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Problemset

722 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
2249D	Xor Permutation Matrix bitmasks constructive algorithms math	unrated	672
2245C	MEXOR bitmasks constructive algorithms math	unrated	6k
2244C	Stepan and Permutation constructive algorithms dfs and similar dsu greedy math number theory sortings	unrated	15.6k
2244D	Yaroslav and Productivity constructive algorithms dp greedy math number theory	unrated	11.4k
2242E	Product of Closures bitmasks brute force constructive algorithms greedy implementation math number theory	2200	1.4k
2241B	Good times Good times constructive algorithms dfs and similar math	1100	19.7k
2239A	Nim Game Is XOR Game constructive algorithms games greedy math	1300	8.7k
2237D	Fullmetal Bitchemist constructive algorithms greedy math	1500	6.2k
2237G	Send GCDs communication constructive algorithms interactive math number theory	2900	416
2236D	Brand New Tatar TV Show binary search constructive algorithms dp games math	1300	12.5k
2234B	Palindrome, Twelve and Two Terms brute force constructive algorithms math	800	21.8k
2231F	Quadratic Jumps brute force constructive algorithms greedy math number theory	2600	787
2230C	Arrange the Numbers in a Circle constructive algorithms implementation math	1300	11.4k
2227C	Snowfall constructive algorithms math	800	22.7k
2226D	Reserved Reversals constructive algorithms dp greedy math	1900	3.2k
2225E	Covering Points with Circles constructive algorithms geometry math	2200	1.3k
2224B	Zhily and Mex and Max constructive algorithms greedy math sortings	1200	9k
2219A	Grid L brute force constructive algorithms math number theory	1400	10.7k
2219B1	Unique Values (Easy version) binary search constructive algorithms divide and conquer interactive math	1900	4.2k
2219E	Weird Chessboard constructive algorithms math	3500	154
2218C	The 67th Permutation Problem constructive algorithms greedy math	800	30.8k
2218D	The 67th OEIS Problem constructive algorithms greedy math number theory	1100	21.6k
2217F	Interval Game bitmasks combinatorics constructive algorithms dp games greedy math probabilities	2300	885
2215A	Interval Mod constructive algorithms dp greedy math	1700	3.7k
2211B	Mickey Mouse Constructive constructive algorithms dp greedy math	1100	12.9k
2210D	A Simple RBS Problem constructive algorithms math strings trees	2100	2.3k
2208A	Bingo Candies constructive algorithms math	800	21.9k
2207E2	N-MEX (Counting Version) combinatorics constructive algorithms math	2400	964
2204E	Sum of Digits (and Again) brute force constructive algorithms math	1800	5.2k
2201F2	Monotone Monochrome Matrices (Hard Version) constructive algorithms data structures hashing math	2800	461
2189B	The Curse of the Frog constructive algorithms greedy math	1200	16.2k
2189C1	XOR Convenience (Easy Version) bitmasks constructive algorithms math	1300	14.7k
2189C2	XOR-convenience (Hard Version) bitmasks constructive algorithms math	1800	6.5k
2189E	Majority Wins? constructive algorithms greedy math strings	2600	882
2185A	Perfect Root constructive algorithms math	800	45.6k
2181C	Cacti Classification binary search constructive algorithms interactive math	3200	167
2179D	Blackslex and Penguin Civilization bitmasks constructive algorithms greedy math	1300	14.1k
2179E	Blackslex and Girls constructive algorithms geometry math	1800	6k
2178D	Xmas or Hysteria constructive algorithms greedy implementation math	1700	7k
2175B	XOR Array constructive algorithms math	1300	13k
2174E1	Game of Scientists (Version 1) chinese remainder theorem constructive algorithms interactive math	3100	147
2163B	Siga ta Kymata constructive algorithms greedy implementation math	1700	9.5k
2162G	Beautiful Tree constructive algorithms math probabilities trees	2200	2.9k
2158A	Suspension constructive algorithms greedy math	800	24k
2158B	Split constructive algorithms greedy math	1200	14.7k
2158F1	Distinct GCDs (Easy Version) constructive algorithms graphs math number theory	2600	450
2158F2	Distinct GCDs (Hard Version) combinatorics constructive algorithms graphs math number theory	3000	287
2157C	Meximum Array 2 constructive algorithms greedy implementation math	1400	10.9k
2157F	Git Gud brute force constructive algorithms divide and conquer math ternary search	2400	1.5k
2157G	Isaac's Queries bitmasks brute force constructive algorithms dfs and similar divide and conquer dp greedy interactive math probabilities	2800	672
