Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 953 (Div. 2)
39:26:00
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
1985H2	Maximize the Largest Component (Hard Version) data structures, dfs and similar, dp, dsu, implementation		x754
1984H	Tower Capturing combinatorics, dp, geometry	3300	x92
1984F	Reconstruction brute force, dp, math	2500	x589
1984E	Shuffle dp, greedy, trees	2400	x922
1984C2	Magnitude (Hard Version) combinatorics, dp, greedy, math	1700	x5208
1984C1	Magnitude (Easy Version) dp, greedy, math	1300	x11331
1981F	Turtle and Paths on a Tree data structures, dp, trees	3000	x151
1979D	Fixing a Binary String bitmasks, brute force, constructive algorithms, dp, greedy, hashing, strings	1800	x4849
1977C	Nikita and LCM brute force, data structures, dp, greedy, math, number theory, sortings	1900	x5325
1976F	Remove Bridges data structures, dfs and similar, dp, greedy, sortings, trees	2800	x367
1976C	Job Interview binary search, dp, greedy, implementation, two pointers	1600	x8065
1975I	Mind Bloom dp	3500	x39
1975F	Set bitmasks, brute force, combinatorics, dfs and similar, divide and conquer, dp, math	2600	x613
1975D	Paint the Tree brute force, dfs and similar, dp, greedy, shortest paths, trees	1700	x4698
1974E	Money Buys Happiness dp	1800	x6252
1973F	Maximum GCD Sum Queries bitmasks, brute force, dp, implementation, number theory	3100	x157
1973A	Chess For Three brute force, dp, implementation, math	900	x20914
1971D	Binary Cut dp, greedy, implementation, sortings, strings	1100	x22209
1970G3	Min-Fund Prison (Hard) bitmasks, dfs and similar, dp, graphs, trees	2400	x242
1970G2	Min-Fund Prison (Medium) brute force, dfs and similar, dp, graphs, trees	2200	x414
1970E3	Trails (Hard) dp, matrices	2200	x471
1970E2	Trails (Medium) dp, matrices	2000	x845
1970E1	Trails (Easy) dp	1800	x1348
1970C3	Game on Tree (Hard) dfs and similar, dp, games, trees	1900	x995
1970C2	Game on Tree (Medium) dfs and similar, dp, games, trees	1700	x1717
1969F	Card Pairing dp, greedy, hashing, implementation	3000	x164
1969E	Unique Array binary search, data structures, divide and conquer, dp, greedy	2400	x1081
1969C	Minimizing the Sum dp, implementation	1700	x6999
1968G2	Division + LCP (hard version) binary search, brute force, data structures, dp, hashing, math, string suffix structures, strings	2200	x1579
1968G1	Division + LCP (easy version) binary search, data structures, dp, hashing, string suffix structures, strings	1900	x3542
1967E2	Again Counting Arrays (Hard Version) combinatorics, dp, math	3500	x76
1967E1	Again Counting Arrays (Easy Version) combinatorics, dp, fft, math	3100	x155
1967C	Fenwick Tree bitmasks, brute force, combinatorics, data structures, dp, math, trees	2300	x1423
1958H	Composite Spells *special problem, dp	2600	x66
1958A	1-3-5 *special problem, dp	1100	x1217
1957E	Carousel of Combinations brute force, combinatorics, dp, math, number theory	2400	x1077
1957D	A BIT of an Inequality bitmasks, brute force, dp, math	1900	x3930
1957C	How Does the Rook Move? combinatorics, dp, math	1600	x8331
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3439
1955H	The Most Reckless Defense bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths	2300	x1096
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x3811
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x6260
1954F	Unique Strings combinatorics, dp, math	3100	x226
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x5288
1951H	Thanos Snap binary search, dp, games, greedy, trees	3200	x225
1950G	Shuffling Songs bitmasks, dfs and similar, dp, graphs, hashing, implementation, strings	1900	x3757
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x21264
1949C	Annual Ants' Gathering dfs and similar, dp, greedy, trees	1900	x1364
1949A	Grove brute force, dfs and similar, dp, geometry, probabilities	3300	x91
