Problemset - Codeforces

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Codeforces Round (Div. 2)
46:16:05
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bitmasks

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Problems

#	Name
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x10094
1609E	William The Oblivious bitmasks, data structures, dp, matrices	2400	x1973
1605D	Treelabeling bitmasks, constructive algorithms, dfs and similar, games, greedy, implementation, trees	2100	x2868
1601A	Array Elimination bitmasks, greedy, math, number theory	1300	x13979
1600J	Robot Factory bitmasks, dfs and similar	1400	x3837
1599J	Bob's Beautiful Array bitmasks, brute force, greedy	2600	x287
1598F	RBS binary search, bitmasks, brute force, data structures, dp	2400	x1396
1594B	Special Numbers bitmasks, math	1100	x19564
1592E	Bored Bakry bitmasks, greedy, math, two pointers	2400	x1569
1592C	Bakry and Partitioning bitmasks, constructive algorithms, dfs and similar, dp, graphs, trees	1700	x7783
1584F	Strange LCS bitmasks, dp, graphs, greedy, strings	2600	x903
1583F	Defender of Childhood Dreams bitmasks, constructive algorithms, divide and conquer	2500	x1248
1582F1	Korney Korneevich and XOR (easy version) bitmasks, dp, greedy	1800	x5430
1571E	Fix the String *special problem, bitmasks, dp, greedy	1700	x333
1569E	Playoff Restoration bitmasks, brute force, hashing, implementation, meet-in-the-middle	2600	x791
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x12000
1567B	MEXor Mixup bitmasks, greedy	1000	x22279
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x17291
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19365
1560F2	Nearest Beautiful Number (hard version) bitmasks, brute force, constructive algorithms, dfs and similar, dp, greedy	2100	x4273
1560F1	Nearest Beautiful Number (easy version) binary search, bitmasks, brute force, constructive algorithms, dfs and similar, greedy	1900	x6027
1559A	Mocha and Math bitmasks, constructive algorithms, math	900	x30029
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8469
1556G	Gates to Another World bitmasks, data structures, dsu, two pointers	3300	x315
1556F	Sports Betting bitmasks, combinatorics, dp, graphs, math, probabilities	2500	x1196
1556D	Take a Guess bitmasks, constructive algorithms, interactive, math	1800	x6736
1554C	Mikasa binary search, bitmasks, greedy, implementation	1800	x8710
1554B	Cobb bitmasks, brute force, greedy, math	1700	x12600
1553H	XOR and Distance bitmasks, divide and conquer, trees	2900	x679
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x17596
1552G	A Serious Referee bitmasks, brute force, dfs and similar, sortings	3000	x517
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x6871
1550E	Stringforces binary search, bitmasks, brute force, dp, strings, two pointers	2500	x1482
1548D1	Gregor and the Odd Cows (Easy) bitmasks, geometry, math, number theory	2300	x1440
1547D	Co-growing Sequence bitmasks, constructive algorithms, greedy	1300	x16353
1543E	The Final Pursuit bitmasks, constructive algorithms, divide and conquer, graphs, greedy, math	2700	x397
1543D1	RPD and Rap Sheet (Easy Version) bitmasks, constructive algorithms, interactive, math	1700	x7509
1543C	Need for Pink Slips bitmasks, brute force, dfs and similar, implementation, math, probabilities	1900	x5232
1533H	Submatrices *special problem, bitmasks, data structures, dp		x83
1530F	Bingo bitmasks, combinatorics, dp, math, probabilities	2600	x763
1527A	And Then There Were K bitmasks	800	x34841
1523F	Favorite Game bitmasks, dp	3300	x415
1523D	Love-Hate bitmasks, brute force, dp, probabilities	2400	x2139
1519F	Chests and Keys bitmasks, brute force, dfs and similar, dp, flows	3200	x402
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x11732
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x18778
1515H	Phoenix and Bits bitmasks, brute force, data structures, sortings	3500	x222
1514B	AND 0, Sum Big bitmasks, combinatorics, math	1200	x23905
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x14228
1511G	Chips on a Board bitmasks, brute force, data structures, dp, games, two pointers	2700	x720
