math - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	1017	P1696G Fishingprince Plays With Array Again brute force data structures geometry math *3300	0 / 0	10
	1016	P1696H Maximum Product? brute force combinatorics dp greedy implementation math two pointers *3500	0 / 0	10
	1005	P1697E Coloring brute force combinatorics constructive algorithms dp geometry graphs greedy implementation math *2400	0 / 0	9
	991	P1698F Equal Reversal constructive algorithms graphs implementation math *2800	0 / 0	10
	990	P1698G Long Binary String bitmasks math matrices meet-in-the-middle number theory *2900	0 / 0	10
	988	P1699A The Third Three Number Problem constructive algorithms math *800	0 / 0	3
	984	P1699C The Third Problem combinatorics constructive algorithms math *1700	0 / 0	5
	982	P1699E Three Days Grace data structures dp greedy math number theory two pointers *2600	0 / 0	10
	981	P1700A Optimal Path constructive algorithms greedy math *800	0 / 0	3
	980	P1700B Palindromic Numbers constructive algorithms implementation math *1100	0 / 0	3
	978	P1700D River Locks binary search dp greedy math *1900	0 / 0	6
	972	P1701D Permutation Restoration binary search data structures greedy math sortings two pointers *1900	0 / 0	6
	970	P1701F Points combinatorics data structures implementation math matrices *2500	0 / 0	9
	964	P1702F Equate Multisets constructive algorithms data structures greedy math number theory *1700	0 / 0	5
	955	P1703G Good Key, Bad Key bitmasks brute force dp greedy math *1600	0 / 0	5
	951	P1704D Magical Array constructive algorithms hashing implementation math *1900	0 / 0	6
	950	P1704E Count Seconds brute force constructive algorithms dp graphs implementation math *2200	0 / 0	8
	948	P1704G Mio and Lucky Array constructive algorithms fft math strings *3500	0 / 0	10
	947	P1704H1 Game of AI (easy version) combinatorics constructive algorithms dp fft math *3200	0 / 0	10
	946	P1704H2 Game of AI (hard version) combinatorics fft math *3500	0 / 0	10
	942	P1705D Mark and Lightbulbs combinatorics constructive algorithms greedy math sortings *1800	0 / 0	6
	938	P1706B Making Towers dp greedy math *1100	0 / 0	3
	935	P1706D2 Chopping Carrots (Hard Version) brute force constructive algorithms data structures dp greedy math number theory two pointers *2400	0 / 0	9
	930	P1707D Partial Virtual Trees combinatorics dfs and similar dp math trees *3000	0 / 0	10
	927	P1708A Difference Operations greedy math *800	0 / 0	3
	926	P1708B Difference of GCDs constructive algorithms math *1100	0 / 0	3
	925	P1709A Three Doors brute force greedy implementation math *800	0 / 0	3
	922	P1709D Rorororobot binary search data structures greedy math *1700	0 / 0	5
	920	P1709F Multiset of Strings bitmasks brute force dp fft flows graphs math meet-in-the-middle trees *2500	0 / 0	9
	919	P1710A Color the Picture constructive algorithms greedy math *1500	0 / 0	5
	918	P1710B Rain binary search brute force data structures geometry greedy implementation math *2100	0 / 0	7
	917	P1710C XOR Triangle bitmasks brute force constructive algorithms dp greedy math *2500	0 / 0	9
	908	P1712E1 LCM Sum (easy version) binary search brute force combinatorics math number theory two pointers *2300	0 / 0	8
	907	P1712E2 LCM Sum (hard version) brute force data structures math number theory two pointers *2500	0 / 0	9
	903	P1713C Build Permutation constructive algorithms dp math *1200	0 / 0	4
	900	P1713F Lost Array bitmasks combinatorics constructive algorithms dp math *2900	0 / 0	10
	899	P1714A Everyone Loves to Sleep implementation math *900	1 / 1	3
	895	P1714E Add Modulo 10 brute force math number theory *1400	0 / 0	4
	892	P1715A Crossmarket constructive algorithms greedy math *800	0 / 0	3
	891	P1715B Beautiful Array constructive algorithms greedy math *1000	0 / 0	3
	890	P1715C Monoblock combinatorics data structures implementation math *1700	0 / 0	5
	887	P1715F Crop Squares constructive algorithms geometry interactive math *2700	0 / 0	10
	886	P1716A 2-3 Moves greedy math *800	0 / 0	3
	885	P1716B Permutation Chain constructive algorithms math *800	0 / 0	3
	883	P1716D Chip Move brute force dp math *2000	0 / 0	7
	881	P1716F Bags with Balls combinatorics dp math number theory *2500	0 / 0	9
	880	P1717A Madoka and Strange Thoughts math number theory *800	0 / 0	3
