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Problemset

893 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
1566H	Xor-quiz constructive algorithms dp interactive math number theory	3200	177
1562B	Scenes From a Memory brute force constructive algorithms implementation math number theory	1000	20.7k
1562F	Tubular Bells interactive math number theory probabilities	2900	467
1561D1	Up the Strip (simplified version) brute force data structures dp math number theory	1700	6.2k
1559E	Mocha and Stars combinatorics dp fft math number theory	2200	2.8k
1558B	Up the Strip brute force dp math number theory two pointers	1900	5.3k
1554E	You dfs and similar dp math number theory	2600	1.4k
1553A	Digits Sum math number theory	800	34.6k
1553G	Common Divisor Graph brute force constructive algorithms dsu graphs hashing math number theory	2700	1.3k
1552H	Guess the Perimeter binary search interactive number theory	3300	470
1549A	Gregor and Cryptography math number theory	800	35.9k
1548B	Integers Have Friends binary search data structures divide and conquer math number theory two pointers	1800	11.6k
1548D1	Gregor and the Odd Cows (Easy) bitmasks geometry math number theory	2300	1.6k
1548D2	Gregor and the Odd Cows (Hard) brute force geometry math number theory	3300	346
1547F	Array Stabilization (GCD version) binary search brute force data structures divide and conquer number theory two pointers	1900	7.2k
1543A	Exciting Bets greedy math number theory	900	43.3k
1542B	Plus and Multiply constructive algorithms math number theory	1500	26.9k
1542C	Strange Function math number theory	1600	16.4k
1541B	Pleasant Pairs brute force implementation math number theory	1200	40.3k
1538D	Another Problem About Dividing Numbers constructive algorithms math number theory	1700	15.5k
1538F	Interesting Function binary search dp math number theory	1500	22.5k
1537D	Deleting Divisors games math number theory	1700	13.8k
1536C	Diluc and Kaeya data structures dp hashing number theory	1500	16.3k
1535B	Array Reodering brute force greedy math number theory sortings	900	34.5k
1526B	I Hate 1111 dp math number theory	1400	37.6k
1525A	Potion-making math number theory	800	27.1k
1521A	Nastia and Nearly Good Numbers constructive algorithms math number theory	1000	42.6k
1521B	Nastia and a Good Array constructive algorithms math number theory	1300	23.1k
1520B	Ordinary Numbers brute force math number theory	800	50.4k
1519C	Berland Regional brute force data structures greedy number theory sortings	1400	23.4k
1516D	Cut binary search data structures dp graphs number theory two pointers	2100	5.3k
1515B	Phoenix and Puzzle brute force geometry math number theory	1000	27.3k
1515G	Phoenix and Odometers dfs and similar graphs math number theory	2700	1.4k
1514A	Perfectly Imperfect Array math number theory	800	25.5k
1514C	Product 1 Modulo N greedy number theory	1600	18.8k
1513D	GCD and MST constructive algorithms dsu graphs greedy number theory sortings	2000	6.7k
1512G	Short Task brute force dp math number theory	1700	9.6k
1511B	GCD Length constructive algorithms math number theory	1100	24.9k
1510D	Digits dp math number theory	2100	2.1k
1505B	DMCA *special implementation number theory	1600	6.6k
1505D	Xenolith? Hippodrome? *special number theory	1800	893
1500B	Two chandeliers binary search brute force chinese remainder theorem math number theory	2200	2.4k
1499D	The Number of Pairs dp math number theory	2100	7.3k
1497D	Genius bitmasks dp graphs number theory	2500	1.8k
1497E1	Square-Free Division (easy version) data structures dp greedy math number theory two pointers	1700	9.2k
1497E2	Square-Free Division (hard version) data structures dp greedy math number theory two pointers	2500	2k
1493D	GCD of an Array brute force data structures hashing implementation math number theory sortings two pointers	2100	5.9k
1493F	Enchanted Matrix bitmasks interactive number theory	2600	525
