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Problemset

220 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
1665E	MinimizOR bitmasks brute force data structures divide and conquer greedy implementation two pointers	2500	1.9k
1661B	Getting Zero bitmasks brute force dfs and similar dp graphs greedy shortest paths	1300	21.1k
1659E	AND-MEX Walk bitmasks brute force constructive algorithms dfs and similar dsu graphs	2200	2k
1658D2	388535 (Hard Version) bitmasks brute force data structures math	2300	3.2k
1646C	Factorials and Powers of Two bitmasks brute force constructive algorithms dp math	1500	20.5k
1641D	Two Arrays bitmasks brute force combinatorics greedy hashing math two pointers	2700	1.6k
1632C	Strange Test binary search bitmasks brute force dp math	1600	14.2k
1622E	Math Test bitmasks brute force greedy	2200	2.3k
1599J	Bob's Beautiful Array bitmasks brute force greedy	2600	352
1598F	RBS binary search bitmasks brute force data structures dp	2400	1.7k
1569E	Playoff Restoration bitmasks brute force hashing implementation meet-in-the-middle	2600	901
1560F1	Nearest Beautiful Number (easy version) binary search bitmasks brute force constructive algorithms dfs and similar greedy	1900	6.8k
1560F2	Nearest Beautiful Number (hard version) bitmasks brute force constructive algorithms dfs and similar dp greedy	2100	5.1k
1554B	Cobb bitmasks brute force greedy math	1700	13.9k
1553C	Penalty bitmasks brute force dp greedy	1200	20k
1552D	Array Differentiation bitmasks brute force constructive algorithms dfs and similar dp graphs math	1800	8k
1552G	A Serious Referee bitmasks brute force dfs and similar sortings	3000	687
1550E	Stringforces binary search bitmasks brute force dp strings two pointers	2500	1.9k
1543C	Need for Pink Slips bitmasks brute force dfs and similar implementation math probabilities	1900	5.7k
1523D	Love-Hate bitmasks brute force dp probabilities	2400	2.5k
1519F	Chests and Keys bitmasks brute force dfs and similar dp flows	3200	797
1516B	AGAGA XOOORRR bitmasks brute force dp greedy	1500	26.6k
1515H	Phoenix and Bits bitmasks brute force data structures sortings	3500	357
1511G	Chips on a Board bitmasks brute force data structures dp games two pointers	2700	988
1508C	Complete the MST bitmasks brute force data structures dfs and similar dsu graphs greedy trees	2500	1.8k
1500C	Matrix Sorting bitmasks brute force constructive algorithms greedy two pointers	2600	983
1494A	ABC String bitmasks brute force implementation	900	23k
1494B	Berland Crossword bitmasks brute force greedy implementation	1400	15.4k
1479D	Odd Mineral Resource binary search bitmasks brute force data structures probabilities trees	2900	1.4k
1469E	A Bit Similar bitmasks brute force hashing string suffix structures strings two pointers	2400	2.2k
1466E	Apollo versus Pan bitmasks brute force math	1800	8.5k
1438E	Yurii Can Do Everything binary search bitmasks brute force constructive algorithms divide and conquer two pointers	2500	1.5k
1415D	XOR-gun bitmasks brute force constructive algorithms	2000	6.3k
1400G	Mercenaries bitmasks brute force combinatorics dp dsu math two pointers	2600	1.2k
1395C	Boboniu and Bit Operations bitmasks brute force dp greedy	1600	15.4k
1391D	505 bitmasks brute force constructive algorithms dp greedy implementation	2000	5.8k
1385D	a-Good String bitmasks brute force divide and conquer dp implementation	1500	22.3k
1362B	Johnny and His Hobbies bitmasks brute force	1200	21.3k
1360F	Spy-string bitmasks brute force constructive algorithms dp hashing strings	1700	13.7k
1360H	Binary Median binary search bitmasks brute force constructive algorithms	2100	4.9k
1342F	Make It Ascending bitmasks brute force dp	3000	1.1k
1338C	Perfect Triples bitmasks brute force constructive algorithms divide and conquer math	2200	3.5k
1336E1	Chiori and Doll Picking (easy version) bitmasks brute force combinatorics math	2700	902
1336E2	Chiori and Doll Picking (hard version) bitmasks brute force combinatorics math	3500	706
1334G	Substring Search bitmasks brute force fft	2900	468
1326F1	Wise Men (Easy Version) bitmasks brute force dp meet-in-the-middle	2600	1.1k
1305G	Kuroni and Antihype bitmasks brute force dp dsu graphs	3500	1.5k
