Problemset - Codeforces

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Educational Codeforces Round 167 (Rated for Div. 2)
11:44:44
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Problems

#	Name
1985E	Secret Box brute force, combinatorics, math	1200	x15824
1985D	Manhattan Circle implementation, math	900	x28041
1985C	Good Prefixes greedy	1000	x25297
1985B	Maximum Multiple Sum brute force, math, number theory	800	x36616
1985A	Creating Words implementation, strings	800	x40642
1984C1	Magnitude (Easy Version) dp, greedy, math	1300	x13021
1984B	Large Addition implementation, math	1100	x15074
1984A	Strange Splitting constructive algorithms	800	x18063
1981B	Turtle and an Infinite Sequence bitmasks, math	1300	x11337
1981A	Turtle and Piggy Are Playing a Game brute force, greedy, math	800	x19338
1980C	Sofia and the Lost Operations constructive algorithms, greedy	1300	x15861
1980B	Choosing Cubes sortings, sortings	800	x30641
1980A	Problem Generator math	800	x35500
1979C	Earning on Bets binary search, combinatorics, constructive algorithms, number theory	1200	x15833
1979B	XOR Sequences bitmasks, greedy	1000	x19604
1979A	Guess the Maximum brute force, greedy, implementation	800	x25681
1978C	Manhattan Permutations constructive algorithms, data structures, greedy, implementation, math	1300	x11450
1978B	New Bakery binary search, greedy, math, ternary search	800	x18271
1978A	Alice and Books constructive algorithms, greedy, sortings	800	x20799
1977B	Binary Colouring bitmasks, constructive algorithms, greedy, math	1100	x15590
1977A	Little Nikita math	800	x27106
1976B	Increase/Decrease/Copy greedy, implementation	1100	x19273
1976A	Verify Password implementation, sortings, strings	800	x24849
1975C	Chamo and Mocha's Array binary search, brute force, greedy	1200	x12341
1975B	378QAQ and Mocha's Array brute force, greedy, math, sortings	1000	x15224
1975A	Bazoka and Mocha's Array brute force, greedy, implementation, sortings	800	x16813
1974B	Symmetric Encoding implementation, sortings, strings	800	x27646
1974A	Phone Desktop greedy, math	800	x30175
1973B	Cat, Fox and the Lonely Array binary search, bitmasks, data structures, greedy, math, two pointers	1300	x12280
1973A	Chess For Three brute force, dp, implementation, math	900	x21549
1972B	Coin Games games	900	x18942
1972A	Contest Proposal brute force, greedy, two pointers	800	x20805
1971D	Binary Cut dp, greedy, implementation, sortings, strings	1100	x22753
1971C	Clock and Strings implementation	900	x28483
1971B	Different String implementation, strings	800	x32288
1971A	My First Sorting Problem implementation, sortings	800	x39022
1970A1	Balanced Shuffle (Easy) implementation, sortings	1000	x3392
1969B	Shifts and Sorting constructive algorithms, greedy	1000	x16689
1969A	Two Friends constructive algorithms, implementation, math	800	x18193
1968D	Permutation Game brute force, dfs and similar, games, graphs, greedy, math	1300	x13277
1968C	Assembly via Remainders constructive algorithms, number theory	1000	x22218
1968B	Prefiquence greedy, two pointers	800	x25616
1968A	Maximize? brute force, math, number theory	800	x30491
1966B	Rectangle Filling constructive algorithms, implementation	1100	x13371
1966A	Card Exchange constructive algorithms, games, greedy	800	x16288
1958A	1-3-5 *special problem, dp	1100	x1305
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation	1100	x16403
1957A	Stickogon constructive algorithms, greedy	800	x21592
1956B	Nene and the Card Game games, greedy	800	x20024
1956A	Nene's Game binary search, brute force, data structures, games, greedy	800	x20212
1955C	Inhabitant of the Deep Sea greedy, implementation, math	1300	x19283
1955B	Progressive Square constructive algorithms, data structures, implementation, sortings	1000	x25509
1955A	Yogurt Sale math	800	x39291
1954C	Long Multiplication greedy, math, number theory	1200	x17433
1954B	Make It Ugly implementation, math	1200	x16867
1954A	Painting the Ribbon constructive algorithms, greedy, math	900	x21987
1951B	Battle Cows binary search, data structures, greedy	1200	x13238
1951A	Dual Trigger constructive algorithms, greedy, math	900	x17994
1950D	Product of Binary Decimals brute force, dp, implementation, number theory	1100	x21495
1950C	Clock Conversion implementation, math	800	x36896
1950B	Upscaling implementation	800	x35228
1950A	Stair, Peak, or Neither? implementation	800	x46837
1948C	Arrow Path brute force, constructive algorithms, dfs and similar, dp, graphs, shortest paths	1300	x15293
1948B	Array Fix brute force, dp, greedy, implementation	1100	x21373
1948A	Special Characters brute force, constructive algorithms	800	x27188
1946B	Maximum Sum dp, greedy, math	1100	x18913
1946A	Median of an Array greedy, implementation, sortings	800	x24682
1945D	Seraphim the Owl dp, greedy	1300	x13084
1945C	Left and Right Houses brute force	1200	x13711
1945B	Fireworks math, number theory	900	x20926
1945A	Setting up Camp greedy, math	800	x26031
1944B	Equal XOR bitmasks, constructive algorithms	1100	x15101
1944A	Destroying Bridges graphs, greedy, math	800	x22226
1943A	MEX Game 1 games, greedy	1300	x16296
1942C1	Bessie's Birthday Cake (Easy Version) geometry, greedy, math	1300	x10097
1942B	Bessie and MEX constructive algorithms, math	1100	x12940
1942A	Farmer John's Challenge constructive algorithms, math	800	x16340
1941D	Rudolf and the Ball Game dfs and similar, dp, implementation	1200	x17295
1941C	Rudolf and the Ugly String dp, greedy, strings	900	x31037
1941B	Rudolf and 121 brute force, dp, greedy, math	1000	x27651
1941A	Rudolf and the Ticket brute force, math	800	x40271
1937B	Binary Path dp, greedy, implementation	1300	x13793
1937A	Shuffle Party implementation, math	800	x22138
1935B	Informatics in MAC constructive algorithms	1200	x17231
1935A	Entertainment in MAC constructive algorithms, strings	800	x26432
1934B	Yet Another Coin Problem brute force, dp, greedy, math	1200	x17447
1934A	Too Min Too Max greedy, math	800	x24183
1933D	Turtle Tenacity: Continual Mods constructive algorithms, greedy, math, number theory, sortings	1200	x18657
1933C	Turtle Fingers: Count the Values of k brute force, implementation, math, number theory	1100	x21339
1933B	Turtle Math: Fast Three Task implementation, math, number theory	800	x30923
1933A	Turtle Puzzle: Rearrange and Negate greedy, math, sortings	800	x36506
1932B	Chaya Calendar number theory	1100	x19330
1932A	Thorns and Coins dp, greedy, implementation	800	x27820
1931D	Divisible Pairs combinatorics, math, number theory	1300	x16821
1931C	Make Equal Again brute force, greedy, math	1000	x27134
1931B	Make Equal greedy	800	x30839
1931A	Recovering a Small String brute force, strings	800	x34441
1930B	Permutation Printing brute force, constructive algorithms, math	1000	x14209
1930A	Maximise The Score greedy, sortings	800	x17718
1929B	Sasha and the Drawing constructive algorithms, greedy, math	800	x24305

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