data structures - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	9960	P1849C Binary String Copying binary search brute force data structures hashing strings	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)
	9957	P1849F XOR Partition binary search bitmasks data structures divide and conquer greedy trees	0 / 0	(None)
	9874	P1850G The Morning Star data structures geometry implementation math sortings	0 / 0	(None)
	9950	P1851G Vlad and the Mountains binary search data structures dsu graphs implementation sortings trees two pointers	0 / 0	(None)
	9947	P1852C Ina of the Mountain data structures dp greedy math *2400	0 / 0	9
	9945	P1852E Rivalries constructive algorithms data structures greedy *3400	0 / 0	10
	9944	P1852F Panda Meetups data structures dp flows *3500	0 / 0	10
	9992	P1856C To Become Max binary search brute force data structures dp *1600	0 / 0	5
	9983	P1857F Sum and Product binary search data structures math *1600	0 / 0	5
	9978	P1858D Trees and Segments brute force data structures dp greedy two pointers *2200	0 / 0	8
	9977	P1858E1 Rollbacks (Easy Version) brute force data structures dfs and similar trees *2500	0 / 0	9
	9976	P1858E2 Rollbacks (Hard Version) data structures interactive trees *2600	0 / 0	10
	9972	P1859D Andrey and Escape from Capygrad binary search data structures dp dsu greedy sortings *1800	0 / 0	6
	9970	P1859F Teleportation in Byteland data structures dfs and similar divide and conquer graphs shortest paths trees *3200	0 / 0	10
	9967	P1860C Game on Permutation data structures dp games greedy	0 / 0	(None)
	9965	P1860E Fast Travel Text Editor data structures dfs and similar graphs shortest paths	0 / 0	(None)
	9964	P1860F Evaluate RBS data structures geometry implementation math sortings	0 / 0	(None)
	10045	P1861C Queries for the Array data structures dfs and similar implementation strings trees	9 / 31	7
	10039	P1862C Flower City Fence binary search data structures implementation sortings	0 / 0	(None)
	10037	P1862E Kolya and Movie Theatre constructive algorithms data structures greedy	0 / 0	(None)
	10035	P1862G The Great Equalizer binary search data structures math sortings	0 / 0	(None)
	10022	P1864D Matrix Cascade brute force constructive algorithms data structures dp greedy math	0 / 0	(None)
	10021	P1864E Guess Game bitmasks data structures games math probabilities sortings strings trees	0 / 0	(None)
	10020	P1864F Exotic Queries data structures implementation sortings	0 / 0	(None)
	10011	P1866F Freak Joker Process binary search data structures sortings	0 / 0	(None)
	10010	P1866G Grouped Carriages binary search data structures greedy	0 / 0	(None)
	10068	P1867C Salyg1n and the MEX Game constructive algorithms data structures games greedy interactive	0 / 0	(None)
	10057	P1868F LIS? data structures greedy implementation	0 / 0	(None)
	10128	P1870C Colorful Table binary search data structures dp implementation math two pointers *1300	0 / 0	4
	10124	P1870G MEXanization data structures *3300	0 / 0	10
	10123	P1870H Standard Graph Problem data structures graphs greedy trees *3500	0 / 0	10
	10050	P1872E Data Structures Fan binary search bitmasks data structures dp	0 / 0	(None)
	10100	P1876E Ball-Stackable constructive algorithms data structures dp trees	0 / 0	(None)
	10098	P1876G Clubstep binary search brute force data structures greedy trees	0 / 0	(None)
	10092	P1878D Reverse Madness data structures greedy	0 / 0	(None)
	10091	P1878E Iva & Pav binary search bitmasks data structures greedy	0 / 0	(None)
	10089	P1878G wxhtzdy ORO Tree binary search bitmasks brute force data structures dfs and similar implementation trees	0 / 0	(None)
	10083	P1879F Last Man Standing brute force data structures number theory *2800	0 / 0	10
	10164	P1881G Anya and the Mysterious String binary search data structures	0 / 0	(None)
	10160	P1883D In Love data structures greedy	0 / 0	(None)
	10158	P1883F You Are So Beautiful data structures	0 / 0	(None)
	10153	P1884C Medium Design brute force data structures dp greedy sortings	0 / 0	(None)
	10071	P1886F Diamond Theft data structures greedy	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)
	10143	P1889C1 Doremy's Drying Plan (Easy Version) brute force data structures dp greedy implementation sortings	0 / 0	(None)
	10142	P1889C2 Doremy's Drying Plan (Hard Version) data structures dp hashing	0 / 0	(None)
	10139	P1889F Doremy's Average Tree data structures dp greedy trees	0 / 0	(None)
	10131	P1891F A Growing Tree data structures dfs and similar trees	0 / 0	(None)
	10181	P1893D Colorful Constructive constructive algorithms data structures greedy *2600	0 / 0	10
	10174	P1895D XOR Construction bitmasks constructive algorithms data structures math string suffix structures trees *1900	0 / 0	6
	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
	10171	P1895G Two Characters, Two Colors binary search data structures dp flows greedy *3100	0 / 0	10
