Problemset - Codeforces

Please read the new rule regarding the restriction on the use of AI tools. ×

→ Pay attention

Before contest
Codeforces Round 977 (Div. 2)
2 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
298B	Sail brute force, greedy, implementation	1200	x14113
298A	Snow Footprints greedy, implementation	1300	x10919
296A	Yaroslav and Permutations greedy, math	1100	x23094
292B	Network Topology graphs, implementation	1200	x8210
292A	SMSC implementation	1100	x2696
291B	Command Line Arguments *special problem, implementation, strings	1300	x3031
289A	Polo the Penguin and Segments brute force, implementation	1100	x9228
288A	Polo the Penguin and Strings greedy	1300	x6491
287A	IQ Test brute force, implementation	1100	x19755
285C	Building Permutation greedy, implementation, sortings	1200	x23205
285B	Find Marble implementation	1200	x15013
285A	Slightly Decreasing Permutations greedy, implementation	1100	x13336
276B	Little Girl and Game games, greedy	1300	x28478
271B	Prime Matrix binary search, brute force, math, number theory	1300	x13023
270A	Fancy Fence geometry, implementation, math	1100	x45295
264A	Escape from Stones constructive algorithms, data structures, implementation, two pointers	1200	x10755
262B	Roma and Changing Signs greedy	1200	x11349
259B	Little Elephant and Magic Square brute force, implementation	1100	x13939
258A	Little Elephant and Bits greedy, math	1100	x22887
257B	Playing Cubes games, greedy, implementation	1300	x7050
257A	Sockets greedy, implementation, sortings	1100	x6476
255B	Code Parsing implementation	1200	x4964
254A	Cards with Numbers constructive algorithms, sortings	1200	x7041
253A	Boys and Girls greedy	1100	x11236
252A	Little Xor brute force, implementation	1100	x5280
251A	Points on Line binary search, combinatorics, two pointers	1300	x17591
246B	Increase and Decrease greedy, math	1300	x11277
245B	Internet Address implementation, strings	1100	x5219
242B	Big Segment implementation, sortings	1100	x15696
242A	Heads or Tails brute force, implementation	1100	x6374
241A	Old Peykan greedy	1300	x2231
239A	Two Bags of Potatoes greedy, implementation, math	1200	x18830
238A	Not Wool Sequences constructive algorithms, math	1300	x2036
236B	Easy Number Challenge implementation, number theory	1300	x14186
234C	Weather dp, implementation	1300	x5523
234A	Lefthanders and Righthanders implementation	1200	x4432
230B	T-primes binary search, implementation, math, number theory	1300	x74905
227B	Effective Approach implementation	1100	x27927
227A	Where do I Turn? geometry	1300	x4182
225A	Dice Tower constructive algorithms, greedy	1100	x11680
224A	Parallelepiped brute force, geometry, math	1100	x26613
222B	Cosmic Tables data structures, implementation	1300	x6101
222A	Shooshuns and Sequence brute force, implementation	1200	x10745
221B	Little Elephant and Numbers implementation	1300	x4564
220A	Little Elephant and Problem implementation, sortings	1300	x11981
218B	Airport implementation	1100	x16399
218A	Mountain Scenery brute force, constructive algorithms, implementation	1100	x9427
217A	Ice Skating brute force, dfs and similar, dsu, graphs	1200	x21124
216A	Tiling with Hexagons implementation, math	1200	x4998
215B	Olympic Medal greedy, math	1300	x5566
208D	Prizes, Prizes, more Prizes implementation	1200	x7585
203B	Game on Paper brute force, implementation	1300	x2591
203A	Two Problems brute force, implementation	1200	x4175
196A	Lexicographically Maximum Subsequence greedy, strings	1100	x5395
195B	After Training data structures, implementation, math	1300	x5196
194B	Square math	1200	x3515
192B	Walking in the Rain brute force, implementation	1100	x6252
192A	Funky Numbers binary search, brute force, implementation	1300	x10373
190A	Vasya and the Bus greedy, math	1100	x5857
189B	Counting Rhombi brute force, math	1300	x3941
189A	Cut Ribbon brute force, dp	1300	x66537
188D	Asterisks *special problem, implementation	1100	x680
188B	A + Reverse B *special problem, implementation	1300	x731
188A	Hexagonal Numbers *special problem	1100	x775
186B	Growing Mushrooms greedy, sortings	1200	x5571
186A	Comparing Strings implementation, strings	1100	x16849
185A	Plant math	1300	x5896
181B	Number of Triplets binary search, brute force	1300	x3009
180F	Mathematical Analysis Rocks! constructive algorithms, implementation, math	1200	x2508
178A3	Educational Game greedy	1100	x1437
177D1	Encrypting Messages brute force	1200	x2157
177B2	Rectangular Game number theory	1200	x2984
176A	Trading Business greedy, sortings	1200	x1463
174A	Problem About Equation math	1100	x2804
173A	Rock-Paper-Scissors implementation, math	1300	x2290
172B	Pseudorandom Sequence Period *special problem, implementation, number theory	1200	x2775
171D	Broken checker *special problem, brute force	1300	x2567
171B	Star *special problem, combinatorics	1300	x4045
171A	Mysterious numbers - 1 *special problem, constructive algorithms	1200	x4442
169B	Replacing Digits greedy	1100	x3276
166A	Rank List binary search, implementation, sortings	1100	x17616
162A	Pentagonal numbers *special problem, implementation	1100	x803
161A	Dress'em in Vests! binary search, brute force, greedy, two pointers	1300	x4889
160B	Unlucky Ticket greedy, sortings	1100	x13958
159B	Matchmaker *special problem, greedy, sortings	1100	x3783
158D	Ice Sculptures *special problem, brute force, number theory	1300	x6241
158B	Taxi *special problem, greedy, implementation	1100	x86419
155B	Combination greedy, sortings	1100	x10182
152B	Steps binary search, implementation	1300	x6681
151B	Phone Numbers implementation, strings	1200	x6377
147A	Punctuation implementation, strings	1300	x3629
146B	Lucky Mask brute force, implementation	1300	x4364
145A	Lucky Conversion greedy, implementation	1200	x7142
144B	Meeting implementation	1300	x5244
143B	Help Kingdom of Far Far Away 2 implementation, strings	1200	x4985
136B	Ternary Logic implementation, math	1100	x4859
135A	Replacement greedy, implementation, sortings	1300	x7534
134A	Average Numbers brute force, implementation	1200	x3955
133B	Unary implementation	1200	x8803
132A	Turing Tape implementation	1300	x2774