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Problemset

96 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
2242E	Product of Closures bitmasks brute force constructive algorithms greedy implementation math number theory	2200	1.4k
2236G	Criterion in Burlandia binary search bitmasks brute force data structures dfs and similar divide and conquer implementation trees two pointers	2600	385
2215D	EXPloration, EXPloitation, and Gain Some EXPerience! bitmasks brute force dp greedy implementation	2800	162
2180G	Balance bitmasks combinatorics implementation math	3500	154
2179H	Blackslex and Plants bitmasks data structures dp implementation math	2200	1.4k
2170A	Maximum Neighborhood bitmasks brute force greedy implementation math	800	20.6k
2153F	Odd Queries on Odd Array bitmasks brute force data structures implementation trees	2900	337
2127G2	Inter Active (Hard Version) binary search bitmasks constructive algorithms graphs implementation interactive math probabilities	3500	126
2108B	SUMdamental Decomposition bitmasks constructive algorithms greedy implementation math	1300	14.9k
2103F	Maximize Nor bitmasks data structures dp implementation sortings	2600	634
2093D	Skibidi Table bitmasks implementation	1400	12.5k
2081C	Quaternary Matrix bitmasks constructive algorithms greedy implementation matrices	2700	372
2077B	Finding OR Sum bitmasks constructive algorithms implementation interactive math	1900	3.7k
2075E	XOR Matrix bitmasks combinatorics dp implementation math	2500	1.2k
2074F	Counting Necessary Nodes bitmasks divide and conquer greedy implementation math	2000	2.5k
2071D1	Infinite Sequence (Easy Version) bitmasks brute force dp implementation math	1800	6.9k
2071D2	Infinite Sequence (Hard Version) bitmasks brute force constructive algorithms data structures dp implementation math	2500	1.1k
2049E	Broken Queries binary search bitmasks brute force constructive algorithms implementation interactive	2400	1.6k
2049F	MEX OR Mania bitmasks brute force data structures dsu implementation	2700	600
2048C	Kevin and Binary Strings bitmasks brute force greedy implementation strings	1200	15.4k
2043E	Matrix Transformation bitmasks brute force data structures dfs and similar graphs greedy implementation	2300	1.9k
2043F	Nim bitmasks brute force combinatorics dp games greedy implementation shortest paths	2700	918
2038D	Divide OR Conquer binary search bitmasks data structures dp implementation	2400	888
2028F	Alice's Adventures in Addition bitmasks brute force dp implementation	2700	556
2020C	Bitwise Balancing bitmasks hashing implementation math schedules ternary search	1400	18.7k
1993E	Xor-Grid Problem bitmasks constructive algorithms dp implementation	2700	741
1990D	Grid Puzzle bitmasks brute force dp greedy implementation	1800	7.9k
1981C	Turtle and an Incomplete Sequence bitmasks brute force constructive algorithms greedy implementation math	1800	6.4k
1973F	Maximum GCD Sum Queries bitmasks brute force dp implementation number theory	3100	345
1957B	A BIT of a Construction bitmasks constructive algorithms greedy implementation	1100	20.7k
1956D	Nene and the Mex Operator bitmasks brute force constructive algorithms divide and conquer dp greedy implementation math	2000	4.9k
1950F	0, 1, 2, Tree! bitmasks brute force greedy implementation trees	1700	11.5k
1950G	Shuffling Songs bitmasks dfs and similar dp graphs hashing implementation strings	1900	6.3k
1946D	Birthday Gift bitmasks brute force constructive algorithms greedy implementation	1900	5.7k
1930D2	Sum over all Substrings (Hard Version) bitmasks divide and conquer dp dsu greedy implementation strings	2100	3.1k
1926E	Vlad and an Odd Ordering binary search bitmasks data structures dp implementation math number theory	1500	15.2k
1926F	Vlad and Avoiding X bitmasks brute force dfs and similar dp implementation	2200	2.1k
1918C	XOR-distance bitmasks greedy implementation math	1400	17.1k
1915A	Odd One Out bitmasks implementation	800	82.1k
1915B	Not Quite Latin Square bitmasks brute force implementation	800	51.3k
1878G	wxhtzdy ORO Tree binary search bitmasks brute force data structures dfs and similar implementation trees	2300	1.5k
1868B1	Candy Party (Easy Version) bitmasks constructive algorithms graphs greedy implementation math	1700	8.4k
1868B2	Candy Party (Hard Version) bitmasks constructive algorithms dp greedy implementation math	2100	2.8k
1856E2	PermuTree (hard version) bitmasks dfs and similar dp fft greedy implementation math trees	2700	1.8k
