Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	10260	P1921B Arranging Cats greedy implementation *800	0 / 0	3
	10259	P1921C Sending Messages greedy math *900	0 / 0	3
	10258	P1921D Very Different Array data structures greedy sortings two pointers *1100	0 / 0	3
	10257	P1921E Eat the Chip brute force games greedy math *1600	0 / 0	5
	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
	10254	P1922A Tricky Template constructive algorithms implementation strings *800	0 / 0	3
	10253	P1922B Forming Triangles combinatorics constructive algorithms math sortings *1200	0 / 0	4
	10252	P1922C Closest Cities greedy *1300	0 / 0	4
	10251	P1922D Berserk Monsters brute force data structures dsu implementation *1900	0 / 0	6
	10250	P1922E Increasing Subsequences bitmasks constructive algorithms greedy math *1800	0 / 0	6
	10249	P1922F Replace on Segment dp *2500	0 / 1	9
	10340	P1924A Did We Get Everything Covered? constructive algorithms dp greedy shortest paths strings *1500	0 / 0	5
	10339	P1924B Space Harbour data structures implementation math sortings *2100	0 / 0	7
	10338	P1924C Fractal Origami geometry math matrices *2400	0 / 0	9
	10337	P1924D Balanced Subsequences combinatorics dp math *2700	0 / 0	10
	10336	P1924E Paper Cutting Again combinatorics probabilities *3100	0 / 0	10
	10335	P1924F Anti-Proxy Attendance constructive algorithms dp interactive ternary search *3500	0 / 0	10
	10334	P1925A We Got Everything Covered! constructive algorithms greedy strings *800	0 / 0	3
	10333	P1925B A Balanced Problemset? brute force greedy math number theory *1200	0 / 0	4
	10332	P1925D Good Trip combinatorics dp math probabilities *1900	0 / 0	6
	10331	P1927A Make it White greedy strings	0 / 0	(None)
	10330	P1927B Following the String constructive algorithms greedy strings	0 / 0	(None)
	10329	P1927C Choose the Different Ones! brute force greedy math	0 / 0	(None)
	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)
	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)
	10324	P1928A Rectangle Cutting constructive algorithms geometry greedy math	0 / 0	(None)
	10323	P1928B Equalize binary search greedy sortings two pointers	0 / 0	(None)
	10322	P1928C Physical Education Lesson brute force math number theory	0 / 0	(None)
	10321	P1928D Lonely Mountain Dungeons binary search brute force data structures greedy math ternary search	0 / 0	(None)
	10320	P1928E Modular Sequence constructive algorithms dp greedy implementation math number theory	0 / 0	(None)
	10319	P1928F Digital Patterns brute force combinatorics data structures implementation math	0 / 0	(None)
	10439	P1929A Sasha and the Beautiful Array constructive algorithms greedy math sortings *800	0 / 0	3
	10438	P1929B Sasha and the Drawing constructive algorithms greedy math *800	0 / 0	3
	10437	P1929C Sasha and the Casino binary search brute force constructive algorithms games greedy math *1400	0 / 0	4
	10436	P1929D Sasha and a Walk in the City combinatorics dp math trees *1900	0 / 0	6
	10435	P1929E Sasha and the Happy Tree Cutting bitmasks brute force dfs and similar dp graphs greedy math trees *2300	0 / 0	8
	10434	P1929F Sasha and the Wedding Binary Search Tree brute force combinatorics data structures dfs and similar math trees *2300	0 / 0	8
	10433	P1930A Maximise The Score greedy sortings *800	0 / 0	3
	10432	P1930B Permutation Printing brute force constructive algorithms math *1000	0 / 0	3
	10431	P1930C Lexicographically Largest binary search constructive algorithms data structures greedy sortings *1700	0 / 0	5
	10430	P1930D1 Sum over all Substrings (Easy Version) brute force dp greedy strings *1800	0 / 0	6
	10429	P1930D2 Sum over all Substrings (Hard Version) bitmasks divide and conquer dp dsu greedy implementation strings *2100	0 / 0	7
	10428	P1930E 2..3...4... combinatorics dp math *2400	0 / 0	9
	10427	P1930F Maximize the Difference bitmasks brute force dfs and similar *2700	0 / 0	10
