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Problemset

118 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
2245F	Familiar? brute force combinatorics dp	unrated	244
2234E	Vlad, Misha and Two Arrays brute force combinatorics dfs and similar divide and conquer math	2100	1.9k
2222H	Counting Sort? brute force combinatorics dp	3500	147
2204F	Sum of Fractions binary search brute force combinatorics data structures greedy math number theory two pointers	2200	1.3k
2183F	Jumping Man brute force combinatorics dfs and similar dp trees	2500	1.2k
2182C	Production of Snowmen brute force combinatorics dp	1200	16.3k
2182F1	Christmas Reindeer (easy version) bitmasks brute force combinatorics dp math	2300	1.3k
2182F2	Christmas Reindeer (hard version) bitmasks brute force combinatorics data structures greedy math	2500	1.1k
2163C	Monopati brute force combinatorics dp math two pointers	1500	9.6k
2157H	Keygen 3 brute force combinatorics constructive algorithms dfs and similar math	3200	238
2154F1	Bombing (Easy Version) brute force combinatorics constructive algorithms implementation math	2700	594
2146F	Bubble Sort brute force combinatorics dp	2900	332
2138D	Antiamuny and Slider Movement brute force combinatorics implementation math sortings	2600	682
2129D	Permutation Blackhole brute force combinatorics dp implementation math	2600	2.5k
2128D	Sum of LDS brute force combinatorics dp greedy math	1600	12.9k
2127F	Hamed and AghaBalaSar brute force combinatorics dp math probabilities	2800	2.1k
2125E	Sets of Complementary Sums brute force combinatorics dp math two pointers	2500	1.4k
2086D	Even String brute force combinatorics dp math strings	1700	8.6k
2072G	I've Been Flipping Numbers for 300 Years and Calculated the Sum binary search brute force combinatorics divide and conquer math number theory	2200	2.2k
2056D	Unique Median binary search brute force combinatorics data structures divide and conquer dp	2200	3.7k
2056F1	Xor of Median (Easy Version) bitmasks brute force combinatorics dp math	2700	455
2056F2	Xor of Median (Hard Version) bitmasks brute force combinatorics dp math	3000	362
2048G	Kevin and Matrices brute force combinatorics dp math	2800	761
2047B	Replace Character brute force combinatorics greedy strings	900	19.6k
2043F	Nim bitmasks brute force combinatorics dp games greedy implementation shortest paths	2700	918
2029H	Message Spread bitmasks brute force combinatorics dp	3500	111
2006F	Dora's Paint brute force combinatorics constructive algorithms graphs implementation	3500	173
1997F	Chips on a Line brute force combinatorics dp greedy math	2700	1.3k
1996D	Fun binary search brute force combinatorics math number theory	1500	20k
1986G1	Permutation Problem (Simple Version) binary search brute force combinatorics data structures math number theory	2200	2k
1985E	Secret Box brute force combinatorics math	1200	23.9k
1982E	Number of k-good subarrays bitmasks brute force combinatorics divide and conquer dp math meet-in-the-middle	2300	1.9k
1975F	Set bitmasks brute force combinatorics dfs and similar divide and conquer dp math	2600	1.1k
1967C	Fenwick Tree bitmasks brute force combinatorics data structures dp math trees	2300	2.3k
1957E	Carousel of Combinations brute force combinatorics dp math number theory	2400	1.7k
1943D1	Counting Is Fun (Easy Version) brute force combinatorics dp math	2400	2k
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks brute force combinatorics constructive algorithms dfs and similar math	2300	1.2k
1929F	Sasha and the Wedding Binary Search Tree brute force combinatorics data structures dfs and similar math trees	2300	2.4k
1917B	Erase First or Second Letter brute force combinatorics data structures dp strings	1100	38.7k
1916H1	Matrix Rank (Easy Version) brute force combinatorics dp math matrices	2700	751
1914G1	Light Bulbs (Easy Version) brute force combinatorics dfs and similar dp dsu graphs math trees	2100	2.5k
1909F1	Small Permutation Problem (Easy Version) brute force combinatorics dp math	2200	2.3k
1907E	Good Triples brute force combinatorics number theory	1600	16.7k
1866M	Mighty Rock Tower brute force combinatorics dp math probabilities	2400	1k
1855B	Longest Divisors Interval brute force combinatorics greedy math number theory	900	48.1k
1847E	Triangle Platinum? brute force combinatorics implementation interactive math probabilities	2900	398
1832E	Combinatorics Problem brute force combinatorics dp	2200	2.6k
1808E3	Minibuses on Venus (hard version) brute force combinatorics dp math	2800	622
1792F2	Graph Coloring (hard version) brute force combinatorics divide and conquer dp fft graphs	2900	558
1788D	Moving Dots binary search brute force combinatorics math two pointers	2000	4.8k
