Problemset - Codeforces

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Codeforces Round (Div. 2)
6 days

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Problems

#	Name
168A	Wizards and Demonstration implementation, math	900	x10399
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	x2105
167A	Wizards and Trolleybuses implementation, math	1600	x2016
166E	Tetrahedron dp, math, matrices	1500	x20309
166D	Shoe Store dp, graph matchings, greedy, sortings, two pointers	2500	x348
166C	Median greedy, math, sortings	1500	x6385
166B	Polygons geometry, sortings	2100	x2353
166A	Rank List binary search, implementation, sortings	1100	x17085
165E	Compatible Numbers bitmasks, brute force, dfs and similar, dp	2200	x6361
165D	Beard Graph data structures, dsu, trees	2100	x1600
165C	Another Problem on Strings binary search, brute force, dp, math, strings, two pointers	1600	x12003
165B	Burning Midnight Oil binary search, implementation	1500	x16950
165A	Supercentral Point implementation	1000	x22968
164E	Polycarpus and Tasks	3100	x67
164D	Minimum Diameter binary search, brute force	3100	x230
164C	Machine Programming flows, graphs	2400	x878
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	x1547
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	x2634
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	x463
161D	Distance in Tree dfs and similar, dp, trees	1800	x13932
161C	Abracadabra divide and conquer	2400	x641
161B	Discounts constructive algorithms, greedy, sortings	1700	x1931
161A	Dress'em in Vests! binary search, brute force, greedy, two pointers	1300	x4709
160E	Buses and People binary search, data structures, sortings	2400	x579
160D	Edges in MST dfs and similar, dsu, graphs, sortings	2300	x2407
160C	Find Pair implementation, math, sortings	1700	x3391
160B	Unlucky Ticket greedy, sortings	1100	x13704
160A	Twins greedy, sortings	900	x113048
159E	Zebra Tower *special problem, data structures, greedy, sortings	1700	x994
159D	Palindrome pairs *special problem, brute force, dp, strings	1500	x4274
159C	String Manipulation 1.0 *special problem, binary search, brute force, data structures, strings	1400	x2940
159B	Matchmaker *special problem, greedy, sortings	1100	x3711
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	x8991
158B	Taxi *special problem, greedy, implementation	1100	x83897
158A	Next Round *special problem, implementation	800	x237468
157B	Trace geometry, sortings	1000	x12970
157A	Game Outcome brute force	800	x7460
156E	Mrs. Hudson's Pancakes brute force, dp	3000	x161
156D	Clues combinatorics, graphs	2500	x1500
156C	Cipher combinatorics, dp	2000	x2310
156B	Suspects constructive algorithms, data structures, implementation	1600	x2198
156A	Message brute force	1700	x3015
155B	Combination greedy, sortings	1100	x10080
155A	I_love_\%username\% brute force	800	x72174
154E	Martian Colony geometry	3000	x92
154D	Flatland Fencing games, math	2400	x420
154C	Double Profiles graphs, hashing, sortings	2300	x2713
154B	Colliders math, number theory	1600	x4376
154A	Hometask greedy	1600	x4007
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	x765
152E	Garden bitmasks, dp, graphs, trees	2500	x466
152D	Frames brute force	2600	x240
152C	Pocket Book combinatorics	1400	x10419
152B	Steps binary search, implementation	1300	x6424
152A	Marks implementation	900	x16381
151B	Phone Numbers implementation, strings	1200	x6271
151A	Soft Drinking implementation, math	800	x68162
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	x636
150B	Quantity of Strings combinatorics, dfs and similar, graphs, math	1600	x4028
150A	Win or Freeze games, math, number theory	1400	x7633
149E	Martian Strings string suffix structures, strings	2300	x2050
149D	Coloring Brackets dp	1900	x3623
149C	Division into Teams greedy, math, sortings	1500	x5302
149B	Martian Clock implementation	1600	x2235
149A	Business trip greedy, implementation, sortings	900	x38441
148E	Porcelain dp	1900	x3837
148D	Bag of mice dp, games, math, probabilities	1800	x6889
148C	Terse princess constructive algorithms, greedy	1700	x3079
148B	Escape implementation, math	1500	x5333
148A	Insomnia cure constructive algorithms, implementation, math	800	x88951
147B	Smile House binary search, graphs, matrices	2500	x755
147A	Punctuation implementation, strings	1300	x3573
146B	Lucky Mask brute force, implementation	1300	x4276