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

Problemset

95 problems · filtered by 3 tags

#	Name	Rating↕	Solved↕
2241E	Fair and Square combinatorics dp graphs math number theory trees	1600	5.8k
2236F2	Elections in Saransk (hard version) combinatorics dp math number theory	2200	958
2206I	Growth Factor combinatorics dp math number theory	2900	226
2204F	Sum of Fractions binary search brute force combinatorics data structures greedy math number theory two pointers	2200	1.3k
2189D1	Little String (Easy Version) combinatorics dp greedy math number theory	1900	4.2k
2189D2	Little String (Hard Version) combinatorics dp greedy math number theory	2200	2.1k
2176F	Omega Numbers bitmasks combinatorics dp math number theory	2400	1.6k
2158F2	Distinct GCDs (Hard Version) combinatorics constructive algorithms graphs math number theory	3000	287
2147G	Modular Tetration combinatorics math number theory	3100	799
2135E2	Beyond the Palindrome (Hard Version) combinatorics dp math number theory	3500	188
2125C	Count Good Numbers bitmasks combinatorics math number theory	1100	23.3k
2112E	Tree Colorings combinatorics dfs and similar dp graphs math number theory trees	2200	3.5k
2072F	Goodbye, Banker Life 2-sat bitmasks combinatorics constructive algorithms fft math number theory	1700	8.7k
2072G	I've Been Flipping Numbers for 300 Years and Calculated the Sum binary search brute force combinatorics divide and conquer math number theory	2200	2.2k
2065G	Skibidus and Capping combinatorics math number theory	1700	6.5k
2040F	Number of Cubes combinatorics dp math number theory	2700	469
2039F1	Shohag Loves Counting (Easy Version) combinatorics dp math number theory	2800	527
2037G	Natlan Exploring bitmasks combinatorics data structures dp math number theory	2000	3.9k
2008F	Sakurako's Box combinatorics math number theory	1400	16k
1996D	Fun binary search brute force combinatorics math number theory	1500	20k
1994H	Fortnite combinatorics constructive algorithms games greedy hashing interactive math number theory strings	3500	779
1986G1	Permutation Problem (Simple Version) binary search brute force combinatorics data structures math number theory	2200	2k
1985G	D-Function combinatorics math number theory	1600	12.5k
1957E	Carousel of Combinations brute force combinatorics dp math number theory	2400	1.7k
1946E	Girl Permutation combinatorics dp math number theory	2200	3.2k
1931D	Divisible Pairs combinatorics math number theory	1300	32.7k
1931G	One-Dimensional Puzzle combinatorics math number theory	2000	3.8k
1917D	Yet Another Inversions Problem combinatorics data structures dp implementation math number theory	2300	2.1k
1866B	Battling with Numbers combinatorics math number theory	1400	9.4k
1855B	Longest Divisors Interval brute force combinatorics greedy math number theory	900	48.1k
1830C	Hyperregular Bracket Strings combinatorics greedy hashing math number theory sortings	2400	2.3k
1794D	Counting Factorizations combinatorics divide and conquer dp math number theory	1900	4.6k
1770F	Koxia and Sequence bitmasks combinatorics dp math number theory	3100	1k
1768E	Partial Sorting combinatorics math number theory	2300	2.4k
1763D	Valid Bitonic Permutations combinatorics dp implementation math number theory	2200	2.4k
1750D	Count GCD combinatorics math number theory	1800	7.6k
1749D	Counting Arrays combinatorics dp math number theory	1900	6.4k
1748D	ConstructOR bitmasks chinese remainder theorem combinatorics constructive algorithms math number theory	2100	3.3k
1732A	Bestie brute force combinatorics constructive algorithms implementation math number theory	1000	17.8k
1725E	Electrical Efficiency combinatorics data structures dp math number theory trees	2500	640
1716F	Bags with Balls combinatorics dp math number theory	2500	1.5k
1712E1	LCM Sum (easy version) binary search brute force combinatorics math number theory two pointers	2300	2.5k
1687E	Become Big For Me combinatorics constructive algorithms greedy math number theory	3500	323
1673D	Lost Arithmetic Progression combinatorics math number theory	1900	3.6k
1673E	Power or XOR? bitmasks combinatorics math number theory	2500	850
