Problemset - Codeforces

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Codeforces Round #630 (Div. 2)
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bitmasks

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Problems

#	Name
1327G	Letters and Question Marks bitmasks, dp, string suffix structures	2900	x156
1327F	AND Segments bitmasks, combinatorics, data structures, dp, two pointers	2500	x487
1326F2	Wise Men (Hard Version) bitmasks, dp, math	3200	x95
1326F1	Wise Men (Easy Version) bitmasks, brute force, dp, meet-in-the-middle	2600	x394
1325D	Ehab the Xorcist bitmasks, constructive algorithms, greedy, number theory	1700	x5639
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x7713
1322D	Reality Show bitmasks, dp	2800	x243
1322B	Present binary search, bitmasks, constructive algorithms, data structures, math, sortings	2100	x1885
1316E	Team Building bitmasks, dp, greedy, sortings	2300	x1309
1305G	Kuroni and Antihype bitmasks, brute force, dp, dsu, graphs	3300	x164
1313D	Happy New Year bitmasks, dp, implementation	2600	x375
1303D	Fill The Bag bitmasks, greedy	1800	x3574
1299D	Around the World bitmasks, combinatorics, dfs and similar, dp, graphs, math, trees	2900	x169
1302F	Keep talking and nobody explodes -- easy bitmasks, brute force, expression parsing		x65
1292F	Nora's Toy Boxes bitmasks, combinatorics, dp	3400	x46
1288D	Minimax Problem binary search, bitmasks, dp	2000	x3075
1285D	Dr. Evil Underscores bitmasks, brute force, dfs and similar, divide and conquer, dp, greedy, strings, trees	1800	x3677
1270C	Make Good bitmasks, constructive algorithms, math	1500	x7299
1261F	Xor-Set bitmasks, divide and conquer, math	3100	x112
1257F	Make Them Similar bitmasks, brute force, hashing, meet-in-the-middle	2400	x1092
1242C	Sum Balance bitmasks, dfs and similar, dp, graphs	2400	x907
1245F	Daniel and Spring Cleaning bitmasks, brute force, combinatorics, dp	2300	x992
1225G	To Make 1 bitmasks, constructive algorithms, dp, greedy, number theory	3000	x147
1225C	p-binary bitmasks, brute force, math	1600	x5010
1238E	Keyboard Purchase bitmasks, dp	2200	x1402
1234F	Yet Another Substring Reverse bitmasks, dp	2400	x1271
1221G	Graph And Numbers bitmasks, brute force, combinatorics, dp, meet-in-the-middle	2900	x203
1220D	Alex and Julian bitmasks, math, number theory	1900	x2423
1215E	Marbles bitmasks, dp	2200	x1561
1209E2	Rotate Columns (hard version) bitmasks, dp, greedy, sortings	2400	x926
1209E1	Rotate Columns (easy version) bitmasks, brute force, dp, greedy, sortings	2000	x1628
1217C	The Number Of Good Substrings binary search, bitmasks, brute force	1600	x4577
1214G	Feeling Good bitmasks, data structures	3100	x123
1208F	Bits And Pieces bitmasks, dfs and similar, dp, greedy	2600	x807
1207E	XOR Guessing bitmasks, interactive, math	1800	x3324
1205B	Shortest Cycle bitmasks, brute force, graphs, shortest paths	1900	x3843
1202A	You Are Given Two Binary Strings... bitmasks, greedy	1100	x5555
1194E	Count The Rectangles bitmasks, brute force, data structures, geometry, sortings	2200	x1083
1185G1	Playlist for Polycarp (easy version) bitmasks, combinatorics, dp	2100	x1463
1185F	Two Pizzas bitmasks, brute force	2200	x1118
1174D	Ehab and the Expected XOR Problem bitmasks, constructive algorithms	1900	x2951
1148F	Foo Fighters bitmasks, constructive algorithms	2500	x503
1168C	And Reachability bitmasks, dp	2400	x1317
1166E	The LCMs Must be Large bitmasks, brute force, constructive algorithms, math, number theory	2000	x1730
1163E	Magical Permutation bitmasks, brute force, constructive algorithms, data structures, graphs, math	2800	x297
1152F2	Neko Rules the Catniverse (Large Version) bitmasks, dp, matrices	2900	x156
1152F1	Neko Rules the Catniverse (Small Version) bitmasks, dp, matrices	2900	x171
1152B	Neko Performs Cat Furrier Transform bitmasks, constructive algorithms, dfs and similar, math	1300	x5746
1146E	Hot is Cold bitmasks, data structures, divide and conquer, implementation	2400	x507
