greedy - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	177	P1800B Count the Number of Pairs greedy strings *1000	0 / 0	3
	175	P1800C1 Powering the Hero (easy version) data structures greedy *1000	0 / 0	3
	174	P1800C2 Powering the Hero (hard version) data structures greedy *1100	0 / 0	3
	172	P1800D Remove Two Letters data structures greedy hashing strings *1200	0 / 0	4
	171	P1800E1 Unforgivable Curse (easy version) brute force constructive algorithms dsu graphs greedy strings *1400	0 / 0	4
	169	P1800E2 Unforgivable Curse (hard version) brute force constructive algorithms dfs and similar dsu graphs greedy strings *1500	0 / 0	5
	163	P1801B Buying gifts data structures greedy sortings *1800	0 / 0	6
	162	P1801C Music Festival binary search data structures dp greedy sortings *1900	0 / 0	6
	160	P1801D The way home binary search data structures dp graphs greedy shortest paths sortings *2100	0 / 0	7
	154	P1802A Likes greedy implementation *800	1 / 1	3
	152	P1802B Settlement of Guinea Pigs greedy implementation math *1000	1 / 1	3
	151	P1804A Lame King greedy math *800	0 / 0	3
	149	P1804B Vaccination greedy implementation *1000	0 / 0	3
	148	P1804C Pull Your Luck brute force greedy math number theory *1500	0 / 0	5
	147	P1804D Accommodation brute force dp greedy implementation *2000	0 / 0	7
	140	P1805B The String Has a Target greedy strings *800	0 / 0	3
	138	P1805D A Wide, Wide Graph dfs and similar dp graphs greedy trees *1800	0 / 0	6
	135	P1805F2 Survival of the Weakest (hard version) greedy math sortings two pointers *3100	0 / 0	10
	134	P1806A Walking Master geometry greedy math *800	2 / 2	3
	133	P1806B Mex Master constructive algorithms greedy *900	2 / 2	3
	127	P1806F1 GCD Master (easy version) greedy math number theory sortings *2900	0 / 0	10
	125	P1806F2 GCD Master (hard version) greedy math sortings *2900	0 / 0	10
	123	P1807B Grab the Candies greedy *800	0 / 0	3
	121	P1807C Find and Replace greedy implementation strings *800	0 / 0	3
	114	P1807G1 Subsequence Addition (Easy Version) brute force data structures dp greedy implementation sortings *1100	0 / 0	3
	112	P1807G2 Subsequence Addition (Hard Version) bitmasks dp greedy implementation sortings *1100	0 / 0	3
	108	P1808C Unlucky Numbers brute force dp greedy implementation *1900	0 / 0	6
	96	P1809B Points on Plane binary search greedy math *1000	0 / 0	3
	94	P1809C Sum on Subarrays constructive algorithms greedy math *1500	0 / 0	5
	92	P1809D Binary String Sorting constructive algorithms greedy *1800	0 / 0	6
	86	P1809F Traveling in Berland binary search data structures graphs greedy implementation *2500	0 / 0	9
	82	P1810A Beautiful Sequence brute force greedy *800	0 / 0	3
	81	P1810C Make It Permutation brute force greedy sortings *1300	0 / 0	4
	77	P1810E Monsters brute force data structures dfs and similar dsu graphs greedy *2100	0 / 0	7
	68	P1811A Insert Digit greedy math strings *800	0 / 0	3
	65	P1811C Restore the Array constructive algorithms greedy *1100	0 / 0	3
	54	P1814C Search in Parallel constructive algorithms greedy sortings *1500	0 / 0	5
	49	P1815A Ian and Array Sorting greedy math *1300	0 / 0	4
	45	P1815C Between constructive algorithms dfs and similar graphs greedy *2200	0 / 0	8
	38	P1816B Grid Reconstruction constructive algorithms greedy *1000	0 / 0	3
	9802	P1817A Almost Increasing Subsequence binary search data structures greedy *1500	0 / 0	5
	9798	P1817E Half-sum brute force divide and conquer greedy *3400	0 / 0	10
	9796	P1818A Politics greedy implementation *800	0 / 0	3
	36	P1819A Constructive Problem brute force greedy *1300	0 / 0	4
	35	P1819B The Butcher geometry greedy implementation sortings two pointers *1900	0 / 0	6
	22	P1821B Sort the Subarray brute force greedy	12 / 41	6
	17	P1821D Black Cells binary search brute force greedy math	3 / 23	9
	16	P1821E Rearrange Brackets brute force dp greedy sortings strings	1 / 1	10
	10	P1822B Karina and Array greedy math sortings	0 / 0	(None)
	5	P1822E Making Anti-Palindromes greedy math strings	0 / 0	(None)
	3636	P1823C Strongly Composite greedy math number theory	0 / 0	(None)
	9794	P1824A LuoTianyi and the Show greedy implementation	0 / 0	(None)
