Problemset - Codeforces

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Codeforces Round 998 (Div. 3)
12:11:46
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Problems

#	Name
2014H	Robin Hood Archery data structures, divide and conquer, greedy, hashing	1900	x3803
2014G	Milky Days brute force, data structures, greedy, implementation	2200	x1368
2014F	Sheriff's Defense dfs and similar, dp, greedy, trees	2000	x3813
2014E	Rendez-vous de Marian et Robin dfs and similar, graphs, shortest paths	1800	x5935
2014D	Robert Hood and Mrs Hood brute force, data structures, greedy, sortings	1400	x12752
2014C	Robin Hood in Town binary search, greedy, math	1100	x22656
2014B	Robin Hood and the Major Oak math	800	x29392
2014A	Robin Helps greedy, implementation	800	x38845
2013F2	Game in Tree (Hard Version) binary search, data structures, trees	3500	x111
2013F1	Game in Tree (Easy Version) binary search, brute force, data structures, dp, games, greedy, implementation, trees	2700	x507
2013E	Prefix GCD brute force, dp, greedy, math, number theory	2200	x3384
2013D	Minimize the Difference binary search, greedy	1900	x6319
2013C	Password Cracking constructive algorithms, interactive, strings	1400	x12155
2013B	Battle for Survive constructive algorithms, greedy, math	900	x24171
2013A	Zhan's Blender constructive algorithms, math	800	x28202
2011I	Stack and Queue *special problem, data structures, divide and conquer		x15
2011H	Strange Matrix *special problem, graphs, greedy		x47
2011G	Removal of a Permutation *special problem		x39
2011F	Good Subarray *special problem, data structures, greedy		x117
2011E	Rock-Paper-Scissors Bot *special problem, greedy, strings		x162
2011D	Among Wolves *special problem		x261
2011C	Split the Expression *special problem		x351
2011B	Shuffle *special problem		x629
2011A	Problem Solving *special problem		x1029
2010C2	Message Transmission Error (hard version) hashing, string suffix structures, strings, two pointers	1700	x3426
2010C1	Message Transmission Error (easy version) brute force, strings	1400	x7439
2010B	Three Brothers brute force, implementation, math	800	x20898
2010A	Alternating Sum of Numbers brute force, implementation, math	800	x17682
2009G3	Yunli's Subarray Queries (extreme version) data structures, dp, implementation	2700	x364
2009G2	Yunli's Subarray Queries (hard version) binary search, data structures, dp	2200	x1312
2009G1	Yunli's Subarray Queries (easy version) binary search, data structures, two pointers	1900	x4029
2009F	Firefly's Queries bitmasks, data structures, flows, math	1700	x6976
2009E	Klee's SUPER DUPER LARGE Array!!! binary search, math, ternary search	1400	x14231
2009D	Satyam and Counting geometry, math	1400	x15355
2009C	The Legend of Freya the Frog implementation, math	1100	x27691
2009B	osu!mania brute force, implementation	800	x44515
2009A	Minimize! brute force, math	800	x55593
2008H	Sakurako's Test binary search, brute force, greedy, math, number theory	2100	x3020
2008G	Sakurako's Task binary search, greedy, math, number theory	1800	x5443
2008F	Sakurako's Box combinatorics, math, number theory	1400	x13083
2008E	Alternating String brute force, data structures, dp, greedy, implementation, strings	1500	x10632
2008D	Sakurako's Hobby dp, dsu, graphs, math	1100	x19981
2008C	Longest Good Array binary search, brute force, math	800	x31602
2008B	Square or Not brute force, math, strings	800	x29543
2008A	Sakurako's Exam brute force, constructive algorithms, greedy, math	800	x36524
2007C	Dora and C++ math, number theory	1500	x12905
2007B	Index and Maximum Value data structures, greedy	900	x22043
2007A	Dora's Set greedy, math, number theory	800	x23233
2006F	Dora's Paint brute force, combinatorics, constructive algorithms, graphs, implementation	3500	x123
2006E	Iris's Full Binary Tree brute force, data structures, dfs and similar, trees	3100	x237
2006D	Iris and Adjacent Products data structures, greedy, implementation, math	2600	x728
2006C	Eri and Expanded Sets data structures, divide and conquer, math, number theory, two pointers	2300	x1734
