Problemset - Codeforces

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Codeforces Round #720 (Div. 2)
05:08:40
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bitmasks

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Problems

#	Name
1421A	XORwice bitmasks, greedy, math	800	x16489
202A	LLPS binary search, bitmasks, brute force, greedy, implementation, strings	800	x9277
1494A	ABC String bitmasks, brute force, implementation	900	x14725
579A	Raising Bacteria bitmasks	1000	x27495
467B	Fedor and New Game bitmasks, brute force, constructive algorithms, implementation	1100	x21913
535B	Tavas and SaDDas bitmasks, brute force, combinatorics, implementation	1100	x14433
1202A	You Are Given Two Binary Strings... bitmasks, greedy	1100	x6926
1362B	Johnny and His Hobbies bitmasks, brute force	1200	x14156
1097B	Petr and a Combination Lock bitmasks, brute force, dp	1200	x13899
1420B	Rock and Lever bitmasks, math	1200	x13866
1514B	AND 0, Sum Big bitmasks, combinatorics, math	1200	x11136
743B	Chloe and the sequence binary search, bitmasks, constructive algorithms, implementation	1200	x10137
1042B	Vitamins bitmasks, brute force, dp, implementation	1200	x9130
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x17845
1498B	Box Fitting binary search, bitmasks, data structures, greedy	1300	x9649
96B	Lucky Numbers (easy) binary search, bitmasks, brute force	1300	x8408
912B	New Year's Eve bitmasks, constructive algorithms, number theory	1300	x7557
611B	New Year and Old Property bitmasks, brute force, implementation	1300	x7065
1152B	Neko Performs Cat Furrier Transform bitmasks, constructive algorithms, dfs and similar, math	1300	x6970
27B	Tournament bitmasks, brute force, dfs and similar, greedy	1300	x3241
1362C	Johnny and Another Rating Drop bitmasks, greedy, math	1400	x12621
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x11468
1463B	Find The Array bitmasks, constructive algorithms, greedy	1400	x11032
550B	Preparing Olympiad bitmasks, brute force	1400	x10985
1270C	Make Good bitmasks, constructive algorithms, math	1400	x9952
1095C	Powers Of Two bitmasks, greedy	1400	x9600
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x9482
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x7625
961C	Chessboard bitmasks, brute force, implementation	1400	x4455
1385D	a-Good String bitmasks, brute force, divide and conquer, dp, implementation	1500	x11859
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x9207
437B	The Child and Set bitmasks, greedy, implementation, sortings	1500	x6328
224B	Array bitmasks, implementation, two pointers	1500	x5154
677C	Vanya and Label bitmasks, combinatorics, implementation, strings	1500	x5113
868C	Qualification Rounds bitmasks, brute force, constructive algorithms, dp	1500	x3489
114B	PFAST Inc. bitmasks, brute force, graphs	1500	x2464
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x9266
1151B	Dima and a Bad XOR bitmasks, brute force, constructive algorithms, dp	1600	x7013
1225C	p-binary bitmasks, brute force, math	1600	x6567
913C	Party Lemonade bitmasks, dp, greedy	1600	x6264
878A	Short Program bitmasks, constructive algorithms	1600	x4401
812B	Sagheer, the Hausmeister bitmasks, brute force, dp	1600	x4274
244B	Undoubtedly Lucky Numbers bitmasks, brute force, dfs and similar	1600	x3235
243A	The Brand New Function bitmasks	1600	x3011
291C	Network Mask *special problem, bitmasks, brute force, implementation	1600	x1595
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x8491
1325D	Ehab the Xorcist bitmasks, constructive algorithms, greedy, number theory	1700	x8210
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x8050
1368D	AND, OR and square sum bitmasks, greedy, math	1700	x7951
484A	Bits bitmasks, constructive algorithms	1700	x7332
1332D	Walk on Matrix bitmasks, constructive algorithms, math	1700	x6662
