Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
23:47:31
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Before contest
Codeforces Round 941 (Div. 2)
23:47:31
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Problems

#	Name
1957E	Carousel of Combinations brute force, combinatorics, dp, math, number theory		x790
1957D	A BIT of an Inequality bitmasks, brute force, dp, math		x3013
1957C	How Does the Rook Move? combinatorics, dp, math		x6521
1956E2	Nene vs. Monsters (Hard Version) brute force, greedy, implementation, math	2700	x574
1956E1	Nene vs. Monsters (Easy Version) brute force, implementation, math	2500	x1092
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x2844
1956C	Nene's Magical Matrix constructive algorithms, greedy, math	1600	x9739
1955G	GCD on a grid brute force, dfs and similar, dp, implementation, math, number theory	1900	x3050
1955F	Unfair Game dp, games, greedy, math, schedules	1800	x5418
1955C	Inhabitant of the Deep Sea greedy, implementation, math	1300	x16432
1955A	Yogurt Sale math	800	x33895
1954F	Unique Strings combinatorics, dp, math	3100	x178
1954E	Chain Reaction binary search, data structures, dsu, greedy, implementation, math, number theory	2200	x1564
1954D	Colored Balls combinatorics, dp, math, sortings	1800	x4471
1954C	Long Multiplication greedy, math, number theory	1200	x14398
1954B	Make It Ugly implementation, math	1200	x14347
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x19044
1952G	Mathematician Takeover binary search, dfs and similar, math		x897
1952E	Sweep Line combinatorics, games, math		x200
1951G	Clacking Balls combinatorics, math, probabilities	3100	x223
1951E	No Palindromes brute force, constructive algorithms, divide and conquer, greedy, hashing, implementation, math, strings	2000	x2851
1951D	Buying Jewels constructive algorithms, greedy, math	2000	x4490
1951C	Ticket Hoarding greedy, math, sortings	1400	x9036
1951A	Dual Trigger constructive algorithms, greedy, math	900	x15647
1950C	Clock Conversion implementation, math	800	x33627
1949K	Make Triangle constructive algorithms, math		x222
1949H	Division Avoidance greedy, math		x65
1949E	Damage per Second brute force, math		x77
1948F	Rare Coins combinatorics, math, probabilities	2500	x1074
1946E	Girl Permutation combinatorics, dp, math, number theory	2200	x2012
1946B	Maximum Sum dp, greedy, math	1100	x17475
1945H	GCD is Greater brute force, data structures, math, number theory	2600	x461
1945B	Fireworks math, number theory	900	x19087
1945A	Setting up Camp greedy, math	800	x23997
1944A	Destroying Bridges graphs, greedy, math	800	x20703
1943D1	Counting Is Fun (Easy Version) brute force, combinatorics, dp, math	2400	x1182
1943B	Non-Palindromic Substring hashing, implementation, math, strings	2000	x3135
1942G	Bessie and Cards combinatorics, dp, math	2800	x350
1942F	Farmer John's Favorite Function brute force, data structures, implementation, math	2700	x530
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x5356
1942C1	Bessie's Birthday Cake (Easy Version) geometry, greedy, math	1300	x9253
1942B	Bessie and MEX constructive algorithms, math	1100	x11989
1942A	Farmer John's Challenge constructive algorithms, math	800	x15292
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x25964
1941A	Rudolf and the Ticket brute force, math	800	x38377
1937A	Shuffle Party implementation, math	800	x21220
1936E	Yet Yet Another Permutation Problem divide and conquer, fft, math	3400	x93
1936B	Pinball binary search, data structures, implementation, math, two pointers	2000	x2366
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6456
1935E	Distance Learning Courses in MAC bitmasks, brute force, data structures, greedy, math	2400	x1146
1935D	Exam in MAC binary search, combinatorics, implementation, math	1800	x7216
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x5950
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x16352
1934A	Too Min Too Max greedy, math	800	x23100
1933G	Turtle Magic: Royal Turtle Shell Pattern bitmasks, brute force, combinatorics, constructive algorithms, dfs and similar, math	2300	x850
1933E	Turtle vs. Rabbit Race: Optimal Trainings binary search, implementation, math, ternary search	1500	x9532
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x17478
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x20203
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x29553
1933A	Turtle Puzzle: Rearrange and Negate greedy, math, sortings	800	x35038
1932G	Moving Platforms graphs, math, number theory, shortest paths	2300	x859
1932E	Final Countdown implementation, math, number theory	1600	x6608
1932C	LR-remainders brute force, data structures, implementation, math, two pointers	1400	x13413
1931G	One-Dimensional Puzzle combinatorics, math, number theory	2000	x2405
1931E	Anna and the Valentine's Day Gift games, greedy, math, sortings	1400	x13116
1931D	Divisible Pairs combinatorics, math, number theory	1300	x15617
1931C	Make Equal Again brute force, greedy, math	1000	x25770
1930E	2..3...4.... Wonderful! Wonderful! combinatorics, dp, math	2400	x974
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x13408
1929F	Sasha and the Wedding Binary Search Tree brute force, combinatorics, data structures, dfs and similar, math, trees	2300	x1604
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1476
1929D	Sasha and a Walk in the City combinatorics, dp, math, trees	1900	x4101
1929C	Sasha and the Casino binary search, brute force, constructive algorithms, games, greedy, math	1400	x13072
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x23611
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x28665
1928F	Digital Patterns combinatorics, data structures, implementation, math	2900	x206
1928E	Modular Sequence brute force, constructive algorithms, dp, graphs, greedy, math, number theory	2300	x1509
1928D	Lonely Mountain Dungeons brute force, data structures, greedy, math, ternary search	1900	x3695
1928C	Physical Education Lesson brute force, math, number theory	1600	x7370
1928A	Rectangle Cutting geometry, math	800	x20989
1927G	Paint Charges data structures, dp, greedy, math	2300	x1477
1927E	Klever Permutation constructive algorithms, math, two pointers	1400	x12231
1927C	Choose the Different Ones! brute force, greedy, math	1000	x25315
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x9793
1925D	Good Trip combinatorics, dp, math, probabilities	1900	x3185
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x18068
1924D	Balanced Subsequences combinatorics, dp, math	2700	x751
1924C	Fractal Origami geometry, math, matrices	2400	x1026
1924B	Space Harbour data structures, implementation, math, sortings	2100	x2253
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x6964
1922D	Berserk Monsters brute force, data structures, dsu, implementation, math	1900	x5142
1922C	Closest Cities greedy, implementation, math	1300	x16709
1922B	Forming Triangles combinatorics, constructive algorithms, math, sortings	1200	x18845
1921F	Sum of Progression brute force, data structures, dp, implementation, math	1900	x3405
1921E	Eat the Chip brute force, games, greedy, math	1600	x8823
1921C	Sending Messages greedy, math	900	x27087
1921A	Square greedy, math	800	x39633
1920E	Counting Binary Strings combinatorics, dp, math	2100	x2330
1920D	Array Repetition binary search, brute force, dsu, implementation, math	1900	x5055
1920C	Partitioning the Array brute force, math, number theory	1600	x11699

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