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722 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
2086E	Zebra-like Numbers bitmasks brute force constructive algorithms dfs and similar dp greedy math	2400	1.7k
2085E	Serval and Modulo constructive algorithms math number theory	2200	3.2k
2084A	Max and Mod constructive algorithms math	800	17.6k
2084D	Arcology On Permafrost binary search brute force constructive algorithms greedy math	1600	9.1k
2081D	MST in Modulo Graph constructive algorithms dsu graphs greedy math number theory sortings trees	2600	1.2k
2081F	Hot Matrix constructive algorithms math	3300	144
2078B	Vicious Labyrinth constructive algorithms graphs greedy implementation math	1100	18.6k
2077A	Breach of Faith constructive algorithms greedy math sortings	1500	14.9k
2077B	Finding OR Sum bitmasks constructive algorithms implementation interactive math	1900	3.7k
2077E	Another Folding Strip combinatorics constructive algorithms data structures divide and conquer dp greedy math	2700	627
2072E	Do You Love Your Hero and His Two-Hit Multi-Target Attacks? binary search brute force constructive algorithms dp geometry greedy math	1500	12.6k
2072F	Goodbye, Banker Life 2-sat bitmasks combinatorics constructive algorithms fft math number theory	1700	8.7k
2071B	Perfecto brute force constructive algorithms greedy math	1100	21.3k
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
2068H	Statues constructive algorithms greedy math	2700	419
2067A	Adjacent Digit Sums brute force constructive algorithms math	800	25.9k
2066F	Curse constructive algorithms dp math	3300	75
2062A	String constructive algorithms greedy math strings	800	28.5k
2062F	Traveling Salescat constructive algorithms dp geometry graphs greedy math sortings	2900	633
2059B	Cost of the Array brute force constructive algorithms greedy math	1300	19.1k
2059C	Customer Service brute force constructive algorithms graph matchings greedy math sortings	1600	12.8k
2057A	MEX Table constructive algorithms math	800	27.7k
2057C	Trip to the Olympiad bitmasks constructive algorithms greedy math	1500	14.1k
2057G	Secret Message constructive algorithms dfs and similar math	3000	764
2056A	Shape Perimeter constructive algorithms math	800	27k
2056C	Palindromic Subsequences brute force constructive algorithms math	1200	19.8k
2055A	Two Frogs constructive algorithms games greedy math	800	34k
2055C	The Trail brute force constructive algorithms greedy math two pointers	1400	17.6k
2052C	Cactus without Bridges constructive algorithms math	3500	64
2044D	Harder Problem constructive algorithms greedy math	1100	24.6k
2044H	Hard Demon Problem constructive algorithms data structures dp implementation math	2100	2.7k
2041E	Beautiful Array constructive algorithms math	1200	10.2k
2040B	Paint a Strip constructive algorithms greedy math	1000	24.5k
2040C	Ordered Permutations bitmasks combinatorics constructive algorithms greedy math two pointers	1600	11k
2039D	Shohag Loves GCD constructive algorithms greedy math number theory	1700	7.2k
2037C	Superultra's Favorite Permutation constructive algorithms greedy math number theory	1000	26k
2036G	Library of Magic binary search constructive algorithms divide and conquer interactive math number theory	2200	1.7k
2035B	Everyone Loves Tres constructive algorithms greedy math number theory	900	20.9k
2035C	Alya and Permutation bitmasks constructive algorithms math	1400	11.8k
2035E	Monster binary search brute force constructive algorithms greedy implementation math ternary search	2300	2k
2034E	Permutations Harmony combinatorics constructive algorithms greedy hashing math	2200	2.1k
2033A	Sakurako and Kosuke constructive algorithms implementation math	800	41.7k
2032B	Medians constructive algorithms greedy implementation math	1100	21.1k
2032E	Balanced constructive algorithms data structures greedy implementation math	2400	1.4k
2031A	Penchick and Modern Monument constructive algorithms dp greedy math	800	21.2k
2031C	Penchick and BBQ Buns constructive algorithms math number theory	1300	16k
2030A	A Gift From Orangutan constructive algorithms greedy math sortings	800	27.8k
2030B	Minimise Oneness combinatorics constructive algorithms games math	800	24k
2029E	Common Generator brute force constructive algorithms math number theory	2100	3.6k
2026A	Perpendicular Segments constructive algorithms geometry greedy math	900	20.5k
2023A	Concatenation of Arrays constructive algorithms greedy math sortings	1300	16.9k
