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Problemset

37 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
2215C	Oriented Journey bitmasks brute force communication constructive algorithms graphs interactive trees	2200	819
2157G	Isaac's Queries bitmasks brute force constructive algorithms dfs and similar divide and conquer dp greedy interactive math probabilities	2800	672
2086E	Zebra-like Numbers bitmasks brute force constructive algorithms dfs and similar dp greedy math	2400	1.7k
2071D2	Infinite Sequence (Hard Version) bitmasks brute force constructive algorithms data structures dp implementation math	2500	1.1k
2049E	Broken Queries binary search bitmasks brute force constructive algorithms implementation interactive	2400	1.6k
1981C	Turtle and an Incomplete Sequence bitmasks brute force constructive algorithms greedy implementation math	1800	6.4k
1979D	Fixing a Binary String bitmasks brute force constructive algorithms dp greedy hashing strings	1800	8k
1956D	Nene and the Mex Operator bitmasks brute force constructive algorithms divide and conquer dp greedy implementation math	2000	4.9k
1955H	The Most Reckless Defense bitmasks brute force constructive algorithms dp flows graph matchings shortest paths	2300	1.6k
1946D	Birthday Gift bitmasks brute force constructive algorithms greedy implementation	1900	5.7k
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks brute force combinatorics constructive algorithms dfs and similar math	2300	1.2k
1909E	Multiple Lamps bitmasks brute force constructive algorithms math number theory	2400	1.7k
1903B	StORage room bitmasks brute force constructive algorithms greedy	1200	15k
1882B	Sets and Union bitmasks brute force constructive algorithms greedy	1300	17.6k
1835C	Twin Clusters bitmasks brute force constructive algorithms math probabilities	2600	1.2k
1789D	Serval and Shift-Shift-Shift bitmasks brute force constructive algorithms implementation	2200	2k
1710C	XOR Triangle bitmasks brute force constructive algorithms dp greedy math	2500	1.7k
1689E	ANDfinity bitmasks brute force constructive algorithms dfs and similar dsu graphs	2500	1.4k
1659E	AND-MEX Walk bitmasks brute force constructive algorithms dfs and similar dsu graphs	2200	2k
1646C	Factorials and Powers of Two bitmasks brute force constructive algorithms dp math	1500	20.5k
1560F1	Nearest Beautiful Number (easy version) binary search bitmasks brute force constructive algorithms dfs and similar greedy	1900	6.8k
1560F2	Nearest Beautiful Number (hard version) bitmasks brute force constructive algorithms dfs and similar dp greedy	2100	5.1k
1552D	Array Differentiation bitmasks brute force constructive algorithms dfs and similar dp graphs math	1800	8k
1500C	Matrix Sorting bitmasks brute force constructive algorithms greedy two pointers	2600	983
1438E	Yurii Can Do Everything binary search bitmasks brute force constructive algorithms divide and conquer two pointers	2500	1.5k
1415D	XOR-gun bitmasks brute force constructive algorithms	2000	6.3k
1391D	505 bitmasks brute force constructive algorithms dp greedy implementation	2000	5.8k
1360F	Spy-string bitmasks brute force constructive algorithms dp hashing strings	1700	13.7k
1360H	Binary Median binary search bitmasks brute force constructive algorithms	2100	4.9k
1338C	Perfect Triples bitmasks brute force constructive algorithms divide and conquer math	2200	3.5k
1166E	The LCMs Must be Large bitmasks brute force constructive algorithms math number theory	2100	3k
1163E	Magical Permutation bitmasks brute force constructive algorithms data structures graphs math	2400	1.1k
1151B	Dima and a Bad XOR bitmasks brute force constructive algorithms dp	1600	13.1k
868C	Qualification Rounds bitmasks brute force constructive algorithms dp	1500	5.1k
581D	Three Logos bitmasks brute force constructive algorithms geometry implementation math	1700	4.9k
467B	Fedor and New Game bitmasks brute force constructive algorithms implementation	1100	43.7k

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