1508C	Complete the MST bitmasks, brute force, data structures, dfs and similar, dsu, graphs, greedy, trees	2500	x1445
1500C	Matrix Sorting bitmasks, brute force, constructive algorithms, greedy, two pointers	2600	x787
1498F	Christmas Game bitmasks, data structures, dfs and similar, dp, games, math, trees	2500	x861
1498B	Box Fitting binary search, bitmasks, data structures, greedy	1300	x16581
1497D	Genius bitmasks, dp, graphs, number theory	2500	x1508
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x14124
1494A	ABC String bitmasks, brute force, implementation	900	x20627
1493F	Enchanted Matrix bitmasks, interactive, number theory	2600	x384
1493E	Enormous XOR bitmasks, constructive algorithms, greedy, math, strings, two pointers	2600	x883
1492D	Genius's Gambit bitmasks, constructive algorithms, greedy, math	1900	x6002
1491D	Zookeeper and The Infinite Zoo bitmasks, constructive algorithms, dp, greedy, math	1800	x7026
1479D	Odd Mineral Resource binary search, bitmasks, brute force, data structures, probabilities, trees	2900	x996
1479C	Continuous City bitmasks, constructive algorithms	2500	x1265
1476E	Pattern Matching bitmasks, data structures, dfs and similar, graphs, hashing, sortings, strings	2300	x2284
1470B	Strange Definition bitmasks, graphs, hashing, math, number theory	1900	x6247
1469E	A Bit Similar bitmasks, brute force, hashing, string suffix structures, strings, two pointers	2400	x1888
1466F	Euclid's nightmare bitmasks, dfs and similar, dsu, graphs, greedy, math, sortings	2100	x2812
1466E	Apollo versus Pan bitmasks, brute force, math	1800	x7147
1463F	Max Correct Set bitmasks, dp, math	3100	x564
1463B	Find The Array bitmasks, constructive algorithms, greedy	1400	x19040
1451E2	Bitwise Queries (Hard Version) bitmasks, constructive algorithms, interactive, math	2300	x2922
1451E1	Bitwise Queries (Easy Version) bitmasks, constructive algorithms, interactive, math	2000	x4297
1450G	Communism bitmasks, dp, trees	3500	x278
1446C	Xor Tree binary search, bitmasks, data structures, divide and conquer, dp, trees	2100	x3521
1439E	Cheat and Win bitmasks, data structures, games, trees	3500	x219
1438E	Yurii Can Do Everything binary search, bitmasks, brute force, constructive algorithms, divide and conquer, two pointers	2500	x1309
1438D	Powerful Ksenia bitmasks, constructive algorithms, math	2200	x4126
1430G	Yet Another DAG Problem bitmasks, dfs and similar, dp, flows, graphs, math	2600	x638
1427E	Xum bitmasks, constructive algorithms, math, matrices, number theory	2500	x1354
1423J	Bubble Cup hypothesis bitmasks, constructive algorithms, dp, math	2400	x744
1423I	Lookup Tables bitmasks	3000	x105
1421A	XORwice bitmasks, greedy, math	800	x28203
1420B	Rock and Lever bitmasks, math	1200	x24731
1416C	XOR Inverse bitmasks, data structures, divide and conquer, dp, greedy, math, sortings, strings, trees	2000	x4303
1415D	XOR-gun bitmasks, brute force, constructive algorithms	2000	x5294
1411G	No Game No Life bitmasks, games, math, matrices	2700	x598
1411E	Poman Numbers bitmasks, greedy, math, strings	2300	x1575
1401F	Reverse and Swap binary search, bitmasks, data structures	2400	x1607
1400G	Mercenaries bitmasks, brute force, combinatorics, dp, dsu, math, two pointers	2600	x947
1398G	Running Competition bitmasks, fft, math, number theory	2600	x858
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x13819
1392G	Omkar and Pies bitmasks, dfs and similar, dp, math, shortest paths	2900	x473
1392E	Omkar and Duck bitmasks, constructive algorithms, interactive, math	2100	x3341
1391D	505 bitmasks, brute force, constructive algorithms, dp, greedy, implementation	2000	x5057
1386C	Joker *special problem, bitmasks, data structures, divide and conquer, dsu	2800	x457
1385D	a-Good String bitmasks, brute force, divide and conquer, dp, implementation	1500	x18814
1383C	String Transformation 2 bitmasks, dp, graphs, trees	3100	x566
1383B	GameGame bitmasks, constructive algorithms, dp, games, greedy, math	1900	x4855
1368D	AND, OR and square sum bitmasks, greedy, math	1700	x11524
1365G	Secure Password bitmasks, combinatorics, constructive algorithms, interactive, math	2800	x1127