1658B	Marin and Anti-coprime Permutation combinatorics math number theory	800	19.6k
1644F	Basis combinatorics fft math number theory	2900	511
1630E	Expected Components combinatorics math number theory probabilities	2900	621
1626F	A Random Code Problem combinatorics dp math number theory probabilities	2800	922
1610D	Not Quite Lee combinatorics dp math number theory	2000	3.1k
1608D	Dominoes combinatorics fft graphs math number theory	2400	1.6k
1581A	CQXYM Count Permutations combinatorics math number theory	800	14.3k
1559E	Mocha and Stars combinatorics dp fft math number theory	2200	2.8k
1436F	Sum Over Subsets combinatorics math number theory	2800	693
1371E1	Asterism (Easy Version) binary search brute force combinatorics math number theory sortings	1900	5.5k
1371E2	Asterism (Hard Version) binary search combinatorics dp math number theory sortings	2300	2.5k
1359E	Modular Stability combinatorics math number theory	2000	6.8k
1334E	Divisor Paths combinatorics graphs greedy math number theory	2200	3.2k
1305C	Kuroni and Impossible Calculation brute force combinatorics math number theory	1600	19.7k
1278F	Cards combinatorics dp math number theory probabilities	2600	2.7k
1204E	Natasha, Sasha and the Prefix Sums combinatorics dp math number theory	2300	2.2k
1195D1	Submarine in the Rybinsk Sea (easy edition) combinatorics math number theory	1500	8.2k
1195D2	Submarine in the Rybinsk Sea (hard edition) combinatorics math number theory	1800	4.9k
1174E	Ehab and the Expected GCD Problem combinatorics dp math number theory	2500	1.8k
1043F	Make It One bitmasks combinatorics dp math number theory shortest paths	2500	3.1k
1036F	Relatively Prime Powers combinatorics math number theory	2400	1.9k
1007B	Pave the Parallelepiped bitmasks brute force combinatorics math number theory	2400	1.1k
961G	Partitions combinatorics math number theory	2700	1.8k
920G	List Of Integers binary search bitmasks brute force combinatorics math number theory	2200	2.1k
900D	Unusual Sequences bitmasks combinatorics dp math number theory	2000	3.9k
896D	Nephren Runs a Cinema chinese remainder theorem combinatorics math number theory	2900	706
894B	Ralph And His Magic Field combinatorics constructive algorithms math number theory	1800	4.7k
893E	Counting Arrays combinatorics dp math number theory	2000	4.3k
852F	Product transformation combinatorics math number theory	2200	669
840A	Leha and Function combinatorics greedy math number theory sortings	1300	7.6k
839D	Winter is here combinatorics dp math number theory	2200	3.7k
785D	Anton and School - 2 combinatorics dp math number theory	2300	3.9k
773F	Test Data Generation combinatorics divide and conquer dp fft math number theory	3400	281
768F	Barrels and boxes brute force combinatorics math number theory probabilities	2300	1.2k
755G	PolandBall and Many Other Balls combinatorics divide and conquer dp fft math number theory	3200	1.1k
717A	Festival Organization combinatorics math number theory	2900	473
653G	Move by Prime combinatorics math number theory	3100	768
645F	Cowslip Collections combinatorics math number theory	2500	1k
621C	Wet Shark and Flowers combinatorics math number theory probabilities	1700	6.4k
603B	Moodular Arithmetic combinatorics dfs and similar dsu math number theory	1800	2.7k
585E	Present for Vitalik the Philatelist combinatorics math number theory	2900	1.3k
575H	Bots combinatorics dp math number theory	1800	1.9k
559C	Gerald and Giant Chess combinatorics dp math number theory	2200	8.3k
551D	GukiZ and Binary Operations combinatorics implementation math matrices number theory	2100	2.1k
547C	Mike and Foam bitmasks combinatorics dp math number theory	2300	3.5k
520E	Pluses everywhere combinatorics dp math number theory	2200	2.1k
396A	On Number of Decompositions into Multipliers combinatorics math number theory	unrated	1.7k
336D	Vasily the Bear and Beautiful Strings combinatorics math number theory	2100	1.2k
235E	Number Challenge combinatorics dp implementation math number theory	2600	963
223C	Partial Sums combinatorics math number theory	1900	1.8k

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