Problemset - Codeforces

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Educational Codeforces Round 189 (Rated for Div. 2)
2 days
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Problems

#	Name
2218C	The 67th Permutation Problem constructive algorithms, greedy, math	800	x24500
2218B	The 67th 6-7 Integer Problem greedy, math	800	x30965
2218A	The 67th Integer Problem brute force, games, implementation, math	800	x31920
2217A	The Equalizer math	800	x20315
2211A	Antimedian Deletion implementation, math	800	x15447
2210A	A Simple Sequence constructive algorithms, dp, greedy, number theory	800	x21400
2209A	Flip Flops greedy	800	x20872
2208A	Bingo Candies constructive algorithms, math	800	x19565
2207A	1-1 greedy, strings	800	x13304
2205B	Simons and Cakes for Success implementation, math, math	800	x15750
2205A	Simons and Making It Beautiful brute force, constructive algorithms, constructive algorithms, constructive algorithms, constructive algorithms, constructive algorithms, constructive algorithms	800	x16926
2204B	Right Maximum greedy	800	x18958
2204A	Passing the Ball brute force, implementation	800	x21194
2203A	Towers of Boxes math	800	x17501
2202A	Parkour Design math, math, math, math	800	x16105
2200B	Deletion Sort bitmasks, brute force, greedy, sortings	800	x24628
2200A	Eating Game greedy	800	x27146
2197A	Friendly Numbers binary search, brute force, expression parsing, math, schedules	800	x22616
2195A	Sieve of Erato67henes math, number theory	800	x34872
2194A	Lawn Mower greedy, math	800	x23569
2193B	Reverse a Permutation greedy	800	x29899
2193A	DBMB and the Array brute force, math	800	x42325
2192A	String Rotation Game brute force, strings	800	x17699
2191A	Array Coloring constructive algorithms	800	x27584
2189A	Table with Numbers greedy, implementation	800	x24237
2188A	Divisible Permutation constructive algorithms	800	x25729
2185B	Prefix Max greedy	800	x40149
2185A	Perfect Root constructive algorithms, math	800	x42495
2184A	Social Experiment math	800	x37725
2183A	Binary Array Game games	800	x23572
2182B	New Year Cake brute force	800	x23294
2182A	New Year String constructive algorithms, greedy, implementation, strings	800	x25165
2180B	Ashmal greedy, strings	800	x24459
2180A	Carnival Wheel brute force, number theory	800	x25768
2179B	Blackslex and Showering dp, greedy, implementation	800	x28171
2179A	Blackslex and Password math, strings	800	x34209
2178A	Yes or Yes greedy, strings	800	x25521
2176A	Operations with Inversions greedy, implementation, math	800	x28897
2175A	Little Fairy's Painting implementation	800	x18601
2173A	Sleeping Through Classes greedy, implementation	800	x23633
2172A	ASCII Art Contest implementation	800	x14410
2171A	Shizuku Hoshikawa and Farm Legs brute force, math	800	x36996
2170A	Maximum Neighborhood bitmasks, brute force, greedy, implementation, math	800	x19775
2167C	Isamatdin and His Magic Wand! constructive algorithms, greedy, implementation, sortings	800	x35829
2167B	Your Name sortings, strings	800	x51331
2167A	Square? math, sortings	800	x57761
2166A	Same Difference brute force, greedy, strings	800	x22761
2164A	Sequence Game brute force, sortings	800	x20697
2163A	Souvlaki VS. Kalamaki brute force, greedy, math, sortings	800	x19496
2162A	Beautiful Average brute force, greedy	800	x41341
2161A	Round Trip games, greedy, implementation, math	800	x15659
2160A	MEX Partition math	800	x22360
2158A	Suspension constructive algorithms, greedy, math	800	x23231
2157A	Dungeon Equilibrium greedy, implementation, sortings	800	x16382
2156A	Pizza Time brute force, constructive algorithms, greedy	800	x26726
2155A	El fucho implementation, math	800	x25073
2154A	Notelock greedy, two pointers	800	x23052
2153B	Bitwise Reversion bitmasks, greedy	800	x22511
2153A	Circle of Apple Trees greedy, sortings	800	x26282
2152A	Increase or Smash greedy, implementation	800	x22228
2151A	Incremental Subarray math, strings	800	x17904
2149B	Unconventional Pairs greedy, sortings	800	x32897
2149A	Be Positive math	800	x40675
2148B	Lasers geometry	800	x32867
2148A	Sublime Sequence brute force, hashing, math	800	x47027
2147A	Shortest Increasing Path constructive algorithms, greedy	800	x18554
2146A	Equal Occurrences brute force, greedy, implementation	800	x21749
2145A	Candies for Nephews math	800	x30595
2144A	Cut the Array brute force, constructive algorithms, math, number theory	800	x21619
2143A	All Lengths Subtraction brute force, two pointers	800	x20642
2141A	Furniture Store *special problem, implementation	800	x1599
2140A	Shift Sort greedy, sortings	800	x22184
2139B	Cake Collection greedy	800	x20763
2139A	Maple and Multiplication greedy, math	800	x25738
2137A	Collatz Conjecture constructive algorithms, math	800	x35150
2136A	In the Dream greedy, math	800	x26024
2134A	Painting With Two Colors constructive algorithms, implementation, math	800	x26476
2133B	Villagers greedy	800	x25459
2133A	Redstone? brute force, data structures, implementation, math	800	x30863
2132A	Homework brute force, implementation, strings	800	x43136
2131B	Alternating Series constructive algorithms, greedy, math	800	x30853
2131A	Lever math	800	x38730
2130A	Submission is All You Need greedy, math	800	x28460
2128A	Recycling Center greedy, sortings	800	x28424
2127A	Mix Mex Max constructive algorithms, greedy, math	800	x19579
2126B	No Casino in the Mountains dp, greedy	800	x37522
2126A	Only One Digit brute force, implementation, math	800	x50813
2125A	Difficult Contest constructive algorithms, implementation, sortings, strings	800	x27887
2124A	Deranged Deletions greedy, sortings	800	x19139
2123B	Tournament greedy	800	x34766
2123A	Blackboard Game math	800	x41514
2122A	Greedy Grid constructive algorithms, greedy	800	x19147
2121B	Above the Clouds constructive algorithms, greedy, strings	800	x32429
2121A	Letter Home brute force, math	800	x39142
2120A	Square of Rectangles geometry, math	800	x20222
2119A	Add or XOR bitmasks, greedy, math	800	x27053
2118A	Equal Subsequences constructive algorithms, greedy	800	x29035
2117B	Shrink constructive algorithms	800	x32060
2117A	False Alarm greedy, implementation	800	x37853
2116A	Gellyfish and Tricolor Pansy games, greedy	800	x26865

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