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Problemset

196 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
2227D	Palindromex binary search brute force constructive algorithms data structures greedy implementation two pointers	1200	13.9k
2222D	Permutation Construction constructive algorithms data structures sortings	1800	4k
2217E	Definitely Larger binary search constructive algorithms data structures graphs greedy sortings	2000	2.5k
2215E	Star Map constructive algorithms data structures geometry greedy sortings	2700	217
2205F	Simons and Reconstructing His Roads constructive algorithms data structures dsu graphs	2400	714
2201F2	Monotone Monochrome Matrices (Hard Version) constructive algorithms data structures hashing math	2800	461
2183D2	Tree Coloring (Hard Version) combinatorics constructive algorithms data structures dfs and similar greedy implementation trees	2100	2.6k
2171F	Rae Taylor and Trees (hard version) binary search constructive algorithms data structures dp dsu greedy implementation trees	1600	7.6k
2146E	Yet Another MEX Problem brute force constructive algorithms data structures divide and conquer greedy hashing	2300	2.2k
2128E2	Submedians (Hard Version) binary search constructive algorithms data structures math two pointers	2600	818
2127E	Ancient Tree constructive algorithms data structures dfs and similar dsu greedy trees	2100	4.4k
2111D	Creating a Schedule constructive algorithms data structures greedy implementation sortings	1400	12.3k
2091G	Gleb and Boating brute force constructive algorithms data structures dp graphs greedy math number theory shortest paths	2300	1.6k
2084C	You Soared Afar With Grace constructive algorithms data structures greedy implementation	1400	12k
2084F	Skyscape constructive algorithms data structures greedy	2900	519
2077E	Another Folding Strip combinatorics constructive algorithms data structures divide and conquer dp greedy math	2700	627
2071C	Trapmigiano Reggiano constructive algorithms data structures dfs and similar dp greedy sortings trees	1700	9.9k
2071D2	Infinite Sequence (Hard Version) bitmasks brute force constructive algorithms data structures dp implementation math	2500	1.1k
2070E	Game with Binary String constructive algorithms data structures divide and conquer games greedy math	2200	1.9k
2066B	White Magic constructive algorithms data structures dp greedy implementation	1900	5.6k
2063B	Subsequence Update constructive algorithms data structures greedy sortings	1100	23.6k
2059E2	Stop Gaming (Hard Version) brute force constructive algorithms data structures hashing strings	2900	355
2055E	Haystacks brute force constructive algorithms data structures greedy sortings	2800	496
2046F1	Yandex Cuneiform (Easy Version) constructive algorithms data structures greedy	3300	142
2046F2	Yandex Cuneiform (Hard Version) constructive algorithms data structures greedy implementation	3500	110
2044H	Hard Demon Problem constructive algorithms data structures dp implementation math	2100	2.7k
2036E	Reverse the Rivers binary search constructive algorithms data structures greedy	1600	9.8k
2032D	Genokraken constructive algorithms data structures graphs greedy implementation interactive trees two pointers	1800	6.3k
2032E	Balanced constructive algorithms data structures greedy implementation math	2400	1.4k
2029D	Cool Graph constructive algorithms data structures dfs and similar dsu graphs greedy trees	1900	4k
2028D	Alice's Adventures in Cards constructive algorithms data structures dp graphs greedy implementation ternary search	2000	3.8k
2026C	Action Figures binary search brute force constructive algorithms data structures greedy implementation	1500	12.9k
2021C2	Adjust The Presentation (Hard Version) constructive algorithms data structures greedy implementation sortings	1900	4.6k
2001D	Longest Max Min Subsequence brute force constructive algorithms data structures greedy implementation	1900	6.6k
1997C	Even Positions constructive algorithms data structures greedy	1100	25.8k
1983D	Swap Dilemma constructive algorithms data structures divide and conquer greedy math sortings	1700	11.5k
1980E	Permutation of Rows and Columns constructive algorithms data structures greedy hashing implementation math matrices sortings	1600	13.3k
1979E	Manhattan Triangle binary search constructive algorithms data structures geometry implementation two pointers	2400	1.9k
1978C	Manhattan Permutations constructive algorithms data structures greedy implementation math	1300	18k
1956F	Nene and the Passing Game constructive algorithms data structures dsu graphs sortings	3000	747
1955B	Progressive Square constructive algorithms data structures implementation sortings	1000	32.8k
1951F	Inversion Composition constructive algorithms data structures greedy	2500	1k
1945G	Cook and Porridge binary search constructive algorithms data structures implementation	2500	946
1940D	Almost Certainly *special constructive algorithms data structures sortings	unrated	177
1935C	Messenger in MAC binary search brute force constructive algorithms data structures dp greedy sortings	1800	9.9k
1935F	Andrey's Tree binary search constructive algorithms data structures dfs and similar dsu greedy implementation trees	2800	634
1930C	Lexicographically Largest binary search constructive algorithms data structures greedy sortings	1700	8.2k
