Problemset - Codeforces

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Codeforces Round 945 (Div. 2)
3 days
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Problems

#	Name
557C	Arthur and Table brute force, data structures, dp, greedy, math, sortings	1900	x3940
1909D	Split Plus K greedy, math, number theory	1900	x3985
1729F	Kirei and the Linear Function hashing, math	1900	x3997
1650E	Rescheduling the Exam binary search, data structures, greedy, implementation, math, sortings	1900	x4021
1421D	Hexagons brute force, constructive algorithms, greedy, implementation, math, shortest paths	1900	x4049
1144E	Median String bitmasks, math, number theory, strings	1900	x4058
1453D	Checkpoints brute force, constructive algorithms, greedy, math, probabilities	1900	x4078
1929D	Sasha and a Walk in the City combinatorics, dp, math, trees	1900	x4176
1759G	Restore the Permutation binary search, constructive algorithms, data structures, greedy, math	1900	x4230
1717D	Madoka and The Corruption Scheme combinatorics, constructive algorithms, greedy, math	1900	x4260
894C	Marco and GCD Sequence constructive algorithms, math	1900	x4286
476D	Dreamoon and Sets constructive algorithms, greedy, math	1900	x4321
552D	Vanya and Triangles brute force, combinatorics, data structures, geometry, math, sortings	1900	x4356
711D	Directed Roads combinatorics, dfs and similar, graphs, math	1900	x4360
1270D	Strange Device constructive algorithms, interactive, math, sortings	1900	x4399
1613D	MEX Sequences dp, math	1900	x4437
1558B	Up the Strip brute force, dp, math, number theory, two pointers	1900	x4614
1294E	Obtain a Permutation greedy, implementation, math	1900	x4693
1898D	Absolute Beauty greedy, math	1900	x4737
1821D	Black Cells binary search, brute force, greedy, math	1900	x4759
1383B	GameGame bitmasks, constructive algorithms, dp, games, greedy, math	1900	x4767
1593D2	Half of Same brute force, math, number theory	1900	x4797
1704D	Magical Array constructive algorithms, hashing, implementation, math	1900	x4861
803C	Maximal GCD constructive algorithms, greedy, math	1900	x4915
1371E1	Asterism (Easy Version) binary search, brute force, combinatorics, math, number theory, sortings	1900	x4953
1202D	Print a 1337-string... combinatorics, constructive algorithms, math, strings	1900	x5017
1920D	Array Repetition binary search, brute force, dsu, implementation, math	1900	x5099
1647D	Madoka and the Best School in Russia constructive algorithms, dp, math, number theory	1900	x5117
1543C	Need for Pink Slips bitmasks, brute force, dfs and similar, implementation, math, probabilities	1900	x5183
510D	Fox And Jumping bitmasks, brute force, dp, math	1900	x5184
1922D	Berserk Monsters brute force, data structures, dsu, implementation, math	1900	x5231
1197D	Yet Another Subarray Problem dp, greedy, math	1900	x5237
1749D	Counting Arrays combinatorics, dp, math, number theory	1900	x5267
1744E2	Divisible Numbers (hard version) brute force, math, number theory	1900	x5282
552C	Vanya and Scales brute force, dp, greedy, math, meet-in-the-middle, number theory	1900	x5391
1490G	Old Floppy Drive binary search, data structures, math	1900	x5484
1701D	Permutation Restoration binary search, data structures, greedy, math, sortings, two pointers	1900	x5485
1895D	XOR Construction bitmasks, constructive algorithms, data structures, math, string suffix structures, trees	1900	x5582
1207E	XOR Guessing bitmasks, interactive, math	1900	x5618
1545B	AquaMoon and Chess combinatorics, math	1900	x5640
1700D	River Locks binary search, dp, greedy, math	1900	x5842
1492D	Genius's Gambit bitmasks, constructive algorithms, greedy, math	1900	x5933
1444B	Divide and Sum combinatorics, math, sortings	1900	x6048
459C	Pashmak and Buses combinatorics, constructive algorithms, math	1900	x6070
