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Problemset

17 problems · filtered by 3 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
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
1930D2	Sum over all Substrings (Hard Version) bitmasks divide and conquer dp dsu greedy implementation strings	2100	3.1k
1851F	Lisa and the Martians bitmasks greedy math strings trees	1800	7.8k
1789F	Serval and Brain Power bitmasks brute force dp greedy implementation strings	2700	1k
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
1584F	Strange LCS bitmasks dp graphs greedy strings	2600	1.2k
1493E	Enormous XOR bitmasks constructive algorithms greedy math strings two pointers	2600	1.1k
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
1285D	Dr. Evil Underscores bitmasks brute force dfs and similar divide and conquer dp greedy strings trees	1900	8.7k
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
202A	LLPS binary search bitmasks brute force greedy implementation strings	800	20.1k

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