1146C	Tree Diameter bitmasks, graphs, interactive	1700	x2273
1151B	Dima and a Bad XOR bitmasks, brute force, constructive algorithms, dp	1600	x5146
1145C	Mystery Circuit bitmasks, brute force		x588
1144E	Median String bitmasks, math, number theory, strings	1900	x2547
1117F	Crisp String bitmasks, dp	2600	x260
1117E	Decypher the String bitmasks, chinese remainder theorem, constructive algorithms, interactive, math	2200	x900
1114F	Please, another Queries on Array? bitmasks, data structures, divide and conquer, math, number theory	2500	x892
1103D	Professional layer bitmasks, dp	3000	x189
1105E	Helping Hiasat bitmasks, brute force, dp, meet-in-the-middle	2200	x1004
1102F	Elongated Matrix binary search, bitmasks, brute force, dp, graphs	2400	x915
1097H	Mateusz and an Infinite Sequence bitmasks, brute force, dp, strings	3000	x48
1097F	Alex and a TV Show bitmasks, combinatorics, number theory	2400	x699
1097B	Petr and a Combination Lock bitmasks, brute force, dp	1200	x10183
1095C	Powers Of Two bitmasks, greedy	1400	x7005
1093G	Multidimensional Queries bitmasks, data structures	2200	x990
1088D	Ehab and another another xor problem bitmasks, constructive algorithms, implementation, interactive	2000	x1705
1043F	Make It One bitmasks, combinatorics, dp, math, number theory, shortest paths	2500	x948
1073E	Segment Sum bitmasks, combinatorics, dp, math	2300	x1125
1033F	Boolean Computer bitmasks, brute force, fft, math	2800	x213
1030E	Vasya and Good Sequences bitmasks, dp	2100	x1877
1034E	Little C Loves 3 III bitmasks, dp, math	3200	x110
1051D	Bicolorings bitmasks, dp	1700	x3927
1042B	Vitamins bitmasks, brute force, dp, implementation	1200	x6580
1036G	Sources and Sinks bitmasks, brute force, dfs and similar	2800	x217
1038E	Maximum Matching bitmasks, brute force, dfs and similar, dp, graphs	2400	x672
1027G	X-mouse in the Campus bitmasks, math, number theory	2800	x163
1017D	The Wu bitmasks, brute force, data structures	1900	x2375
1016G	Appropriate Team bitmasks, math, number theory	2800	x134
1006F	Xor-Paths bitmasks, brute force, dp, meet-in-the-middle	2400	x1815
1009G	Allowed Letters bitmasks, flows, graph matchings, graphs, greedy	2500	x362
1007B	Pave the Parallelepiped bitmasks, brute force, combinatorics, math, number theory	2400	x672
1004F	Sonya and Bitwise OR bitmasks, data structures, divide and conquer	2900	x210
993B	Open Communication bitmasks, brute force	1900	x1544
993C	Careful Maneuvering bitmasks, brute force, geometry	2100	x1073
986C	AND Graph bitmasks, dfs and similar, dsu, graphs	2300	x1225
981E	Addition on Segments bitmasks, data structures, divide and conquer, dp	2100	x1130
981D	Bookshelves bitmasks, dp, greedy	1800	x2057
979D	Kuro and GCD and XOR and SUM binary search, bitmasks, brute force, data structures, dp, dsu, greedy, math, number theory, strings, trees	2200	x985
960C	Subsequence Counting bitmasks, constructive algorithms, greedy, implementation	1700	x2722
961C	Chessboard bitmasks, brute force, implementation	1400	x3848
959F	Mahmoud and Ehab and yet another xor task bitmasks, dp, math, matrices	2600	x655
959E	Mahmoud and Ehab and the xor-MST bitmasks, dp, graphs, implementation, math	1900	x2222
938G	Shortest Path Queries bitmasks, data structures, dsu, graphs	2900	x225
938F	Erasing Substrings bitmasks, dp, greedy	2600	x231
920G	List Of Integers binary search, bitmasks, brute force, combinatorics, math, number theory	2300	x931
914G	Sum the Fibonacci bitmasks, divide and conquer, dp, fft, math	2500	x404
914F	Substrings in a String bitmasks, brute force, data structures, string suffix structures, strings	2900	x424
914E	Palindromes in a Tree bitmasks, data structures, divide and conquer, trees	2400	x642
916B	Jamie and Binary Sequence (changed after round) bitmasks, greedy, math	1700	x1223
913E	Logical Expression bitmasks, dp, shortest paths	2400	x560
913C	Party Lemonade bitmasks, dp, greedy	1600	x5234

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