1923D	Slimes binary search constructive algorithms data structures greedy two pointers	1800	8.5k
1919D	01 Tree constructive algorithms data structures dsu greedy sortings trees	2100	4.6k
1918B	Minimize Inversions constructive algorithms data structures greedy implementation sortings	900	27.5k
1909C	Heavy Intervals constructive algorithms data structures dsu greedy math sortings	1400	13.4k
1909H	Parallel Swaps Sort constructive algorithms data structures	3500	115
1904D2	Set To Max (Hard Version) constructive algorithms data structures divide and conquer greedy implementation sortings	1800	5.8k
1895D	XOR Construction bitmasks constructive algorithms data structures math string suffix structures trees	1900	7.2k
1893D	Colorful Constructive constructive algorithms data structures greedy	2600	1.1k
1887C	Minimum Array binary search brute force constructive algorithms data structures greedy hashing two pointers	2400	2.3k
1876E	Ball-Stackable constructive algorithms data structures dp trees	3300	373
1867C	Salyg1n and the MEX Game constructive algorithms data structures games greedy interactive	1300	12.8k
1864D	Matrix Cascade brute force constructive algorithms data structures dp greedy math	1700	7.7k
1862E	Kolya and Movie Theatre constructive algorithms data structures greedy	1600	13k
1852E	Rivalries constructive algorithms data structures greedy	3400	240
1846C	Rudolf and the Another Competition constructive algorithms data structures dp greedy sortings	1200	21.8k
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
1833F	Ira and Flamenco combinatorics constructive algorithms data structures implementation math sortings two pointers	1700	10.6k
1827F	Copium Permutation constructive algorithms data structures greedy	3500	140
1793C	Dora and Search constructive algorithms data structures two pointers	1200	35.2k
1779D	Boris and His Amazing Haircut constructive algorithms data structures dp dsu greedy sortings	1700	9.2k
1774G	Segment Covering brute force combinatorics constructive algorithms data structures dp trees	3200	692
1770D	Koxia and Game constructive algorithms data structures dfs and similar dsu flows games graph matchings graphs implementation	2000	4.5k
1759G	Restore the Permutation binary search constructive algorithms data structures greedy math	1900	5.6k
1758F	Decent Division constructive algorithms data structures	3000	244
1750H	BinaryStringForces constructive algorithms data structures dp	3500	126
1747D	Yet Another Problem binary search bitmasks constructive algorithms data structures	1900	5.7k
1743G	Antifibonacci Cut bitmasks combinatorics constructive algorithms data structures dp hashing math	3000	381
1740D	Knowledge Cards constructive algorithms data structures	1500	9.2k
1740E	Hanging Hearts constructive algorithms data structures dfs and similar dp greedy trees	1800	5.1k
1738D	Permutation Addicts constructive algorithms data structures dfs and similar dsu graphs trees	1900	3.8k
1735E	House Planning constructive algorithms data structures graph matchings greedy	2400	1.3k
1720E	Misha and Paintings constructive algorithms data structures greedy implementation math	2700	1k
1712D	Empty Graph binary search constructive algorithms data structures greedy shortest paths	2000	5.2k
1706D2	Chopping Carrots (Hard Version) brute force constructive algorithms data structures dp greedy math number theory two pointers	2400	2k
1702F	Equate Multisets constructive algorithms data structures greedy math number theory	1700	9.6k
1700C	Helping the Nature constructive algorithms data structures greedy	1700	12.3k
1697C	awoo's Favorite Problem binary search constructive algorithms data structures greedy implementation strings two pointers	1400	15.9k
1696D	Permutation Graph binary search constructive algorithms data structures divide and conquer greedy shortest paths	1900	6.1k
1691D	Max GEQ Sum binary search constructive algorithms data structures divide and conquer implementation two pointers	1800	7.7k
1684E	MEX vs DIFF binary search brute force constructive algorithms data structures greedy two pointers	2100	3.7k
1672H	Zigu Zagu constructive algorithms data structures greedy	2700	1.2k
1659D	Reverse Sort Sum constructive algorithms data structures greedy implementation math two pointers	1900	4.5k
1648B	Integral Array brute force constructive algorithms data structures math	1800	7.4k
1638D	Big Brush constructive algorithms data structures greedy implementation	2000	4.8k
1634E	Fair Share constructive algorithms data structures dfs and similar graph matchings graphs	2400	2.3k
1630B	Range and Partition binary search constructive algorithms data structures greedy two pointers	1800	6.5k
1620E	Replace the Numbers constructive algorithms data structures dsu implementation	1900	9.8k
1619E	MEX and Increments constructive algorithms data structures dp greedy implementation math sortings	1700	10.3k
1615H	Reindeer Games binary search constructive algorithms data structures divide and conquer flows graphs shortest paths	3000	457
1593G	Changing Brackets constructive algorithms data structures dp greedy	2200	1.9k
1580E	Railway Construction brute force constructive algorithms data structures graphs shortest paths	3400	126
1566G	Four Vertices constructive algorithms data structures graphs greedy implementation shortest paths	3100	433

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