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Problemset

41 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
2176B	Optimal Shifts bitmasks greedy strings	1000	23.8k
2093G	Shorten the Array binary search bitmasks data structures dfs and similar greedy strings trees two pointers	1900	4k
2048C	Kevin and Binary Strings bitmasks brute force greedy implementation strings	1200	15.4k
1995D	Cases bitmasks brute force dp strings	2300	3k
1980G	Yasya and the Mysterious Tree bitmasks data structures dfs and similar graphs greedy strings trees	2300	1.8k
1979D	Fixing a Binary String bitmasks brute force constructive algorithms dp greedy hashing strings	1800	8k
1950G	Shuffling Songs bitmasks dfs and similar dp graphs hashing implementation strings	1900	6.3k
1930D2	Sum over all Substrings (Hard Version) bitmasks divide and conquer dp dsu greedy implementation strings	2100	3.1k
1867B	XOR Palindromes bitmasks constructive algorithms strings	1100	18.8k
1864E	Guess Game bitmasks data structures games math probabilities sortings strings trees	2100	3.1k
1851F	Lisa and the Martians bitmasks greedy math strings trees	1800	7.8k
1800F	Dasha and Nightmares bitmasks hashing meet-in-the-middle strings	1900	4.9k
1789F	Serval and Brain Power bitmasks brute force dp greedy implementation strings	2700	1k
1778C	Flexible String bitmasks brute force strings	1600	11.6k
1777F	Comfortably Numb bitmasks data structures divide and conquer strings trees	2400	1.5k
1771F	Hossam and Range Minimum Query binary search bitmasks data structures hashing probabilities strings trees	2500	1.7k
1739F	Keyboard Design bitmasks data structures dp string suffix structures strings	2600	671
1720D1	Xor-Subsequence (easy version) bitmasks brute force dp strings trees two pointers	1800	6.8k
1720D2	Xor-Subsequence (hard version) bitmasks data structures dp strings trees	2400	2.3k
1679E	Typical Party in Dorm bitmasks combinatorics dp strings	2400	1.5k
1659B	Bit Flipping bitmasks constructive algorithms greedy strings	1300	12.1k
1654F	Minimal String Xoration bitmasks data structures divide and conquer greedy hashing sortings strings	2800	1.5k
1635D	Infinite Set bitmasks dp math matrices number theory strings	1800	7.1k
1618F	Reverse bitmasks constructive algorithms dfs and similar implementation math strings	2000	4.8k
1584F	Strange LCS bitmasks dp graphs greedy strings	2600	1.2k
1550E	Stringforces binary search bitmasks brute force dp strings two pointers	2500	1.9k
1493E	Enormous XOR bitmasks constructive algorithms greedy math strings two pointers	2600	1.1k
1476E	Pattern Matching bitmasks data structures dfs and similar graphs hashing sortings strings	2300	2.8k
1469E	A Bit Similar bitmasks brute force hashing string suffix structures strings two pointers	2400	2.2k
1416C	XOR Inverse bitmasks data structures divide and conquer dp greedy math sortings strings trees	2000	5.2k
1411E	Poman Numbers bitmasks greedy math strings	2300	1.9k
1360F	Spy-string bitmasks brute force constructive algorithms dp hashing strings	1700	13.7k
1285D	Dr. Evil Underscores bitmasks brute force dfs and similar divide and conquer dp greedy strings trees	1900	8.7k
1144E	Median String bitmasks math number theory strings	1900	4.5k
1097H	Mateusz and an Infinite Sequence bitmasks brute force dp strings	3400	250
979D	Kuro and GCD and XOR and SUM binary search bitmasks brute force data structures dp dsu greedy math number theory strings trees	2200	2.3k
914F	Substrings in a String bitmasks brute force data structures string suffix structures strings	3000	2.5k
868D	Huge Strings bitmasks brute force dp implementation strings	2200	1k
754E	Dasha and cyclic table bitmasks brute force fft strings trees	2600	601
677C	Vanya and Label bitmasks combinatorics implementation strings	1500	7k
202A	LLPS binary search bitmasks brute force greedy implementation strings	800	20.1k

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