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Problemset

93 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
2234D	XOR, Expression and Two Binary Numbers bitmasks divide and conquer dp math number theory	1500	8.6k
2234E	Vlad, Misha and Two Arrays brute force combinatorics dfs and similar divide and conquer math	2100	1.9k
2223F	Zhily and Colorful Strings divide and conquer fft math	3400	107
2219B1	Unique Values (Easy version) binary search constructive algorithms divide and conquer interactive math	1900	4.2k
2211F	Learning Binary Search combinatorics divide and conquer dp math	2400	1k
2207C	Where's My Water? data structures divide and conquer dp math	1600	6.4k
2203F	Binary Search with One Swap binary search divide and conquer dp hashing math two pointers	2600	457
2200H	Six Seven divide and conquer math number theory strings trees	2600	528
2180E	No Effect XOR bitmasks divide and conquer dp greedy math	2300	1.8k
2173F	Isla's Memory Thresholds binary search brute force data structures divide and conquer math	2600	623
2169D2	Removal of a Sequence (Hard Version) binary search divide and conquer greedy implementation math number theory	2100	2.4k
2157F	Git Gud brute force constructive algorithms divide and conquer math ternary search	2400	1.5k
2157G	Isaac's Queries bitmasks brute force constructive algorithms dfs and similar divide and conquer dp greedy interactive math probabilities	2800	672
2150E1	Hidden Single (Version 1) divide and conquer interactive math probabilities sortings	2600	2.1k
2150E2	Hidden Single (Version 2) binary search divide and conquer interactive math probabilities	2800	669
2145F	Long Journey dfs and similar divide and conquer dp graphs greedy math matrices number theory	2500	1.1k
2145G	Cost of Coloring combinatorics divide and conquer dp fft math	2900	642
2121G	Gangsta data structures divide and conquer math sortings	1900	5.5k
2077E	Another Folding Strip combinatorics constructive algorithms data structures divide and conquer dp greedy math	2700	627
2074F	Counting Necessary Nodes bitmasks divide and conquer greedy implementation math	2000	2.5k
2072G	I've Been Flipping Numbers for 300 Years and Calculated the Sum binary search brute force combinatorics divide and conquer math number theory	2200	2.2k
2070E	Game with Binary String constructive algorithms data structures divide and conquer games greedy math	2200	1.9k
2065H	Bro Thinks He's Him combinatorics data structures divide and conquer dp math matrices	2200	2k
2053C	Bewitching Stargazer bitmasks divide and conquer dp math	1500	12.6k
2050F	Maximum modulo equality data structures divide and conquer math number theory	1700	11.3k
2048F	Kevin and Math Class brute force data structures divide and conquer dp implementation math trees	2500	1.3k
2036G	Library of Magic binary search constructive algorithms divide and conquer interactive math number theory	2200	1.7k
2035D	Yet Another Real Number Problem binary search data structures divide and conquer greedy implementation math	1800	5.9k
2018E1	Complex Segments (Easy Version) binary search data structures divide and conquer dsu greedy math sortings	3300	246
2018E2	Complex Segments (Hard Version) binary search data structures divide and conquer dsu greedy math sortings	3400	210
2006C	Eri and Expanded Sets data structures divide and conquer math number theory two pointers	2300	2.1k
2003E1	Turtle and Inversions (Easy Version) brute force divide and conquer dp greedy math	2600	902
2003E2	Turtle and Inversions (Hard Version) brute force data structures divide and conquer dp greedy math two pointers	2700	654
1983D	Swap Dilemma constructive algorithms data structures divide and conquer greedy math sortings	1700	11.5k
1982E	Number of k-good subarrays bitmasks brute force combinatorics divide and conquer dp math meet-in-the-middle	2300	1.9k
1975F	Set bitmasks brute force combinatorics dfs and similar divide and conquer dp math	2600	1.1k
1956D	Nene and the Mex Operator bitmasks brute force constructive algorithms divide and conquer dp greedy implementation math	2000	4.9k
1951E	No Palindromes brute force constructive algorithms divide and conquer greedy hashing implementation math strings	2000	4.6k
1936E	Yet Yet Another Permutation Problem divide and conquer fft math	3400	155
1922E	Increasing Subsequences bitmasks constructive algorithms divide and conquer greedy math	1800	9.3k
1912B	Blueprint for Seating combinatorics divide and conquer math	2100	1.5k
1906K	Deck-Building Game divide and conquer math	2500	618
