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Problemset

11,320 problems

#	Name	Rating↕	Solved↕
1937B	Binary Path dp greedy implementation	1300	17.6k
1936A	Bitwise Operation Wizard bitmasks constructive algorithms greedy interactive math	1700	8.8k
1936B	Pinball binary search data structures implementation math two pointers	2000	3.6k
1936C	Pokémon Arena data structures graphs greedy implementation shortest paths sortings	2400	1.8k
1936D	Bitwise Paradox binary search bitmasks data structures greedy two pointers	3100	705
1936E	Yet Yet Another Permutation Problem divide and conquer fft math	3400	155
1936F	Grand Finale: Circles binary search geometry	3300	184
1935A	Entertainment in MAC constructive algorithms strings	800	30.5k
1935B	Informatics in MAC constructive algorithms	1200	21.1k
1935C	Messenger in MAC binary search brute force constructive algorithms data structures dp greedy sortings	1800	9.9k
1935D	Exam in MAC binary search combinatorics implementation math	1800	11k
1935E	Distance Learning Courses in MAC bitmasks brute force data structures greedy math	2400	1.7k
1935F	Andrey's Tree binary search constructive algorithms data structures dfs and similar dsu greedy implementation trees	2800	634
1934A	Too Min Too Max greedy math	800	27.5k
1934B	Yet Another Coin Problem brute force dp greedy math	1200	22.4k
1934C	Find a Mine binary search constructive algorithms geometry greedy interactive math	1700	8.2k
1934D1	XOR Break --- Solo Version bitmasks constructive algorithms greedy	2100	4.2k
1934D2	XOR Break --- Game Version bitmasks games greedy interactive	2400	1.8k
1934E	Weird LCM Operations brute force constructive algorithms number theory	3000	379
1933A	Turtle Puzzle: Rearrange and Negate greedy math sortings	800	42.5k
1933B	Turtle Math: Fast Three Task implementation math number theory	800	37k
1933C	Turtle Fingers: Count the Values of k brute force implementation math number theory	1100	25.7k
1933D	Turtle Tenacity: Continual Mods constructive algorithms greedy math number theory sortings	1200	23.9k
1933E	Turtle vs. Rabbit Race: Optimal Trainings binary search implementation math ternary search	1500	13.9k
1933F	Turtle Mission: Robot and the Earthquake dfs and similar dp graphs shortest paths	2100	3k
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks brute force combinatorics constructive algorithms dfs and similar math	2300	1.2k
1932A	Thorns and Coins dp greedy implementation	800	34.4k
1932B	Chaya Calendar number theory	1100	24k
1932C	LR-remainders brute force data structures implementation math two pointers	1400	19.3k
1932D	Card Game greedy implementation	1400	13.6k
1932E	Final Countdown implementation math number theory	1600	10.4k
1932F	Feed Cats data structures dp sortings	1900	5.9k
1932G	Moving Platforms graphs math number theory shortest paths	2300	1.4k
1931A	Recovering a Small String brute force strings	800	40.3k
1931B	Make Equal greedy	800	35.6k
1931C	Make Equal Again brute force greedy math	1000	34.4k
1931D	Divisible Pairs combinatorics math number theory	1300	32.7k
1931E	Anna and the Valentine's Day Gift games greedy math sortings	1400	27.4k
1931F	Chat Screenshots combinatorics dfs and similar graphs	1700	12.5k
1931G	One-Dimensional Puzzle combinatorics math number theory	2000	3.8k
1930A	Maximise The Score greedy sortings	800	20.4k
1930B	Permutation Printing brute force constructive algorithms math	1000	17.9k
1930C	Lexicographically Largest binary search constructive algorithms data structures greedy sortings	1700	8.2k
1930D1	Sum over all Substrings (Easy Version) brute force dp greedy strings	1800	4.9k
1930D2	Sum over all Substrings (Hard Version) bitmasks divide and conquer dp dsu greedy implementation strings	2100	3.1k
