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Problemset

463 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
1989D	Smithing Skill brute force data structures dp greedy math sortings two pointers	1900	7.2k
1988D	The Omnipotent Monster Killer brute force dfs and similar dp trees	2000	6.1k
1986D	Mathematical Problem brute force dp greedy implementation math two pointers	1400	18.2k
1984F	Reconstruction brute force dp math	2500	1.2k
1983G	Your Loss bitmasks brute force dp trees	3000	325
1982E	Number of k-good subarrays bitmasks brute force combinatorics divide and conquer dp math meet-in-the-middle	2300	1.9k
1979D	Fixing a Binary String bitmasks brute force constructive algorithms dp greedy hashing strings	1800	8k
1978E	Computing Machine brute force data structures dp greedy implementation	2000	4.7k
1977C	Nikita and LCM brute force data structures dp greedy math number theory sortings	1900	8.2k
1975D	Paint the Tree brute force dfs and similar dp greedy shortest paths trees	1700	7.7k
1975F	Set bitmasks brute force combinatorics dfs and similar divide and conquer dp math	2600	1.1k
1973A	Chess For Three brute force dp implementation math	900	29k
1973F	Maximum GCD Sum Queries bitmasks brute force dp implementation number theory	3100	345
1970G2	Min-Fund Prison (Medium) brute force dfs and similar dp graphs trees	2200	909
1968G2	Division + LCP (hard version) binary search brute force data structures dp hashing math string suffix structures strings	2200	2.6k
1967C	Fenwick Tree bitmasks brute force combinatorics data structures dp math trees	2300	2.3k
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
1956D	Nene and the Mex Operator bitmasks brute force constructive algorithms divide and conquer dp greedy implementation math	2000	4.9k
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
1950D	Product of Binary Decimals brute force dp implementation number theory	1100	26.7k
1949A	Grove brute force dfs and similar dp geometry probabilities	3300	223
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
1943D1	Counting Is Fun (Easy Version) brute force combinatorics dp math	2400	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
1934B	Yet Another Coin Problem brute force dp greedy math	1200	22.4k
1930D1	Sum over all Substrings (Easy Version) brute force dp greedy strings	1800	4.9k
1929E	Sasha and the Happy Tree Cutting bitmasks brute force dfs and similar dp graphs greedy math trees	2300	2.1k
1928E	Modular Sequence brute force constructive algorithms dp graphs greedy math number theory	2300	2.3k
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
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
1917B	Erase First or Second Letter brute force combinatorics data structures dp strings	1100	38.7k
1916H1	Matrix Rank (Easy Version) brute force combinatorics dp math matrices	2700	751
1914D	Three Activities brute force dp greedy implementation sortings	1200	40.8k
1914G1	Light Bulbs (Easy Version) brute force combinatorics dfs and similar dp dsu graphs math trees	2100	2.5k
1909F1	Small Permutation Problem (Easy Version) brute force combinatorics dp math	2200	2.3k
1900D	Small GCD bitmasks brute force dp math number theory	2000	5.6k
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
1895C	Torn Lucky Ticket brute force dp hashing implementation math	1400	13.3k
1895E	Infinite Card Game binary search brute force data structures dfs and similar dp dsu games graphs greedy sortings two pointers	2300	1.9k
1889C1	Doremy's Drying Plan (Easy Version) brute force data structures dp greedy sortings	2000	4k
1884C	Medium Design brute force data structures dp greedy sortings	1700	7.5k
1874B	Jellyfish and Math bitmasks brute force dfs and similar dp graphs shortest paths	2400	1.4k
1870E	Another MEX Problem bitmasks brute force dp shortest paths	2300	3.1k
1866M	Mighty Rock Tower brute force combinatorics dp math probabilities	2400	1k
