive, math	2400	x805
1174F	Ehab and the Big Finale constructive algorithms, divide and conquer, graphs, implementation, interactive, trees	2400	x784
835E	The penguin's game binary search, constructive algorithms, interactive	2400	x674
1137D	Cooperative Game constructive algorithms, interactive, number theory	2400	x670
1061F	Lost Root interactive, probabilities	2400	x383
1080F	Katya and Segments Sets data structures, interactive, sortings	2400	x363
1100D	Dasha and Chess constructive algorithms, games, interactive	2500	x620
1089C	Cactus Search interactive	2500	x260
753C	Interactive Bulls and Cows (Hard) brute force, constructive algorithms, interactive	2500	x209
1375F	Integer Game constructive algorithms, games, interactive, math	2600	x1191
1368F	Lamps on a Circle games, implementation, interactive, math	2600	x547
1355F	Guess Divisors Count constructive algorithms, interactive, number theory	2600	x456
1267I	Intriguing Selection brute force, constructive algorithms, implementation, interactive, sortings	2600	x438
1354G	Find a Gift binary search, interactive, probabilities	2600	x363
1081F	Tricky Interactor constructive algorithms, implementation, interactive	2600	x283
1090F	How to Learn You Score constructive algorithms, interactive	2600	x125
1370F2	The Hidden Pair (Hard Version) binary search, dfs and similar, graphs, interactive, shortest paths, trees	2700	x766
1364E	X-OR bitmasks, constructive algorithms, divide and conquer, interactive, probabilities	2700	x590
1372F	Omkar and Modes binary search, divide and conquer, interactive	2700	x208
1386A	Colors *special problem, binary search, constructive algorithms, interactive	2700	x115
1365G	Secure Password bitmasks, combinatorics, constructive algorithms, interactive, math	2800	x434
1286C2	Madhouse (Hard version) brute force, constructive algorithms, hashing, interactive, math	2800	x352
750F	New Year and Finding Roots constructive algorithms, implementation, interactive, trees	2800	x315
1033E	Hidden Bipartite Graph binary search, constructive algorithms, dfs and similar, graphs, interactive	2800	x294
1291F	Coffee Varieties (easy version) graphs, interactive	2800	x190
1201E1	Knightmare (easy) graphs, interactive, shortest paths	2900	x71
1290D	Coffee Varieties (hard version) constructive algorithms, graphs, interactive	3000	x276
1028G	Guess the number dp, interactive	3000	x264
1147E	Rainbow Coins interactive	3000	x196
1007C	Guess two numbers binary search, interactive	3000	x191
788D	Finding lines constructive algorithms, divide and conquer, interactive	3000	x158
1201E2	Knightmare (hard) graphs, interactive, shortest paths	3000	x79
1340E	Nastya and Bees graphs, interactive, probabilities	3000	x37
1129E	Legendary Tree binary search, interactive, trees	3100	x183
1336D	Yui and Mahjong Set constructive algorithms, interactive	3200	x301
1142E	Pink Floyd graphs, interactive	3200	x126
1091G	New Year and the Factorisation Collaboration interactive, math, number theory	3200	x103
772E	Verifying Kingdom binary search, divide and conquer, interactive, trees	3200	x72
1179E	Alesya and Discrete Math divide and conquer, interactive	3200	x67
1299E	So Mean interactive, math	3400	x55
1158E	Strange device binary search, interactive, math, trees	3400	x55
1292E	Rin and The Unknown Flower constructive algorithms, greedy, interactive, math	3500	x107
1147F	Zigzag Game games, interactive	3500	x73
750H	New Year and Snowy Grid dfs and similar, dsu, graphs, interactive	3500	x63