Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
1957E	Carousel of Combinations brute force, combinatorics, dp, math, number theory		x699
1957D	A BIT of an Inequality bitmasks, brute force, dp, math		x2761
1957C	How Does the Rook Move? combinatorics, dp, math		x6170
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x555
1956E1	Nene vs. Monsters (Easy Version) brute force, implementation, math	2500	x1067
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x2745
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x9533
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x2999
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x5342
1955C	Inhabitant of the Deep Sea greedy, implementation, math	1300	x16229
1955A	Yogurt Sale math	800	x33515
1954F	Unique Strings combinatorics, dp, math	3100	x174
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x1521
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x4374
1954C	Long Multiplication greedy, math, number theory	1200	x14176
1954B	Make It Ugly implementation, math	1200	x14156
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x18819
1952G	Mathematician Takeover binary search, dfs and similar, math		x895
1952E	Sweep Line combinatorics, games, math		x199
1951G	Clacking Balls combinatorics, math, probabilities	3100	x219
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x2823
1951D	Buying Jewels constructive algorithms, greedy, math	2000	x4446
1951C	Ticket Hoarding greedy, math, sortings	1400	x8939
1951A	Dual Trigger constructive algorithms, greedy, math	900	x15527
1950C	Clock Conversion implementation, math	800	x33456
1949K	Make Triangle constructive algorithms, math		x222
1949H	Division Avoidance greedy, math		x65
1949E	Damage per Second brute force, math		x75
1948F	Rare Coins combinatorics, math, probabilities	2500	x1059
1946E	Girl Permutation combinatorics, dp, math, number theory	2200	x1998
1946B	Maximum Sum dp, greedy, math	1100	x17390
1945H	GCD is Greater brute force, data structures, math, number theory	2600	x457
1945B	Fireworks math, number theory	900	x19007
1945A	Setting up Camp greedy, math	800	x23890
1944A	Destroying Bridges graphs, greedy, math	800	x20642
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1173
1943B	Non-Palindromic Substring hashing, implementation, math, strings	2000	x3123
1942G	Bessie and Cards combinatorics, dp, math	2800	x343
1942F	Farmer John's Favorite Function brute force, data structures, implementation, math	2700	x521
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x5328
1942C1	Bessie's Birthday Cake (Easy Version) geometry, greedy, math	1300	x9201
1942B	Bessie and MEX constructive algorithms, math	1100	x11942
1942A	Farmer John's Challenge constructive algorithms, math	800	x15242
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x25912
1941A	Rudolf and the Ticket brute force, math	800	x38304
1937A	Shuffle Party implementation, math	800	x21177
1936E	Yet Yet Another Permutation Problem divide and conquer, fft, math	3400	x93
1936B	Pinball binary search, data structures, implementation, math, two pointers	2000	x2358
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6439
1935E	Distance Learning Courses in MAC bitmasks, brute force, data structures, greedy, math	2400	x1134
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x7189
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x5939
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x16316
1934A	Too Min Too Max greedy, math	800	x23054
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks, brute force, combinatorics, constructive algorithms, dfs and similar, math	2300	x848
1933E	Turtle vs. Rabbit Race: Optimal Trainings binary search, implementation, math, ternary search	1500	x9504
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x17443
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x20170
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x29514
1933A	Turtle Puzzle: Rearrange and Negate greedy, math, sortings	800	x34980
1932G	Moving Platforms graphs, math, number theory, shortest paths	2300	x858
1932E	Final Countdown implementation, math, number theory	1600	x6582
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x13379
1931G	One-Dimensional Puzzle combinatorics, math, number theory	2000	x2399
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x13089
1931D	Divisible Pairs combinatorics, math, number theory	1300	x15584
1931C	Make Equal Again brute force, greedy, math	1000	x25727
1930E	2..3...4.... Wonderful! Wonderful! combinatorics, dp, math	2400	x972
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x13379
1929F	Sasha and the Wedding Binary Search Tree brute force, combinatorics, data structures, dfs and similar, math, trees	2300	x1600
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1471
1929D	Sasha and a Walk in the City combinatorics, dp, math, trees	1900	x4091
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x13052
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x23585
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x28636
1928F	Digital Patterns combinatorics, data structures, implementation, math	2900	x205
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1507
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x3689
1928C	Physical Education Lesson brute force, math, number theory	1600	x7346
1928A	Rectangle Cutting geometry, math	800	x20950
1927G	Paint Charges data structures, dp, greedy, math	2300	x1471
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x12210
1927C	Choose the Different Ones! brute force, greedy, math	1000	x25283
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x9770
1925D	Good Trip combinatorics, dp, math, probabilities	1900	x3178
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x18046
1924D	Balanced Subsequences combinatorics, dp, math	2700	x748
1924C	Fractal Origami geometry, math, matrices	2400	x1024
1924B	Space Harbour data structures, implementation, math, sortings	2100	x2246
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x6956
1922D	Berserk Monsters brute force, data structures, dsu, implementation, math	1900	x5128
1922C	Closest Cities greedy, implementation, math	1300	x16690
1922B	Forming Triangles combinatorics, constructive algorithms, math, sortings	1200	x18823
1921F	Sum of Progression brute force, data structures, dp, implementation, math	1900	x3398
1921E	Eat the Chip brute force, games, greedy, math	1600	x8802
1921C	Sending Messages greedy, math	900	x27059
1921A	Square greedy, math	800	x39598
1920E	Counting Binary Strings combinatorics, dp, math	2100	x2323
1920D	Array Repetition binary search, brute force, dsu, implementation, math	1900	x5047
1920C	Partitioning the Array brute force, math, number theory	1600	x11676

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