two pointers - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	818	P1728G Illumination binary search bitmasks brute force combinatorics dp math two pointers *2700	0 / 0	10
	814	P1729D Friends and the Restaurant greedy sortings two pointers *1200	0 / 0	4
	811	P1729G Cut Substrings combinatorics dp hashing strings two pointers *2100	0 / 0	7
	807	P1730D Prefixes and Suffixes constructive algorithms strings two pointers *2200	0 / 0	8
	801	P1731D Valiant's New Map binary search brute force data structures dp two pointers *1700	0 / 0	5
	796	P1732C1 Sheikh (Easy version) binary search bitmasks greedy two pointers *1800	0 / 0	6
	795	P1732C2 Sheikh (Hard Version) binary search bitmasks brute force greedy implementation two pointers *2100	0 / 0	7
	782	P1734D Slime Escape data structures dp greedy two pointers *1800	0 / 0	6
	771	P1736C1 Good Subarrays (Easy Version) binary search data structures schedules two pointers *1300	0 / 0	4
	770	P1736C2 Good Subarrays (Hard Version) binary search data structures dp two pointers *2400	0 / 0	9
	754	P1738E Balance Addicts combinatorics dp math two pointers *2300	0 / 0	8
	726	P1741C Minimize the Thickness brute force greedy math two pointers *1100	0 / 0	3
	686	P1744C Traffic Light binary search implementation two pointers *1000	0 / 0	3
	678	P1744F MEX vs MED math two pointers *2000	0 / 0	7
	675	P1746B Rebellion constructive algorithms greedy two pointers *800	0 / 0	3
	609	P1753F Minecraft Series brute force two pointers *3500	0 / 0	10
	597	P1758D Range = √Sum binary search brute force constructive algorithms math two pointers *1800	0 / 0	6
	572	P1760D Challenging Valleys implementation two pointers *1000	0 / 0	3
	559	P1761E Make It Connected binary search brute force constructive algorithms dsu graphs greedy matrices trees two pointers *2400	0 / 0	9
	511	P1765D Watch the Videos binary search constructive algorithms two pointers *1700	0 / 0	5
	482	P1766E Decomposition binary search brute force data structures divide and conquer dp two pointers *2300	0 / 0	8
	445	P1771B Hossam and Friends binary search constructive algorithms dp two pointers *1400	0 / 0	4
	440	P1771E Hossam and a Letter brute force dp implementation two pointers *2500	0 / 0	9
	416	P1774D Same Count One brute force constructive algorithms greedy implementation two pointers *1600	0 / 0	5
	385	P1776H Beppa and SwerChat two pointers *1300	0 / 0	4
	371	P1777C Quiz Master binary search math number theory sortings two pointers *1700	0 / 0	5
	330	P1781E Rectangle Shrinking binary search brute force data structures greedy implementation two pointers *2300	0 / 0	8
	292	P1787I Treasure Hunt data structures divide and conquer two pointers *3400	0 / 0	10
	286	P1788D Moving Dots binary search brute force combinatorics math two pointers *2000	0 / 0	7
	280	P1789B Serval and Inversion Magic brute force implementation strings two pointers *800	0 / 0	3
	265	P1791C Prepend and Append implementation two pointers *800	1 / 1	3
	254	P1792C Min Max Sort binary search brute force greedy math two pointers *1500	0 / 0	5
	244	P1793C Dora and Search constructive algorithms data structures two pointers *1200	0 / 0	4
	242	P1793D Moscow Gorillas binary search dp greedy implementation math two pointers *1800	0 / 0	6
	241	P1793E Velepin and Marketing binary search data structures dp greedy sortings two pointers *2600	0 / 0	10
	234	P1794C Scoring Subsequences binary search greedy math two pointers *1300	0 / 0	4
	215	P1796D Maximum Subarray data structures dp greedy two pointers *2000	0 / 0	7
	204	P1797E Li Hua and Array brute force data structures dsu math number theory two pointers *2300	0 / 0	8
	137	P1805E There Should Be a Lot of Maximums brute force data structures dfs and similar dp trees two pointers *2300	0 / 0	8
	135	P1805F2 Survival of the Weakest (hard version) greedy math sortings two pointers *3100	0 / 0	10
	106	P1808D Petya, Petya, Petr, and Palindromes binary search brute force data structures two pointers *2100	0 / 0	7
	60	P1811G2 Vlad and the Nice Paths (hard version) binary search combinatorics data structures dp math two pointers *2200	0 / 0	8
	53	P1814D Balancing Weapons binary search brute force data structures math two pointers *2500	0 / 0	9
	35	P1819B The Butcher geometry greedy implementation sortings two pointers *1900	0 / 0	6
	32	P1819D Misha and Apples brute force data structures dp two pointers *2800	0 / 0	10
	26	P1820B JoJo's Incredible Adventures math strings two pointers *1100	2 / 3	3
	9823	P1827A Counting Orders combinatorics math sortings two pointers *1100	0 / 0	3
	9822	P1827B1 Range Sorting (Easy Version) binary search dp dsu greedy trees two pointers *2000	0 / 0	7
	9813	P1832B Maximum Sum brute force sortings two pointers *1100	0 / 0	3
