Problemset - Codeforces

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Problems

#	Name
1972B	Coin Games games, math		x11609
1969D	Shop Game data structures, greedy, math, sortings		x2552
1969A	Two Friends constructive algorithms, implementation, math		x13951
1968G2	Division + LCP (hard version) binary search, brute force, data structures, divide and conquer, hashing, math, string suffix structures, strings		x370
1968D	Permutation Game dfs and similar, games, graphs, math		x6767
1968A	Maximize? brute force, math, number theory		x19379
1967E1	Again Counting Arrays (Easy Version) combinatorics, dp, fft, math		x83
1967C	Fenwick Tree brute force, combinatorics, data structures, dp, math, matrices, trees		x969
1967B2	Reverse Card (Hard Version) brute force, math, number theory		x2344
1967B1	Reverse Card (Easy Version) brute force, math, number theory		x7899
1967A	Permutation Counting implementation, math, sortings		x7215
1965A	Everything Nim games, greedy, math, sortings	1400	x8569
1957E	Carousel of Combinations brute force, combinatorics, dp, math, number theory	2400	x904
1957D	A BIT of an Inequality bitmasks, brute force, dp, math	1900	x3291
1957C	How Does the Rook Move? combinatorics, dp, math	1600	x6960
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x617
1956E1	Nene vs. Monsters (Easy Version) brute force, implementation, math	2500	x1150
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3011
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x10159
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x3249
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x5655
1955C	Inhabitant of the Deep Sea greedy, implementation, math	1300	x17136
1955A	Yogurt Sale math	800	x35345
1954F	Unique Strings combinatorics, dp, math	3100	x190
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x1670
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x4669
1954C	Long Multiplication greedy, math, number theory	1200	x14981
1954B	Make It Ugly implementation, math	1200	x14827
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x19701
1952G	Mathematician Takeover binary search, dfs and similar, math		x911
1952E	Sweep Line combinatorics, games, math		x206
1951G	Clacking Balls combinatorics, math, probabilities	3100	x239
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x2928
1951D	Buying Jewels constructive algorithms, greedy, math	2000	x4584
1951C	Ticket Hoarding greedy, math, sortings	1400	x9288
1951A	Dual Trigger constructive algorithms, greedy, math	900	x15990
1950C	Clock Conversion implementation, math	800	x34216
1949K	Make Triangle constructive algorithms, math	2800	x223
1949H	Division Avoidance greedy, math	3100	x68
1949E	Damage per Second brute force, math	2900	x78
1948F	Rare Coins combinatorics, math, probabilities	2500	x1106
1946E	Girl Permutation combinatorics, dp, math, number theory	2200	x2050
1946B	Maximum Sum dp, greedy, math	1100	x17636
1945H	GCD is Greater brute force, data structures, math, number theory	2600	x470
1945B	Fireworks math, number theory	900	x19352
1945A	Setting up Camp greedy, math	800	x24377
1944A	Destroying Bridges graphs, greedy, math	800	x20913
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1209
1943B	Non-Palindromic Substring hashing, implementation, math, strings	2000	x3186
1942G	Bessie and Cards combinatorics, dp, math	2800	x360
1942F	Farmer John's Favorite Function brute force, data structures, implementation, math	2700	x547
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x5410
1942C1	Bessie's Birthday Cake (Easy Version) geometry, greedy, math	1300	x9358
1942B	Bessie and MEX constructive algorithms, math	1100	x12093
1942A	Farmer John's Challenge constructive algorithms, math	800	x15415
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x26191
1941A	Rudolf and the Ticket brute force, math	800	x38632
1937A	Shuffle Party implementation, math	800	x21320
1936E	Yet Yet Another Permutation Problem divide and conquer, fft, math	3400	x94
1936B	Pinball binary search, data structures, implementation, math, two pointers	2000	x2395
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6505
1935E	Distance Learning Courses in MAC bitmasks, brute force, data structures, greedy, math	2400	x1158
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x7258
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x5997
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x16491
1934A	Too Min Too Max greedy, math	800	x23219
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks, brute force, combinatorics, constructive algorithms, dfs and similar, math	2300	x855
1933E	Turtle vs. Rabbit Race: Optimal Trainings binary search, implementation, math, ternary search	1500	x9612
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x17617
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x20330
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x29715
1933A	Turtle Puzzle: Rearrange and Negate greedy, math, sortings	800	x35212
1932G	Moving Platforms graphs, math, number theory, shortest paths	2300	x868
1932E	Final Countdown implementation, math, number theory	1600	x6711
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x13528
1931G	One-Dimensional Puzzle combinatorics, math, number theory	2000	x2425
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x13207
1931D	Divisible Pairs combinatorics, math, number theory	1300	x15703
1931C	Make Equal Again brute force, greedy, math	1000	x25892
1930E	2..3...4.... Wonderful! Wonderful! combinatorics, dp, math	2400	x979
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x13488
1929F	Sasha and the Wedding Binary Search Tree brute force, combinatorics, data structures, dfs and similar, math, trees	2300	x1610
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1486
1929D	Sasha and a Walk in the City combinatorics, dp, math, trees	1900	x4131
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x13139
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x23687
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x28755
1928F	Digital Patterns combinatorics, data structures, implementation, math	2900	x208
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1527
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x3710
1928C	Physical Education Lesson brute force, math, number theory	1600	x7417
1928A	Rectangle Cutting geometry, math	800	x21072
1927G	Paint Charges data structures, dp, greedy, math	2300	x1481
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x12312
1927C	Choose the Different Ones! brute force, greedy, math	1000	x25421
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x9871
1925D	Good Trip combinatorics, dp, math, probabilities	1900	x3197
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x18130
1924D	Balanced Subsequences combinatorics, dp, math	2700	x758
1924C	Fractal Origami geometry, math, matrices	2400	x1029

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