Problemset - Codeforces

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Educational Codeforces Round 168 (Rated for Div. 2)
28:08:49
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Problems

#	Name
1877A	Goals of Victory math	800	x21222
1873D	1D Eraser greedy, implementation, two pointers	800	x34130
1873C	Target Practice implementation, math	800	x38099
1873B	Good Kid brute force, greedy, math	800	x46767
1873A	Short Sort brute force, implementation	800	x51653
1872A	Two Vessels brute force, greedy, math	800	x38368
1870A	MEXanized Array constructive algorithms, greedy, math	800	x18849
1867A	green_gold_dog, array and permutation constructive algorithms, sortings	800	x19704
1866A	Ambitious Kid math	800	x20101
1864A	Increasing and Decreasing constructive algorithms, greedy, implementation, math	800	x20082
1863A	Channel greedy, implementation	800	x17787
1862B	Sequence Game constructive algorithms	800	x30539
1862A	Gift Carpet dp, greedy, implementation, strings	800	x31873
1861A	Prime Deletion constructive algorithms, math	800	x23601
1859A	United We Stand constructive algorithms, math, number theory	800	x30921
1858A	Buttons games, greedy, math	800	x36466
1857A	Array Coloring greedy, math	800	x45937
1856A	Tales of a Sort implementation	800	x26189
1855A	Dalton the Teacher greedy, math	800	x27629
1853A	Desorting brute force, greedy, math	800	x30196
1851B	Parity Sort greedy, sortings, two pointers	800	x28852
1851A	Escalator Conversations brute force, constructive algorithms, math	800	x29209
1850C	Word on the Paper implementation, strings	800	x42896
1850B	Ten Words of Wisdom implementation, sortings	800	x41857
1850A	To My Critics implementation, sortings	800	x53727
1849A	Morning Sandwich implementation, math	800	x27556
1847A	The Man who became a God greedy, sortings	800	x21880
1846B	Rudolph and Tic-Tac-Toe brute force, implementation, strings	800	x26593
1846A	Rudolph and Cut the Rope implementation, math	800	x32122
1845A	Forbidden Integer constructive algorithms, implementation, math, number theory	800	x26052
1844A	Subtraction Game constructive algorithms, games	800	x24310
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x32237
1843B	Long Long greedy, math, two pointers	800	x28619
1843A	Sasha and Array Coloring greedy, sortings, two pointers	800	x33734
1842A	Tenzing and Tsondu games, math	800	x19661
1841A	Game with Board constructive algorithms, games	800	x24512
1840A	Cipher Shifer implementation, strings, two pointers	800	x33520
1839A	The Good Array greedy, implementation, math	800	x17293
1838A	Blackboard List constructive algorithms, math	800	x21324
1837A	Grasshopper on a Line constructive algorithms, math	800	x30908
1836A	Destroyer implementation, sortings	800	x20091
1834A	Unit Array greedy, math	800	x23028
1833C	Vlad Building Beautiful Array greedy, math	800	x25869
1833A	Musical Puzzle implementation, strings	800	x32201
1832A	New Palindrome strings	800	x25259
1831A	Twin Permutations constructive algorithms	800	x25605
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x27916
1829B	Blank Space implementation	800	x43411
1829A	Love Story implementation, strings	800	x48594
1828A	Divisible Array constructive algorithms, math	800	x23403
1825A	LuoTianyi and the Palindrome String greedy, strings	800	x19494
1823A	A-characteristic combinatorics, constructive algorithms, math	800	x15992
1822C	Bun Lover math	800	x22677
1822B	Karina and Array greedy, math, sortings	800	x24497
1822A	TubeTube Feed brute force, implementation	800	x24010
1821A	Matching combinatorics, math	800	x19631
1820A	Yura's New Name implementation, strings	800	x16536
1818A	Politics greedy, implementation	800	x12823
1816A	Ian Visits Mary constructive algorithms, geometry, number theory	800	x17148
1814A	Coins implementation, math	800	x27207
1811A	Insert Digit greedy, math, strings	800	x30623
1810B	Candies constructive algorithms, math, number theory	800	x17340
1810A	Beautiful Sequence brute force, greedy	800	x20586
1809A	Garland implementation	800	x23698
1807C	Find and Replace greedy, implementation, strings	800	x29868
1807B	Grab the Candies greedy	800	x40906
1807A	Plus or Minus implementation	800	x58927
1806A	Walking Master geometry, greedy, math	800	x23528
1805B	The String Has a Target greedy, strings	800	x18404
1805A	We Need the Zero bitmasks, brute force	800	x22290
1804A	Lame King greedy, math	800	x17819
1802A	Likes greedy, implementation	800	x15653
1800A	Is It a Cat? implementation, strings	800	x30802
1799A	Recent Actions data structures, greedy, implementation, math	800	x11486
1798A	Showstopper greedy, implementation, sortings	800	x19532
1797A	Li Hua and Maze constructive algorithms, flows, graphs, greedy, implementation	800	x17207
1796A	Typical Interview Problem brute force, implementation, strings	800	x18708
1795A	Two Towers brute force, implementation, strings	800	x23454
1794A	Prefix and Suffix Array strings	800	x16947
1793A	Yet Another Promotion greedy, math	800	x17888
1792A	GamingForces greedy, sortings	800	x27764
1791C	Prepend and Append implementation, two pointers	800	x42967
1791B	Following Directions geometry, implementation	800	x43106
1791A	Codeforces Checking implementation, strings	800	x57911
1790B	Taisia and Dice greedy, greedy, math	800	x27062
1790A	Polycarp and the Day of Pi implementation, math, strings	800	x36437
1789B	Serval and Inversion Magic brute force, implementation, strings, two pointers	800	x16016
1789A	Serval and Mocha's Array brute force, math, number theory	800	x17962
1788A	One and Two brute force, implementation, math	800	x29047
1787A	Exponential Equation constructive algorithms, math	800	x18974
1786A2	Alternating Deck (hard version) implementation	800	x11316
1786A1	Non-alternating Deck (easy version) implementation	800	x13707
1783A	Make it Beautiful constructive algorithms, math, sortings	800	x28798
1781A	Parallel Projection geometry, math	800	x14997
1780A	Hayato and School constructive algorithms, greedy	800	x21331
1779A	Hall of Fame constructive algorithms, greedy, strings	800	x23031
1778A	Flip Flop Sum greedy, implementation	800	x23996
1777A	Everybody Likes Good Arrays! greedy, math	800	x23096
1776A	Walking Boy greedy	800	x6867
1775A1	Gardener and the Capybaras (easy version) brute force, constructive algorithms, implementation	800	x19502