Problemset - Codeforces

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Problems

#	Name
1989A	Catch the Coin implementation	800	x19213
1986D	Mathematical Problem brute force, dp, greedy, implementation, math, two pointers	1400	x11388
1985H2	Maximize the Largest Component (Hard Version) data structures, dfs and similar, dp, dsu, implementation	2200	x1111
1985H1	Maximize the Largest Component (Easy Version) brute force, data structures, dfs and similar, dsu, graphs, implementation	1700	x4149
1985D	Manhattan Circle implementation, math	900	x28784
1985A	Creating Words implementation, strings	800	x41828
1984G	Magic Trick II constructive algorithms, implementation, sortings	3200	x162
1984D	''a'' String Problem brute force, hashing, implementation, math, string suffix structures, strings	2000	x2654
1984B	Large Addition implementation, math	1100	x15493
1982D	Beauty of the mountains brute force, data structures, implementation, math, number theory	1700	x5222
1982B	Collatz Conjecture brute force, implementation, math, number theory	1200	x13363
1982A	Soccer greedy, implementation, math, sortings	800	x20655
1981C	Turtle and an Incomplete Sequence bitmasks, brute force, constructive algorithms, greedy, implementation, math	1800	x4214
1980E	Permutation of Rows and Columns constructive algorithms, data structures, greedy, hashing, implementation, math, matrices, sortings	1600	x8656
1980D	GCD-sequence greedy, implementation, math, number theory	1400	x12066
1979E	Manhattan Triangle binary search, constructive algorithms, data structures, geometry, implementation, two pointers	2400	x1111
1979A	Guess the Maximum brute force, greedy, implementation	800	x26059
1978E	Computing Machine brute force, data structures, dp, greedy, implementation	2000	x2821
1978D	Elections data structures, greedy, implementation, math	1600	x8682
1978C	Manhattan Permutations constructive algorithms, data structures, greedy, implementation, math	1300	x11914
1976D	Invertible Bracket Sequences binary search, combinatorics, data structures, divide and conquer, implementation, two pointers	2000	x3424
1976C	Job Interview binary search, dp, greedy, implementation, two pointers	1600	x8693
1976B	Increase/Decrease/Copy greedy, implementation	1100	x19599
1976A	Verify Password implementation, sortings, strings	800	x25239
1975E	Chain Queries binary search, data structures, dfs and similar, implementation, trees	2100	x1894
1975A	Bazoka and Mocha's Array brute force, greedy, implementation, sortings	800	x17068
1974F	Cutting Game binary search, brute force, data structures, implementation, sortings, two pointers	1900	x3067
1974D	Ingenuity-2 constructive algorithms, greedy, implementation	1400	x12894
1974B	Symmetric Encoding implementation, sortings, strings	800	x27877
1973F	Maximum GCD Sum Queries bitmasks, brute force, dp, implementation, number theory	3100	x175
1973C	Cat, Fox and Double Maximum constructive algorithms, greedy, implementation, math, sortings	1700	x7261
1973A	Chess For Three brute force, dp, implementation, math	900	x21783
1971F	Circle Perimeter binary search, brute force, dfs and similar, geometry, implementation, math	1600	x8567
1971D	Binary Cut dp, greedy, implementation, sortings, strings	1100	x22972
1971C	Clock and Strings implementation	900	x28779
1971B	Different String implementation, strings	800	x32596
1971A	My First Sorting Problem implementation, sortings	800	x39391
1970F3	Playing Quidditch (Hard) implementation	2300	x301
1970F2	Playing Quidditch (Medium) implementation	2300	x292
1970F1	Playing Quidditch (Easy) implementation	2300	x365
1970A1	Balanced Shuffle (Easy) implementation, sortings	1000	x3472
1969F	Card Pairing dp, greedy, hashing, implementation	3000	x194
1969C	Minimizing the Sum dp, implementation	1700	x7358
1969A	Two Friends constructive algorithms, implementation, math	800	x18372
1967F	Next and Prev brute force, data structures, implementation	3200	x49
1967D	Long Way to be Non-decreasing binary search, dfs and similar, graphs, implementation, shortest paths, two pointers	2800	x535
1967A	Permutation Counting binary search, greedy, implementation, math, sortings	1400	x10918
1966B	Rectangle Filling constructive algorithms, implementation	1100	x13492
