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Problemset

2,107 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
1671D	Insert a Progression brute force constructive algorithms greedy	1600	8.5k
1670E	Hemose on the Tree bitmasks constructive algorithms dfs and similar trees	2200	2k
1667C	Half Queen Cover constructive algorithms math	2400	2.1k
1667D	Edge Elimination constructive algorithms dfs and similar dp trees	2900	847
1666C	Connect the Points brute force constructive algorithms geometry	1800	3.8k
1666E	Even Split binary search constructive algorithms greedy math	2500	891
1666I	Interactive Treasure Hunt brute force constructive algorithms geometry interactive math	2200	1.8k
1666J	Job Lookup constructive algorithms dp shortest paths trees	2100	1.6k
1665A	GCD vs LCM constructive algorithms math	800	26.6k
1665B	Array Cloning Technique constructive algorithms greedy sortings	900	35.2k
1665D	GCD Guess bitmasks chinese remainder theorem constructive algorithms games interactive math number theory	2000	4.8k
1663G	Six Characters *special constructive algorithms strings	unrated	231
1663H	Cross-Language Program *special constructive algorithms	unrated	1.4k
1662M	Bottle Arrangements constructive algorithms	unrated	3.9k
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
1659B	Bit Flipping bitmasks constructive algorithms greedy strings	1300	12.1k
1659D	Reverse Sort Sum constructive algorithms data structures greedy implementation math two pointers	1900	4.5k
1659E	AND-MEX Walk bitmasks brute force constructive algorithms dfs and similar dsu graphs	2200	2k
1658A	Marin and Photoshoot constructive algorithms implementation math	800	20.9k
1658C	Shinju and the Lost Permutation constructive algorithms math	1700	10k
1658F	Juju and Binary String brute force constructive algorithms greedy math	2700	1k
1656C	Make Equal With Mod constructive algorithms math number theory sortings	1200	21.2k
1656D	K-good constructive algorithms math number theory	1900	7.6k
1656E	Equal Tree Sums constructive algorithms dfs and similar math trees	2200	3.9k
1656F	Parametric MST binary search constructive algorithms graphs greedy math sortings	2600	1.3k
1656G	Cycle Palindrome constructive algorithms graphs math	3200	505
1656I	Neighbour Ordering constructive algorithms graphs	3500	169
1654H	Three Minimums combinatorics constructive algorithms divide and conquer dp fft math	3500	109
1651B	Prove Him Wrong constructive algorithms greedy	800	20.5k
1651E	Sum of Matchings brute force combinatorics constructive algorithms dfs and similar graph matchings greedy math	2600	670
1650D	Twist the Permutation brute force constructive algorithms implementation math	1300	15.3k
1648B	Integral Array brute force constructive algorithms data structures math	1800	7.4k
1647B	Madoka and the Elegant Gift brute force constructive algorithms graphs implementation	1200	17.2k
1647C	Madoka and Childish Pranks constructive algorithms greedy	1300	13.4k
1647D	Madoka and the Best School in Russia constructive algorithms dp math number theory	1900	5.7k
1646B	Quality vs Quantity brute force constructive algorithms greedy sortings two pointers	800	22.9k
1646C	Factorials and Powers of Two bitmasks brute force constructive algorithms dp math	1500	20.5k
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
1638A	Reverse constructive algorithms greedy math	800	22.2k
1638D	Big Brush constructive algorithms data structures greedy implementation	2000	4.8k
1637F	Towers constructive algorithms dfs and similar dp greedy trees	2500	2.2k
1637G	Birthday constructive algorithms greedy math	3000	653
1635C	Differential Sorting constructive algorithms greedy	1200	26.6k
1635E	Cars 2-sat constructive algorithms dfs and similar dsu graphs greedy sortings	2200	2.9k
1634C	OKEA constructive algorithms	1000	19.1k
1634D	Finding Zero constructive algorithms interactive math	2000	4.8k
1634E	Fair Share constructive algorithms data structures dfs and similar graph matchings graphs	2400	2.3k