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x15092
1948B	Array Fix brute force, dp, greedy, implementation	1100	x21120
1946F	Nobody is needed 2-sat, data structures, dfs and similar, dp	2500	x809
1946E	Girl Permutation combinatorics, dp, math, number theory	2200	x2197
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x9560
1946B	Maximum Sum dp, greedy, math	1100	x18690
1945D	Seraphim the Owl dp, greedy	1300	x12862
1943F	Minimum Hamming Distance dp	3500	x88
1943D2	Counting Is Fun (Hard Version) combinatorics, dp	2800	x636
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1304
1942H	Farmer John's Favorite Intern data structures, dp, flows, trees	3500	x72
1942G	Bessie and Cards combinatorics, dp, math	2800	x395
1942D	Learning to Paint binary search, data structures, dfs and similar, dp, greedy, implementation, sortings	2100	x2536
1941E	Rudolf and k Bridges binary search, data structures, dp, two pointers	1600	x8547
1941D	Rudolf and the Ball Game dfs and similar, dp, implementation	1200	x17129
1941C	Rudolf and the Ugly String dp, greedy, strings	900	x30673
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x27327
1939D	Big Persimmon *special problem, dp, games		x84
1939A	Draw Polygon Lines *special problem, constructive algorithms, dp, geometry, interactive		x20
1937B	Binary Path dp, greedy, implementation	1300	x13610
1935C	Messenger in MAC binary search, brute force, constructive algorithms, data structures, dp, greedy, sortings	1800	x7386
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x17247
1933F	Turtle Mission: Robot and the Earthquake dfs and similar, dp, graphs, shortest paths	2100	x2268
1932F	Feed Cats data structures, dp, sortings	1900	x3565
1932A	Thorns and Coins dp, greedy, implementation	800	x27533
1930G	Prefix Max Set Counting data structures, dp, trees	3100	x304
1930E	2..3...4.... Wonderful! Wonderful! combinatorics, dp, math	2400	x1028
1930D2	Sum over all Substrings (Hard Version) bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings	2100	x2434
1930D1	Sum over all Substrings (Easy Version) brute force, dp, greedy, strings	1800	x3799
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1549
1929D	Sasha and a Walk in the City combinatorics, dp, math, trees	1900	x4298
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1590
1927G	Paint Charges data structures, dp, greedy, math	2300	x1529
1927D	Find the Different Ones! binary search, brute force, data structures, dp, dsu, greedy, two pointers	1300	x18954
1926G	Vlad and Trouble at MIT dfs and similar, dp, flows, graphs, greedy, implementation, trees	1900	x3104
1926F	Vlad and Avoiding X bitmasks, brute force, dfs and similar, dp, implementation	2200	x1548
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x10625
1926C	Vlad and a Sum of Sum of Digits dp, implementation	1200	x24139
1925D	Good Trip combinatorics, dp, math, probabilities	1900	x3321
1924F	Anti-Proxy Attendance constructive algorithms, dp, interactive, ternary search	3500	x134
1924D	Balanced Subsequences combinatorics, dp, math	2700	x797
1924A	Did We Get Everything Covered? constructive algorithms, dp, greedy, shortest paths, strings	1500	x12713
1923E	Count Paths data structures, dfs and similar, dp, dsu, graphs, trees	2000	x3327
1923B	Monsters Attack! dp, greedy, implementation	1100	x16568
1922F	Replace on Segment dp, graph matchings	2500	x1189
1921G	Mischievous Shooter brute force, data structures, divide and conquer, dp, implementation	2200	x1163
1921F	Sum of Progression brute force, data structures, dp, implementation, math	1900	x3545
1920E	Counting Binary Strings combinatorics, dp, math	2100	x2431
1919F2	Wine Factory (Hard Version) data structures, dp, flows, greedy, matrices	2800	x757
1919E	Counting Prefixes combinatorics, constructive algorithms, dp, implementation, math	2600	x790
1919C	Grouping Increases data structures, dp, greedy	1400	x17247

←