2006B	Iris and the Tree brute force, data structures, dfs and similar, dsu, math, trees	1800	x3512
2006A	Iris and Game on the Tree constructive algorithms, dfs and similar, games, graphs, greedy, trees	1700	x7052
2005E2	Subtangle Game (Hard Version) data structures, dp, games, greedy, implementation	2500	x845
2005E1	Subtangle Game (Easy Version) dp, games, greedy, implementation	2100	x2831
2005D	Alter the GCD binary search, brute force, data structures, divide and conquer, implementation, number theory	2400	x924
2005C	Lazy Narek dp, implementation, strings	1800	x7316
2005B2	The Strict Teacher (Hard Version) binary search, greedy, math, sortings	1200	x18172
2005B1	The Strict Teacher (Easy Version) greedy, math, sortings	1000	x21195
2005A	Simple Palindrome combinatorics, constructive algorithms, greedy, math	900	x22608
2004G	Substring Compression data structures, dp, matrices	3200	x333
2004F	Make a Palindrome binary search, brute force, data structures, greedy, math	2600	x1225
2004E	Not a Nim Problem brute force, games, math, number theory	2100	x4201
2004D	Colored Portals binary search, brute force, data structures, graphs, greedy, implementation, shortest paths	1600	x11162
2004C	Splitting Items games, greedy, sortings	1100	x24058
2004B	Game with Doors brute force, greedy	1000	x27178
2004A	Closest Point implementation, math	800	x30920
2003F	Turtle and Three Sequences brute force, data structures, dp, greedy, math, probabilities, two pointers	2800	x505
2003E2	Turtle and Inversions (Hard Version) brute force, data structures, divide and conquer, dp, greedy, math, two pointers	2700	x539
2003E1	Turtle and Inversions (Easy Version) brute force, divide and conquer, dp, greedy, math	2600	x750
2003D2	Turtle and a MEX Problem (Hard Version) dfs and similar, dp, graphs, greedy, implementation, math	2100	x4107
2003D1	Turtle and a MEX Problem (Easy Version) greedy, math	1500	x11584
2003C	Turtle and Good Pairs constructive algorithms, greedy, sortings, strings	1200	x19007
2003B	Turtle and Piggy Are Playing a Game 2 games, greedy, sortings	800	x25737
2003A	Turtle and Good Strings greedy, strings	800	x29779
2002H	Counting 101 greedy	3500	x78
2002G	Lattice Optimizing bitmasks, brute force, hashing, meet-in-the-middle	3400	x225
2002F2	Court Blue (Hard Version) brute force, dp, math, number theory	2800	x451
2002F1	Court Blue (Easy Version) brute force, dfs and similar, dp, math, number theory	2600	x858
2002E	Cosmic Rays brute force, data structures, dp	2300	x2530
2002D2	DFS Checker (Hard Version) binary search, data structures, dfs and similar, graphs, hashing, trees	2300	x2502
2002D1	DFS Checker (Easy Version) brute force, data structures, dfs and similar, graphs, hashing, trees	1900	x4458
2002C	Black Circles brute force, geometry, greedy, math	1200	x15583
2002B	Removals Game constructive algorithms, games	1000	x19736
2002A	Distanced Coloring constructive algorithms, implementation, math	800	x19841
2001E2	Deterministic Heap (Hard Version) combinatorics, dp, trees	2900	x232
2001E1	Deterministic Heap (Easy Version) combinatorics, dp, math, trees	2400	x1334
2001D	Longest Max Min Subsequence brute force, constructive algorithms, data structures, greedy, implementation	1900	x5217
2001C	Guess The Tree binary search, brute force, dfs and similar, divide and conquer, dsu, greedy, interactive, trees	1500	x11034
2001B	Generate Permutation constructive algorithms	800	x24447
2001A	Make All Equal greedy, implementation	800	x30286
2000H	Ksyusha and the Loaded Set binary search, brute force, data structures, implementation	2200	x1744
2000G	Call During the Journey binary search, brute force, graphs, greedy, shortest paths	2100	x2463
2000F	Color Rows and Columns dp, greedy, implementation, math	1900	x5576
2000E	Photoshoot for Gorillas combinatorics, data structures, greedy, math	1400	x13780
2000D	Right Left Wrong greedy, implementation, two pointers	1200	x24013
2000C	Numeric String Template data structures, strings	1000	x26611
2000B	Seating in a Bus two pointers	800	x35012
2000A	Primary Task implementation, math, strings	800	x38649