1902F	Trees and XOR Queries Again data structures dfs and similar divide and conquer graphs implementation math trees	2400	1.5k
1896D	Ones and Twos binary search data structures divide and conquer math two pointers	1700	7.1k
1896H1	Cyclic Hamming (Easy Version) brute force divide and conquer dp fft math number theory	3400	181
1887D	Split binary search data structures divide and conquer dsu math trees two pointers	2700	1.3k
1879D	Sum of XOR Functions bitmasks combinatorics divide and conquer dp math	1700	11.1k
1874D	Jellyfish and Miku divide and conquer dp math probabilities	2800	984
1848F	Vika and Wiki binary search bitmasks combinatorics divide and conquer dp math	2400	2.1k
1843F2	Omsk Metro (hard version) data structures dfs and similar divide and conquer dp math trees	2300	2.2k
1794D	Counting Factorizations combinatorics divide and conquer dp math number theory	1900	4.6k
1790F	Timofey and Black-White Tree brute force dfs and similar divide and conquer graphs greedy math shortest paths trees	2100	4.2k
1770G	Koxia and Bracket divide and conquer fft math	3400	196
1748E	Yet Another Array Counting Problem binary search data structures divide and conquer dp flows math trees	2300	2.8k
1734F	Zeros and Ones bitmasks divide and conquer dp math	2500	1k
1684H	Hard Cut constructive algorithms dfs and similar divide and conquer math	3400	305
1673F	Anti-Theft Road Planning bitmasks constructive algorithms divide and conquer greedy interactive math	2400	979
1663B	Mike's Sequence *special divide and conquer implementation math	unrated	3.6k
1654H	Three Minimums combinatorics constructive algorithms divide and conquer dp fft math	3500	108
1641E	Special Positions combinatorics divide and conquer fft math	3300	365
1616H	Keep XOR Low bitmasks combinatorics data structures divide and conquer dp math	3000	1.4k
1567E	Non-Decreasing Dilemma data structures divide and conquer math	2200	4.2k
1553I	Stairs combinatorics divide and conquer dp fft math	3400	369
1548B	Integers Have Friends binary search data structures divide and conquer math number theory two pointers	1800	11.6k
1548E	Gregor and the Two Painters data structures divide and conquer graphs greedy math	3400	618
1543E	The Final Pursuit bitmasks constructive algorithms divide and conquer graphs greedy math	2700	499
1466G	Song of the Sirens combinatorics divide and conquer hashing math string suffix structures strings	2600	1.1k
1416C	XOR Inverse bitmasks data structures divide and conquer dp greedy math sortings strings trees	2000	5.2k
1379E	Inverse Genealogy constructive algorithms divide and conquer dp math trees	2800	538
1338C	Perfect Triples bitmasks brute force constructive algorithms divide and conquer math	2200	3.5k
1268D	Invertation in Tournament brute force divide and conquer graphs math	3200	820
1261F	Xor-Set bitmasks divide and conquer math	3100	515
1257G	Divisor Set divide and conquer fft greedy math number theory	2600	798
1186E	Vus the Cossack and a Field divide and conquer implementation math	2500	768
1175F	The Number of Subpermutations brute force data structures divide and conquer hashing math	2500	2.8k
1167B	Lost Numbers brute force divide and conquer interactive math	1400	17.3k
1114F	Please, another Queries on Array? bitmasks data structures divide and conquer math number theory	2400	2.6k
1111C	Creative Snap binary search brute force divide and conquer math	1700	7.2k
1100F	Ivan and Burgers data structures divide and conquer greedy math	2500	3.9k
1041F	Ray in the tube data structures divide and conquer dp math	2500	1.7k
914G	Sum the Fibonacci bitmasks divide and conquer dp fft math	2600	1.3k
865F	Egg Roulette bitmasks brute force divide and conquer math meet-in-the-middle	3300	81
850E	Random Elections bitmasks brute force divide and conquer fft math	2800	570
848E	Days of Floral Colours combinatorics divide and conquer dp fft math	3400	283
809E	Surprise me! divide and conquer math number theory trees	3100	992
773F	Test Data Generation combinatorics divide and conquer dp fft math number theory	3400	281
755G	PolandBall and Many Other Balls combinatorics divide and conquer dp fft math number theory	3200	1.1k
662C	Binary Table bitmasks brute force divide and conquer dp fft math	2600	2.6k
632E	Thief in a Shop divide and conquer dp fft math	2400	3.7k
603E	Pastoral Oddities data structures divide and conquer dsu math trees	3000	1.6k
513B2	Permutations bitmasks divide and conquer math	1800	2.9k
117D	Not Quick Transformation divide and conquer math	2500	412
68D	Half-decay tree data structures divide and conquer dp math probabilities	2500	540

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