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation	1100	x16525
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x744
1956E1	Nene vs. Monsters (Easy Version) brute force, implementation, math	2500	x1330
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3518
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x3930
1955E	Long Inversions brute force, greedy, implementation, sortings	1700	x7804
1955C	Inhabitant of the Deep Sea greedy, implementation, math	1300	x19374
1955B	Progressive Square constructive algorithms, data structures, implementation, sortings	1000	x25640
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x1983
1954B	Make It Ugly implementation, math	1200	x16989
1952J	Help, what does it mean to be "Based" brute force, constructive algorithms, expression parsing, implementation, sortings		x722
1952H	Palindrome implementation, strings		x384
1952D	Are You a Procrastinator? implementation		x4330
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x3273
1950G	Shuffling Songs bitmasks, dfs and similar, dp, graphs, hashing, implementation, strings	1900	x3863
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x8279
1950E	Nearly Shortest Repeating Substring brute force, implementation, number theory, strings	1500	x13088
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x21583
1950C	Clock Conversion implementation, math	800	x37038
1950B	Upscaling implementation	800	x35370
1950A	Stair, Peak, or Neither? implementation	800	x47108
1949J	Amanda the Amoeba graphs, implementation, trees, two pointers	2600	x346
1948E	Clique Partition brute force, constructive algorithms, graphs, greedy, implementation	2100	x2753
1948B	Array Fix brute force, dp, greedy, implementation	1100	x21489
1946D	Birthday Gift bitmasks, brute force, constructive algorithms, greedy, implementation	1900	x4292
1946C	Tree Cutting binary search, dp, greedy, implementation, trees	1600	x9774
1946A	Median of an Array greedy, implementation, sortings	800	x24792
1945G	Cook and Porridge binary search, constructive algorithms, data structures, implementation	2500	x676
1943B	Non-Palindromic Substring hashing, implementation, math, strings	2000	x3520
1942F	Farmer John's Favorite Function brute force, data structures, implementation, math	2700	x616
1942D	Learning to Paint binary search, data structures, dfs and similar, dp, greedy, implementation, sortings	2100	x2579
1941D	Rudolf and the Ball Game dfs and similar, dp, implementation	1200	x17358
1940B	Three Arrays *special problem, constructive algorithms, implementation, sortings		x181
1937B	Binary Path dp, greedy, implementation	1300	x13873
1937A	Shuffle Party implementation, math	800	x22216
1936C	Pokémon Arena data structures, graphs, greedy, implementation, shortest paths, sortings	2400	x1163
1936B	Pinball binary search, data structures, implementation, math, two pointers	2000	x2578
1935F	Andrey's Tree binary search, constructive algorithms, data structures, dfs and similar, dsu, greedy, implementation, trees	2800	x412
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x7661
1933E	Turtle vs. Rabbit Race: Optimal Trainings binary search, implementation, math, ternary search	1500	x10312
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x21412
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x31029
1932E	Final Countdown implementation, math, number theory	1600	x7388
1932D	Card Game greedy, implementation	1400	x10553
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x14573
1932A	Thorns and Coins dp, greedy, implementation	800	x27909
1930D2	Sum over all Substrings (Hard Version) bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings	2100	x2458
1928F	Digital Patterns combinatorics, data structures, implementation, math	2900	x222
1927F	Microcycle data structures, dfs and similar, dsu, graphs, greedy, implementation, sortings, trees	1900	x4010
1926G	Vlad and Trouble at MIT dfs and similar, dp, flows, graphs, greedy, implementation, trees	1900	x3225
1926F	Vlad and Avoiding X bitmasks, brute force, dfs and similar, dp, implementation	2200	x1572
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x10853

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