1340B	Nastya and Scoreboard bitmasks, dp, graphs, greedy	1700	x6329
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x6172
1217C	The Number Of Good Substrings binary search, bitmasks, brute force	1700	x5658
1329B	Dreamoon Likes Sequences bitmasks, combinatorics, math	1700	x5216
1051D	Bicolorings bitmasks, dp	1700	x4944
960C	Subsequence Counting bitmasks, constructive algorithms, greedy, implementation	1700	x3153
1146C	Tree Diameter bitmasks, graphs, interactive	1700	x2741
581D	Three Logos bitmasks, brute force, constructive algorithms, geometry, implementation, math	1700	x2735
769D	k-Interesting Pairs Of Integers *special problem, bitmasks, brute force, meet-in-the-middle	1700	x1829
442A	Borya and Hanabi bitmasks, brute force, implementation	1700	x1805
1338B	Edge Weight Assignment bitmasks, constructive algorithms, dfs and similar, greedy, math, trees	1800	x6250
580D	Kefa and Dishes bitmasks, dp	1800	x5987
706D	Vasiliy's Multiset binary search, bitmasks, data structures, trees	1800	x5631
1466E	Apollo versus Pan bitmasks, brute force, math	1800	x5075
1491D	Zookeeper and The Infinite Zoo bitmasks, constructive algorithms, dp, greedy, math	1800	x4617
888E	Maximum Subsequence bitmasks, divide and conquer, meet-in-the-middle	1800	x3527
513B2	Permutations bitmasks, divide and conquer, math	1800	x2368
778B	Bitwise Formula bitmasks, brute force, dfs and similar, expression parsing, implementation	1800	x1886
1285D	Dr. Evil Underscores bitmasks, brute force, dfs and similar, divide and conquer, dp, greedy, strings, trees	1900	x5176
1303D	Fill The Bag bitmasks, greedy	1900	x4891
1205B	Shortest Cycle bitmasks, brute force, graphs, shortest paths	1900	x4814
1470B	Strange Definition bitmasks, graphs, hashing, math, number theory	1900	x4508
1492D	Genius's Gambit bitmasks, constructive algorithms, greedy, math	1900	x4350
1207E	XOR Guessing bitmasks, interactive, math	1900	x4128
1383B	GameGame bitmasks, constructive algorithms, dp, games, greedy, math	1900	x3623
1174D	Ehab and the Expected XOR Problem bitmasks, constructive algorithms	1900	x3604
510D	Fox And Jumping bitmasks, brute force, dp, math	1900	x3562
1144E	Median String bitmasks, math, number theory, strings	1900	x3081
1220D	Alex and Julian bitmasks, math, number theory	1900	x2969
1017D	The Wu bitmasks, brute force, data structures	1900	x2670
959E	Mahmoud and Ehab and the xor-MST bitmasks, dp, graphs, implementation, math	1900	x2656
981D	Bookshelves bitmasks, dp, greedy	1900	x2477
792D	Paths in a Complete Binary Tree bitmasks, trees	1900	x2276
16E	Fish bitmasks, dp, probabilities	1900	x2223
388B	Fox and Minimal path bitmasks, constructive algorithms, graphs, implementation, math	1900	x1928
993B	Open Communication bitmasks, brute force	1900	x1720
417D	Cunning Gena bitmasks, dp, greedy, sortings	1900	x1626
744B	Hongcow's Game bitmasks, divide and conquer, interactive	1900	x1463
285D	Permutation Sum bitmasks, combinatorics, dp, implementation, meet-in-the-middle	1900	x1285
232B	Table bitmasks, combinatorics, dp, math	1900	x1116
309C	Memory for Arrays binary search, bitmasks, greedy	1900	x802
1288D	Minimax Problem binary search, bitmasks, dp	2000	x4371
242E	XOR on Segment bitmasks, data structures	2000	x4130
1391D	505 bitmasks, brute force, constructive algorithms, dp, greedy, implementation	2000	x3628
1415D	XOR-gun bitmasks, brute force, constructive algorithms	2000	x3402
453B	Little Pony and Harmony Chest bitmasks, brute force, dp	2000	x3249
1451E1	Bitwise Queries (Easy Version) bitmasks, constructive algorithms, interactive, math	2000	x2932
877E	Danil and a Part-time Job bitmasks, data structures, trees	2000	x2788
401D	Roman and Numbers bitmasks, brute force, combinatorics, dp, number theory	2000	x2723

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