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Problemset

818 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
1567A	Domino Disaster implementation strings	800	31.9k
1562E	Rescue Niwen! dp greedy string suffix structures strings	2500	1.6k
1560D	Make a Power of Two greedy math strings	1300	19.6k
1560E	Polycarp and String Transformation binary search implementation sortings strings	1800	8.9k
1555D	Say No to Palindromes brute force constructive algorithms dp strings	1600	16k
1554D	Diane constructive algorithms greedy strings	1800	10.7k
1553B	Reverse String brute force dp hashing implementation strings	1300	15.6k
1553D	Backspace dp greedy strings two pointers	1500	15.3k
1552A	Subsequence Permutation sortings strings	800	25.5k
1551B1	Wonderful Coloring - 1 greedy strings	800	31.5k
1551C	Interesting Story greedy sortings strings	1500	14.7k
1550E	Stringforces binary search bitmasks brute force dp strings two pointers	2500	1.9k
1547B	Alphabetical Strings greedy implementation strings	800	28.1k
1539B	Love Song dp implementation strings	800	26.9k
1538E	Funny Substrings data structures hashing implementation matrices strings	2100	3.3k
1537E1	Erase and Extend (Easy Version) binary search brute force dp greedy hashing implementation string suffix structures strings two pointers	1600	16.9k
1537E2	Erase and Extend (Hard Version) binary search data structures greedy hashing string suffix structures strings two pointers	2200	6.4k
1536B	Prinzessin der Verurteilung brute force constructive algorithms strings	1200	26.2k
1535C	Unstable String binary search dp greedy implementation strings two pointers	1400	17.9k
1535F	String Distance binary search brute force data structures hashing implementation strings	3000	701
1532F	Prefixes and Suffixes *special strings	unrated	220
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
1511F	Chainword brute force data structures dp matrices string suffix structures strings	2700	598
1508A	Binary Literature constructive algorithms greedy implementation strings two pointers	1900	6.7k
1506C	Double-ended Strings brute force implementation strings	1000	37.5k
1506G	Maximize the Remaining String brute force data structures dp greedy strings	2000	4.9k
1504A	Déjà Vu constructive algorithms strings	800	22.9k
1499E	Chaotic Merge combinatorics dp math strings	2400	1.7k
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
1481A	Space Navigation greedy strings	800	25.8k
1480A	Yet Another String Game games greedy strings	800	27.3k
1476E	Pattern Matching bitmasks data structures dfs and similar graphs hashing sortings strings	2300	2.8k
1473B	String LCM brute force math number theory strings	1000	35.5k
1473D	Program data structures dp implementation strings	1700	11.1k
1469E	A Bit Similar bitmasks brute force hashing string suffix structures strings two pointers	2400	2.2k
1466C	Canine poetry dp greedy strings	1300	18.9k
1466G	Song of the Sirens combinatorics divide and conquer hashing math string suffix structures strings	2600	1.1k
1462B	Last Year's Substring dp implementation strings	800	29.4k
1451B	Non-Substring Subsequence dp greedy implementation strings	900	20.3k
1451C	String Equality dp greedy hashing implementation strings	1400	17.4k
1446B	Catching Cheaters dp strings	1800	9.3k
1437G	Death DBMS data structures string suffix structures strings trees	2600	1.3k
1431I	Cyclic Shifts *special strings	2900	56
1430E	String Reversal data structures greedy strings	1900	7.4k
1428C	ABBB brute force data structures greedy strings	1100	22.9k
1426F	Number of Subsequences combinatorics dp strings	2000	6.4k
1422E	Minlexes dp greedy implementation strings	2700	912
1421C	Palindromifier constructive algorithms strings	1400	13.6k
1416C	XOR Inverse bitmasks data structures divide and conquer dp greedy math sortings strings trees	2000	5.2k
1411D	Grime Zoo brute force greedy implementation strings	2100	2.8k
1411E	Poman Numbers bitmasks greedy math strings	2300	1.9k
1409F	Subsequences of Length Two dp strings	2100	5.2k
1404A	Balanced Bitstring implementation strings	1500	20k
1400A	String Similarity constructive algorithms strings	800	28k
1400F	x-prime Substrings brute force dfs and similar dp string suffix structures strings	2800	1.2k
1397A	Juggling Letters greedy strings	800	29.9k
1394E	Boboniu and Banknote Collection strings	3500	183
1393E1	Twilight and Ancient Scroll (easier version) dp hashing implementation string suffix structures strings	2800	482
1393E2	Twilight and Ancient Scroll (harder version) dp hashing implementation string suffix structures strings two pointers	3200	521
1384A	Common Prefixes constructive algorithms greedy strings	1200	19.8k
1383A	String Transformation 1 dsu graphs greedy sortings strings trees two pointers	1700	11.4k
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
1379A	Acacius and String brute force implementation strings	1500	12.4k
1374C	Move Brackets greedy strings	1000	66.8k
1369B	AccurateLee greedy implementation strings	1200	25.7k
1368B	Codeforces Subsequences brute force constructive algorithms greedy math strings	1500	21.7k
1367A	Short Substrings implementation strings	800	68.8k
1366G	Construct the String data structures dp strings	2700	649
1363B	Subsequence Hate implementation strings	1400	26.5k
1363F	Rotating Substrings dp strings	2600	1.8k
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
1336C	Kaavi and Magic Spell dp strings	2200	4.2k
1332C	K-Complete Word dfs and similar dsu greedy implementation strings	1500	21.7k
1331F	Elementary! *special brute force dp strings	unrated	607
1326D1	Prefix-Suffix Palindrome (Easy version) hashing string suffix structures strings	1500	13.4k
1326D2	Prefix-Suffix Palindrome (Hard version) binary search greedy hashing string suffix structures strings	1800	12k
1324B	Yet Another Palindrome Problem brute force strings	1100	31k
1321C	Remove Adjacent brute force constructive algorithms greedy strings	1600	10.6k
1320D	Reachable Strings data structures hashing strings	2500	1.7k
1316B	String Modification brute force constructive algorithms implementation sortings strings	1400	11.8k
1315B	Homecoming binary search dp greedy strings	1300	9.7k
1313E	Concatenation with intersection data structures hashing strings two pointers	2700	778
1310C	Au Pont Rouge binary search dp strings	2800	779
1307C	Cow and Message brute force dp math strings	1500	12.8k
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
1303A	Erasing Zeroes implementation strings	800	37.2k
1303E	Erase Subsequences dp strings	2200	3.4k
1301A	Three Strings implementation strings	800	20.2k
1301C	Ayoub's function binary search combinatorics greedy math strings	1700	10k
1297H	Paint the String *special dp strings	unrated	53
1295B	Infinite Prefixes math strings	1700	10k

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