11,311/11,320 captured·📄 81 PDFs⊘ 0 skipped9 remaining100%

Problemset

269 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
2246E	lce4113 and Security Game bitmasks interactive math probabilities	unrated	539
2242F	Summer Vacation data structures dp probabilities trees	2700	385
2219C	Coloring a Red Black Tree dfs and similar dp greedy math probabilities trees	2300	1.4k
2217F	Interval Game bitmasks combinatorics constructive algorithms dp games greedy math probabilities	2300	885
2200G	Operation Permutation combinatorics dp math probabilities	2200	1.2k
2192F	Fish Fight dp math probabilities	2900	195
2190D	Prufer Vertex combinatorics dsu number theory probabilities trees	2500	1k
2181J	Jinx or Jackpot brute force dp math probabilities	2300	744
2180F1	Control Car (Easy Version) combinatorics dp probabilities	2800	431
2180F2	Control Car (Hard Version) combinatorics dp matrices probabilities	3200	244
2178G	deCH OR Dations bitmasks data structures dp hashing probabilities	2800	630
2174C1	Beautiful Patterns (Easy Version) combinatorics math probabilities	2400	1.2k
2174C2	Beautiful Patterns (Hard Version) combinatorics math probabilities	2500	1.1k
2173E	Shiro's Mirror Duel constructive algorithms greedy interactive probabilities sortings	2200	1.6k
2162G	Beautiful Tree constructive algorithms math probabilities trees	2200	2.9k
2157G	Isaac's Queries bitmasks brute force constructive algorithms dfs and similar divide and conquer dp greedy interactive math probabilities	2800	672
2150E1	Hidden Single (Version 1) divide and conquer interactive math probabilities sortings	2600	2.1k
2150E2	Hidden Single (Version 2) binary search divide and conquer interactive math probabilities	2800	669
2149G	Buratsuta 3 binary search brute force data structures divide and conquer probabilities	2100	2.8k
2140E2	Prime Gaming (Hard Version) bitmasks combinatorics dp probabilities	2500	1.3k
2127F	Hamed and AghaBalaSar brute force combinatorics dp math probabilities	2800	2.1k
2127G1	Inter Active (Easy Version) binary search constructive algorithms interactive probabilities	3400	119
2127G2	Inter Active (Hard Version) binary search bitmasks constructive algorithms graphs implementation interactive math probabilities	3500	126
2127H	23 Rises Again brute force dfs and similar dp flows graph matchings graphs greedy implementation probabilities trees	3100	1.9k
2125D	Segments Covering dp math probabilities	1600	9.6k
2115C	Gellyfish and Eternal Violet combinatorics dp greedy math probabilities	2700	1.5k
2089C1	Key of Like (Easy Version) dp games math probabilities	2200	1.5k
2089C2	Key of Like (Hard Version) dp math probabilities	3100	269
2081A	Math Division bitmasks dp math probabilities	1800	4.2k
2074C	XOR and Triangle bitmasks brute force geometry greedy probabilities	1100	22.4k
2074E	Empty Triangle geometry interactive probabilities	1600	6.8k
2071E	LeaFall combinatorics dp probabilities trees	2600	840
2068A	Condorcet Elections constructive algorithms graphs greedy probabilities	2300	1k
2040E	Control of Randomness combinatorics dfs and similar dp graphs greedy math probabilities trees	2100	2.8k
2031F	Penchick and Even Medians binary search constructive algorithms interactive probabilities	2800	476
2028E	Alice's Adventures in the Rabbit Hole combinatorics dfs and similar dp games greedy math probabilities trees	2300	2k
2023D	Many Games brute force dp greedy math probabilities	2900	612
2020E	Expected Power bitmasks dp math probabilities	2000	4.1k
2003F	Turtle and Three Sequences brute force data structures dp greedy math probabilities two pointers	2800	838
1983E	I Love Balls combinatorics math probabilities	2300	2.5k
1970D2	Arithmancy (Medium) constructive algorithms interactive probabilities strings	2600	332
1957F1	Frequency Mismatch (Easy Version) binary search data structures divide and conquer hashing probabilities trees	2600	706
1957F2	Frequency Mismatch (Hard Version) binary search data structures dfs and similar hashing probabilities trees	2700	659
1951G	Clacking Balls combinatorics math probabilities	3100	506
1949A	Grove brute force dfs and similar dp geometry probabilities	3300	223
1948F	Rare Coins combinatorics math probabilities	2500	1.7k
1925D	Good Trip combinatorics dp math probabilities	1900	4.9k
1924E	Paper Cutting Again combinatorics probabilities	3100	604