1864D	Matrix Cascade brute force constructive algorithms data structures dp greedy math	1700	7.7k
1863E	Speedrun brute force dfs and similar dp graphs greedy math sortings two pointers	2100	3.3k
1862F	Magic Will Save the World binary search bitmasks brute force dp	1800	7.8k
1859C	Another Permutation Problem brute force dp greedy math	1200	18.9k
1859E	Maximum Monogonosity brute force dp math	2500	2.2k
1858B	The Walkway brute force dp greedy math number theory	1500	13.2k
1858D	Trees and Segments brute force data structures dp greedy two pointers	2200	3.3k
1856C	To Become Max binary search brute force data structures dp	1600	19.2k
1854B	Earn or Unlock bitmasks brute force dp	2200	4.4k
1854E	Game Bundles brute force constructive algorithms dp greedy math	3000	575
1854F	Mark and Spaceship brute force dp	3500	149
1847C	Vampiric Powers, anyone? bitmasks brute force dp greedy	1400	15k
1845D	Rating System binary search brute force data structures dp dsu greedy math two pointers	1800	9.2k
1841C	Ranom Numbers brute force dp greedy math strings	1800	9.2k
1840F	Railguns brute force dfs and similar dp graphs	2200	2.2k
1832E	Combinatorics Problem brute force combinatorics dp	2200	2.6k
1830D	Mex Tree brute force dp trees	2800	956
1829D	Gold Rush brute force dfs and similar dp implementation	1000	35k
1827C	Palindrome Partition binary search brute force data structures dp hashing strings	2600	1.8k
1826D	Running Miles brute force dp greedy	1700	15.8k
1826E	Walk the Runway bitmasks brute force data structures dp graphs implementation sortings	2400	2k
1823E	Removing Graph brute force dp games graphs math	2500	1.5k
1822F	Gardening Friends brute force dfs and similar dp graphs trees	1700	7.9k
1821E	Rearrange Brackets brute force dp greedy sortings strings	2100	2.8k
1819D	Misha and Apples brute force data structures dp two pointers	2800	907
1808C	Unlucky Numbers brute force dp greedy implementation	1900	4.4k
1808E3	Minibuses on Venus (hard version) brute force combinatorics dp math	2800	622
1807G1	Subsequence Addition (Easy Version) brute force data structures dp greedy implementation sortings	1100	22.7k
1805E	There Should Be a Lot of Maximums brute force data structures dfs and similar dp trees two pointers	2300	2k
1804D	Accommodation brute force dp greedy implementation	2000	5.3k
1804E	Routing bitmasks brute force dfs and similar dp graphs	2400	1.7k
1799F	Halve or Subtract binary search brute force dp greedy sortings	2700	1.1k
1798E	Multitest Generator brute force dp	2300	2.1k
1797D	Li Hua and Tree brute force data structures dfs and similar dp implementation trees	1900	4.7k
1792E	Divisors and Table brute force dfs and similar dp number theory	2400	1.6k
1792F2	Graph Coloring (hard version) brute force combinatorics divide and conquer dp fft graphs	2900	558
1789E	Serval and Music Game brute force dp implementation math number theory	2500	1k
1789F	Serval and Brain Power bitmasks brute force dp greedy implementation strings	2700	1k
1784E	Infinite Game brute force combinatorics dp games probabilities	3100	485
1783D	Different Arrays brute force dp implementation	2000	5.4k
1780F	Three Chairs bitmasks brute force combinatorics data structures dp number theory sortings	2300	2k
1774G	Segment Covering brute force combinatorics constructive algorithms data structures dp trees	3200	692
1771D	Hossam and (sub-)palindromic tree brute force data structures dfs and similar dp strings trees	2100	3.3k
1771E	Hossam and a Letter brute force dp implementation two pointers	2500	852
1769C1	Подкрутка I *special brute force dp greedy	1200	1.1k
1769D1	Игра в Девятку I *special brute force dp	1800	424
1767E	Algebra Flash bitmasks brute force dp graphs math meet-in-the-middle trees	2500	1.3k
1766E	Decomposition binary search brute force data structures divide and conquer dp two pointers	2300	1.5k
1759E	The Humanoid brute force dp sortings	1500	12.7k

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