constructive algorithms - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	10070	P1867A green_gold_dog, array and permutation constructive algorithms sortings	0 / 0	(None)
	10069	P1867B XOR Palindromes bitmasks constructive algorithms strings	0 / 0	(None)
	10068	P1867C Salyg1n and the MEX Game constructive algorithms data structures games greedy interactive	0 / 0	(None)
	10067	P1867D Cyclic Operations brute force constructive algorithms dfs and similar graphs greedy implementation	0 / 0	(None)
	10066	P1867E1 Salyg1n and Array (simple version) constructive algorithms interactive math	0 / 0	(None)
	10065	P1867E2 Salyg1n and Array (hard version) constructive algorithms interactive math	0 / 0	(None)
	10064	P1867F Most Different Tree brute force constructive algorithms dfs and similar greedy hashing	0 / 0	(None)
	10063	P1868A Fill in the Matrix constructive algorithms implementation	0 / 0	(None)
	10062	P1868B1 Candy Party (Easy Version) bitmasks constructive algorithms graphs greedy implementation math	0 / 0	(None)
	10061	P1868B2 Candy Party (Hard Version) bitmasks constructive algorithms dp graphs greedy implementation math	0 / 0	(None)
	10059	P1868D Flower-like Pseudotree constructive algorithms graphs greedy implementation trees	0 / 0	(None)
	10058	P1868E Min-Sum-Max constructive algorithms dp greedy	0 / 0	(None)
	10056	P1869A Make It Zero constructive algorithms	0 / 0	(None)
	10130	P1870A MEXanized Array constructive algorithms greedy math *800	0 / 0	3
	10116	P1873G ABBC or BACB constructive algorithms greedy *1500	0 / 0	5
	10102	P1876C Autosynthesis constructive algorithms dfs and similar dp graphs trees	0 / 0	(None)
	10100	P1876E Ball-Stackable constructive algorithms data structures dp trees	0 / 0	(None)
	10094	P1878B Aleksa and Stack constructive algorithms math	0 / 0	(None)
	10087	P1879B Chips on the Board constructive algorithms greedy *900	0 / 0	3
	10084	P1879E Interactive Game with Coloring brute force constructive algorithms dfs and similar graphs implementation interactive trees *2400	0 / 0	9
	10081	P1882B Sets and Union bitmasks brute force constructive algorithms greedy	0 / 0	(None)
	10078	P1882E1 Two Permutations (Easy Version) brute force constructive algorithms greedy number theory	0 / 0	(None)
	10077	P1882E2 Two Permutations (Hard Version) constructive algorithms	0 / 0	(None)
	10076	P1886A Sum of Three brute force constructive algorithms math	0 / 0	(None)
	10074	P1886C Decreasing String constructive algorithms strings	0 / 0	(None)
	10149	P1887C Minimum Array binary search brute force constructive algorithms data structures greedy hashing two pointers	0 / 0	(None)
	10147	P1887E Good Colorings binary search constructive algorithms graphs interactive	0 / 0	(None)
	10146	P1887F Minimum Segments constructive algorithms	0 / 0	(None)
	10145	P1889A Qingshan Loves Strings 2 constructive algorithms greedy implementation	0 / 0	(None)
	10144	P1889B Doremy's Connecting Plan constructive algorithms greedy math sortings	0 / 0	(None)
	10138	P1890A Doremy's Paint 3 constructive algorithms	0 / 0	(None)
	10136	P1891A Sorting with Twos constructive algorithms sortings	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
	10181	P1893D Colorful Constructive constructive algorithms data structures greedy *2600	0 / 0	10
	10178	P1894B Two Out of Three constructive algorithms *1000	0 / 0	3
	10174	P1895D XOR Construction bitmasks constructive algorithms data structures math string suffix structures trees *1900	0 / 0	6
	10216	P1896C Matching Arrays binary search constructive algorithms greedy sortings *1400	0 / 0	4
	10213	P1896F Bracket Xoring bitmasks constructive algorithms graph matchings implementation *2600	0 / 0	10
	10212	P1896G Pepe Racing constructive algorithms implementation interactive sortings *3200	0 / 0	10
	10207	P1898C Colorful Grid constructive algorithms *1700	0 / 0	5
	10198	P1899F Alex's whims constructive algorithms graphs greedy shortest paths trees *1600	0 / 0	5
	10196	P1900A Cover in Water constructive algorithms greedy implementation strings *800	0 / 0	3
	10188	P1901C Add, Divide and Floor constructive algorithms greedy math *1400	0 / 0	4
	10317	P1907G Lights brute force constructive algorithms dfs and similar graphs greedy implementation *2200	0 / 0	8