1632B	Roof Construction bitmasks constructive algorithms	1000	33.3k
1630A	And Matching bitmasks constructive algorithms	1500	16.3k
1630B	Range and Partition binary search constructive algorithms data structures greedy two pointers	1800	6.5k
1630D	Flipping Range constructive algorithms dp greedy number theory	2400	2.1k
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
1627C	Not Assigning constructive algorithms dfs and similar number theory trees	1400	16.4k
1626A	Equidistant Letters constructive algorithms sortings	800	31.1k
1624C	Division by Two and Permutation constructive algorithms flows graph matchings greedy math	1100	27.1k
1624E	Masha-forgetful brute force constructive algorithms dp hashing implementation strings	2000	4.7k
1624F	Interacdive Problem binary search constructive algorithms interactive	2000	3.9k
1622F	Quadratic Set constructive algorithms hashing math number theory	2900	955
1621A	Stable Arrangement of Rooks constructive algorithms	800	24.8k
1621D	The Winter Hike constructive algorithms greedy math	2100	4.4k
1620A	Equal or Not Equal constructive algorithms dsu implementation	800	23.3k
1620D	Exact Change brute force constructive algorithms greedy	2000	4.9k
1620E	Replace the Numbers constructive algorithms data structures dsu implementation	1900	9.9k
1619E	MEX and Increments constructive algorithms data structures dp greedy implementation math sortings	1700	10.3k
1619F	Let's Play the Hat? brute force constructive algorithms greedy math	2000	2.4k
1618E	Singers' Tour constructive algorithms math	1700	7.8k
1618F	Reverse bitmasks constructive algorithms dfs and similar implementation math strings	2000	4.8k
1617A	Forbidden Subsequence constructive algorithms greedy sortings strings	800	17k
1617B	GCD Problem brute force constructive algorithms math number theory	900	27.2k
1617D1	Too Many Impostors (easy version) constructive algorithms implementation interactive	1800	5.2k
1617D2	Too Many Impostors (hard version) constructive algorithms implementation interactive math	2400	2.1k
1615G	Maximum Adjacent Pairs constructive algorithms graph matchings	3300	177
1615H	Reindeer Games binary search constructive algorithms data structures divide and conquer flows graphs shortest paths	3000	457
1614A	Divan and a Store brute force constructive algorithms greedy	800	24.7k
1614B	Divan and a New Project constructive algorithms sortings	1000	30.9k
1614C	Divan and bitwise operations bitmasks combinatorics constructive algorithms dp math	1500	11.4k
1612A	Distance brute force constructive algorithms	800	18.3k
1612B	Special Permutation constructive algorithms greedy	900	18.6k
1612G	Max Sum Array combinatorics constructive algorithms greedy sortings	2500	1k
1611A	Make Even constructive algorithms math	800	33.6k
1611B	Team Composition: Programmers and Mathematicians binary search constructive algorithms math	800	32.2k
1611C	Polycarp Recovers the Permutation constructive algorithms	1000	19.5k
1611D	Weights Assignment For Tree Edges constructive algorithms trees	1500	11.7k
1610F	Mashtali: a Space Oddysey constructive algorithms dfs and similar graphs	3000	716
1608A	Find Array constructive algorithms math	800	20.4k
1608B	Build the Permutation constructive algorithms greedy	1200	12.6k
1606D	Red-Blue Matrix brute force constructive algorithms implementation sortings	2400	1.6k
1605D	Treelabeling bitmasks constructive algorithms dfs and similar games greedy implementation trees	2100	3.3k
1603A	Di-visible Confusion constructive algorithms math number theory	1300	17.9k
1603B	Moderate Modular Mode constructive algorithms math number theory	1600	15.2k
1602B	Divine Array constructive algorithms implementation	1100	14.8k
1599A	Weights constructive algorithms greedy two pointers	2600	916
1594D	The Number of Imposters constructive algorithms dfs and similar dp dsu graphs	1700	9.8k
1594F	Ideal Farm constructive algorithms math	2400	1.6k

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