1844G	Tree Weights bitmasks constructive algorithms data structures dfs and similar implementation math matrices number theory trees	3000	1.2k
1835F	Good Graph bitmasks dfs and similar graph matchings graphs implementation	3500	347
1829C	Mr. Perfectly Fine bitmasks greedy implementation	800	32.9k
1826E	Walk the Runway bitmasks brute force data structures dp graphs implementation sortings	2400	2k
1807G2	Subsequence Addition (Hard Version) bitmasks dp greedy implementation sortings	1100	29.4k
1789D	Serval and Shift-Shift-Shift bitmasks brute force constructive algorithms implementation	2200	2k
1789F	Serval and Brain Power bitmasks brute force dp greedy implementation strings	2700	1k
1788F	XOR, Tree, and Queries bitmasks constructive algorithms dfs and similar dsu graphs greedy implementation trees	2500	1.2k
1732C2	Sheikh (Hard Version) binary search bitmasks brute force greedy implementation two pointers	2100	3.2k
1665E	MinimizOR bitmasks brute force data structures divide and conquer greedy implementation two pointers	2500	1.9k
1625D	Binary Spiders bitmasks data structures implementation math sortings trees	2300	2.4k
1618F	Reverse bitmasks constructive algorithms dfs and similar implementation math strings	2000	4.8k
1605D	Treelabeling bitmasks constructive algorithms dfs and similar games greedy implementation trees	2100	3.3k
1569E	Playoff Restoration bitmasks brute force hashing implementation meet-in-the-middle	2600	901
1554C	Mikasa binary search bitmasks greedy implementation	1800	9.9k
1543C	Need for Pink Slips bitmasks brute force dfs and similar implementation math probabilities	1900	5.7k
1494A	ABC String bitmasks brute force implementation	900	23k
1494B	Berland Crossword bitmasks brute force greedy implementation	1400	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
1313D	Happy New Year bitmasks dp implementation	2500	1.6k
1312C	Adding Powers bitmasks greedy implementation math number theory ternary search	1400	18.5k
1146E	Hot is Cold bitmasks data structures divide and conquer implementation	2400	1.1k
1088D	Ehab and another another xor problem bitmasks constructive algorithms implementation interactive	2000	3.2k
1042B	Vitamins bitmasks brute force dp implementation	1200	19.6k
961C	Chessboard bitmasks brute force implementation	1400	5.7k
960C	Subsequence Counting bitmasks constructive algorithms greedy implementation	1700	4.2k
959E	Mahmoud and Ehab and the xor-MST bitmasks dp graphs implementation math	1900	3.8k
868D	Huge Strings bitmasks brute force dp implementation strings	2200	1k
778B	Bitwise Formula bitmasks brute force dfs and similar expression parsing implementation	1800	2.5k
743B	Chloe and the sequence binary search bitmasks constructive algorithms implementation	1200	16.2k
734F	Anton and School bitmasks constructive algorithms implementation math	2500	1.4k
707D	Persistent Bookcase bitmasks data structures dfs and similar implementation	2200	3.1k
677C	Vanya and Label bitmasks combinatorics implementation strings	1500	7k
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
535B	Tavas and SaDDas bitmasks brute force combinatorics implementation	1100	27k
467B	Fedor and New Game bitmasks brute force constructive algorithms implementation	1100	43.7k
442A	Borya and Hanabi bitmasks brute force implementation	1700	2.4k
437B	The Child and Set bitmasks greedy implementation sortings	1500	10.5k
388B	Fox and Minimal path bitmasks constructive algorithms graphs implementation math	1900	2.6k
336E	Vasily the Bear and Painting Square bitmasks combinatorics dp implementation	2700	158
333D	Characteristics of Rectangles binary search bitmasks brute force implementation sortings	2100	2.3k
291C	Network Mask *special bitmasks brute force implementation	1600	1.9k
285D	Permutation Sum bitmasks combinatorics dp implementation meet-in-the-middle	1900	1.7k
276D	Little Girl and Maximum XOR bitmasks dp greedy implementation math	1700	16.8k
225D	Snake bitmasks dfs and similar graphs implementation	2200	1.1k
224B	Array bitmasks implementation two pointers	1500	8.1k
212B	Polycarpus is Looking for Good Substrings bitmasks hashing implementation	2300	399
202A	LLPS binary search bitmasks brute force greedy implementation strings	800	20.1k
97D	Robot in Basement bitmasks brute force implementation	2700	386
63E	Sweets Game bitmasks dfs and similar dp games implementation	2000	888

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