1491E	Fib-tree brute force dfs and similar divide and conquer number theory trees	2400	2.4k
1488G	Painting Numbers *special data structures greedy number theory	2500	137
1487B	Cat Cycle math number theory	1200	30.2k
1487D	Pythagorean Triples binary search brute force math number theory	1500	20.9k
1485A	Add and Divide brute force greedy math number theory	1000	35.1k
1485C	Floor and Mod binary search brute force math number theory	1700	11.2k
1485D	Multiples and Power Differences constructive algorithms graphs math number theory	2200	5.7k
1479E	School Clubs dp fft math number theory probabilities	3500	469
1477A	Nezzar and Board constructive algorithms math number theory	1800	6.6k
1475A	Odd Divisor math number theory	900	90.9k
1475G	Strange Beauty dp math number theory sortings	1900	8k
1474B	Different Divisors binary search constructive algorithms greedy math number theory	1000	42.4k
1473B	String LCM brute force math number theory strings	1000	35.5k
1471A	Strange Partition greedy math number theory	900	40.4k
1470B	Strange Definition bitmasks graphs hashing math number theory	1900	6.8k
1469D	Ceil Divisions brute force constructive algorithms math number theory	1700	10.3k
1468F	Full Turn geometry hashing number theory	1700	4.2k
1468L	Prime Divisors Selection binary search greedy math number theory	2700	382
1462D	Add to Neighbour and Remove greedy math number theory	1400	18.4k
1458A	Row GCD math number theory	1600	26.4k
1455A	Strange Functions math number theory	800	27.5k
1454D	Number into Sequence constructive algorithms math number theory	1300	22.5k
1444A	Division brute force math number theory	1500	14.6k
1436F	Sum Over Subsets combinatorics math number theory	2800	693
1427E	Xum bitmasks constructive algorithms math matrices number theory	2500	1.7k
1423K	Lonely Numbers binary search math number theory two pointers	1600	5.5k
1422F	Boring Queries data structures math number theory	2700	1.4k
1419E	Decryption constructive algorithms implementation math number theory	2100	3.5k
1418F	Equal Product data structures math number theory two pointers	3000	518
1411B	Fair Numbers brute force number theory	1000	32.4k
1409C	Yet Another Array Restoration brute force math number theory	1200	24.8k
1407B	Big Vova brute force greedy math number theory	1300	18.2k
1406E	Deleting Numbers interactive math number theory	2600	1.9k
1404D	Game of Pairs constructive algorithms dfs and similar interactive math number theory	2800	1.3k
1401C	Mere Array constructive algorithms math number theory sortings	1300	27.3k
1401D	Maximum Distributed Tree dfs and similar dp greedy implementation math number theory sortings trees	1800	10.7k
1398G	Running Competition bitmasks fft math number theory	2600	1.3k
1397B	Power Sequence brute force math number theory sortings	1500	15.6k
1396A	Multiples of Length constructive algorithms greedy number theory	1600	16.8k
1389A	LCM Problem constructive algorithms greedy math number theory	800	51.4k
1389E	Calendar Ambiguity math number theory	2200	3.8k
1388A	Captain Flint and Crew Recruitment brute force greedy math number theory	800	26k
1379B	Dubious Cyrpto binary search brute force math number theory	1500	13.2k
1375I	Cubic Lattice geometry math matrices number theory	3500	282
1372B	Omkar and Last Class of Math greedy math number theory	1300	37.9k
1371E1	Asterism (Easy Version) binary search brute force combinatorics math number theory sortings	1900	5.5k
1371E2	Asterism (Hard Version) binary search combinatorics dp math number theory sortings	2300	2.5k
1370A	Maximum GCD greedy implementation math number theory	800	66.6k
1370B	GCD Compression constructive algorithms math number theory	1100	25.3k
1370C	Number Game games math number theory	1400	27.5k
1367E	Necklace Assembly brute force dfs and similar dp graphs greedy number theory	1900	5.9k
1366D	Two Divisors constructive algorithms math number theory	2000	12.6k

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