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Problemset

1,984 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
1968A	Maximize? brute force math number theory	800	39.9k
1968D	Permutation Game brute force dfs and similar games graphs greedy math	1300	17.7k
1968G2	Division + LCP (hard version) binary search brute force data structures dp hashing math string suffix structures strings	2200	2.6k
1967B1	Reverse Card (Easy Version) brute force math number theory	1400	16.4k
1967B2	Reverse Card (Hard Version) brute force math number theory	2200	5k
1967C	Fenwick Tree bitmasks brute force combinatorics data structures dp math trees	2300	2.3k
1967F	Next and Prev brute force data structures implementation	3200	104
1957D	A BIT of an Inequality bitmasks brute force dp math	1900	6k
1957E	Carousel of Combinations brute force combinatorics dp math number theory	2400	1.7k
1956A	Nene's Game binary search brute force data structures games greedy	800	24.5k
1956D	Nene and the Mex Operator bitmasks brute force constructive algorithms divide and conquer dp greedy implementation math	2000	4.9k
1956E1	Nene vs. Monsters (Easy Version) brute force implementation math	2500	1.7k
1956E2	Nene vs. Monsters (Hard Version) brute force greedy implementation math	2700	1.1k
1955E	Long Inversions brute force greedy implementation sortings	1700	10.8k
1955G	GCD on a grid brute force dfs and similar dp implementation math number theory	1900	6.1k
1955H	The Most Reckless Defense bitmasks brute force constructive algorithms dp flows graph matchings shortest paths	2300	1.6k
1952C	They Have Fooled *special brute force schedules	unrated	3.3k
1952F	Grid *special brute force	unrated	2k
1952J	Help, what does it mean to be "Based" *special brute force constructive algorithms expression parsing implementation sortings	unrated	910
1951E	No Palindromes brute force constructive algorithms divide and conquer greedy hashing implementation math strings	2000	4.6k
1950D	Product of Binary Decimals brute force dp implementation number theory	1100	26.7k
1950E	Nearly Shortest Repeating Substring brute force implementation number theory strings	1500	17.7k
1950F	0, 1, 2, Tree! bitmasks brute force greedy implementation trees	1700	11.5k
1949A	Grove brute force dfs and similar dp geometry probabilities	3300	223
1949B	Charming Meals binary search brute force greedy sortings	1500	5k
1949E	Damage per Second brute force math	2900	154
1948A	Special Characters brute force constructive algorithms	800	31.3k
1948B	Array Fix brute force dp greedy implementation	1100	26.5k
1948C	Arrow Path brute force constructive algorithms dfs and similar dp graphs shortest paths	1300	21.5k
1948D	Tandem Repeats? brute force strings two pointers	1700	12.8k
1948E	Clique Partition brute force constructive algorithms graphs greedy implementation	2100	3.6k
1948G	MST with Matching bitmasks brute force dsu graph matchings trees	3100	976
1946D	Birthday Gift bitmasks brute force constructive algorithms greedy implementation	1900	5.7k
1945C	Left and Right Houses brute force	1200	17.6k
1945H	GCD is Greater brute force data structures math number theory	2600	971
1943D1	Counting Is Fun (Easy Version) brute force combinatorics dp math	2400	2k
1943E1	MEX Game 2 (Easy Version) binary search brute force greedy	2900	551
1942F	Farmer John's Favorite Function brute force data structures implementation math	2700	1k
1941A	Rudolf and the Ticket brute force math	800	48.2k
1941B	Rudolf and 121 brute force dp greedy math	1000	35.3k
1935C	Messenger in MAC binary search brute force constructive algorithms data structures dp greedy sortings	1800	9.9k
1935E	Distance Learning Courses in MAC bitmasks brute force data structures greedy math	2400	1.7k
1934B	Yet Another Coin Problem brute force dp greedy math	1200	22.4k
1934E	Weird LCM Operations brute force constructive algorithms number theory	3000	379
1933C	Turtle Fingers: Count the Values of k brute force implementation math number theory	1100	25.7k
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks brute force combinatorics constructive algorithms dfs and similar math	2300	1.2k
1932C	LR-remainders brute force data structures implementation math two pointers	1400	19.3k
1931A	Recovering a Small String brute force strings	800	40.3k
1931C	Make Equal Again brute force greedy math	1000	34.4k
1930B	Permutation Printing brute force constructive algorithms math	1000	17.9k
