Problemset - Codeforces

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Codeforces Round 987 (Div. 2)
31:20:33
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Problems

#	Name
1985C	Good Prefixes greedy	1000	x32323
1985B	Maximum Multiple Sum brute force, math, number theory	800	x46242
1985A	Creating Words implementation, strings	800	x53714
1984B	Large Addition implementation, math	1100	x18286
1984A	Strange Splitting constructive algorithms	800	x21144
1983B	Corner Twist constructive algorithms, greedy, implementation, math	1200	x16092
1983A	Array Divisibility constructive algorithms, math	800	x25623
1982C	Boring Day binary search, data structures, dp, greedy, two pointers	1200	x17531
1982B	Collatz Conjecture brute force, implementation, math, number theory	1200	x16950
1982A	Soccer greedy, implementation, math, sortings	800	x25110
1981A	Turtle and Piggy Are Playing a Game brute force, greedy, math	800	x22279
1980B	Choosing Cubes sortings, sortings	800	x34671
1980A	Problem Generator math	800	x40618
1979C	Earning on Bets binary search, combinatorics, constructive algorithms, number theory	1200	x18775
1979B	XOR Sequences bitmasks, greedy	1000	x22594
1979A	Guess the Maximum brute force, greedy, implementation	800	x29030
1978B	New Bakery binary search, greedy, math, ternary search	800	x22346
1978A	Alice and Books constructive algorithms, greedy, sortings	800	x25679
1977B	Binary Colouring bitmasks, constructive algorithms, greedy, math	1100	x17640
1977A	Little Nikita math	800	x32108
1976B	Increase/Decrease/Copy greedy, implementation	1100	x22266
1976A	Verify Password implementation, sortings, strings	800	x28567
1975C	Chamo and Mocha's Array binary search, brute force, greedy	1200	x14556
1975B	378QAQ and Mocha's Array brute force, greedy, math, sortings	1000	x17848
1975A	Bazoka and Mocha's Array brute force, greedy, implementation, sortings	800	x18492
1974B	Symmetric Encoding implementation, sortings, strings	800	x30238
1974A	Phone Desktop greedy, math	800	x33230
1973A	Chess For Three brute force, dp, implementation, math	900	x24559
1972B	Coin Games games	900	x21599
1972A	Contest Proposal brute force, greedy, two pointers	800	x22941
1971D	Binary Cut dp, greedy, implementation, sortings, strings	1100	x25904
1971C	Clock and Strings implementation	900	x33048
1971B	Different String implementation, strings	800	x36953
1971A	My First Sorting Problem implementation, sortings	800	x45191
1970A1	Balanced Shuffle (Easy) implementation, sortings	1000	x4784
1969B	Shifts and Sorting constructive algorithms, greedy	1000	x19092
1969A	Two Friends constructive algorithms, implementation, math	800	x19957
1968C	Assembly via Remainders constructive algorithms, number theory	1000	x25051
1968B	Prefiquence greedy, two pointers	800	x27928
1968A	Maximize? brute force, math, number theory	800	x34606
1966B	Rectangle Filling constructive algorithms, implementation	1100	x15014
1966A	Card Exchange constructive algorithms, games, greedy	800	x17904
1958A	1-3-5 *special problem, dp	1100	x1968
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation	1100	x17977
1957A	Stickogon constructive algorithms, greedy	800	x23349
1956B	Nene and the Card Game games, greedy	800	x21268
1956A	Nene's Game binary search, brute force, data structures, games, greedy	800	x21725
1955B	Progressive Square constructive algorithms, data structures, implementation, sortings	1000	x28012
1955A	Yogurt Sale math	800	x43666
1954C	Long Multiplication greedy, math, number theory	1200	x19501
1954B	Make It Ugly implementation, math	1200	x18643
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x24224
1951B	Battle Cows binary search, data structures, greedy	1200	x14667
1951A	Dual Trigger constructive algorithms, greedy, math	900	x19777
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x23264
1950C	Clock Conversion implementation, math	800	x40087
1950B	Upscaling implementation	800	x38172
1950A	Stair, Peak, or Neither? implementation	800	x53146
1948B	Array Fix brute force, dp, greedy, implementation	1100	x23023
1948A	Special Characters brute force, constructive algorithms	800	x28596
1946B	Maximum Sum dp, greedy, math	1100	x20511
1946A	Median of an Array greedy, implementation, sortings	800	x26118
1945C	Left and Right Houses brute force	1200	x14999
1945B	Fireworks math, number theory	900	x22784
1945A	Setting up Camp greedy, math	800	x27735
1944B	Equal XOR bitmasks, constructive algorithms	1100	x16258
1944A	Destroying Bridges graphs, greedy, math	800	x23833
1942B	Bessie and MEX constructive algorithms, math	1100	x13993
1942A	Farmer John's Challenge constructive algorithms, math	800	x17272
1941D	Rudolf and the Ball Game dfs and similar, dp, implementation	1200	x18441
1941C	Rudolf and the Ugly String dp, greedy, strings	900	x33512
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x29961
1941A	Rudolf and the Ticket brute force, math	800	x42597
1937A	Shuffle Party implementation, math	800	x23198
1935B	Informatics in MAC constructive algorithms	1200	x18647
1935A	Entertainment in MAC constructive algorithms, strings	800	x28023
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x19039
1934A	Too Min Too Max greedy, math	800	x25481
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x20382
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x22737
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x33021
1933A	Turtle Puzzle: Rearrange and Negate greedy, math, sortings	800	x38297
1932B	Chaya Calendar number theory	1100	x20902
1932A	Thorns and Coins dp, greedy, implementation	800	x29774
1931C	Make Equal Again brute force, greedy, math	1000	x29326
1931B	Make Equal greedy	800	x32334
1931A	Recovering a Small String brute force, strings	800	x36349
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x15395
1930A	Maximise The Score greedy, sortings	800	x18672
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x25389
1929A	Sasha and the Beautiful Array constructive algorithms, greedy, math, sortings	800	x31681
1928B	Equalize binary search, greedy, sortings, two pointers	1200	x17665
1928A	Rectangle Cutting geometry, math	800	x22748
1927C	Choose the Different Ones! brute force, greedy, math	1000	x28163
1927B	Following the String constructive algorithms, greedy, strings	900	x33443
1927A	Make it White greedy, strings	800	x43815
1926C	Vlad and a Sum of Sum of Digits dp, implementation	1200	x26935
1926B	Vlad and Shapes geometry, implementation	800	x32651
1926A	Vlad and the Best of Five implementation	800	x48816
1925B	A Balanced Problemset? brute force, greedy, math, number theory	1200	x20250