2157H	Keygen 3 brute force combinatorics constructive algorithms dfs and similar math	3200	238
2155D	Batteries brute force constructive algorithms graph matchings graphs interactive math	1800	6.2k
2154F1	Bombing (Easy Version) brute force combinatorics constructive algorithms implementation math	2700	594
2152E	Monotone Subsequence constructive algorithms graphs greedy interactive math	2100	3.9k
2147I1	Longest Increasing Path (Easy Version) constructive algorithms math	3300	143
2147I2	Longest Increasing Path (Hard Version) constructive algorithms math	3500	113
2144A	Cut the Array brute force constructive algorithms math number theory	800	22.3k
2143E	Make Good constructive algorithms greedy math strings	2400	2.1k
2140B	Another Divisibility Problem constructive algorithms math number theory	900	23.2k
2138E1	Determinant Construction (Easy Version) brute force constructive algorithms math matrices number theory	3100	270
2138E2	Determinant Construction (Hard Version) brute force constructive algorithms math matrices number theory	3100	197
2137A	Collatz Conjecture constructive algorithms math	800	36.3k
2137B	Fun Permutation constructive algorithms math number theory	900	27.4k
2135B	For the Champion constructive algorithms interactive math	1700	8.6k
2135D1	From the Unknown (Easy Version) constructive algorithms interactive math	2100	3.4k
2135D2	From the Unknown (Hard Version) brute force constructive algorithms interactive math	2500	1.2k
2134A	Painting With Two Colors constructive algorithms implementation math	800	27.4k
2134B	Add 0 or K constructive algorithms math number theory	1200	21.9k
2131B	Alternating Series constructive algorithms greedy math	800	31.5k
2131H	Sea, You & copriMe brute force constructive algorithms graphs greedy math number theory	2600	909
2128E2	Submedians (Hard Version) binary search constructive algorithms data structures math two pointers	2600	818
2127A	Mix Mex Max constructive algorithms greedy math	800	21.1k
2127G2	Inter Active (Hard Version) binary search bitmasks constructive algorithms graphs implementation interactive math probabilities	3500	126
2124C	Subset Multiplication constructive algorithms greedy math number theory	1300	16.3k
2124E	Make it Zero constructive algorithms greedy math	2100	4.9k
2124I	Lexicographic Partition constructive algorithms math trees	3500	360
2122C	Manhattan Pairs constructive algorithms geometry greedy math sortings	1700	9.7k
2120C	Divine Tree constructive algorithms greedy math sortings trees	1400	13k
2119C	A Good Problem bitmasks constructive algorithms math	1300	16.8k
2118E	Grid Coloring constructive algorithms geometry greedy math	2400	1.4k
2115A	Gellyfish and Flaming Peony constructive algorithms dp math number theory	1500	16.5k
2114G	Build an Array brute force constructive algorithms dp greedy math number theory	2200	2.1k
2113B	Good Start constructive algorithms math	1200	15k
2113F	Two Arrays constructive algorithms dfs and similar graphs math	2500	992
2111F	Puzzle brute force constructive algorithms greedy math	2400	1.5k
2109C1	Hacking Numbers (Easy Version) bitmasks constructive algorithms interactive math number theory	1500	11.8k
2109C2	Hacking Numbers (Medium Version) constructive algorithms interactive math number theory	1700	8.9k
2109C3	Hacking Numbers (Hard Version) constructive algorithms interactive math number theory	2600	3.3k
2108B	SUMdamental Decomposition bitmasks constructive algorithms greedy implementation math	1300	14.9k
2107C	Maximum Subarray Sum binary search constructive algorithms dp implementation math	1500	12.5k
2107E	Ain and Apple Tree binary search constructive algorithms greedy math trees	2600	957
2106B	St. Chroma constructive algorithms greedy math	900	28.9k
2104C	Card Game brute force constructive algorithms games greedy math	1100	17.8k
2102A	Dinner Time constructive algorithms math	900	21.9k
2096D	Wonderful Lightbulbs combinatorics constructive algorithms math	2000	5.7k
2092B	Lady Bug brute force constructive algorithms implementation math	1000	25.3k
2092C	Asuna and the Mosquitoes constructive algorithms greedy math	1200	23.1k
2092E	She knows... combinatorics constructive algorithms graphs math	2100	3.9k
2092F	Andryusha and CCB brute force constructive algorithms greedy math number theory strings	2900	438
2091G	Gleb and Boating brute force constructive algorithms data structures dp graphs greedy math number theory shortest paths	2300	1.6k

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