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Problemset

130 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
2210D	A Simple RBS Problem constructive algorithms math strings trees	2100	2.3k
2192B	Flipping Binary String constructive algorithms strings	1000	15.9k
2192E	Swap to Rearrange constructive algorithms dfs and similar graph matchings graphs greedy strings	2100	2.3k
2190B1	Sub-RBS (Easy Version) combinatorics constructive algorithms dp greedy strings two pointers	1400	11.5k
2189E	Majority Wins? constructive algorithms greedy math strings	2600	882
2182A	New Year String constructive algorithms greedy implementation strings	800	26.2k
2158D	Palindrome Flipping brute force constructive algorithms graphs implementation shortest paths strings	2000	3.4k
2144F	Bracket Groups brute force constructive algorithms dp string suffix structures strings	2700	1.1k
2143E	Make Good constructive algorithms greedy math strings	2400	2.1k
2125A	Difficult Contest constructive algorithms implementation sortings strings	800	28.5k
2121B	Above the Clouds constructive algorithms greedy strings	800	32.8k
2092D	Mishkin Energizer brute force constructive algorithms greedy implementation strings	1800	7k
2092F	Andryusha and CCB brute force constructive algorithms greedy math number theory strings	2900	438
2072B	Having Been a Treasurer in the Past, I Help Goblins Deceive combinatorics constructive algorithms strings	900	31.5k
2069E	A, B, AB and BA constructive algorithms greedy sortings strings	2300	2k
2065A	Skibidus and Amog'u brute force constructive algorithms greedy implementation strings	800	56.9k
2065E	Skibidus and Rizz constructive algorithms greedy strings	1600	12.3k
2062A	String constructive algorithms greedy math strings	800	28.5k
2059E1	Stop Gaming (Easy Version) brute force constructive algorithms greedy hashing strings	2500	907
2059E2	Stop Gaming (Hard Version) brute force constructive algorithms data structures hashing strings	2900	355
2039B	Shohag Loves Strings constructive algorithms greedy implementation strings	1000	17.6k
2029B	Replacement constructive algorithms games strings	1100	12k
2023C	C+K+S constructive algorithms dfs and similar graphs greedy hashing implementation strings	2400	1.4k
2013C	Password Cracking constructive algorithms interactive strings	1400	14.9k
2003C	Turtle and Good Pairs constructive algorithms greedy sortings strings	1200	22k
1994H	Fortnite combinatorics constructive algorithms games greedy hashing interactive math number theory strings	3500	779
1992E	Novice's Mistake brute force constructive algorithms implementation math strings	1700	11k
1979D	Fixing a Binary String bitmasks brute force constructive algorithms dp greedy hashing strings	1800	8k
1970D1	Arithmancy (Easy) brute force constructive algorithms interactive strings	2100	967
1970D2	Arithmancy (Medium) constructive algorithms interactive probabilities strings	2600	332
1965C	Folding Strip constructive algorithms greedy strings	2300	2.5k
1951E	No Palindromes brute force constructive algorithms divide and conquer greedy hashing implementation math strings	2000	4.6k
1935A	Entertainment in MAC constructive algorithms strings	800	30.5k
1927B	Following the String constructive algorithms greedy strings	900	38.6k
1925A	We Got Everything Covered! constructive algorithms greedy strings	800	31.3k
1924A	Did We Get Everything Covered? constructive algorithms dp greedy shortest paths strings	1500	17k
1922A	Tricky Template constructive algorithms implementation strings	800	29k
1907C	Removal of Unattractive Pairs constructive algorithms greedy math strings	1200	23.5k
1900A	Cover in Water constructive algorithms greedy implementation strings	800	69.9k
1867B	XOR Palindromes bitmasks constructive algorithms strings	1100	18.8k
1864B	Swap and Reverse constructive algorithms greedy sortings strings	1100	16.8k
1860A	Not a Substring constructive algorithms strings	900	23.8k
1844D	Row Major constructive algorithms greedy math number theory strings	1400	14k
1823D	Unique Palindromes constructive algorithms math strings	1900	4.4k
1812J	Unmysterious Language *special constructive algorithms strings	unrated	6.3k
1800E1	Unforgivable Curse (easy version) brute force constructive algorithms dsu graphs greedy strings	1400	15.9k
1800E2	Unforgivable Curse (hard version) brute force constructive algorithms dfs and similar dsu graphs greedy strings	1500	15.6k
1781C	Equal Frequencies brute force constructive algorithms greedy implementation sortings strings	1600	11k