	9791	P1824C LuoTianyi and XOR-Tree bitmasks data structures dfs and similar dp dsu greedy trees	0 / 0	(None)
	9788	P1825A LuoTianyi and the Palindrome String brute force greedy implementation strings	1 / 1	10
	9787	P1825B LuoTianyi and the Table brute force greedy implementation math	0 / 1	10
	9786	P1826A Trust Nobody brute force greedy implementation sortings	0 / 0	(None)
	9784	P1826C Dreaming of Freedom greedy math number theory	0 / 0	(None)
	9783	P1826D Running Miles brute force dp greedy	0 / 0	(None)
	9822	P1827B1 Range Sorting (Easy Version) binary search dp dsu greedy trees two pointers *2000	0 / 0	7
	9821	P1827B2 Range Sorting (Hard Version) binary search data structures dp greedy *2400	0 / 0	9
	9819	P1827D Two Centroids data structures dfs and similar greedy trees *2800	0 / 0	10
	9818	P1827E Bus Routes binary search constructive algorithms dfs and similar greedy trees *3400	0 / 0	10
	9817	P1827F Copium Permutation constructive algorithms data structures greedy *3500	0 / 0	10
	9775	P1829C Mr bitmasks greedy implementation	0 / 0	(None)
	9840	P1831B Array merging constructive algorithms greedy	0 / 0	(None)
	9811	P1832C Contrast Value greedy implementation *1200	0 / 0	4
	9809	P1832D1 Red-Blue Operations (Easy Version) binary search greedy implementation math *2100	0 / 0	7
	9808	P1832D2 Red-Blue Operations (Hard Version) binary search constructive algorithms greedy implementation math *2400	0 / 0	9
	9838	P1833B Restore the Weather greedy sortings *900	0 / 0	3
	9837	P1833C Vlad Building Beautiful Array greedy math *800	0 / 0	3
	9836	P1833D Flipper brute force constructive algorithms greedy *1400	0 / 0	4
	9833	P1833G Ksyusha and Chinchilla constructive algorithms dfs and similar dp dsu greedy implementation trees *1800	0 / 0	6
	9938	P1835B Lottery binary search brute force greedy math two pointers *2500	0 / 0	9
	9932	P1836B Astrophysicists greedy math *1100	0 / 0	3
	9831	P1837B Comparison String greedy	0 / 0	(None)
	9830	P1837C Best Binary String constructive algorithms greedy	0 / 0	(None)
	9829	P1837D Bracket Coloring constructive algorithms greedy	0 / 0	(None)
	9826	P1837F Editorial for Two binary search data structures greedy implementation	0 / 0	(None)
	9869	P1838D Bracket Walk data structures greedy strings *2100	0 / 0	7
	9866	P1839A The Good Array greedy implementation math *800	0 / 0	3
	9865	P1839B Lamps greedy sortings *1100	0 / 0	3
	9862	P1839E Decreasing Game constructive algorithms dfs and similar dp greedy interactive *2400	0 / 0	9
	9858	P1840D Wooden Toy Festival binary search greedy sortings *1400	0 / 0	4
	9851	P1841C Ranom Numbers brute force dp greedy math strings	0 / 8	10
	9850	P1841D Pairs of Segments data structures dp greedy sortings two pointers	0 / 1	10
	9849	P1841E Fill the Matrix binary search data structures greedy math string suffix structures	0 / 0	(None)
	9930	P1842B Tenzing and Books bitmasks greedy math *1100	0 / 0	3
	9928	P1842D Tenzing and His Animal Friends constructive algorithms graphs greedy *1900	0 / 0	6
	9927	P1842E Tenzing and Triangle data structures dp geometry greedy math *2300	0 / 0	8
	9926	P1842F Tenzing and Tree dfs and similar greedy shortest paths sortings trees *2500	0 / 0	9
	9923	P1842I Tenzing and Necklace divide and conquer dp greedy *3500	0 / 0	10
	9922	P1843A Sasha and Array Coloring greedy sortings two pointers *800	0 / 0	3
	9921	P1843B Long Long greedy math two pointers *800	0 / 0	3
	9917	P1843F1 Omsk Metro (simple version) data structures dfs and similar dp graphs greedy math trees *1800	0 / 0	6
	9913	P1844C Particles dp greedy implementation math *1300	0 / 0	4
	9912	P1844D Row Major constructive algorithms greedy math number theory strings *1400	0 / 0	4
	9910	P1844F1 Min Cost Permutation (Easy Version) brute force constructive algorithms greedy math *2600	0 / 0	10
	9909	P1844F2 Min Cost Permutation (Hard Version) binary search constructive algorithms data structures greedy math sortings *2800	0 / 0	10
	9904	P1845C Strong Password binary search dp greedy strings *1400	0 / 0	4
	9903	P1845D Rating System binary search brute force data structures dp dsu greedy math two pointers *1800	0 / 0	6

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