	877	P1717D Madoka and The Corruption Scheme combinatorics constructive algorithms greedy math *1900	0 / 0	6
	876	P1717E Madoka and The Best University math number theory *2200	0 / 0	8
	872	P1718B Fibonacci Strings greedy implementation math number theory *2000	0 / 0	7
	871	P1718C Tonya and Burenka-179 data structures greedy math number theory *2400	0 / 0	9
	870	P1718D Permutation for Burenka data structures graph matchings greedy math trees *3300	0 / 0	10
	869	P1718E Impressionism constructive algorithms graphs implementation math *3500	0 / 0	10
	868	P1718F Burenka, an Array and Queries data structures math number theory *3300	0 / 0	10
	867	P1719A Chip Game games math *800	0 / 0	3
	866	P1719B Mathematical Circus constructive algorithms math *800	0 / 0	3
	864	P1720A Burenka Plays with Fractions math number theory *900	0 / 0	3
	863	P1720B Interesting Sum brute force data structures greedy math sortings *800	0 / 0	3
	859	P1720E Misha and Paintings constructive algorithms data structures greedy implementation math *2700	0 / 0	10
	845	P1725A Accumulation of Dominoes math *800	0 / 0	3
	843	P1725C Circular Mirror binary search combinatorics geometry math two pointers *2000	0 / 0	7
	842	P1725D Deducing Sortability binary search bitmasks math *2900	0 / 0	10
	841	P1725E Electrical Efficiency combinatorics data structures dp math number theory trees *2500	0 / 0	9
	839	P1725G Garage binary search geometry math *1500	0 / 0	5
	838	P1725H Hot Black Hot White constructive algorithms math *1800	0 / 0	6
	832	P1726A Mainak and Array greedy math *900	0 / 0	3
	831	P1726B Mainak and Interesting Sequence bitmasks constructive algorithms math *1100	0 / 0	3
	828	P1726E Almost Perfect combinatorics fft math *2400	0 / 0	9
	825	P1726H Mainak and the Bleeding Polygon binary search geometry implementation math *3500	0 / 0	10
	820	P1728E Red-Black Pepper brute force data structures greedy math number theory *2300	0 / 0	8
	818	P1728G Illumination binary search bitmasks brute force combinatorics dp math two pointers *2700	0 / 0	10
	817	P1729A Two Elevators math *800	0 / 0	3
	812	P1729F Kirei and the Linear Function hashing math *1900	0 / 0	6
	809	P1730B Meeting on the Line binary search geometry greedy implementation math ternary search *1600	0 / 0	5
	808	P1730C Minimum Notation data structures greedy math sortings *1200	0 / 0	4
	804	P1731A Joey Takes Money greedy math *800	0 / 0	3
	803	P1731B Kill Demodogs greedy math *1100	0 / 0	3
	802	P1731C Even Subarrays bitmasks brute force hashing math number theory *1700	0 / 0	5
	800	P1731E Graph Cost dp greedy math number theory *2000	0 / 0	7
	799	P1731F Function Sum brute force combinatorics dp fft math *2500	0 / 0	9
	798	P1732A Bestie brute force combinatorics constructive algorithms implementation math number theory *1000	0 / 0	3
	792	P1732E Location data structures dp math number theory *2800	0 / 0	10
	790	P1733B Rule of League constructive algorithms math *900	0 / 0	3
	788	P1733D1 Zero-One (Easy Version) constructive algorithms greedy math *1400	0 / 0	4
	786	P1733E Conveyor constructive algorithms dp math *2700	0 / 0	10
	783	P1734C Removing Smallest Multiples greedy math *1200	0 / 0	4
	780	P1734F Zeros and Ones bitmasks divide and conquer dp math *2500	0 / 0	9
	779	P1735A Working Week constructive algorithms greedy math *800	0 / 0	3
	778	P1735B Tea with Tangerines greedy math *900	0 / 0	3
	776	P1735D Meta-set brute force combinatorics data structures hashing math *1700	0 / 0	5
	772	P1736B Playing with GCD math number theory *1200	0 / 0	4
	766	P1737B Ela's Fitness and the Luxury Number binary search implementation math *1300	0 / 0	4
	764	P1737C Ela and Crickets constructive algorithms games implementation math *1500	0 / 0	5
	761	P1737E Ela Goes Hiking combinatorics dp math probabilities *2500	0 / 0	9
	760	P1737F Ela and Prime GCD constructive algorithms math number theory *3300	0 / 0	10
	757	P1738B Prefix Sum Addicts constructive algorithms greedy math sortings *1200	0 / 0	4
	756	P1738C Even Number Addicts dp games greedy math *1500	0 / 0	5
	754	P1738E Balance Addicts combinatorics dp math two pointers *2300	0 / 0	8
	750	P1738G Anti-Increasing Addicts constructive algorithms dp greedy math *2900	0 / 0	10
	747	P1739B Array Recovery constructive algorithms greedy math *1100	0 / 0	3

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