1302F	Keep talking and nobody explodes -- easy bitmasks brute force expression parsing	unrated	77
1285D	Dr. Evil Underscores bitmasks brute force dfs and similar divide and conquer dp greedy strings trees	1900	8.7k
1257F	Make Them Similar bitmasks brute force hashing meet-in-the-middle	2400	2.4k
1245F	Daniel and Spring Cleaning bitmasks brute force combinatorics dp	2300	2.3k
1225C	p-binary bitmasks brute force math	1600	9.9k
1221G	Graph And Numbers bitmasks brute force combinatorics dp meet-in-the-middle	2900	988
1217C	The Number Of Good Substrings binary search bitmasks brute force	1700	7.9k
1209E1	Rotate Columns (easy version) bitmasks brute force dp greedy sortings	2000	3.3k
1205B	Shortest Cycle bitmasks brute force graphs shortest paths	1900	7.6k
1194E	Count The Rectangles bitmasks brute force data structures geometry sortings	2200	2.1k
1185F	Two Pizzas bitmasks brute force	2100	2.3k
1166E	The LCMs Must be Large bitmasks brute force constructive algorithms math number theory	2100	3k
1163E	Magical Permutation bitmasks brute force constructive algorithms data structures graphs math	2400	1.1k
1151B	Dima and a Bad XOR bitmasks brute force constructive algorithms dp	1600	13.1k
1145C	Mystery Circuit bitmasks brute force	unrated	837
1105E	Helping Hiasat bitmasks brute force dp meet-in-the-middle	2200	2k
1102F	Elongated Matrix binary search bitmasks brute force dp graphs	2000	2.4k
1097B	Petr and a Combination Lock bitmasks brute force dp	1200	37.1k
1097H	Mateusz and an Infinite Sequence bitmasks brute force dp strings	3400	250
1042B	Vitamins bitmasks brute force dp implementation	1200	19.6k
1038E	Maximum Matching bitmasks brute force dfs and similar dp graphs	2400	1.1k
1036G	Sources and Sinks bitmasks brute force dfs and similar	2700	472
1033F	Boolean Computer bitmasks brute force fft math	2800	500
1017D	The Wu bitmasks brute force data structures	1900	4.1k
1007B	Pave the Parallelepiped bitmasks brute force combinatorics math number theory	2400	1.1k
1006F	Xor-Paths bitmasks brute force dp meet-in-the-middle	2100	7.2k
993B	Open Communication bitmasks brute force	1900	2.1k
993C	Careful Maneuvering bitmasks brute force geometry	2100	1.8k
979D	Kuro and GCD and XOR and SUM binary search bitmasks brute force data structures dp dsu greedy math number theory strings trees	2200	2.3k
961C	Chessboard bitmasks brute force implementation	1400	5.7k
920G	List Of Integers binary search bitmasks brute force combinatorics math number theory	2200	2.1k
914F	Substrings in a String bitmasks brute force data structures string suffix structures strings	3000	2.5k
906C	Party bitmasks brute force dp graphs	2400	1.6k
868C	Qualification Rounds bitmasks brute force constructive algorithms dp	1500	5.1k
868D	Huge Strings bitmasks brute force dp implementation strings	2200	1k
865E	Hex Dyslexia bitmasks brute force dp graphs	3300	162
865F	Egg Roulette bitmasks brute force divide and conquer math meet-in-the-middle	3300	81
850E	Random Elections bitmasks brute force divide and conquer fft math	2800	570
812B	Sagheer, the Hausmeister bitmasks brute force dp	1600	5.6k
778B	Bitwise Formula bitmasks brute force dfs and similar expression parsing implementation	1800	2.5k
769D	k-Interesting Pairs Of Integers *special bitmasks brute force meet-in-the-middle	1700	2.6k
754E	Dasha and cyclic table bitmasks brute force fft strings trees	2600	601
750G	New Year and Binary Tree Paths bitmasks brute force combinatorics dp	3200	617
744C	Hongcow Buys a Deck of Cards bitmasks brute force dp	2400	1.4k
743E	Vladik and cards binary search bitmasks brute force dp	2200	1.7k
685E	Travelling Through the Snow Queen's Kingdom bitmasks brute force divide and conquer graphs	2800	659
662C	Binary Table bitmasks brute force divide and conquer dp fft math	2600	2.6k
611B	New Year and Old Property bitmasks brute force implementation	1300	11.2k
581D	Three Logos bitmasks brute force constructive algorithms geometry implementation math	1700	4.9k
575C	Party bitmasks brute force graph matchings	2700	240
550B	Preparing Olympiad bitmasks brute force	1400	28.6k
535B	Tavas and SaDDas bitmasks brute force combinatorics implementation	1100	27k
528D	Fuzzy Search bitmasks brute force fft	2500	3k

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