	9834	P1833F Ira and Flamenco combinatorics constructive algorithms data structures implementation math sortings two pointers *1700	0 / 0	5
	9938	P1835B Lottery binary search brute force greedy math two pointers *2500	0 / 0	9
	9861	P1840A Cipher Shifer implementation strings two pointers *800	0 / 0	3
	9859	P1840C Ski Resort combinatorics math two pointers *1000	0 / 0	3
	9850	P1841D Pairs of Segments data structures dp greedy sortings two pointers	0 / 1	10
	9848	P1841F Monocarp and a Strategic Game dp geometry sortings two pointers	0 / 0	(None)
	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
	9918	P1843E Tracking Segments binary search brute force data structures two pointers *1600	0 / 0	5
	9903	P1845D Rating System binary search brute force data structures dp dsu greedy math two pointers *1800	0 / 0	6
	9891	P1847B Hamon Odyssey bitmasks greedy two pointers *1000	0 / 0	3
	9959	P1849D Array Painting brute force constructive algorithms dp greedy implementation two pointers	0 / 0	(None)
	9958	P1849E Max to the Right of Min binary search data structures divide and conquer dp dsu two pointers	0 / 0	(None)
	9955	P1851B Parity Sort greedy sortings two pointers	0 / 0	(None)
	9950	P1851G Vlad and the Mountains binary search data structures dsu graphs implementation sortings trees two pointers	0 / 0	(None)
	9948	P1852B Imbalanced Arrays constructive algorithms graphs greedy math sortings two pointers *1800	0 / 0	6
	9978	P1858D Trees and Segments brute force data structures dp greedy two pointers *2200	0 / 0	8
	10030	P1863E Speedrun brute force dfs and similar dp graphs greedy math sortings two pointers	0 / 0	(None)
	10008	P1866I Imagination Castle dp games two pointers	0 / 0	(None)
	10128	P1870C Colorful Table binary search data structures dp implementation math two pointers *1300	0 / 0	4
	10119	P1873D 1D Eraser greedy implementation two pointers *800	0 / 0	3
	10117	P1873F Money Trees binary search greedy math two pointers *1300	0 / 0	4
	10101	P1876D Lexichromatography combinatorics dfs and similar dsu graphs two pointers	0 / 0	(None)
	10157	P1883G1 Dances (Easy version) binary search greedy two pointers	0 / 0	(None)
	10156	P1883G2 Dances (Hard Version) binary search greedy sortings two pointers	0 / 0	(None)
	10154	P1884B Haunted House binary search greedy math two pointers	0 / 0	(None)
	10072	P1886E I Wanna be the Team Leader bitmasks divide and conquer dp two pointers	0 / 0	(None)
	10149	P1887C Minimum Array binary search brute force constructive algorithms data structures greedy hashing two pointers	0 / 0	(None)
	10148	P1887D Split binary search data structures divide and conquer dsu math trees two pointers	0 / 0	(None)
	10134	P1891C Smilo and Monsters binary search constructive algorithms greedy sortings two pointers	0 / 0	(None)
	10183	P1893B Neutral Tonality constructive algorithms greedy sortings two pointers *1700	0 / 0	5
	10173	P1895E Infinite Card Game binary search brute force data structures dfs and similar dp dsu games graphs greedy sortings two pointers *2300	0 / 0	8
	10217	P1896B AB Flipping greedy strings two pointers *900	0 / 0	3
	10215	P1896D Ones and Twos binary search data structures divide and conquer math two pointers *1700	0 / 0	5
	10205	P1898E Sofia and Strings data structures greedy sortings strings two pointers *2200	0 / 0	8
	10201	P1899C Yarik and Array dp greedy two pointers *1100	0 / 0	3
	10197	P1899G Unusual Entertainment data structures dfs and similar dsu shortest paths sortings trees two pointers *1900	0 / 0	6
	10185	P1901F Landscaping binary search geometry two pointers *2900	0 / 0	10
	10344	P1918D Blocking Elements binary search data structures dp implementation two pointers *1900	0 / 0	6
	10258	P1921D Very Different Array data structures greedy sortings two pointers *1100	0 / 0	3
	10328	P1927D Find the Different Ones! binary search brute force data structures dp dsu greedy two pointers	0 / 0	(None)
	10327	P1927E Klever Permutation constructive algorithms math two pointers	0 / 0	(None)
	10323	P1928B Equalize binary search greedy sortings two pointers	0 / 0	(None)
	10414	P1932C LR-remainders brute force data structures implementation math two pointers *1400	0 / 0	4
	10389	P1936B Pinball binary search data structures implementation math two pointers *2000	0 / 0	7
	10387	P1936D Bitwise Paradox binary search bitmasks data structures greedy two pointers *3100	0 / 0	10
	10357	P1941E Rudolf and k Bridges binary search data structures dp two pointers *1600	0 / 0	5
	10356	P1941F Rudolf and Imbalance binary search greedy sortings two pointers *1800	0 / 0	6
	10468	P1943E2 MEX Game 2 (Hard Version) binary search greedy two pointers *3300	0 / 0	10
	10351	P1948D Tandem Repeats? dp strings two pointers	1 / 3	10
	10441	P1949J Amanda the Amoeba graphs implementation trees two pointers	0 / 0	(None)

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