1470B	Strange Definition bitmasks, graphs, hashing, math, number theory	1900	x6152
1475G	Strange Beauty dp, math, number theory, sortings	1900	x6412
1656D	K-good constructive algorithms, math, number theory	1900	x6616
1854A2	Dual (Hard Version) constructive algorithms, math	1900	x6699
1360G	A/B Matrix constructive algorithms, greedy, math	1900	x7386
1627D	Not Adding brute force, dp, math, number theory	1900	x7845
1369D	TediousLee dp, graphs, greedy, math, trees	1900	x8265
1348D	Phoenix and Science binary search, constructive algorithms, greedy, implementation, math	1900	x8497
1400D	Zigzags brute force, combinatorics, data structures, math, two pointers	1900	x9814
72A	Goshtasp, Vishtasp and Eidi *special problem, greedy, math	1800	x181
64E	Prime Segment *special problem, brute force, math, number theory	1800	x234
1571D	Sweepstake *special problem, brute force, constructive algorithms, implementation, math	1800	x320
44D	Hyperdrive math	1800	x689
48C	The Race math	1800	x756
123B	Squares math	1800	x1095
630M	Turn geometry, math	1800	x1097
1402A	Fancy Fence *special problem, data structures, dsu, implementation, math, sortings	1800	x1142
24C	Sequence of points geometry, implementation, math	1800	x1214
251B	Playing with Permutations implementation, math	1800	x1250
201B	Guess That Car! math, ternary search	1800	x1252
15B	Laser math	1800	x1298
325B	Stadium and Games binary search, math	1800	x1471
185B	Mushroom Scientists math, ternary search	1800	x1598
83B	Doctor binary search, math, sortings	1800	x1617
575H	Bots combinatorics, dp, math, number theory	1800	x1631
65A	Harry Potter and Three Spells implementation, math	1800	x1783
255D	Mr. Bender and Square binary search, implementation, math	1800	x1930
222C	Reducing Fractions implementation, math, number theory, sortings	1800	x2085
167B	Wizards and Huge Prize dp, math, probabilities	1800	x2093
724C	Ray Tracing greedy, hashing, implementation, math, number theory, sortings	1800	x2113
846F	Random Query data structures, math, probabilities, two pointers	1800	x2205
433C	Ryouko's Memory Note implementation, math, sortings	1800	x2398
1725H	Hot Black Hot White constructive algorithms, math	1800	x2506
402D	Upgrading Array dp, greedy, math, number theory	1800	x2517
603B	Moodular Arithmetic combinatorics, dfs and similar, dsu, math, number theory	1800	x2535
77B	Falling Anvils math, probabilities	1800	x2546
513B2	Permutations bitmasks, divide and conquer, math	1800	x2564
1250B	The Feast and the Bus brute force, constructive algorithms, greedy, math	1800	x2565
1267J	Just Arrange the Icons greedy, implementation, math	1800	x2622
351A	Jeff and Rounding dp, greedy, implementation, math	1800	x2682
899D	Shovel Sale constructive algorithms, math	1800	x2684
822D	My pretty girl Noora brute force, dp, greedy, math, number theory	1800	x2962
592C	The Big Race math	1800	x3036
492D	Vanya and Computer Game binary search, implementation, math, sortings	1800	x3119
963A	Alternating Sum math, number theory	1800	x3223
663A	Rebus constructive algorithms, expression parsing, greedy, math	1800	x3252
991E	Bus Number brute force, combinatorics, math	1800	x3408
917A	The Monster dp, greedy, implementation, math	1800	x3427
1107D	Compression dp, implementation, math, number theory	1800	x3683
1759F	All Possible Digits binary search, data structures, greedy, math, number theory	1800	x3705
1280B	Beingawesomeism implementation, math	1800	x3759
813B	The Golden Age brute force, math	1800	x3787
1062D	Fun with Integers dfs and similar, graphs, implementation, math	1800	x3866
1138B	Circus brute force, greedy, math, strings	1800	x3938
483B	Friends and Presents binary search, math	1800	x3991
772A	Voltage Keepsake binary search, math	1800	x4077