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Problemset

2,107 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
1860A	Not a Substring constructive algorithms strings	900	23.8k
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
1852D	Miriany and Matchstick constructive algorithms dp greedy	2800	637
1852E	Rivalries constructive algorithms data structures greedy	3400	240
1851A	Escalator Conversations brute force constructive algorithms math	800	31.7k
1849D	Array Painting constructive algorithms greedy two pointers	1700	10.5k
1846C	Rudolf and the Another Competition constructive algorithms data structures dp greedy sortings	1200	21.8k
1846D	Rudolph and Christmas Tree constructive algorithms geometry math	1200	22.9k
1846F	Rudolph and Mimic constructive algorithms implementation interactive	1800	3.8k
1845A	Forbidden Integer constructive algorithms implementation math number theory	800	51.1k
1844A	Subtraction Game constructive algorithms games	800	26.1k
1844B	Permutations & Primes constructive algorithms math	1000	20.4k
1844D	Row Major constructive algorithms greedy math number theory strings	1400	14k
1844E	Great Grids 2-sat constructive algorithms dfs and similar dsu graphs	2400	2.2k
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
1842D	Tenzing and His Animal Friends constructive algorithms graphs greedy	1900	4.8k
1841A	Game with Board constructive algorithms games	800	26.1k
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
1839C	Insert Zero and Invert Prefix constructive algorithms	1300	13.6k
1839E	Decreasing Game constructive algorithms dfs and similar dp greedy interactive	2400	1.6k
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
1838F	Stuck Conveyor binary search constructive algorithms interactive	3000	396
1837A	Grasshopper on a Line constructive algorithms math	800	58.4k
1837C	Best Binary String constructive algorithms greedy	1000	24.9k
1837D	Bracket Coloring constructive algorithms greedy	1400	23.2k
1835C	Twin Clusters bitmasks brute force constructive algorithms math probabilities	2600	1.2k
1833D	Flipper brute force constructive algorithms greedy	1400	15.3k
1833F	Ira and Flamenco combinatorics constructive algorithms data structures implementation math sortings two pointers	1700	10.6k
1833G	Ksyusha and Chinchilla constructive algorithms dfs and similar dp dsu greedy implementation trees	1800	6.5k
1832D2	Red-Blue Operations (Hard Version) binary search constructive algorithms greedy implementation math	2400	2.4k
1831A	Twin Permutations constructive algorithms	800	49.5k
1831B	Array merging constructive algorithms greedy	1000	37.6k
1828A	Divisible Array constructive algorithms math	800	25.5k
1827E	Bus Routes binary search constructive algorithms dfs and similar greedy trees	3400	1k
1827F	Copium Permutation constructive algorithms data structures greedy	3500	140
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
1818B	Indivisible constructive algorithms	900	17.3k
1817B	Fish Graph brute force constructive algorithms dfs and similar graphs	1900	5.2k
1817D	Toy Machine constructive algorithms games implementation	2700	1k
1816A	Ian Visits Mary constructive algorithms geometry number theory	800	19k
1816B	Grid Reconstruction constructive algorithms greedy	1000	16.8k
1815B	Sum Graph brute force constructive algorithms graphs implementation interactive shortest paths trees	2000	3.7k
1815C	Between constructive algorithms dfs and similar graphs greedy	2200	2.4k
1815F	OH NO1 (-2-3-4) constructive algorithms graphs math	3500	324
1814C	Search in Parallel constructive algorithms greedy sortings	1500	12.6k
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
1812J	Unmysterious Language *special constructive algorithms strings	unrated	6.3k
1811C	Restore the Array constructive algorithms greedy	1100	22.5k
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
1809D	Binary String Sorting constructive algorithms greedy	1800	7.4k
1806B	Mex Master constructive algorithms greedy	900	19.9k
1806C	Sequence Master brute force constructive algorithms math	1600	8.8k
1801A	The Very Beautiful Blanket bitmasks constructive algorithms	1600	9.9k
1800E1	Unforgivable Curse (easy version) brute force constructive algorithms dsu graphs greedy strings	1400	15.9k
1800E2	Unforgivable Curse (hard version) brute force constructive algorithms dfs and similar dsu graphs greedy strings	1500	15.6k
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
1797A	Li Hua and Maze constructive algorithms flows graphs greedy implementation	800	19.7k
1797B	Li Hua and Pattern constructive algorithms greedy	1100	26.2k
1797C	Li Hua and Chess constructive algorithms greedy interactive	1600	9.1k
1795F	Blocking Chips binary search constructive algorithms dfs and similar greedy trees	2400	1.4k
1794B	Not Dividing constructive algorithms greedy math	900	42.9k
1793B	Fedya and Array constructive algorithms math	1100	17.2k
1793C	Dora and Search constructive algorithms data structures two pointers	1200	35.2k
1790E	Vlad and a Pair of Numbers bitmasks constructive algorithms	1400	17.6k
1790G	Tokens on Graph constructive algorithms dfs and similar graphs shortest paths	2300	1.3k
1789D	Serval and Shift-Shift-Shift bitmasks brute force constructive algorithms implementation	2200	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
1788F	XOR, Tree, and Queries bitmasks constructive algorithms dfs and similar dsu graphs greedy implementation trees	2500	1.2k
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
1784B	Letter Exchange constructive algorithms	1900	3.7k
1783A	Make it Beautiful constructive algorithms math sortings	800	52.5k
1783B	Matrix of Differences constructive algorithms math	1100	19.5k
1781C	Equal Frequencies brute force constructive algorithms greedy implementation sortings strings	1600	11k
1781G	Diverse Coloring constructive algorithms trees	3200	298
1780A	Hayato and School constructive algorithms greedy	800	22.8k
1780D	Bit Guessing Game binary search bitmasks constructive algorithms interactive	1800	5.9k
1779A	Hall of Fame constructive algorithms greedy strings	800	24.1k
1779B	MKnez's ConstructiveForces Task constructive algorithms math	900	25.2k

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