Problemset - Codeforces

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

→ Pay attention

Before contest
Codeforces Round 976 (Div. 2) and Divide By Zero 9.0
08:09:36
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
185E	Soap Time! - 2 binary search, data structures	3000	x105
185D	Visit of the Great math, number theory	2600	x423
185C	Clever Fat Rat dp	2500	x136
185B	Mushroom Scientists math, ternary search	1800	x1635
183E	Candy Shop greedy	2900	x135
183D	T-shirt dp, greedy, probabilities	2700	x402
183C	Cyclic Coloring dfs and similar	2200	x609
183B	Zoo brute force, geometry	1700	x696
183A	Headquarters constructive algorithms, math	1700	x547
182E	Wooden Fence dp	1800	x1454
182D	Common Divisors brute force, hashing, implementation, math, strings	1400	x8038
182C	Optimal Sum data structures, greedy	2000	x722
182A	Battlefield geometry, graphs, implementation, shortest paths	2200	x281
180E	Cubes binary search, dp, two pointers	1800	x1762
180D	Name greedy, strings	1900	x722
180C	Letter dp	1400	x7327
180B	Divisibility Rules math, number theory	2300	x344
180A	Defragmentation implementation	1800	x536
178F3	Representative Sampling	2500	x426
178F2	Representative Sampling dp, sortings, strings	2200	x345
178F1	Representative Sampling	1800	x401
178E3	The Beaver's Problem - 2	2300	x201
178E2	The Beaver's Problem - 2	2000	x230
178E1	The Beaver's Problem - 2	1900	x289
178D3	Magic Squares	2100	x245
178D2	Magic Squares	1900	x268
178D1	Magic Squares	1500	x635
178C3	Smart Beaver and Resolving Collisions	2000	x300
178C2	Smart Beaver and Resolving Collisions	1900	x292
178C1	Smart Beaver and Resolving Collisions	1600	x475
178B3	Greedy Merchants	1800	x1194
178B2	Greedy Merchants	1600	x678
178B1	Greedy Merchants	1600	x760
177G2	Fibonacci Strings matrices, strings	2600	x184
177G1	Fibonacci Strings strings	2400	x177
177F2	Script Generation	2300	x206
177F1	Script Generation	1800	x302
177E2	Space Voyage binary search	1900	x429
177E1	Space Voyage binary search	1700	x611
177D2	Encrypting Messages data structures	1500	x1942
177C2	Party brute force, dfs and similar, dsu, graphs	1500	x2556
177C1	Party dfs and similar, dsu, graphs	1500	x2551
176E	Archaeology data structures, dfs and similar, trees	3100	x1143
176D	Hyper String dp	2500	x323
176C	Playing with Superglue combinatorics, constructive algorithms	2000	x479
176B	Word Cut dp	1700	x1813
175F	Gnomes of Might and Magic data structures, graphs, implementation, shortest paths	3000	x66
175E	Power Defence brute force, dp, geometry, greedy	2600	x264
175D	Plane of Tanks: Duel brute force, dp, math, probabilities	2400	x297
175C	Geometry Horse greedy, implementation, sortings, two pointers	1600	x1311
175B	Plane of Tanks: Pro implementation	1400	x1419
175A	Robot Bicorn Attack brute force, implementation	1400	x2381
174C	Range Increments data structures, greedy	1800	x1089
174B	File List dp, greedy, implementation	1400	x2234
173E	Camping Groups data structures, sortings	2600	x552
173D	Deputies constructive algorithms, graphs, greedy, implementation	2500	x248
173C	Spiral Maximum brute force, dp	1900	x976
173B	Chamber of Secrets dfs and similar, shortest paths	1800	x3075
172E	BHTML+BCSS *special problem, dfs and similar, expression parsing	2200	x271
172D	Calendar Reform *special problem, number theory	1500	x1395
172C	Bus *special problem, implementation, sortings	1500	x1139
171H	A polyline *special problem, implementation	1700	x279
171G	Mysterious numbers - 2 *special problem	1600	x921
171F	ucyhf *special problem, brute force, implementation, number theory	1600	x1271
171E	MYSTERIOUS LANGUAGE *special problem	2000	x1450
171C	A Piece of Cake *special problem, implementation	2000	x1079
168B	Wizards and Minimal Spell implementation, strings	1700	x1215
167E	Wizards and Bets dfs and similar, graphs, math, matrices	2900	x578
167D	Wizards and Roads data structures, divide and conquer, graph matchings, graphs, greedy	3000	x193
167C	Wizards and Numbers games, math	2300	x669
167B	Wizards and Huge Prize dp, math, probabilities	1800	x2146
167A	Wizards and Trolleybuses implementation, math	1600	x2032
166E	Tetrahedron dp, math, matrices	1500	x20960
166D	Shoe Store dp, graph matchings, greedy, sortings, two pointers	2500	x355
166C	Median greedy, math, sortings	1500	x6477
166B	Polygons geometry, sortings	2100	x2399
165E	Compatible Numbers bitmasks, brute force, dfs and similar, dp	2200	x6755
165D	Beard Graph data structures, dsu, trees	2100	x1636
165C	Another Problem on Strings binary search, brute force, dp, math, strings, two pointers	1600	x12212
165B	Burning Midnight Oil binary search, implementation	1500	x17718
164E	Polycarpus and Tasks	3100	x67
164D	Minimum Diameter binary search, brute force	3100	x244
164C	Machine Programming flows, graphs	2400	x896
164B	Ancient Berland Hieroglyphs two pointers	2000	x453
164A	Variable, or There and Back Again dfs and similar, graphs	1700	x1008
163E	e-Government data structures, dfs and similar, dp, strings, trees	2800	x1704
163D	Large Refrigerator brute force	2900	x504
163C	Conveyor sortings, two pointers	2100	x541
163B	Lemmings binary search	2000	x1058
163A	Substring and Subsequence dp	1700	x2703
162J	Brackets *special problem	1800	x95
162I	Truncatable primes *special problem	2000	x77
162H	Alternating case *special problem	1800	x220
162G	Non-decimal sum *special problem	2000	x63
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	x788
162B	Binary notation *special problem	1800	x313
161E	Polycarpus the Safecracker brute force, dp	2500	x467