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Problemset

130 problems · filtered by 3 tags

#	Name	Rating↕	Solved↕
2242E	Product of Closures bitmasks brute force constructive algorithms greedy implementation math number theory	2200	1.4k
2230C	Arrange the Numbers in a Circle constructive algorithms implementation math	1300	11.4k
2178D	Xmas or Hysteria constructive algorithms greedy implementation math	1700	7k
2163B	Siga ta Kymata constructive algorithms greedy implementation math	1700	9.5k
2157C	Meximum Array 2 constructive algorithms greedy implementation math	1400	10.9k
2154F1	Bombing (Easy Version) brute force combinatorics constructive algorithms implementation math	2700	594
2134A	Painting With Two Colors constructive algorithms implementation math	800	27.4k
2127G2	Inter Active (Hard Version) binary search bitmasks constructive algorithms graphs implementation interactive math probabilities	3500	126
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
2092B	Lady Bug brute force constructive algorithms implementation math	1000	25.3k
2078B	Vicious Labyrinth constructive algorithms graphs greedy implementation math	1100	18.6k
2077B	Finding OR Sum bitmasks constructive algorithms implementation interactive math	1900	3.7k
2071D2	Infinite Sequence (Hard Version) bitmasks brute force constructive algorithms data structures dp implementation math	2500	1.1k
2044H	Hard Demon Problem constructive algorithms data structures dp implementation math	2100	2.7k
2035E	Monster binary search brute force constructive algorithms greedy implementation math ternary search	2300	2k
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
2022A	Bus to Pénjamo constructive algorithms greedy implementation math	800	17.4k
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
1995C	Squaring brute force constructive algorithms greedy implementation math number theory	1800	10.4k
1992E	Novice's Mistake brute force constructive algorithms implementation math strings	1700	11k
1983B	Corner Twist constructive algorithms greedy implementation math	1200	18.6k
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
1973C	Cat, Fox and Double Maximum constructive algorithms greedy implementation math sortings	1700	10k
1969A	Two Friends constructive algorithms implementation math	800	22.3k
1956D	Nene and the Mex Operator bitmasks brute force constructive algorithms divide and conquer dp greedy implementation math	2000	4.9k
1951E	No Palindromes brute force constructive algorithms divide and conquer greedy hashing implementation math strings	2000	4.6k
1919E	Counting Prefixes combinatorics constructive algorithms dp implementation math	2600	1.2k
1918A	Brick Wall constructive algorithms greedy implementation math	800	32.6k
1916A	2023 constructive algorithms implementation math number theory	800	28.5k
1916C	Training Before the Olympiad constructive algorithms games greedy implementation math	1200	20.1k
1912E	Evaluate It and Back Again constructive algorithms implementation math	2200	1.3k
1896F	Bracket Xoring constructive algorithms greedy implementation math	2600	1k
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
1864A	Increasing and Decreasing constructive algorithms greedy implementation math	800	21.5k
1845A	Forbidden Integer constructive algorithms implementation math number theory	800	51.1k
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
1832D2	Red-Blue Operations (Hard Version) binary search constructive algorithms greedy implementation math	2400	2.4k
1819C	The Fox and the Complete Tree Traversal constructive algorithms dp implementation math trees	2400	1.8k
1811D	Umka and a Long Flight constructive algorithms implementation math	1600	8.8k
1799E	City Union constructive algorithms dfs and similar dsu geometry greedy implementation math	2300	1.4k
1788B	Sum of Two Numbers constructive algorithms greedy implementation math probabilities	1100	22.6k
1787F	Inverse Transformation constructive algorithms implementation math	2500	841
1750A	Indirect Sort constructive algorithms implementation math	800	17.9k
1746C	Permutation Operations constructive algorithms greedy implementation math	1300	14.2k
1737C	Ela and Crickets constructive algorithms games implementation math	1500	6.5k
1732A	Bestie brute force combinatorics constructive algorithms implementation math number theory	1000	17.8k
1720E	Misha and Paintings constructive algorithms data structures greedy implementation math	2700	1k
