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Problemset

99 problems · filtered by 3 tags

#	Name	Rating↕	Solved↕
2215D	EXPloration, EXPloitation, and Gain Some EXPerience! bitmasks brute force dp greedy implementation	2800	162
2194C	Secret message bitmasks brute force dp math number theory	1300	11.6k
2182F1	Christmas Reindeer (easy version) bitmasks brute force combinatorics dp math	2300	1.3k
2173D	Taiga's Carry Chains bitmasks brute force dp greedy math	1900	3.8k
2157G	Isaac's Queries bitmasks brute force constructive algorithms dfs and similar divide and conquer dp greedy interactive math probabilities	2800	672
2138C2	Maple and Tree Beauty (Hard Version) bitmasks brute force dfs and similar dp fft trees	2000	3.6k
2131G	Wafu! bitmasks brute force data structures dfs and similar dp math	2000	3.9k
2086E	Zebra-like Numbers bitmasks brute force constructive algorithms dfs and similar dp greedy math	2400	1.7k
2075D	Equalization bitmasks brute force dp graphs math	2000	6k
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
2064D	Eating binary search bitmasks brute force data structures dp greedy trees two pointers	1900	6k
2061E	Kevin and And bitmasks brute force dp greedy math sortings	2000	4.1k
2056F1	Xor of Median (Easy Version) bitmasks brute force combinatorics dp math	2700	455
2056F2	Xor of Median (Hard Version) bitmasks brute force combinatorics dp math	3000	362
2043F	Nim bitmasks brute force combinatorics dp games greedy implementation shortest paths	2700	918
2029H	Message Spread bitmasks brute force combinatorics dp	3500	111
2028F	Alice's Adventures in Addition bitmasks brute force dp implementation	2700	556
1995D	Cases bitmasks brute force dp strings	2300	3k
1994G	Minecraft bitmasks brute force dp graphs math	2600	1.7k
1990D	Grid Puzzle bitmasks brute force dp greedy implementation	1800	7.9k
1983G	Your Loss bitmasks brute force dp trees	3000	325
1982E	Number of k-good subarrays bitmasks brute force combinatorics divide and conquer dp math meet-in-the-middle	2300	1.9k
1979D	Fixing a Binary String bitmasks brute force constructive algorithms dp greedy hashing strings	1800	8k
1975F	Set bitmasks brute force combinatorics dfs and similar divide and conquer dp math	2600	1.1k
1973F	Maximum GCD Sum Queries bitmasks brute force dp implementation number theory	3100	345
1967C	Fenwick Tree bitmasks brute force combinatorics data structures dp math trees	2300	2.3k
1957D	A BIT of an Inequality bitmasks brute force dp math	1900	6k
1956D	Nene and the Mex Operator bitmasks brute force constructive algorithms divide and conquer dp greedy implementation math	2000	4.9k
1955H	The Most Reckless Defense bitmasks brute force constructive algorithms dp flows graph matchings shortest paths	2300	1.6k
1929E	Sasha and the Happy Tree Cutting bitmasks brute force dfs and similar dp graphs greedy math trees	2300	2.1k
1926F	Vlad and Avoiding X bitmasks brute force dfs and similar dp implementation	2200	2.1k
1900D	Small GCD bitmasks brute force dp math number theory	2000	5.6k
1874B	Jellyfish and Math bitmasks brute force dfs and similar dp graphs shortest paths	2400	1.4k
1870E	Another MEX Problem bitmasks brute force dp shortest paths	2300	3.1k
1862F	Magic Will Save the World binary search bitmasks brute force dp	1800	7.8k
1854B	Earn or Unlock bitmasks brute force dp	2200	4.4k
1847C	Vampiric Powers, anyone? bitmasks brute force dp greedy	1400	15k
1826E	Walk the Runway bitmasks brute force data structures dp graphs implementation sortings	2400	2k
1804E	Routing bitmasks brute force dfs and similar dp graphs	2400	1.7k
1789F	Serval and Brain Power bitmasks brute force dp greedy implementation strings	2700	1k
1780F	Three Chairs bitmasks brute force combinatorics data structures dp number theory sortings	2300	2k
1767E	Algebra Flash bitmasks brute force dp graphs math meet-in-the-middle trees	2500	1.3k
1741G	Kirill and Company bitmasks brute force dfs and similar dp flows graphs shortest paths	2200	2k
1728G	Illumination binary search bitmasks brute force combinatorics dp math two pointers	2700	669
1720D1	Xor-Subsequence (easy version) bitmasks brute force dp strings trees two pointers	1800	6.8k
1710C	XOR Triangle bitmasks brute force constructive algorithms dp greedy math	2500	1.7k
1709F	Multiset of Strings bitmasks brute force dp fft flows graphs math meet-in-the-middle trees	2500	729
1703G	Good Key, Bad Key bitmasks brute force dp greedy math	1600	13k
1661B	Getting Zero bitmasks brute force dfs and similar dp graphs greedy shortest paths	1300	21.1k
1646C	Factorials and Powers of Two bitmasks brute force constructive algorithms dp math	1500	20.5k
1632C	Strange Test binary search bitmasks brute force dp math	1600	14.2k
1598F	RBS binary search bitmasks brute force data structures dp	2400	1.7k
1560F2	Nearest Beautiful Number (hard version) bitmasks brute force constructive algorithms dfs and similar dp greedy	2100	5.1k
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
1550E	Stringforces binary search bitmasks brute force dp strings two pointers	2500	1.9k
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
1511G	Chips on a Board bitmasks brute force data structures dp games two pointers	2700	988
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
1360F	Spy-string bitmasks brute force constructive algorithms dp hashing strings	1700	13.7k
1342F	Make It Ascending bitmasks brute force dp	3000	1.1k
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
1285D	Dr. Evil Underscores bitmasks brute force dfs and similar divide and conquer dp greedy strings trees	1900	8.7k
1245F	Daniel and Spring Cleaning bitmasks brute force combinatorics dp	2300	2.3k
1221G	Graph And Numbers bitmasks brute force combinatorics dp meet-in-the-middle	2900	988
1209E1	Rotate Columns (easy version) bitmasks brute force dp greedy sortings	2000	3.3k
1151B	Dima and a Bad XOR bitmasks brute force constructive algorithms dp	1600	13.1k
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
1006F	Xor-Paths bitmasks brute force dp meet-in-the-middle	2100	7.2k
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
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
812B	Sagheer, the Hausmeister bitmasks brute force dp	1600	5.6k
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
662C	Binary Table bitmasks brute force divide and conquer dp fft math	2600	2.6k
525E	Anya and Cubes binary search bitmasks brute force dp math meet-in-the-middle	2100	4.4k
510D	Fox And Jumping bitmasks brute force dp math	1900	6.5k
476B	Dreamoon and WiFi bitmasks brute force combinatorics dp math probabilities	1300	38k
453B	Little Pony and Harmony Chest bitmasks brute force dp	2000	5.6k
401D	Roman and Numbers bitmasks brute force combinatorics dp number theory	2000	4.7k
379D	New Year Letter bitmasks brute force dp	2000	1.7k
201D	Brand New Problem bitmasks brute force dp	2600	493
165E	Compatible Numbers bitmasks brute force dfs and similar dp	2200	9.8k

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