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722 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
1919E	Counting Prefixes combinatorics constructive algorithms dp implementation math	2600	1.2k
1918A	Brick Wall constructive algorithms greedy implementation math	800	32.6k
1918G	Permutation of Given constructive algorithms math	2700	706
1917A	Least Product constructive algorithms math	800	27.4k
1917E	Construct Matrix constructive algorithms math	2500	1.7k
1916A	2023 constructive algorithms implementation math number theory	800	28.5k
1916B	Two Divisors constructive algorithms math number theory	1000	32.8k
1916C	Training Before the Olympiad constructive algorithms games greedy implementation math	1200	20.1k
1916D	Mathematical Problem brute force constructive algorithms geometry math	1700	9.9k
1914B	Preparing for the Contest constructive algorithms math	800	33.5k
1912E	Evaluate It and Back Again constructive algorithms implementation math	2200	1.3k
1909B	Make Almost Equal With Mod bitmasks constructive algorithms math number theory	1200	33.3k
1909C	Heavy Intervals constructive algorithms data structures dsu greedy math sortings	1400	13.4k
1909E	Multiple Lamps bitmasks brute force constructive algorithms math number theory	2400	1.7k
1907C	Removal of Unattractive Pairs constructive algorithms greedy math strings	1200	23.5k
1905A	Constructive Problems constructive algorithms math	800	24.6k
1902C	Insert and Equalize brute force constructive algorithms greedy math number theory	1300	17.5k
1901C	Add, Divide and Floor constructive algorithms greedy math	1400	14.5k
1896F	Bracket Xoring constructive algorithms greedy implementation math	2600	1k
1895D	XOR Construction bitmasks constructive algorithms data structures math string suffix structures trees	1900	7.2k
1889B	Doremy's Connecting Plan constructive algorithms greedy math sortings	1700	8.7k
1886A	Sum of Three brute force constructive algorithms math	800	27.9k
1886E	I Wanna be the Team Leader bitmasks constructive algorithms dp greedy math sortings two pointers	2400	1.9k
1878B	Aleksa and Stack constructive algorithms math	800	34.5k
1870A	MEXanized Array constructive algorithms greedy math	800	20.3k
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
1867E1	Salyg1n and Array (simple version) constructive algorithms interactive math	2000	4.4k
1864A	Increasing and Decreasing constructive algorithms greedy implementation math	800	21.5k
1864C	Divisor Chain bitmasks constructive algorithms math number theory	1300	15.5k
1864D	Matrix Cascade brute force constructive algorithms data structures dp greedy math	1700	7.7k
1862D	Ice Cream Balls binary search combinatorics constructive algorithms math	1300	20.2k
1861A	Prime Deletion constructive algorithms math	800	26.2k
1859A	United We Stand constructive algorithms math number theory	800	58.4k
1859B	Olya and Game with Arrays constructive algorithms greedy math sortings	1000	46.7k
1858C	Yet Another Permutation Problem constructive algorithms greedy math number theory	1000	25.8k
1854A1	Dual (Easy Version) constructive algorithms math	1400	16.2k
1854A2	Dual (Hard Version) constructive algorithms math	1900	8k
1854E	Game Bundles brute force constructive algorithms dp greedy math	3000	575
1852B	Imbalanced Arrays constructive algorithms graphs greedy math sortings two pointers	1800	5.5k
1851A	Escalator Conversations brute force constructive algorithms math	800	31.7k
1846D	Rudolph and Christmas Tree constructive algorithms geometry math	1200	22.9k
1845A	Forbidden Integer constructive algorithms implementation math number theory	800	51.1k
1844B	Permutations & Primes constructive algorithms math	1000	20.4k
1844D	Row Major constructive algorithms greedy math number theory strings	1400	14k
1844F1	Min Cost Permutation (Easy Version) brute force constructive algorithms greedy math	2600	937
1844F2	Min Cost Permutation (Hard Version) binary search constructive algorithms data structures greedy math sortings	2800	506
1844G	Tree Weights bitmasks constructive algorithms data structures dfs and similar implementation math matrices number theory trees	3000	1.2k
