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Problemset

478 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
1946D	Birthday Gift bitmasks brute force constructive algorithms greedy implementation	1900	5.7k
1945G	Cook and Porridge binary search constructive algorithms data structures implementation	2500	946
1940B	Three Arrays *special constructive algorithms implementation sortings	unrated	275
1935F	Andrey's Tree binary search constructive algorithms data structures dfs and similar dsu greedy implementation trees	2800	634
1922A	Tricky Template constructive algorithms implementation strings	800	29k
1919E	Counting Prefixes combinatorics constructive algorithms dp implementation math	2600	1.2k
1918A	Brick Wall constructive algorithms greedy implementation math	800	32.6k
1918B	Minimize Inversions constructive algorithms data structures greedy implementation sortings	900	27.5k
1918E	ace5 and Task Order constructive algorithms divide and conquer implementation interactive probabilities sortings	2200	2.1k
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
1907G	Lights brute force constructive algorithms dfs and similar graphs greedy implementation	2200	2.4k
1904D2	Set To Max (Hard Version) constructive algorithms data structures divide and conquer greedy implementation sortings	1800	5.8k
1900A	Cover in Water constructive algorithms greedy implementation strings	800	70k
1896F	Bracket Xoring constructive algorithms greedy implementation math	2600	1k
1896G	Pepe Racing constructive algorithms implementation interactive sortings	3200	451
1890B	Qingshan Loves Strings constructive algorithms implementation	800	18.8k
1889A	Qingshan Loves Strings 2 constructive algorithms greedy implementation	1300	15.5k
1879E	Interactive Game with Coloring brute force constructive algorithms dfs and similar graphs implementation interactive trees	2400	1.6k
1868A	Fill in the Matrix constructive algorithms implementation	1300	13.7k
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
1868D	Flower-like Pseudotree constructive algorithms graphs greedy implementation trees	3000	418
1867D	Cyclic Operations brute force constructive algorithms dfs and similar graphs greedy implementation	1800	6.9k
1864A	Increasing and Decreasing constructive algorithms greedy implementation math	800	21.5k
1864G	Magic Square combinatorics constructive algorithms implementation	3100	358
1846F	Rudolph and Mimic constructive algorithms implementation interactive	1800	3.8k
1845A	Forbidden Integer constructive algorithms implementation math number theory	800	51.2k
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
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
1819C	The Fox and the Complete Tree Traversal constructive algorithms dp implementation math trees	2400	1.8k
1817D	Toy Machine constructive algorithms games implementation	2700	1k
1815B	Sum Graph brute force constructive algorithms graphs implementation interactive shortest paths trees	2000	3.7k
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
1797A	Li Hua and Maze constructive algorithms flows graphs greedy implementation	800	19.7k
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
1788F	XOR, Tree, and Queries bitmasks constructive algorithms dfs and similar dsu graphs greedy implementation trees	2500	1.2k
1787F	Inverse Transformation constructive algorithms implementation math	2500	842
1781C	Equal Frequencies brute force constructive algorithms greedy implementation sortings strings	1600	11k
1775A1	Gardener and the Capybaras (easy version) brute force constructive algorithms implementation	800	20.5k
1774D	Same Count One brute force constructive algorithms greedy implementation two pointers	1600	9.4k
1772F	Copy of a Copy of a Copy constructive algorithms dfs and similar graphs implementation sortings	2000	2.9k
1770D	Koxia and Game constructive algorithms data structures dfs and similar dsu flows games graph matchings graphs implementation	2000	4.5k
1768C	Elemental Decompress constructive algorithms greedy implementation sortings	1300	15.9k
1762B	Make Array Good constructive algorithms implementation number theory sortings	1100	18.7k
1761B	Elimination of a Ring constructive algorithms greedy implementation	1000	14.8k
1750A	Indirect Sort constructive algorithms implementation math	800	17.9k
1750C	Complementary XOR constructive algorithms implementation	1400	10.5k
1746C	Permutation Operations constructive algorithms greedy implementation math	1300	14.2k
1737C	Ela and Crickets constructive algorithms games implementation math	1500	6.5k
1736D	Equal Binary Subsequences constructive algorithms geometry greedy implementation strings	2200	2.8k
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
1717B	Madoka and Underground Competitions constructive algorithms implementation	1100	15.7k
1717F	Madoka and The First Session constructive algorithms flows graph matchings graphs implementation	2500	788
1714F	Build a Tree and That Is It constructive algorithms implementation trees	1900	3.7k
1709C	Recover an RBS constructive algorithms greedy implementation strings	1800	10.5k
1707A	Doremy's IQ binary search constructive algorithms greedy implementation	1600	15.7k
1705B	Mark the Dust Sweeper constructive algorithms greedy implementation	900	25.8k
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
1698B	Rising Sand constructive algorithms greedy implementation	800	21.5k
1698F	Equal Reversal constructive algorithms graphs implementation math	2800	782
1697C	awoo's Favorite Problem binary search constructive algorithms data structures greedy implementation strings two pointers	1400	15.9k
1697E	Coloring brute force combinatorics constructive algorithms dp geometry graphs greedy implementation math	2400	1.5k
1697F	Too Many Constraints 2-sat constructive algorithms graphs implementation	2800	789
1696C	Fishingprince Plays With Array constructive algorithms greedy implementation math	1400	12.7k
1691B	Shoe Shuffling constructive algorithms greedy implementation two pointers	1000	37.6k
1691D	Max GEQ Sum binary search constructive algorithms data structures divide and conquer implementation two pointers	1800	7.7k
1684C	Column Swapping brute force constructive algorithms greedy implementation sortings	1400	13.3k
1682C	LIS or Reverse LIS? constructive algorithms greedy implementation math	1400	16.6k
1682D	Circular Spanning Tree constructive algorithms implementation trees	2000	3.8k
1674D	A-B-C Sort constructive algorithms implementation sortings	1200	17.9k
1672B	I love AAAB constructive algorithms implementation	800	16.5k
1672C	Unequal Array constructive algorithms greedy implementation	1100	14.1k
1672D	Cyclic Rotation constructive algorithms greedy implementation two pointers	1700	7k
1660E	Matrix and Shifts brute force constructive algorithms greedy implementation	1600	8.2k
1659A	Red Versus Blue constructive algorithms greedy implementation math	1000	33.2k
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
1647B	Madoka and the Elegant Gift brute force constructive algorithms graphs implementation	1200	17.2k
1646D	Weight the Tree constructive algorithms dfs and similar dp implementation trees	2000	4.5k
1646F	Playing Around the Table constructive algorithms greedy implementation	2900	707
1644B	Anti-Fibonacci Permutation brute force constructive algorithms implementation	800	21.4k
1641B	Repetitions Decoding constructive algorithms implementation sortings	2000	4.1k
1638D	Big Brush constructive algorithms data structures greedy implementation	2000	4.8k
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
1627A	Not Shading constructive algorithms implementation	800	25k
1624E	Masha-forgetful brute force constructive algorithms dp hashing implementation strings	2000	4.7k
1620A	Equal or Not Equal constructive algorithms dsu implementation	800	23.3k
1620E	Replace the Numbers constructive algorithms data structures dsu implementation	1900	9.9k

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