	10315	P1909B Make Almost Equal With Mod bitmasks constructive algorithms math number theory *1200	0 / 0	4
	10314	P1909C Heavy Intervals constructive algorithms data structures dsu greedy math sortings *1400	0 / 0	4
	10312	P1909E Multiple Lamps bitmasks brute force constructive algorithms math number theory *2400	0 / 0	9
	10308	P1909H Parallel Swaps Sort constructive algorithms data structures *3500	0 / 0	10
	10247	P1912E Evaluate It and Back Again constructive algorithms implementation math *2200	0 / 0	8
	10232	P1914B Preparing for the Contest constructive algorithms math *800	0 / 0	3
	10286	P1916A 2023 constructive algorithms implementation math number theory *800	0 / 0	3
	10285	P1916B Two Divisors constructive algorithms math number theory *900	0 / 0	3
	10284	P1916C Training Before the Olympiad constructive algorithms games greedy implementation math *1200	0 / 0	4
	10283	P1916D Mathematical Problem brute force constructive algorithms geometry math *1700	0 / 0	5
	10281	P1916F Group Division constructive algorithms dfs and similar graphs greedy *2900	0 / 0	10
	10224	P1917A Least Product constructive algorithms math *800	0 / 0	3
	10220	P1917E Construct Matrix constructive algorithms implementation math *2500	0 / 0	9
	10219	P1917F Construct Tree bitmasks constructive algorithms dp trees *2500	0 / 0	9
	10347	P1918A Brick Wall constructive algorithms greedy implementation math *800	0 / 0	3
	10346	P1918B Minimize Inversions constructive algorithms data structures greedy implementation sortings *900	0 / 0	3
	10343	P1918E ace5 and Task Order constructive algorithms divide and conquer implementation interactive probabilities sortings *2200	0 / 0	8
	10341	P1918G Permutation of Given constructive algorithms math *2700	0 / 0	10
	10274	P1919D 01 Tree constructive algorithms data structures dsu greedy sortings trees *2100	0 / 0	7
	10273	P1919E Counting Prefixes combinatorics constructive algorithms dp implementation math *2600	0 / 0	10
	10270	P1919G Tree LGM constructive algorithms divide and conquer games trees *3500	0 / 2	10
	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
	10250	P1922E Increasing Subsequences bitmasks constructive algorithms greedy math *1800	0 / 0	6
	10340	P1924A Did We Get Everything Covered? constructive algorithms dp greedy shortest paths strings *1500	0 / 0	5
	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
	10330	P1927B Following the String constructive algorithms greedy strings	0 / 0	(None)
	10327	P1927E Klever Permutation constructive algorithms math two pointers	0 / 0	(None)
	10324	P1928A Rectangle Cutting constructive algorithms geometry greedy math	0 / 0	(None)
	10320	P1928E Modular Sequence constructive algorithms dp greedy implementation math number theory	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
	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
	10425	P1930H Interactive Mex Tree constructive algorithms dfs and similar interactive trees *3300	0 / 0	10
	10406	P1933D Turtle Tenacity: Continual Mods constructive algorithms greedy math number theory sortings *1200	0 / 0	4
	10403	P1933G Turtle Magic: Royal Turtle Shell Pattern bitmasks brute force combinatorics constructive algorithms dfs and similar math *2300	0 / 0	8
	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
	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
	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
	10355	P1941G Rudolf and Subway constructive algorithms dfs and similar graphs shortest paths *2000	0 / 0	7
	10530	P1942A Farmer John's Challenge constructive algorithms math	0 / 0	(None)
	10529	P1942B Bessie and MEX constructive algorithms math	0 / 0	(None)
	10472	P1943C Tree Compass constructive algorithms dfs and similar greedy trees *2300	0 / 0	8
	10465	P1944B Equal XOR bitmasks constructive algorithms *1100	0 / 0	3
	10460	P1945E Binary Search binary search constructive algorithms greedy *1700	0 / 0	5
	10458	P1945G Cook and Porridge binary search constructive algorithms data structures implementation *2500	0 / 0	9
	10453	P1946D Birthday Gift bitmasks brute force constructive algorithms dsu greedy implementation *1900	0 / 0	6

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