	10426	P1930G Prefix Max Set Counting data structures dp trees *3100	0 / 0	10
	10425	P1930H Interactive Mex Tree constructive algorithms dfs and similar interactive trees *3300	0 / 0	10
	10424	P1930I Counting Is Fun combinatorics *3500	0 / 0	10
	10423	P1931A Recovering a Small String brute force strings *800	0 / 0	3
	10422	P1931B Make Equal greedy *800	0 / 0	3
	10421	P1931C Make Equal Again brute force greedy math *1000	0 / 0	3
	10420	P1931D Divisible Pairs combinatorics math number theory *1300	0 / 0	4
	10419	P1931E Anna and the Valentine's Day Gift games greedy math sortings *1400	0 / 0	4
	10418	P1931F Chat Screenshots combinatorics dfs and similar graphs *1700	0 / 0	5
	10417	P1931G One-Dimensional Puzzle combinatorics math number theory *2000	0 / 0	7
	10416	P1932A Thorns and Coins dp greedy implementation *800	0 / 0	3
	10415	P1932B Chaya Calendar number theory *1100	0 / 0	3
	10414	P1932C LR-remainders brute force data structures implementation math two pointers *1400	0 / 0	4
	10413	P1932D Card Game greedy implementation *1400	0 / 0	4
	10412	P1932E Final Countdown implementation math number theory *1600	0 / 0	5
	10411	P1932F Feed Cats data structures dp sortings *1900	0 / 0	6
	10410	P1932G Moving Platforms graphs math number theory shortest paths *2300	0 / 0	8
	10409	P1933A Turtle Puzzle: Rearrange and Negate greedy math sortings *800	0 / 0	3
	10408	P1933B Turtle Math: Fast Three Task implementation math number theory *800	0 / 0	3
	10407	P1933C Turtle Fingers: Count the Values of k brute force implementation math number theory *1100	0 / 0	3
	10406	P1933D Turtle Tenacity: Continual Mods constructive algorithms greedy math number theory sortings *1200	0 / 0	4
	10405	P1933E Turtle vs binary search implementation math ternary search *1500	0 / 0	5
	10404	P1933F Turtle Mission: Robot and the Earthquake dfs and similar dp graphs shortest paths *2100	0 / 0	7
	10403	P1933G Turtle Magic: Royal Turtle Shell Pattern bitmasks brute force combinatorics constructive algorithms dfs and similar math *2300	0 / 0	8
	10402	P1934A Too Min Too Max greedy math *800	0 / 0	3
	10401	P1934B Yet Another Coin Problem brute force dp greedy math *1200	0 / 0	4
	10400	P1934C Find a Mine binary search constructive algorithms geometry greedy interactive math *1700	0 / 0	5
	10399	P1934D1 XOR Break — Solo Version bitmasks constructive algorithms greedy *2100	0 / 0	7
	10398	P1934D2 XOR Break — Game Version bitmasks games greedy interactive *2400	0 / 0	9
	10397	P1934E Weird LCM Operations brute force constructive algorithms number theory *3000	0 / 0	10
	10396	P1935A Entertainment in MAC constructive algorithms strings *800	0 / 0	3
	10395	P1935B Informatics in MAC constructive algorithms *1200	0 / 0	4
	10394	P1935C Messenger in MAC binary search brute force constructive algorithms data structures dp greedy sortings *1800	0 / 0	6
	10393	P1935D Exam in MAC binary search combinatorics implementation math *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
	10390	P1936A Bitwise Operation Wizard bitmasks constructive algorithms greedy interactive math *1700	0 / 0	5
	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
	10386	P1936E Yet Yet Another Permutation Problem divide and conquer fft math *3400	0 / 0	10
	10385	P1936F Grand Finale: Circles binary search geometry *3300	0 / 0	10
	10384	P1937A Shuffle Party implementation math *800	0 / 0	3
	10383	P1937B Binary Path dp greedy implementation *1300	0 / 0	4
	10382	P1938A __NO_TITLE__	0 / 0	(None)
	10381	P1938B __NO_TITLE__	0 / 0	(None)
	10380	P1938C __NO_TITLE__	0 / 0	(None)
	10379	P1938D __NO_TITLE__	0 / 0	(None)
	10378	P1938E __NO_TITLE__	0 / 0	(None)
	10377	P1938F __NO_TITLE__	0 / 0	(None)
	10376	P1938G __NO_TITLE__	0 / 0	(None)
	10375	P1938H __NO_TITLE__	0 / 0	(None)
	10374	P1938I __NO_TITLE__	0 / 0	(None)

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