Problemset - Codeforces

→ Pay attention

Before contest
CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
17:27:02
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
175A	Robot Bicorn Attack brute force, implementation	1400	x2403
174C	Range Increments data structures, greedy	1800	x1102
174B	File List dp, greedy, implementation	1400	x2253
174A	Problem About Equation math	1100	x2906
173E	Camping Groups data structures, sortings	2600	x564
173D	Deputies constructive algorithms, graphs, greedy, implementation	2500	x250
173C	Spiral Maximum brute force, dp	1900	x989
173B	Chamber of Secrets dfs and similar, shortest paths	1800	x3174
173A	Rock-Paper-Scissors implementation, math	1300	x2301
172E	BHTML+BCSS *special problem, dfs and similar, expression parsing	2200	x271
172D	Calendar Reform *special problem, number theory	1500	x1402
172C	Bus *special problem, implementation, sortings	1500	x1147
172B	Pseudorandom Sequence Period *special problem, implementation, number theory	1200	x2790
172A	Phone Code *special problem, brute force, implementation	800	x6168
171H	A polyline *special problem, implementation	1700	x282
171G	Mysterious numbers - 2 *special problem	1600	x933
171F	ucyhf *special problem, brute force, implementation, number theory	1600	x1284
171E	MYSTERIOUS LANGUAGE *special problem	2000	x1466
171D	Broken checker *special problem, brute force	1300	x2580
171C	A Piece of Cake *special problem, implementation	2000	x1095
171B	Star *special problem, combinatorics	1300	x4074
171A	Mysterious numbers - 1 *special problem, constructive algorithms	1200	x4487
169B	Replacing Digits greedy	1100	x3317
169A	Chores sortings	800	x6986
168B	Wizards and Minimal Spell implementation, strings	1700	x1223
168A	Wizards and Demonstration implementation, math	900	x10638
167E	Wizards and Bets dfs and similar, graphs, math, matrices	2900	x580
167D	Wizards and Roads data structures, divide and conquer, graph matchings, graphs, greedy	3000	x197
167C	Wizards and Numbers games, math	2300	x674
167B	Wizards and Huge Prize dp, math, probabilities	1800	x2169
167A	Wizards and Trolleybuses implementation, math	1600	x2044
166E	Tetrahedron dp, math, matrices	1500	x21329
166D	Shoe Store dp, graph matchings, greedy, sortings, two pointers	2500	x364
166C	Median greedy, math, sortings	1500	x6532
166B	Polygons geometry, sortings	2100	x2485
166A	Rank List binary search, implementation, sortings	1100	x17868
165E	Compatible Numbers bitmasks, brute force, dfs and similar, dp	2200	x6991
165D	Beard Graph data structures, dsu, trees	2100	x1672
165C	Another Problem on Strings binary search, brute force, dp, math, strings, two pointers	1600	x12370
165B	Burning Midnight Oil binary search, implementation	1500	x18213
165A	Supercentral Point implementation	1000	x23692
164E	Polycarpus and Tasks	3100	x67
164D	Minimum Diameter binary search, brute force	3100	x244
164C	Machine Programming flows, graphs	2400	x901
164B	Ancient Berland Hieroglyphs two pointers	2000	x472
164A	Variable, or There and Back Again dfs and similar, graphs	1700	x1018
163E	e-Government data structures, dfs and similar, dp, strings, trees	2800	x1735
163D	Large Refrigerator brute force	2900	x507
163C	Conveyor sortings, two pointers	2100	x557
163B	Lemmings binary search	2000	x1066
163A	Substring and Subsequence dp	1700	x2715
162J	Brackets *special problem	1800	x96
162I	Truncatable primes *special problem	2000	x77
162H	Alternating case *special problem	1800	x220
162G	Non-decimal sum *special problem	2000	x65
162F	Factorial zeros *special problem	1800	x202
162E	HQ9+ *special problem	1800	x178
162D	Remove digits *special problem	1900	x228
162C	Prime factorization *special problem	1800	x817
162B	Binary notation *special problem	1800	x313
162A	Pentagonal numbers *special problem, implementation	1100	x805
161E	Polycarpus the Safecracker brute force, dp	2500	x469
161D	Distance in Tree dfs and similar, dp, trees	1800	x15148
161C	Abracadabra divide and conquer	2400	x653
161B	Discounts constructive algorithms, greedy, sortings	1700	x1960
161A	Dress'em in Vests! binary search, brute force, greedy, two pointers	1300	x4923
160E	Buses and People binary search, data structures, sortings	2400	x592
160D	Edges in MST dfs and similar, dsu, graphs, sortings	2300	x2792
160C	Find Pair implementation, math, sortings	1700	x3458
160B	Unlucky Ticket greedy, sortings	1100	x14133
160A	Twins greedy, sortings	900	x119411
159E	Zebra Tower *special problem, data structures, greedy, sortings	1700	x1001
159D	Palindrome pairs *special problem, brute force, dp, strings	1500	x4324
159C	String Manipulation 1.0 *special problem, binary search, brute force, data structures, strings	1400	x3001
159B	Matchmaker *special problem, greedy, sortings	1100	x3809
159A	Friends or Not *special problem, greedy, implementation	1400	x2485
158E	Phone Talks *special problem, dp, sortings	1900	x1463
158D	Ice Sculptures *special problem, brute force, number theory	1300	x6253
158C	Cd and pwd commands *special problem, data structures, implementation	1400	x9267
158B	Taxi *special problem, greedy, implementation	1100	x87881
158A	Next Round *special problem, implementation	800	x253809
157B	Trace geometry, sortings	1000	x13252
157A	Game Outcome brute force	800	x7682
156E	Mrs. Hudson's Pancakes brute force, dp	3000	x163
156D	Clues combinatorics, graphs	2500	x1596
156C	Cipher combinatorics, dp	2000	x2429
156B	Suspects constructive algorithms, data structures, implementation	1600	x2234
156A	Message brute force	1700	x3046
155B	Combination greedy, sortings	1100	x10340
155A	I_love_\%username\% brute force	800	x76619
154E	Martian Colony geometry	3000	x97
154D	Flatland Fencing games, math	2400	x433
154C	Double Profiles graphs, hashing, sortings	2300	x2873
154B	Colliders math, number theory	1600	x4762
154A	Hometask greedy	1600	x4065
153E	Euclidean Distance *special problem	2100	x80
153D	Date Change *special problem	2000	x83
153C	Caesar Cipher *special problem	2200	x391
153B	Binary notation *special problem	1800	x157
153A	A + B *special problem	1600	x822