2022A	Bus to Pénjamo constructive algorithms greedy implementation math	800	17.4k
2013A	Zhan's Blender constructive algorithms math	800	31.5k
2013B	Battle for Survive constructive algorithms greedy math	900	28.7k
2008A	Sakurako's Exam brute force constructive algorithms greedy math	800	42.3k
2005A	Simple Palindrome combinatorics constructive algorithms greedy math	900	26.7k
2002A	Distanced Coloring constructive algorithms implementation math	800	21.4k
1998A	Find K Distinct Points with Fixed Center constructive algorithms implementation math	800	26.3k
1998B	Minimize Equal Sum Subarrays constructive algorithms math number theory	1000	28.5k
1995C	Squaring brute force constructive algorithms greedy implementation math number theory	1800	10.4k
1994B	Fun Game bitmasks constructive algorithms greedy math	1100	19.8k
1994D	Funny Game constructive algorithms dsu graphs greedy math number theory trees	1900	7.7k
1994H	Fortnite combinatorics constructive algorithms games greedy hashing interactive math number theory strings	3500	779
1993F1	Dyn-scripted Robot (Easy Version) brute force chinese remainder theorem constructive algorithms math number theory	2400	1.2k
1992A	Only Pluses brute force constructive algorithms greedy math sortings	800	50.1k
1992C	Gorilla and Permutation constructive algorithms math	900	33.8k
1992E	Novice's Mistake brute force constructive algorithms implementation math strings	1700	11k
1991C	Absolute Zero constructive algorithms greedy math	1300	18k
1991D	Prime XOR Coloring bitmasks constructive algorithms graphs greedy math number theory	1900	8k
1983A	Array Divisibility constructive algorithms math	800	28.3k
1983B	Corner Twist constructive algorithms greedy implementation math	1200	18.6k
1983D	Swap Dilemma constructive algorithms data structures divide and conquer greedy math sortings	1700	11.5k
1981C	Turtle and an Incomplete Sequence bitmasks brute force constructive algorithms greedy implementation math	1800	6.4k
1980E	Permutation of Rows and Columns constructive algorithms data structures greedy hashing implementation math matrices sortings	1600	13.3k
1978C	Manhattan Permutations constructive algorithms data structures greedy implementation math	1300	18k
1977B	Binary Colouring bitmasks constructive algorithms greedy math	1100	20.1k
1973C	Cat, Fox and Double Maximum constructive algorithms greedy implementation math sortings	1700	10k
1969A	Two Friends constructive algorithms implementation math	800	22.3k
1956C	Nene's Magical Matrix constructive algorithms greedy math	1600	15.4k
1956D	Nene and the Mex Operator bitmasks brute force constructive algorithms divide and conquer dp greedy implementation math	2000	4.9k
1954A	Painting the Ribbon constructive algorithms greedy math	900	28k
1951A	Dual Trigger constructive algorithms greedy math	900	22.8k
1951D	Buying Jewels constructive algorithms greedy math	2000	6.4k
1951E	No Palindromes brute force constructive algorithms divide and conquer greedy hashing implementation math strings	2000	4.6k
1949K	Make Triangle constructive algorithms math	2800	482
1942A	Farmer John's Challenge constructive algorithms math	800	18.6k
1942B	Bessie and MEX constructive algorithms math	1100	15.7k
1936A	Bitwise Operation Wizard bitmasks constructive algorithms greedy interactive math	1700	8.8k
1934C	Find a Mine binary search constructive algorithms geometry greedy interactive math	1700	8.2k
1933D	Turtle Tenacity: Continual Mods constructive algorithms greedy math number theory sortings	1200	23.9k
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks brute force combinatorics constructive algorithms dfs and similar math	2300	1.2k
1930B	Permutation Printing brute force constructive algorithms math	1000	17.9k
1929A	Sasha and the Beautiful Array constructive algorithms greedy math sortings	800	35.3k
1929B	Sasha and the Drawing constructive algorithms greedy math	800	26.9k
1929C	Sasha and the Casino binary search brute force constructive algorithms games greedy math	1400	17.5k
1928E	Modular Sequence brute force constructive algorithms dp graphs greedy math number theory	2300	2.3k
1927E	Klever Permutation constructive algorithms math two pointers	1400	17.3k
1922B	Forming Triangles combinatorics constructive algorithms math sortings	1200	23.7k
1922E	Increasing Subsequences bitmasks constructive algorithms divide and conquer greedy math	1800	9.3k

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