1930D1	Sum over all Substrings (Easy Version) brute force dp greedy strings	1800	4.9k
1930F	Maximize the Difference bitmasks brute force dfs and similar	2700	979
1929C	Sasha and the Casino binary search brute force constructive algorithms games greedy math	1400	17.6k
1929E	Sasha and the Happy Tree Cutting bitmasks brute force dfs and similar dp graphs greedy math trees	2300	2.1k
1929F	Sasha and the Wedding Binary Search Tree brute force combinatorics data structures dfs and similar math trees	2300	2.4k
1928C	Physical Education Lesson brute force math number theory	1600	10.5k
1928D	Lonely Mountain Dungeons brute force data structures greedy math ternary search	1900	5.3k
1928E	Modular Sequence brute force constructive algorithms dp graphs greedy math number theory	2300	2.3k
1927C	Choose the Different Ones! brute force greedy math	1000	31.9k
1927D	Find the Different Ones! binary search brute force data structures dp dsu greedy two pointers	1300	35.3k
1926F	Vlad and Avoiding X bitmasks brute force dfs and similar dp implementation	2200	2.1k
1925B	A Balanced Problemset? brute force greedy math number theory	1200	23.5k
1923F	Shrink-Reverse binary search brute force greedy hashing implementation string suffix structures strings	2800	545
1922D	Berserk Monsters brute force data structures dsu implementation math	1900	6.9k
1921E	Eat the Chip brute force games greedy math	1600	11.6k
1921F	Sum of Progression brute force data structures dp implementation math	1900	5.2k
1921G	Mischievous Shooter brute force data structures divide and conquer dp implementation	2200	1.5k
1920A	Satisfying Constraints brute force greedy math	800	29.8k
1920C	Partitioning the Array brute force math number theory	1600	20.9k
1920D	Array Repetition binary search brute force dsu implementation math	1900	6.7k
1920F1	Smooth Sailing (Easy Version) binary search brute force data structures dfs and similar dsu graphs shortest paths	2500	1.3k
1917B	Erase First or Second Letter brute force combinatorics data structures dp strings	1100	38.7k
1917C	Watering an Array brute force greedy implementation math	1600	12.6k
1916D	Mathematical Problem brute force constructive algorithms geometry math	1700	9.9k
1916H1	Matrix Rank (Easy Version) brute force combinatorics dp math matrices	2700	751
1915B	Not Quite Latin Square bitmasks brute force implementation	800	51.3k
1914D	Three Activities brute force dp greedy implementation sortings	1200	40.8k
1914E1	Game with Marbles (Easy Version) brute force games greedy sortings	1400	14.5k
1914G1	Light Bulbs (Easy Version) brute force combinatorics dfs and similar dp dsu graphs math trees	2100	2.5k
1913C	Game with Multiset binary search bitmasks brute force greedy	1300	17.8k
1909E	Multiple Lamps bitmasks brute force constructive algorithms math number theory	2400	1.7k
1909F1	Small Permutation Problem (Easy Version) brute force combinatorics dp math	2200	2.3k
1907E	Good Triples brute force combinatorics number theory	1600	16.7k
1907G	Lights brute force constructive algorithms dfs and similar graphs greedy implementation	2200	2.4k
1906A	Easy As ABC brute force	1000	6.2k
1905F	Field Should Not Be Empty brute force data structures divide and conquer	2600	796
1904A	Forked! brute force implementation	900	43.8k
1904C	Array Game binary search brute force data structures sortings two pointers	1400	25.2k
1904D1	Set To Max (Easy Version) brute force constructive algorithms greedy	1600	8.8k
1903A	Halloumi Boxes brute force greedy sortings	800	86.9k
1903B	StORage room bitmasks brute force constructive algorithms greedy	1200	15k
1903D1	Maximum And Queries (easy version) binary search bitmasks brute force greedy	1700	7.4k
1902B	Getting Points binary search brute force greedy	1100	16.6k
1902C	Insert and Equalize brute force constructive algorithms greedy math number theory	1300	17.5k
1900D	Small GCD bitmasks brute force dp math number theory	2000	5.6k
1899B	250 Thousand Tons of TNT brute force implementation number theory	1100	35.5k
1898A	Milica and String brute force implementation strings	800	17.6k
1898F	Vova Escapes the Matrix brute force dfs and similar divide and conquer shortest paths	2600	1k
1896H1	Cyclic Hamming (Easy Version) brute force divide and conquer dp fft math number theory	3400	181
1896H2	Cyclic Hamming (Hard Version) brute force dp fft math number theory	3500	164

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