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
1838A	Blackboard List constructive algorithms math	800	22.8k
1838B	Minimize Permutation Subarrays constructive algorithms math	1100	17.9k
1838C	No Prime Differences constructive algorithms math number theory	1400	17.6k
1837A	Grasshopper on a Line constructive algorithms math	800	58.4k
1835C	Twin Clusters bitmasks brute force constructive algorithms math probabilities	2600	1.2k
1833F	Ira and Flamenco combinatorics constructive algorithms data structures implementation math sortings two pointers	1700	10.6k
1832D2	Red-Blue Operations (Hard Version) binary search constructive algorithms greedy implementation math	2400	2.4k
1828A	Divisible Array constructive algorithms math	800	25.5k
1823A	A-characteristic combinatorics constructive algorithms math	800	17.3k
1823D	Unique Palindromes constructive algorithms math strings	1900	4.4k
1822D	Super-Permutation constructive algorithms math	1200	19.2k
1819C	The Fox and the Complete Tree Traversal constructive algorithms dp implementation math trees	2400	1.8k
1815F	OH NO1 (-2-3-4) constructive algorithms graphs math	3500	324
1812D	Trivial Conjecture *special constructive algorithms math number theory	unrated	4.9k
1812E	Not a Geometry Problem *special constructive algorithms geometry math	unrated	4.3k
1811D	Umka and a Long Flight constructive algorithms implementation math	1600	8.8k
1810B	Candies constructive algorithms math number theory	800	19k
1809C	Sum on Subarrays constructive algorithms greedy math	1500	15.4k
1806C	Sequence Master brute force constructive algorithms math	1600	8.8k
1799B	Equalize by Divide brute force constructive algorithms greedy math	1200	12.9k
1799E	City Union constructive algorithms dfs and similar dsu geometry greedy implementation math	2300	1.4k
1798D	Shocking Arrangement constructive algorithms greedy math	1600	14.8k
1794B	Not Dividing constructive algorithms greedy math	900	42.9k
1793B	Fedya and Array constructive algorithms math	1100	17.2k
1788B	Sum of Two Numbers constructive algorithms greedy implementation math probabilities	1100	22.6k
1788C	Matching Numbers constructive algorithms greedy math	1300	19.6k
1787A	Exponential Equation constructive algorithms math	800	20.5k
1787E	The Harmonization of XOR bitmasks constructive algorithms greedy math	2100	2.8k
1787F	Inverse Transformation constructive algorithms implementation math	2500	841
1783A	Make it Beautiful constructive algorithms math sortings	800	52.5k
1783B	Matrix of Differences constructive algorithms math	1100	19.5k
1779B	MKnez's ConstructiveForces Task constructive algorithms math	900	25.2k
1776D	Teamwork constructive algorithms greedy math	2800	596
1776G	Another Wine Tasting Event combinatorics constructive algorithms math strings	2100	2.4k
1775F	Laboratory on Pluto constructive algorithms dp greedy math	2500	920
1774A	Add Plus Minus Sign constructive algorithms math	800	23.7k
1774B	Coloring constructive algorithms greedy math	1500	14.1k
1773A	Amazing Trick constructive algorithms graph matchings math probabilities	1900	1.9k
1773J	Jumbled Trees constructive algorithms math	2900	155
1772C	Different Differences constructive algorithms greedy math	1000	26.5k
1772D	Absolute Sorting constructive algorithms math	1400	18.9k
1767D	Playoff combinatorics constructive algorithms dp greedy math	1500	11.3k
1763A	Absolute Maximization bitmasks constructive algorithms greedy math	800	17.1k
1759G	Restore the Permutation binary search constructive algorithms data structures greedy math	1900	5.6k
1758D	Range = √Sum binary search brute force constructive algorithms math two pointers	1800	8.6k
1754B	Kevin and Permutation constructive algorithms greedy math	800	19.8k
1750A	Indirect Sort constructive algorithms implementation math	800	17.9k
1748D	ConstructOR bitmasks chinese remainder theorem combinatorics constructive algorithms math number theory	2100	3.3k
1746C	Permutation Operations constructive algorithms greedy implementation math	1300	14.2k
1743G	Antifibonacci Cut bitmasks combinatorics constructive algorithms data structures dp hashing math	3000	381

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