Problemset - Codeforces

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

→ Pay attention

Before contest
Codeforces Round 974 (Div. 3)
20:49:56
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
167A	Wizards and Trolleybuses implementation, math	1600	x2027
166D	Shoe Store dp, graph matchings, greedy, sortings, two pointers	2500	x355
166B	Polygons geometry, sortings	2100	x2392
165E	Compatible Numbers bitmasks, brute force, dfs and similar, dp	2200	x6731
165D	Beard Graph data structures, dsu, trees	2100	x1634
165C	Another Problem on Strings binary search, brute force, dp, math, strings, two pointers	1600	x12188
164E	Polycarpus and Tasks	3100	x67
164D	Minimum Diameter binary search, brute force	3100	x235
164C	Machine Programming flows, graphs	2400	x895
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	x1695
163D	Large Refrigerator brute force	2900	x503
163C	Conveyor sortings, two pointers	2100	x540
163B	Lemmings binary search	2000	x1058
163A	Substring and Subsequence dp	1700	x2696
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	x201
162E	HQ9+ *special problem	1800	x178
162D	Remove digits *special problem	1900	x228
162C	Prime factorization *special problem	1800	x787
162B	Binary notation *special problem	1800	x313
161E	Polycarpus the Safecracker brute force, dp	2500	x467
161D	Distance in Tree dfs and similar, dp, trees	1800	x14668
161C	Abracadabra divide and conquer	2400	x647
161B	Discounts constructive algorithms, greedy, sortings	1700	x1953
160E	Buses and People binary search, data structures, sortings	2400	x587
160D	Edges in MST dfs and similar, dsu, graphs, sortings	2300	x2492
160C	Find Pair implementation, math, sortings	1700	x3440
159E	Zebra Tower *special problem, data structures, greedy, sortings	1700	x997
158E	Phone Talks *special problem, dp, sortings	1900	x1460
156E	Mrs. Hudson's Pancakes brute force, dp	3000	x162
156D	Clues combinatorics, graphs	2500	x1561
156C	Cipher combinatorics, dp	2000	x2387
156B	Suspects constructive algorithms, data structures, implementation	1600	x2222
156A	Message brute force	1700	x3034
154E	Martian Colony geometry	3000	x97
154D	Flatland Fencing games, math	2400	x429
154C	Double Profiles graphs, hashing, sortings	2300	x2786
154B	Colliders math, number theory	1600	x4560
154A	Hometask greedy	1600	x4038
153E	Euclidean Distance *special problem	2100	x79
153D	Date Change *special problem	2000	x82
153C	Caesar Cipher *special problem	2200	x378
153B	Binary notation *special problem	1800	x156
153A	A + B *special problem	1600	x819
152E	Garden bitmasks, dp, graphs, trees	2500	x481
152D	Frames brute force	2600	x241
150E	Freezing with Style binary search, data structures, divide and conquer, trees	3000	x840
150D	Mission Impassable dp, strings	2600	x602
150C	Smart Cheater data structures, math, probabilities	2200	x641
150B	Quantity of Strings combinatorics, dfs and similar, graphs, math	1600	x4119
149E	Martian Strings string suffix structures, strings	2300	x2264
149D	Coloring Brackets dp	1900	x3791
149B	Martian Clock implementation	1600	x2252
148E	Porcelain dp	1900	x3993
148D	Bag of mice dp, games, math, probabilities	1800	x7161
148C	Terse princess constructive algorithms, greedy	1700	x3105
147B	Smile House binary search, graphs, matrices	2500	x783
145E	Lucky Queries data structures	2400	x3118
145D	Lucky Pair combinatorics, data structures, implementation	2900	x242
145C	Lucky Subsequence combinatorics, dp, math	2100	x1906
145B	Lucky Number 2 constructive algorithms	1800	x2196
144E	Competition data structures, greedy	2200	x582
144D	Missile Silos data structures, dfs and similar, graphs, shortest paths	1900	x3945
142E	Help Greg the Dwarf 2 geometry	3000	x80
142D	Help Shrek and Donkey 2 games	2600	x347
142C	Help Caretaker brute force, dp	2300	x914
142B	Help General constructive algorithms, greedy, implementation	1800	x2202
142A	Help Farmer brute force, math	1600	x2606
141E	Clearing Up constructive algorithms, dp, dsu, graphs	2300	x1067
141D	Take-off Ramps graphs, shortest paths	2300	x894
141C	Queue constructive algorithms, greedy, sortings	1800	x2426
140F	New Year Snowflake geometry, sortings	2600	x367
140E	New Year Garland combinatorics, dp	2600	x937
140D	New Year Contest greedy, sortings	1800	x2205
140C	New Year Snowmen binary search, data structures, greedy	1800	x4349
140B	New Year Cards brute force, greedy, implementation	1800	x1675
140A	New Year Table geometry, math	1700	x4131
139B	Wallpaper implementation, math	1600	x1294
138E	Hellish Constraints brute force, dp, two pointers	2900	x173
138D	World of Darkraft dp, games	2500	x491
138C	Mushroom Gnomes - 2 binary search, data structures, probabilities, sortings	2200	x870
138B	Digits Permutations greedy	1900	x1027
138A	Literature Lesson implementation	1600	x2381
137E	Last Chance data structures, implementation, strings	2000	x1214
137D	Palindromes dp, strings	1900	x1508
135E	Weak Subsequence combinatorics	3000	x286
135D	Cycle brute force, dfs and similar, implementation	2500	x299
135C	Zero-One constructive algorithms, games, greedy	1900	x1336
135B	Rectangle and Square brute force, geometry, math	1600	x2339
134C	Swaps constructive algorithms, graphs, greedy	2200	x471
134B	Pairs of Numbers brute force, dfs and similar, math, number theory	1900	x2012
132E	Bits of merry old England flows, graphs	2700	x533
132D	Constants in the language of Shakespeare constructive algorithms, dp, greedy	2100	x613
132C	Logo Turtle dp	1800	x2314
132B	Piet implementation	2100	x663