1784E	Infinite Game brute force combinatorics dp games probabilities	3100	485
1780F	Three Chairs bitmasks brute force combinatorics data structures dp number theory sortings	2300	2k
1774G	Segment Covering brute force combinatorics constructive algorithms data structures dp trees	3200	692
1743A	Password brute force combinatorics implementation math	800	29.9k
1735D	Meta-set brute force combinatorics data structures hashing math	1700	7.1k
1732A	Bestie brute force combinatorics constructive algorithms implementation math number theory	1000	17.8k
1731F	Function Sum brute force combinatorics dp fft math	2500	924
1728G	Illumination binary search bitmasks brute force combinatorics dp math two pointers	2700	669
1712E1	LCM Sum (easy version) binary search brute force combinatorics math number theory two pointers	2300	2.5k
1705E	Mark and Professor Koro binary search bitmasks brute force combinatorics data structures greedy	2300	2.5k
1698E	PermutationForces II brute force combinatorics greedy sortings trees two pointers	2300	1.9k
1697E	Coloring brute force combinatorics constructive algorithms dp geometry graphs greedy implementation math	2400	1.5k
1696H	Maximum Product? brute force combinatorics dp greedy implementation math two pointers	3500	215
1671F	Permutation Counting brute force combinatorics dp fft math	2700	514
1651E	Sum of Matchings brute force combinatorics constructive algorithms dfs and similar graph matchings greedy math	2600	669
1644E	Expand the Path brute force combinatorics data structures implementation math	1900	3.5k
1641D	Two Arrays bitmasks brute force combinatorics greedy hashing math two pointers	2700	1.6k
1598E	Staircases brute force combinatorics data structures dfs and similar dp implementation math	2100	2.5k
1580B	Mathematics Curriculum brute force combinatorics dp trees	2600	1.4k
1553E	Permutation Shift brute force combinatorics constructive algorithms dfs and similar dsu graphs math	2100	3.8k
1551F	Equidistant Vertices brute force combinatorics dfs and similar dp trees	2200	2.2k
1545C	AquaMoon and Permutations 2-sat brute force combinatorics constructive algorithms graph matchings graphs	2800	797
1540B	Tree Array brute force combinatorics dp graphs math probabilities trees	2300	3.1k
1400D	Zigzags brute force combinatorics data structures math two pointers	1900	11.5k
1400G	Mercenaries bitmasks brute force combinatorics dp dsu math two pointers	2600	1.2k
1371E1	Asterism (Easy Version) binary search brute force combinatorics math number theory sortings	1900	5.5k
1366E	Two Arrays binary search brute force combinatorics constructive algorithms dp two pointers	2100	4.7k
1336E1	Chiori and Doll Picking (easy version) bitmasks brute force combinatorics math	2700	902
1336E2	Chiori and Doll Picking (hard version) bitmasks brute force combinatorics math	3500	706
1328B	K-th Beautiful String binary search brute force combinatorics implementation math	1300	32.4k
1305C	Kuroni and Impossible Calculation brute force combinatorics math number theory	1600	19.7k
1276C	Beautiful Rectangle brute force combinatorics constructive algorithms data structures greedy math	2300	1.8k
1245F	Daniel and Spring Cleaning bitmasks brute force combinatorics dp	2300	2.3k
1221G	Graph And Numbers bitmasks brute force combinatorics dp meet-in-the-middle	2900	988
1181C	Flag brute force combinatorics dp implementation	1900	3.4k
1109D	Sasha and Interesting Fact from Graph Theory brute force combinatorics dp math trees	2400	1.5k
1043D	Mysterious Crime brute force combinatorics math meet-in-the-middle two pointers	1700	4.8k
1007B	Pave the Parallelepiped bitmasks brute force combinatorics math number theory	2400	1.1k
997B	Roman Digits brute force combinatorics dp greedy math	2000	3.2k
991E	Bus Number brute force combinatorics math	1800	3.7k
933D	A Creative Cutout brute force combinatorics math	2900	403
920G	List Of Integers binary search bitmasks brute force combinatorics math number theory	2200	2.1k
914C	Travelling Salesman and Special Numbers brute force combinatorics dp	1800	4.3k
837F	Prefix Sums binary search brute force combinatorics math matrices	2400	1.1k
833C	Ever-Hungry Krakozyabra brute force combinatorics greedy math	2700	527
815B	Karen and Test brute force combinatorics constructive algorithms math	2200	1.7k
768F	Barrels and boxes brute force combinatorics math number theory probabilities	2300	1.2k
757E	Bash Plays with Functions brute force combinatorics dp number theory	2500	1.6k
756D	Bacterial Melee brute force combinatorics dp string suffix structures	2400	1.2k
750G	New Year and Binary Tree Paths bitmasks brute force combinatorics dp	3200	617

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