	10215	P1896D Ones and Twos binary search data structures divide and conquer math two pointers *1700	0 / 0	5
	10214	P1896E Permutation Sorting data structures sortings *2100	0 / 0	7
	10205	P1898E Sofia and Strings data structures greedy sortings strings two pointers *2200	0 / 0	8
	10197	P1899G Unusual Entertainment data structures dfs and similar dsu shortest paths sortings trees two pointers *1900	0 / 0	6
	10191	P1900F Local Deletions binary search data structures implementation *2800	0 / 0	10
	10314	P1909C Heavy Intervals constructive algorithms data structures dsu greedy math sortings *1400	0 / 0	4
	10308	P1909H Parallel Swaps Sort constructive algorithms data structures *3500	0 / 0	10
	10299	P1910H Sum of Digits of Sums special problem binary search data structures 2400	0 / 0	9
	10296	P1912A Accumulator Apex data structures implementation sortings *1800	0 / 0	6
	10236	P1913D Array Collapse data structures divide and conquer dp trees *2100	0 / 0	7
	10234	P1913F Palindromic Problem binary search data structures hashing string suffix structures strings *2800	0 / 0	10
	10225	P1914G2 Light Bulbs (Hard Version) combinatorics data structures dfs and similar dp graphs hashing *2300	0 / 0	8
	10289	P1915E Romantic Glasses data structures greedy math *1300	0 / 0	4
	10288	P1915F Greetings data structures divide and conquer sortings *1500	0 / 0	5
	10282	P1916E Happy Life in University data structures dfs and similar greedy trees *2300	0 / 0	8
	10223	P1917B Erase First or Second Letter brute force combinatorics data structures dp strings *1100	0 / 0	3
	10221	P1917D Yet Another Inversions Problem combinatorics data structures divide and conquer math *2300	0 / 0	8
	10346	P1918B Minimize Inversions constructive algorithms data structures greedy implementation sortings *900	0 / 0	3
	10344	P1918D Blocking Elements binary search data structures dp implementation two pointers *1900	0 / 0	6
	10275	P1919C Grouping Increases data structures dp greedy *1400	0 / 0	4
	10274	P1919D 01 Tree constructive algorithms data structures dsu greedy sortings trees *2100	0 / 0	7
	10272	P1919F1 Wine Factory (Easy Version) data structures greedy *2300	0 / 0	8
	10271	P1919F2 Wine Factory (Hard Version) data structures dp flows greedy matrices *2800	0 / 0	10
	10263	P1920F1 Smooth Sailing (Easy Version) binary search brute force data structures dfs and similar dsu graphs shortest paths *2500	0 / 0	9
	10262	P1920F2 Smooth Sailing (Hard Version) binary search data structures dsu geometry graphs trees *3000	0 / 0	10
	10258	P1921D Very Different Array data structures greedy sortings two pointers *1100	0 / 0	3
	10256	P1921F Sum of Progression brute force data structures dp implementation math *1900	0 / 0	6
	10255	P1921G Mischievous Shooter brute force data structures divide and conquer dp implementation *2200	0 / 0	8
	10251	P1922D Berserk Monsters brute force data structures dsu implementation *1900	0 / 0	6
	10339	P1924B Space Harbour data structures implementation math sortings *2100	0 / 0	7
	10328	P1927D Find the Different Ones! binary search brute force data structures dp dsu greedy two pointers	0 / 0	(None)
	10326	P1927F Microcycle data structures dfs and similar dsu graphs greedy implementation sortings trees	0 / 0	(None)
	10325	P1927G Paint Charges data structures dp greedy math	0 / 0	(None)
	10321	P1928D Lonely Mountain Dungeons binary search brute force data structures greedy math ternary search	0 / 0	(None)
	10319	P1928F Digital Patterns brute force combinatorics data structures implementation math	0 / 0	(None)
	10434	P1929F Sasha and the Wedding Binary Search Tree brute force combinatorics data structures dfs and similar math trees *2300	0 / 0	8
	10431	P1930C Lexicographically Largest binary search constructive algorithms data structures greedy sortings *1700	0 / 0	5
	10426	P1930G Prefix Max Set Counting data structures dp trees *3100	0 / 0	10
	10414	P1932C LR-remainders brute force data structures implementation math two pointers *1400	0 / 0	4
	10411	P1932F Feed Cats data structures dp sortings *1900	0 / 0	6
	10394	P1935C Messenger in MAC binary search brute force constructive algorithms data structures dp greedy sortings *1800	0 / 0	6
	10392	P1935E Distance Learning Courses in MAC bitmasks brute force data structures greedy math *2400	0 / 0	9
	10391	P1935F Andrey's Tree binary search constructive algorithms data structures dfs and similar dsu greedy implementation trees *2800	0 / 0	10
	10389	P1936B Pinball binary search data structures implementation math two pointers *2000	0 / 0	7
	10388	P1936C Pokémon Arena data structures graphs greedy implementation shortest paths sortings *2400	0 / 0	9
	10387	P1936D Bitwise Paradox binary search bitmasks data structures greedy two pointers *3100	0 / 0	10

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