Problemset - Codeforces

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Educational Codeforces Round 165 (Rated for Div. 2)
42:58:39
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bitmasks

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Problems

#	Name
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6411
1556D	Take a Guess bitmasks, constructive algorithms, interactive, math	1800	x6460
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6467
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x6532
888E	Maximum Subsequence bitmasks, divide and conquer, meet-in-the-middle	1800	x6581
570D	Tree Requests binary search, bitmasks, constructive algorithms, dfs and similar, graphs, trees	2200	x6623
1288D	Minimax Problem binary search, bitmasks, dp	2000	x6662
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x6676
1303D	Fill The Bag bitmasks, greedy	1900	x6807
1760G	SlavicG's Favorite Problem bitmasks, dfs and similar, graphs	1700	x6854
1491D	Zookeeper and The Infinite Zoo bitmasks, constructive algorithms, dp, greedy, math	1800	x6872
1466E	Apollo versus Pan bitmasks, brute force, math	1800	x6935
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x6970
1883E	Look Back bitmasks, greedy	1700	x6977
1829H	Don't Blame Me bitmasks, combinatorics, dp, math	1700	x7009
1217C	The Number Of Good Substrings binary search, bitmasks, brute force	1700	x7082
1051D	Bicolorings bitmasks, dp	1700	x7113
224B	Array bitmasks, implementation, two pointers	1500	x7145
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x7191
1285D	Dr. Evil Underscores bitmasks, brute force, dfs and similar, divide and conquer, dp, greedy, strings, trees	1900	x7325
1543D1	RPD and Rap Sheet (Easy Version) bitmasks, constructive algorithms, interactive, math	1700	x7426
1340B	Nastya and Scoreboard bitmasks, dp, graphs, greedy	1700	x7566
1592C	Bakry and Partitioning bitmasks, constructive algorithms, dfs and similar, dp, graphs, trees	1700	x7584
1778C	Flexible String bitmasks, brute force, strings	1600	x7627
913C	Party Lemonade bitmasks, dp, greedy	1600	x7736
1332D	Walk on Matrix bitmasks, constructive algorithms, math	1700	x7807
1338B	Edge Weight Assignment bitmasks, constructive algorithms, dfs and similar, greedy, math, trees	1800	x8042
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x8086
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8312
242E	XOR on Segment bitmasks, data structures	2000	x8380
1554C	Mikasa binary search, bitmasks, greedy, implementation	1800	x8502
1225C	p-binary bitmasks, brute force, math	1600	x8640
1658D1	388535 (Easy Version) bitmasks, math	1600	x8743
1202A	You Are Given Two Binary Strings... bitmasks, greedy	1100	x8792
1152B	Neko Performs Cat Furrier Transform bitmasks, constructive algorithms, dfs and similar, math	1300	x8799
1731C	Even Subarrays bitmasks, brute force, hashing, math, number theory	1700	x8897
580D	Kefa and Dishes bitmasks, dp	1800	x9134
437B	The Child and Set bitmasks, greedy, implementation, sortings	1500	x9137
706D	Vasiliy's Multiset binary search, bitmasks, data structures, trees	1800	x9239
1775C	Interesting Sequence bitmasks, math	1600	x9605
611B	New Year and Old Property bitmasks, brute force, implementation	1300	x9760
1742G	Orray bitmasks, brute force, greedy, math, sortings	1500	x9770
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x9817
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x9900
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x9956
1722G	Even-Odd XOR bitmasks, constructive algorithms, greedy	1500	x10278
1659B	Bit Flipping bitmasks, constructive algorithms, greedy, strings	1300	x10596
484A	Bits bitmasks, constructive algorithms	1700	x10659
1151B	Dima and a Bad XOR bitmasks, brute force, constructive algorithms, dp	1600	x10674
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x10736
1878E	Iva & Pav binary search, bitmasks, data structures, greedy	1400	x10926
1368D	AND, OR and square sum bitmasks, greedy, math	1700	x11194
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x11247
912B	New Year's Eve bitmasks, constructive algorithms, number theory	1300	x11306
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x11499
1325D	Ehab the Xorcist bitmasks, constructive algorithms, greedy, number theory	1700	x11509
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x11810
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11821
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x11824
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x12177
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x12224
1554B	Cobb bitmasks, brute force, greedy, math	1700	x12386
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x12432
1775B	Gardener and the Array bitmasks, constructive algorithms	1300	x12476
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x12544
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x12915
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x13106
1601A	Array Elimination bitmasks, greedy, math, number theory	1300	x13148
1870B	Friendly Arrays bitmasks, greedy, math	1200	x13288
1926D	Vlad and Division bitmasks, greedy	1300	x13327
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x13493
1913C	Game with Multiset binary search, bitmasks, brute force, greedy	1300	x13531
1270C	Make Good bitmasks, constructive algorithms, math	1400	x13572
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation		x13641
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x13693
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x13697
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x13923
1944B	Equal XOR bitmasks, constructive algorithms	1100	x13941
1630A	And Matching bitmasks, constructive algorithms	1500	x14040
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x14122
743B	Chloe and the sequence binary search, bitmasks, constructive algorithms, implementation	1200	x14203
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x14204
96B	Lucky Numbers (easy) binary search, bitmasks, brute force	1300	x14379
1726B	Mainak and Interesting Sequence bitmasks, constructive algorithms, math	1100	x14614
1042B	Vitamins bitmasks, brute force, dp, implementation	1200	x15113
1615B	And It's Non-Zero bitmasks, greedy, math	1300	x15160
1763A	Absolute Maximization bitmasks, constructive algorithms, greedy, math	800	x15235
1842B	Tenzing and Books bitmasks, greedy, math	1100	x15563
1634B	Fortune Telling bitmasks, math	1400	x15597
1095C	Powers Of Two bitmasks, greedy	1400	x15676
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x15753
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x15772
202A	LLPS binary search, bitmasks, brute force, greedy, implementation, strings	800	x15836
1547D	Co-growing Sequence bitmasks, constructive algorithms, greedy	1300	x15962
1498B	Box Fitting binary search, bitmasks, data structures, greedy	1300	x16038
1669H	Maximal AND bitmasks, greedy, math	1300	x16073
1625A	Ancient Civilization bitmasks, greedy, math	800	x16935
1661B	Getting Zero bitmasks, brute force, dfs and similar, dp, graphs, greedy, shortest paths	1300	x16937
1362C	Johnny and Another Rating Drop bitmasks, greedy, math	1400	x16962
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x16988