1718E	Impressionism constructive algorithms graphs implementation math	3500	228
1704D	Magical Array constructive algorithms hashing implementation math	1900	5.4k
1704E	Count Seconds brute force constructive algorithms dp graphs implementation math	2200	2.7k
1700B	Palindromic Numbers constructive algorithms implementation math	1100	20.1k
1698F	Equal Reversal constructive algorithms graphs implementation math	2800	782
1697E	Coloring brute force combinatorics constructive algorithms dp geometry graphs greedy implementation math	2400	1.5k
1696C	Fishingprince Plays With Array constructive algorithms greedy implementation math	1400	12.7k
1682C	LIS or Reverse LIS? constructive algorithms greedy implementation math	1400	16.6k
1659A	Red Versus Blue constructive algorithms greedy implementation math	1000	33.1k
1659D	Reverse Sort Sum constructive algorithms data structures greedy implementation math two pointers	1900	4.5k
1658A	Marin and Photoshoot constructive algorithms implementation math	800	20.9k
1650D	Twist the Permutation brute force constructive algorithms implementation math	1300	15.3k
1628A	Meximum Array binary search constructive algorithms greedy implementation math two pointers	1400	17.2k
1628C	Grid Xor constructive algorithms greedy implementation interactive math	2300	3.6k
1619E	MEX and Increments constructive algorithms data structures dp greedy implementation math sortings	1700	10.3k
1618F	Reverse bitmasks constructive algorithms dfs and similar implementation math strings	2000	4.8k
1617D2	Too Many Impostors (hard version) constructive algorithms implementation interactive math	2400	2.1k
1574E	Coloring combinatorics constructive algorithms implementation math	2500	1.1k
1571D	Sweepstake *special brute force constructive algorithms implementation math	1800	373
1567D	Expression Evaluation Error constructive algorithms greedy implementation math	2000	4.9k
1562B	Scenes From a Memory brute force constructive algorithms implementation math number theory	1000	20.7k
1551D2	Domino (hard version) constructive algorithms implementation math	2100	3k
1550D	Excellent Arrays binary search combinatorics constructive algorithms implementation math sortings two pointers	2300	2.1k
1537C	Challenging Cliffs constructive algorithms greedy implementation math	1200	30.7k
1504B	Flip the Bits constructive algorithms greedy implementation math	1200	27.1k
1487C	Minimum Ties brute force constructive algorithms dfs and similar graphs greedy implementation math	1500	15.6k
1455E	Four Points brute force constructive algorithms flows geometry greedy implementation math ternary search	2400	1.7k
1430C	Numbers on Whiteboard constructive algorithms data structures greedy implementation math	1000	28.7k
1421D	Hexagons brute force constructive algorithms greedy implementation math shortest paths	1900	4.4k
1419B	Stairs brute force constructive algorithms greedy implementation math	1200	17.1k
1419E	Decryption constructive algorithms implementation math number theory	2100	3.5k
1380D	Berserk And Fireball constructive algorithms greedy implementation math two pointers	2000	5.1k
1348D	Phoenix and Science binary search constructive algorithms greedy implementation math	1900	9.4k
1329A	Dreamoon Likes Coloring constructive algorithms greedy implementation math	1800	9.8k
1313B	Different Rules constructive algorithms greedy implementation math	1700	7.1k
1305E	Kuroni and the Score Distribution constructive algorithms greedy implementation math	2200	3.3k
1286F	Harry The Potter brute force constructive algorithms dp fft implementation math	3100	411
1266D	Decreasing Debts constructive algorithms data structures graphs greedy implementation math two pointers	2000	3.9k
1158A	The Party and Sweets binary search constructive algorithms greedy implementation math sortings two pointers	1500	8.5k
1120B	Once in a casino constructive algorithms greedy implementation math	2700	481
1119C	Ramesses and Corner Inversion constructive algorithms greedy implementation math	1500	7.2k
1104A	Splitting into digits constructive algorithms implementation math	800	15.9k
1080D	Olya and magical square constructive algorithms implementation math	2000	1.7k
1054E	Chips Puzzle constructive algorithms implementation math	2400	518
1004B	Sonya and Exhibition constructive algorithms greedy implementation math	1300	10k

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