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bitmasks

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Problems

#	Name
1658D2	388535 (Hard Version) bitmasks, brute force, data structures, math	2300	x2440
1073E	Segment Sum bitmasks, combinatorics, dp, math	2300	x2388
1476E	Pattern Matching bitmasks, data structures, dfs and similar, graphs, hashing, sortings, strings	2300	x2241
1870E	Another MEX Problem bitmasks, brute force, dp, shortest paths	2300	x2210
1705E	Mark and Professor Koro binary search, bitmasks, brute force, combinatorics, data structures, greedy	2300	x1978
1625D	Binary Spiders bitmasks, data structures, implementation, math, sortings, trees	2300	x1968
1093G	Multidimensional Queries bitmasks, data structures	2300	x1825
1245F	Daniel and Spring Cleaning bitmasks, brute force, combinatorics, dp	2300	x1718
1411E	Poman Numbers bitmasks, greedy, math, strings	2300	x1555
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1511
1548D1	Gregor and the Odd Cows (Easy) bitmasks, geometry, math, number theory	2300	x1428
1780F	Three Chairs bitmasks, brute force, combinatorics, data structures, dp, number theory, sortings	2300	x1374
327E	Axis Walking bitmasks, combinatorics, constructive algorithms, dp, meet-in-the-middle	2300	x1347
1967C	Fenwick Tree bitmasks, brute force, combinatorics, data structures, dp, math, trees	2300	x1184
1878G	wxhtzdy ORO Tree binary search, bitmasks, brute force, data structures, dfs and similar, implementation, trees	2300	x1096
1955H	The Most Reckless Defense bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths	2300	x1004
429C	Guess the Tree bitmasks, constructive algorithms, dp, greedy, trees	2300	x900
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks, brute force, combinatorics, constructive algorithms, dfs and similar, math	2300	x865
212B	Polycarpus is Looking for Good Substrings bitmasks, hashing, implementation	2300	x322
449D	Jzzhu and Numbers bitmasks, combinatorics, dp	2400	x4090
1709E	XOR Tree bitmasks, data structures, dfs and similar, dsu, greedy, trees	2400	x2445
1523D	Love-Hate bitmasks, brute force, dp, probabilities	2400	x2084
959F	Mahmoud and Ehab and yet another xor task bitmasks, dp, math, matrices	2400	x1940
1257F	Make Them Similar bitmasks, brute force, hashing, meet-in-the-middle	2400	x1939
1469E	A Bit Similar bitmasks, brute force, hashing, string suffix structures, strings, two pointers	2400	x1855
1609E	William The Oblivious bitmasks, data structures, dp, matrices	2400	x1843
1114F	Please, another Queries on Array? bitmasks, data structures, divide and conquer, math, number theory	2400	x1810
1720D2	Xor-Subsequence (hard version) bitmasks, data structures, dp, strings, trees	2400	x1730
1592E	Bored Bakry bitmasks, greedy, math, two pointers	2400	x1544
1401F	Reverse and Swap binary search, bitmasks, data structures	2400	x1527
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1501
1242C	Sum Balance bitmasks, dfs and similar, dp, graphs	2400	x1470
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1450
914E	Palindromes in a Tree bitmasks, data structures, divide and conquer, trees	2400	x1386
1804E	Routing bitmasks, brute force, dfs and similar, dp, graphs	2400	x1359
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1335
1598F	RBS binary search, bitmasks, brute force, data structures, dp	2400	x1322
698C	LRU bitmasks, dp, math, probabilities	2400	x1280
1909E	Multiple Lamps bitmasks, brute force, constructive algorithms, math, number theory	2400	x1246
1934D2	XOR Break --- Game Version bitmasks, games, greedy, interactive	2400	x1190
906C	Party bitmasks, brute force, dp, graphs	2400	x1182
1739E	Cleaning Robot bitmasks, dp	2400	x1169
1935E	Distance Learning Courses in MAC bitmasks, brute force, data structures, greedy, math	2400	x1168
1679E	Typical Party in Dorm bitmasks, combinatorics, dp, strings	2400	x1100
1874B	Jellyfish and Math bitmasks, brute force, dfs and similar, dp, graphs, shortest paths	2400	x1066
780F	Axel and Marston in Bitland bitmasks, dp, graphs, matrices	2400	x1020
744C	Hongcow Buys a Deck of Cards bitmasks, brute force, dp	2400	x1010
1038E	Maximum Matching bitmasks, brute force, dfs and similar, dp, graphs	2400	x952
1007B	Pave the Parallelepiped bitmasks, brute force, combinatorics, math, number theory	2400	x938
