Problemset - Codeforces

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Problems

#	Name
1969D	Shop Game data structures, greedy, math, sortings	1900	x2838
1969A	Two Friends constructive algorithms, implementation, math	800	x14385
1968G2	Division + LCP (hard version) binary search, brute force, data structures, dp, hashing, math, string suffix structures, strings		x1099
1968D	Permutation Game brute force, dfs and similar, games, graphs, greedy, math		x9931
1968A	Maximize? brute force, math, number theory		x24085
1967E2	Again Counting Arrays (Hard Version) combinatorics, dp, math		x43
1967E1	Again Counting Arrays (Easy Version) combinatorics, dp, fft, math		x105
1967C	Fenwick Tree bitmasks, brute force, combinatorics, data structures, dp, math, trees		x1111
1967B2	Reverse Card (Hard Version) brute force, math, number theory		x2644
1967B1	Reverse Card (Easy Version) brute force, math, number theory		x8521
1967A	Permutation Counting binary search, greedy, implementation, math, sortings		x7864
1965A	Everything Nim games, greedy, math, sortings	1400	x9200
1957E	Carousel of Combinations brute force, combinatorics, dp, math, number theory	2400	x957
1957D	A BIT of an Inequality bitmasks, brute force, dp, math	1900	x3424
1957C	How Does the Rook Move? combinatorics, dp, math	1600	x7222
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x638
1956E1	Nene vs. Monsters (Easy Version) brute force, implementation, math	2500	x1174
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3087
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x10345
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x3356
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x5757
1955C	Inhabitant of the Deep Sea greedy, implementation, math	1300	x17469
1955A	Yogurt Sale math	800	x35869
1954F	Unique Strings combinatorics, dp, math	3100	x195
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x1728
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x4765
1954C	Long Multiplication greedy, math, number theory	1200	x15315
1954B	Make It Ugly implementation, math	1200	x15091
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x20016
1952G	Mathematician Takeover binary search, dfs and similar, math		x918
1952E	Sweep Line combinatorics, games, math		x207
1951G	Clacking Balls combinatorics, math, probabilities	3100	x246
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x2969
1951D	Buying Jewels constructive algorithms, greedy, math	2000	x4628
1951C	Ticket Hoarding greedy, math, sortings	1400	x9431
1951A	Dual Trigger constructive algorithms, greedy, math	900	x16215
1950C	Clock Conversion implementation, math	800	x34588
1949K	Make Triangle constructive algorithms, math	2800	x224
1949H	Division Avoidance greedy, math	3100	x69
1949E	Damage per Second brute force, math	2900	x79
1948F	Rare Coins combinatorics, math, probabilities	2500	x1128
1946E	Girl Permutation combinatorics, dp, math, number theory	2200	x2067
1946B	Maximum Sum dp, greedy, math	1100	x17747
1945H	GCD is Greater brute force, data structures, math, number theory	2600	x483
1945B	Fireworks math, number theory	900	x19502
1945A	Setting up Camp greedy, math	800	x24524
1944A	Destroying Bridges graphs, greedy, math	800	x21067
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1243
1943B	Non-Palindromic Substring hashing, implementation, math, strings	2000	x3254
1942G	Bessie and Cards combinatorics, dp, math	2800	x364
1942F	Farmer John's Favorite Function brute force, data structures, implementation, math	2700	x552
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x5436
1942C1	Bessie's Birthday Cake (Easy Version) geometry, greedy, math	1300	x9417
1942B	Bessie and MEX constructive algorithms, math	1100	x12152
1942A	Farmer John's Challenge constructive algorithms, math	800	x15482
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x26310
1941A	Rudolf and the Ticket brute force, math	800	x38777
1937A	Shuffle Party implementation, math	800	x21380
1936E	Yet Yet Another Permutation Problem divide and conquer, fft, math	3400	x94
1936B	Pinball binary search, data structures, implementation, math, two pointers	2000	x2421
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6532
1935E	Distance Learning Courses in MAC bitmasks, brute force, data structures, greedy, math	2400	x1164
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x7289
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x6017
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x16566
1934A	Too Min Too Max greedy, math	800	x23291
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks, brute force, combinatorics, constructive algorithms, dfs and similar, math	2300	x862
1933E	Turtle vs. Rabbit Race: Optimal Trainings binary search, implementation, math, ternary search	1500	x9653
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x17689
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x20402
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x29804
1933A	Turtle Puzzle: Rearrange and Negate greedy, math, sortings	800	x35309
1932G	Moving Platforms graphs, math, number theory, shortest paths	2300	x873
1932E	Final Countdown implementation, math, number theory	1600	x6746
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x13604
1931G	One-Dimensional Puzzle combinatorics, math, number theory	2000	x2431
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x13263
1931D	Divisible Pairs combinatorics, math, number theory	1300	x15764
1931C	Make Equal Again brute force, greedy, math	1000	x25960
1930E	2..3...4.... Wonderful! Wonderful! combinatorics, dp, math	2400	x982
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x13547
1929F	Sasha and the Wedding Binary Search Tree brute force, combinatorics, data structures, dfs and similar, math, trees	2300	x1619
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1504
1929D	Sasha and a Walk in the City combinatorics, dp, math, trees	1900	x4155
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x13184
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x23734
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x28818
1928F	Digital Patterns combinatorics, data structures, implementation, math	2900	x209
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1535
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x3723
1928C	Physical Education Lesson brute force, math, number theory	1600	x7446
1928A	Rectangle Cutting geometry, math	800	x21119
1927G	Paint Charges data structures, dp, greedy, math	2300	x1489
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x12355
1927C	Choose the Different Ones! brute force, greedy, math	1000	x25495
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x9951
1925D	Good Trip combinatorics, dp, math, probabilities	1900	x3205
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x18171
1924D	Balanced Subsequences combinatorics, dp, math	2700	x770
1924C	Fractal Origami geometry, math, matrices	2400	x1036

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