Problemset - Codeforces

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Codeforces Round (Div. 2)
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Problems

#	Name
171G	Mysterious numbers - 2 *special problem	1600	x907
171F	ucyhf *special problem, brute force, implementation, number theory	1600	x1260
171E	MYSTERIOUS LANGUAGE *special problem	2000	x1431
171D	Broken checker *special problem, brute force	1300	x2545
171C	A Piece of Cake *special problem, implementation	2000	x1066
171B	Star *special problem, combinatorics	1300	x3986
171A	Mysterious numbers - 1 *special problem, constructive algorithms	1200	x4397
169B	Replacing Digits greedy	1100	x3216
169A	Chores sortings	800	x6621
168B	Wizards and Minimal Spell implementation, strings	1700	x1206
168A	Wizards and Demonstration implementation, math	900	x10402
167E	Wizards and Bets dfs and similar, graphs, math, matrices	2900	x550
167D	Wizards and Roads data structures, divide and conquer, graph matchings, graphs, greedy	3000	x192
167C	Wizards and Numbers games, math	2300	x658
167B	Wizards and Huge Prize dp, math, probabilities	1800	x2107
167A	Wizards and Trolleybuses implementation, math	1600	x2016
166E	Tetrahedron dp, math, matrices	1500	x20333
166D	Shoe Store dp, graph matchings, greedy, sortings, two pointers	2500	x349
166C	Median greedy, math, sortings	1500	x6387
166B	Polygons geometry, sortings	2100	x2353
166A	Rank List binary search, implementation, sortings	1100	x17123
165E	Compatible Numbers bitmasks, brute force, dfs and similar, dp	2200	x6367
165D	Beard Graph data structures, dsu, trees	2100	x1602
165C	Another Problem on Strings binary search, brute force, dp, math, strings, two pointers	1600	x12006
165B	Burning Midnight Oil binary search, implementation	1500	x16976
165A	Supercentral Point implementation	1000	x22986
164E	Polycarpus and Tasks	3100	x67
164D	Minimum Diameter binary search, brute force	3100	x230
164C	Machine Programming flows, graphs	2400	x887
164B	Ancient Berland Hieroglyphs two pointers	2000	x451
164A	Variable, or There and Back Again dfs and similar, graphs	1700	x987
163E	e-Government data structures, dfs and similar, dp, strings, trees	2800	x1549
163D	Large Refrigerator brute force	2900	x483
163C	Conveyor sortings, two pointers	2100	x538
163B	Lemmings binary search	2000	x1048
163A	Substring and Subsequence dp	1700	x2636
162J	Brackets *special problem	1800	x91
162I	Truncatable primes *special problem	2000	x75
162H	Alternating case *special problem	1800	x215
162G	Non-decimal sum *special problem	2000	x59
162F	Factorial zeros *special problem	1800	x197
162E	HQ9+ *special problem	1800	x175
162D	Remove digits *special problem	1900	x226
162C	Prime factorization *special problem	1800	x776
162B	Binary notation *special problem	1800	x309
162A	Pentagonal numbers *special problem, implementation	1100	x797
161E	Polycarpus the Safecracker brute force, dp	2500	x464
161D	Distance in Tree dfs and similar, dp, trees	1800	x13953
161C	Abracadabra divide and conquer	2400	x642
161B	Discounts constructive algorithms, greedy, sortings	1700	x1931
161A	Dress'em in Vests! binary search, brute force, greedy, two pointers	1300	x4710
160E	Buses and People binary search, data structures, sortings	2400	x579
160D	Edges in MST dfs and similar, dsu, graphs, sortings	2300	x2409
160C	Find Pair implementation, math, sortings	1700	x3391
160B	Unlucky Ticket greedy, sortings	1100	x13710
160A	Twins greedy, sortings	900	x113142
159E	Zebra Tower *special problem, data structures, greedy, sortings	1700	x994
159D	Palindrome pairs *special problem, brute force, dp, strings	1500	x4276
159C	String Manipulation 1.0 *special problem, binary search, brute force, data structures, strings	1400	x2940
159B	Matchmaker *special problem, greedy, sortings	1100	x3713
159A	Friends or Not *special problem, greedy, implementation	1400	x2464
158E	Phone Talks *special problem, dp, sortings	1900	x1453
158D	Ice Sculptures *special problem, brute force, number theory	1300	x6197
158C	Cd and pwd commands *special problem, data structures, implementation	1400	x8993
158B	Taxi *special problem, greedy, implementation	1100	x83971
158A	Next Round *special problem, implementation	800	x237648
157B	Trace geometry, sortings	1000	x12975
157A	Game Outcome brute force	800	x7464
156E	Mrs. Hudson's Pancakes brute force, dp	3000	x162
156D	Clues combinatorics, graphs	2500	x1501
156C	Cipher combinatorics, dp	2000	x2312
156B	Suspects constructive algorithms, data structures, implementation	1600	x2199
156A	Message brute force	1700	x3016
155B	Combination greedy, sortings	1100	x10084
155A	I_love_\%username\% brute force	800	x72248
154E	Martian Colony geometry	3000	x92
154D	Flatland Fencing games, math	2400	x420
154C	Double Profiles graphs, hashing, sortings	2300	x2714
154B	Colliders math, number theory	1600	x4379
154A	Hometask greedy	1600	x4008
153E	Euclidean Distance *special problem	2100	x75
153D	Date Change *special problem	2000	x82
153C	Caesar Cipher *special problem	2200	x370
153B	Binary notation *special problem	1800	x154
153A	A + B *special problem	1600	x766
152E	Garden bitmasks, dp, graphs, trees	2500	x466
152D	Frames brute force	2600	x240
152C	Pocket Book combinatorics	1400	x10423
152B	Steps binary search, implementation	1300	x6434
152A	Marks implementation	900	x16395
151B	Phone Numbers implementation, strings	1200	x6272
151A	Soft Drinking implementation, math	800	x68275
150E	Freezing with Style binary search, data structures, divide and conquer, trees	3000	x814
150D	Mission Impassable dp, strings	2600	x592
150C	Smart Cheater data structures, math, probabilities	2200	x638
150B	Quantity of Strings combinatorics, dfs and similar, graphs, math	1600	x4033
150A	Win or Freeze games, math, number theory	1400	x7641
149E	Martian Strings string suffix structures, strings	2300	x2050
149D	Coloring Brackets dp	1900	x3627
149C	Division into Teams greedy, math, sortings	1500	x5304