1670F	Jee, You See? bitmasks, combinatorics, dp	2400	x919
1620G	Subsequences Galore bitmasks, combinatorics, dp	2400	x857
1146E	Hot is Cold bitmasks, data structures, divide and conquer, implementation	2400	x823
1777F	Comfortably Numb bitmasks, data structures, divide and conquer, strings, trees	2400	x818
21D	Traveling Graph bitmasks, graph matchings, graphs	2400	x796
1009G	Allowed Letters bitmasks, flows, graph matchings, graphs, greedy	2400	x769
1673F	Anti-Theft Road Planning bitmasks, constructive algorithms, divide and conquer, greedy, interactive, math	2400	x768
913E	Logical Expression bitmasks, dp, shortest paths	2400	x744
1423J	Bubble Cup hypothesis bitmasks, constructive algorithms, dp, math	2400	x735
441E	Valera and Number bitmasks, dp, math, probabilities	2400	x673
1765A	Access Levels bitmasks, dsu, flows, graph matchings	2400	x666
1163E	Magical Permutation bitmasks, brute force, constructive algorithms, data structures, graphs, math	2400	x646
367D	Sereja and Sets bitmasks, dfs and similar	2400	x617
354B	Game with Strings bitmasks, dp, games	2400	x448
534F	Simplified Nonogram bitmasks, dp, hashing, meet-in-the-middle	2400	x443
662A	Gambling Nim bitmasks, math, matrices, probabilities	2400	x429
107C	Arrangement bitmasks, dp	2400	x362
1970G3	Min-Fund Prison (Hard) bitmasks, dfs and similar, dp, graphs, trees	2400	x148
986C	AND Graph bitmasks, dfs and similar, dsu, graphs	2500	x2193
1043F	Make It One bitmasks, combinatorics, dp, math, number theory, shortest paths	2500	x2187
528D	Fuzzy Search bitmasks, brute force, fft	2500	x2069
1209E2	Rotate Columns (hard version) bitmasks, dp, greedy, sortings	2500	x1847
1327F	AND Segments bitmasks, combinatorics, data structures, dp, two pointers	2500	x1605
1497D	Genius bitmasks, dp, graphs, number theory	2500	x1483
1550E	Stringforces binary search, bitmasks, brute force, dp, strings, two pointers	2500	x1441
1665E	MinimizOR bitmasks, brute force, data structures, divide and conquer, greedy, implementation, two pointers	2500	x1425
1508C	Complete the MST bitmasks, brute force, data structures, dfs and similar, dsu, graphs, greedy, trees	2500	x1424
1361C	Johnny and Megan's Necklace binary search, bitmasks, constructive algorithms, dfs and similar, dsu, graphs	2500	x1384
543C	Remembering Strings bitmasks, dp	2500	x1356
1438E	Yurii Can Do Everything binary search, bitmasks, brute force, constructive algorithms, divide and conquer, two pointers	2500	x1292
734F	Anton and School bitmasks, constructive algorithms, implementation, math	2500	x1279
1710C	XOR Triangle bitmasks, brute force, constructive algorithms, dp, greedy, math	2500	x1274
1427E	Xum bitmasks, constructive algorithms, math, matrices, number theory	2500	x1265
1479C	Continuous City bitmasks, constructive algorithms	2500	x1256
1583F	Defender of Childhood Dreams bitmasks, constructive algorithms, divide and conquer	2500	x1222
1779F	Xorcerer's Stones bitmasks, constructive algorithms, dp, trees	2500	x1220
1097F	Alex and a TV Show bitmasks, combinatorics, number theory	2500	x1213
1556F	Sports Betting bitmasks, combinatorics, dp, graphs, math, probabilities	2500	x1172
1313D	Happy New Year bitmasks, dp, implementation	2500	x1160
1689E	ANDfinity bitmasks, brute force, constructive algorithms, dfs and similar, dsu, graphs	2500	x1148
333E	Summer Earnings binary search, bitmasks, brute force, geometry, sortings	2500	x1070
1716E	Swap and Maximum Block bitmasks, data structures, dfs and similar, divide and conquer, dp	2500	x1022
1771F	Hossam and Range Minimum Query binary search, bitmasks, data structures, hashing, probabilities, strings, trees	2500	x967
53E	Dead Ends bitmasks, dp	2500	x903
1917F	Construct Tree bitmasks, constructive algorithms, dp, trees	2500	x896
1847F	The Boss's Identity binary search, bitmasks, data structures, dfs and similar, greedy, math, sortings	2500	x854
1498F	Christmas Game bitmasks, data structures, dfs and similar, dp, games, math, trees	2500	x850
1767E	Algebra Flash bitmasks, brute force, dp, graphs, math, meet-in-the-middle, trees	2500	x839
1778E	The Tree Has Fallen! bitmasks, dfs and similar, math, trees	2500	x822
1788F	XOR, Tree, and Queries bitmasks, constructive algorithms, dfs and similar, dsu, graphs, greedy, implementation, trees	2500	x791
1734F	Zeros and Ones bitmasks, divide and conquer, dp, math	2500	x769