1930E	2..3...4.... Wonderful! Wonderful! combinatorics dp math	2400	1.5k
1930F	Maximize the Difference bitmasks brute force dfs and similar	2700	979
1930G	Prefix Max Set Counting data structures dp trees	3100	531
1930H	Interactive Mex Tree constructive algorithms dfs and similar interactive trees	3300	379
1930I	Counting Is Fun combinatorics	3500	110
1929A	Sasha and the Beautiful Array constructive algorithms greedy math sortings	800	35.3k
1929B	Sasha and the Drawing constructive algorithms greedy math	800	26.9k
1929C	Sasha and the Casino binary search brute force constructive algorithms games greedy math	1400	17.6k
1929D	Sasha and a Walk in the City combinatorics dp math trees	1900	5.9k
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
1928A	Rectangle Cutting geometry math	800	24.6k
1928B	Equalize binary search greedy sortings two pointers	1200	21.1k
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
1928F	Digital Patterns combinatorics data structures implementation math	2900	479
1927A	Make it White greedy strings	800	52.2k
1927B	Following the String constructive algorithms greedy strings	900	38.6k
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
1927E	Klever Permutation constructive algorithms math two pointers	1400	17.3k
1927F	Microcycle data structures dfs and similar dsu graphs greedy implementation sortings trees	1900	5.6k
1927G	Paint Charges data structures dp greedy math	2300	2.1k
1926A	Vlad and the Best of Five implementation	800	63.5k
1926B	Vlad and Shapes geometry implementation	800	36.8k
1926C	Vlad and a Sum of Sum of Digits dp implementation	1200	33.4k
1926D	Vlad and Division bitmasks greedy	1300	18.7k
1926E	Vlad and an Odd Ordering binary search bitmasks data structures dp implementation math number theory	1500	15.2k
1926F	Vlad and Avoiding X bitmasks brute force dfs and similar dp implementation	2200	2.1k
1926G	Vlad and Trouble at MIT dfs and similar dp flows graphs greedy implementation trees	1900	4.7k
1925A	We Got Everything Covered! constructive algorithms greedy strings	800	31.3k
1925B	A Balanced Problemset? brute force greedy math number theory	1200	23.5k
1925D	Good Trip combinatorics dp math probabilities	1900	4.9k
1924A	Did We Get Everything Covered? constructive algorithms dp greedy shortest paths strings	1500	17k
1924B	Space Harbour data structures implementation math sortings	2100	3.4k
1924C	Fractal Origami geometry math matrices	2400	1.4k
1924D	Balanced Subsequences combinatorics dp math	2700	1.5k
1924E	Paper Cutting Again combinatorics probabilities	3100	604
1924F	Anti-Proxy Attendance constructive algorithms dp interactive ternary search	3500	234
1923A	Moving Chips greedy implementation	800	26.5k
1923B	Monsters Attack! dp greedy implementation	1100	20.1k
1923C	Find B constructive algorithms greedy	1400	18.8k
1923D	Slimes binary search constructive algorithms data structures greedy two pointers	1800	8.5k
1923E	Count Paths data structures dfs and similar dp dsu graphs trees	2000	5.3k
1923F	Shrink-Reverse binary search brute force greedy hashing implementation string suffix structures strings	2800	545
1922A	Tricky Template constructive algorithms implementation strings	800	29k
1922B	Forming Triangles combinatorics constructive algorithms math sortings	1200	23.7k
1922C	Closest Cities greedy implementation math	1300	22.4k
1922D	Berserk Monsters brute force data structures dsu implementation math	1900	6.9k
1922E	Increasing Subsequences bitmasks constructive algorithms divide and conquer greedy math	1800	9.3k
1922F	Replace on Segment dp graph matchings	2500	1.8k
1921A	Square greedy math	800	50.3k
1921B	Arranging Cats greedy implementation	800	36.8k
1921C	Sending Messages greedy math	900	33k

showing 2001–2100 of 11,320