1918E	ace5 and Task Order constructive algorithms divide and conquer implementation interactive probabilities sortings	2200	2.1k
1912F	Fugitive Frenzy math probabilities	3100	143
1874C	Jellyfish and EVA dp graphs greedy math probabilities	2300	2.2k
1874D	Jellyfish and Miku divide and conquer dp math probabilities	2800	984
1866M	Mighty Rock Tower brute force combinatorics dp math probabilities	2400	1k
1864E	Guess Game bitmasks data structures games math probabilities sortings strings trees	2100	3.1k
1854C	Expected Destruction combinatorics dp math probabilities	2500	2k
1847E	Triangle Platinum? brute force combinatorics implementation interactive math probabilities	2900	398
1842G	Tenzing and Random Operations combinatorics dp math probabilities	2800	1.7k
1842H	Tenzing and Random Real Numbers bitmasks dp graphs math probabilities	3000	1.1k
1840G1	In Search of Truth (Easy Version) constructive algorithms interactive math meet-in-the-middle probabilities	2200	2.9k
1840G2	In Search of Truth (Hard Version) constructive algorithms interactive math meet-in-the-middle probabilities	2500	1.2k
1835C	Twin Clusters bitmasks brute force constructive algorithms math probabilities	2600	1.2k
1835E	Old Mobile combinatorics dp probabilities	3500	335
1826F	Fading into Fog geometry interactive math probabilities	2800	478
1824B1	LuoTianyi and the Floating Islands (Easy Version) combinatorics math probabilities trees	1800	6.3k
1824B2	LuoTianyi and the Floating Islands (Hard Version) combinatorics dfs and similar math probabilities trees	2300	3.6k
1823F	Random Walk dp graphs math probabilities trees	2600	1.4k
1819E	Roads in E City interactive math probabilities trees	3200	384
1788B	Sum of Two Numbers constructive algorithms greedy implementation math probabilities	1100	22.6k
1784E	Infinite Game brute force combinatorics dp games probabilities	3100	485
1778D	Flexible String Revisit combinatorics dp math probabilities	2100	3.5k
1777D	Score of a Tree bitmasks combinatorics dfs and similar dp math probabilities trees	1900	4.9k
1773A	Amazing Trick constructive algorithms graph matchings math probabilities	1900	1.9k
1773B	BinCoin binary search divide and conquer hashing implementation probabilities trees	2200	982
1773G	Game of Questions bitmasks combinatorics dp fft math probabilities	2800	560
1771F	Hossam and Range Minimum Query binary search bitmasks data structures hashing probabilities strings trees	2500	1.7k
1770E	Koxia and Tree combinatorics dfs and similar dp dsu math probabilities trees	2400	1.6k
1765C	Card Guessing combinatorics dp probabilities	2600	594
1765F	Chemistry Lab dp geometry probabilities	2200	793
1765G	Guess the String constructive algorithms interactive probabilities	2600	486
1761G	Centroid Guess interactive probabilities trees	3500	156
1753C	Wish I Knew How to Sort dp math probabilities	2000	5.4k
1746F	Kazaee data structures hashing probabilities	2800	2.8k
1743D	Problem with Random Tests brute force dp greedy probabilities	1700	8.5k
1743F	Intersection and Union data structures dp matrices probabilities	2300	1.9k
1737E	Ela Goes Hiking combinatorics dp math probabilities	2500	1.1k
1729E	Guess the Cycle Size interactive probabilities	1800	8k
1726D	Edge Split brute force constructive algorithms dfs and similar dsu graphs probabilities trees	2000	4.2k
1713D	Tournament Countdown constructive algorithms greedy interactive number theory probabilities	1800	6.3k
1705F	Mark and the Online Exam bitmasks constructive algorithms interactive probabilities	2900	718
1630E	Expected Components combinatorics math number theory probabilities	2900	621
1626F	A Random Code Problem combinatorics dp math number theory probabilities	2800	922
1623D	Robot Cleaner Revisit implementation math probabilities	2300	1.5k
1612E	Messages brute force dp greedy probabilities sortings	2000	2.9k
1600F	Party Organization brute force math probabilities	2300	640
1599C	Bubble Strike combinatorics math probabilities ternary search	2000	2k
1578G	Game of Chance math probabilities	3500	94
1578M	The Mind constructive algorithms interactive probabilities	2700	543
1571H	Laser Beams *special geometry probabilities	2900	59
1562F	Tubular Bells interactive math number theory probabilities	2900	467
1556F	Sports Betting bitmasks combinatorics dp graphs math probabilities	2500	1.5k

showing 1–100 of 269