1779A	Hall of Fame constructive algorithms greedy strings	800	24.1k
1776G	Another Wine Tasting Event combinatorics constructive algorithms math strings	2100	2.4k
1758A	SSeeeeiinngg DDoouubbllee constructive algorithms strings	800	27.2k
1742F	Smaller constructive algorithms greedy strings	1500	14.3k
1736D	Equal Binary Subsequences constructive algorithms geometry greedy implementation strings	2200	2.8k
1730D	Prefixes and Suffixes constructive algorithms strings two pointers	2200	3.1k
1729C	Jumping on Tiles constructive algorithms strings	1100	21.8k
1709C	Recover an RBS constructive algorithms greedy implementation strings	1800	10.5k
1706A	Another String Minimization Problem 2-sat constructive algorithms greedy string suffix structures strings	800	24.3k
1704G	Mio and Lucky Array constructive algorithms fft math strings	3500	168
1697C	awoo's Favorite Problem binary search constructive algorithms data structures greedy implementation strings two pointers	1400	15.9k
1691C	Sum of Substrings brute force constructive algorithms greedy math strings	1400	17.4k
1688C	Manipulating History constructive algorithms greedy strings	1700	8.8k
1684A	Digit Minimization constructive algorithms games math strings	800	25k
1663G	Six Characters *special constructive algorithms strings	unrated	231
1659B	Bit Flipping bitmasks constructive algorithms greedy strings	1300	12.1k
1624E	Masha-forgetful brute force constructive algorithms dp hashing implementation strings	2000	4.7k
1618F	Reverse bitmasks constructive algorithms dfs and similar implementation math strings	2000	4.8k
1617A	Forbidden Subsequence constructive algorithms greedy sortings strings	800	17k
1555D	Say No to Palindromes brute force constructive algorithms dp strings	1600	16k
1554D	Diane constructive algorithms greedy strings	1800	10.7k
1536B	Prinzessin der Verurteilung brute force constructive algorithms strings	1200	26.2k
1530E	Minimax constructive algorithms greedy strings	2100	3.4k
1526D	Kill Anton brute force constructive algorithms data structures math strings	2200	2.8k
1512C	A-B Palindrome constructive algorithms implementation strings	1200	22k
1511D	Min Cost String brute force constructive algorithms graphs greedy strings	1600	12.6k
1508A	Binary Literature constructive algorithms greedy implementation strings two pointers	1900	6.7k
1504A	Déjà Vu constructive algorithms strings	800	22.9k
1496A	Split it! brute force constructive algorithms greedy strings	900	22.4k
1493C	K-beautiful Strings binary search brute force constructive algorithms greedy strings	2000	5k
1493E	Enormous XOR bitmasks constructive algorithms greedy math strings two pointers	2600	1.1k
1421C	Palindromifier constructive algorithms strings	1400	13.6k
1400A	String Similarity constructive algorithms strings	800	28k
1384A	Common Prefixes constructive algorithms greedy strings	1200	19.8k
1381A1	Prefix Flip (Easy Version) constructive algorithms data structures strings	1300	21.9k
1381A2	Prefix Flip (Hard Version) constructive algorithms data structures implementation strings two pointers	1700	14.5k
1368B	Codeforces Subsequences brute force constructive algorithms greedy math strings	1500	21.7k
1360F	Spy-string bitmasks brute force constructive algorithms dp hashing strings	1700	13.7k
1348C	Phoenix and Distribution constructive algorithms greedy sortings strings	1600	15.6k
1342B	Binary Period constructive algorithms strings	1100	24.7k
1321C	Remove Adjacent brute force constructive algorithms greedy strings	1600	10.6k
1316B	String Modification brute force constructive algorithms implementation sortings strings	1400	11.8k
1305B	Kuroni and Simple Strings constructive algorithms greedy strings two pointers	1200	12.6k
1304B	Longest Palindrome brute force constructive algorithms greedy implementation strings	1100	18.9k
1290B	Irreducible Anagrams binary search constructive algorithms data structures strings two pointers	1800	7.4k
1282D	Enchanted Artifact constructive algorithms interactive strings	2300	2.5k
1268A	Long Beautiful Integer constructive algorithms greedy implementation strings	1700	9.2k
1267L	Lexicography constructive algorithms strings	1800	3.4k
1256F	Equalizing Two Strings constructive algorithms sortings strings	2000	3.7k
1231E	Middle-Out constructive algorithms greedy strings	2200	951
1202D	Print a 1337-string... combinatorics constructive algorithms math strings	1900	5.5k
1178E	Archaeology brute force constructive algorithms greedy strings	1900	4.5k

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