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, based on COMPFEST 16 - Final Round)
01:45:04
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
147B	Smile House binary search, graphs, matrices	2500	x785
147A	Punctuation implementation, strings	1300	x3631
146B	Lucky Mask brute force, implementation	1300	x4365
146A	Lucky Ticket implementation	800	x15066
145E	Lucky Queries data structures	2400	x3136
145D	Lucky Pair combinatorics, data structures, implementation	2900	x243
145C	Lucky Subsequence combinatorics, dp, math	2100	x1908
145B	Lucky Number 2 constructive algorithms	1800	x2208
145A	Lucky Conversion greedy, implementation	1200	x7143
144E	Competition data structures, greedy	2200	x586
144D	Missile Silos data structures, dfs and similar, graphs, shortest paths	1900	x3968
144C	Anagram Search implementation, strings	1500	x4006
144B	Meeting implementation	1300	x5245
144A	Arrival of the General implementation	800	x95653
143B	Help Kingdom of Far Far Away 2 implementation, strings	1200	x4985
143A	Help Vasilisa the Wise 2 brute force, math	1000	x13840
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	x920
142B	Help General constructive algorithms, greedy, implementation	1800	x2208
142A	Help Farmer brute force, math	1600	x2613
141E	Clearing Up constructive algorithms, dp, dsu, graphs	2300	x1072
141D	Take-off Ramps graphs, shortest paths	2300	x895
141C	Queue constructive algorithms, greedy, sortings	1800	x2452
141B	Hopscotch geometry, math	1400	x5346
141A	Amusing Joke implementation, sortings, strings	800	x82799
140F	New Year Snowflake geometry, sortings	2600	x367
140E	New Year Garland combinatorics, dp	2600	x938
140D	New Year Contest greedy, sortings	1800	x2210
140C	New Year Snowmen binary search, data structures, greedy	1800	x4359
140B	New Year Cards brute force, greedy, implementation	1800	x1679
140A	New Year Table geometry, math	1700	x4139
139B	Wallpaper implementation, math	1600	x1299
139A	Petr and Book implementation	1000	x31014
138E	Hellish Constraints brute force, dp, two pointers	2900	x174
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	x1033
138A	Literature Lesson implementation	1600	x2388
137E	Last Chance data structures, implementation, strings	2000	x1217
137D	Palindromes dp, strings	1900	x1512
137C	History sortings	1500	x7189
137B	Permutation greedy	1000	x13667
137A	Postcards and photos implementation	900	x7135
136B	Ternary Logic implementation, math	1100	x4859
136A	Presents implementation	800	x117074
135E	Weak Subsequence combinatorics	3000	x305
135D	Cycle brute force, dfs and similar, implementation	2500	x300
135C	Zero-One constructive algorithms, games, greedy	1900	x1344
135B	Rectangle and Square brute force, geometry, math	1600	x2346
135A	Replacement greedy, implementation, sortings	1300	x7534
134C	Swaps constructive algorithms, graphs, greedy	2200	x472
134B	Pairs of Numbers brute force, dfs and similar, math, number theory	1900	x2022
134A	Average Numbers brute force, implementation	1200	x3956
133B	Unary implementation	1200	x8803
133A	HQ9+ implementation	900	x105059
132E	Bits of merry old England flows, graphs	2700	x533
132D	Constants in the language of Shakespeare constructive algorithms, dp, greedy	2100	x615
132C	Logo Turtle dp	1800	x2325
132B	Piet implementation	2100	x663
132A	Turing Tape implementation	1300	x2774
131F	Present to Mom binary search, two pointers	2000	x642
131E	Yet Another Task with Queens sortings	1700	x1851
131D	Subway dfs and similar, graphs	1600	x4663
131C	The World is a Theatre combinatorics, math	1400	x11093
131B	Opposites Attract implementation, math	1200	x7036
131A	cAPS lOCK implementation, strings	1000	x85352
130J	Date calculation *special problem	1800	x339
130I	Array sorting *special problem, sortings	2300	x167
130H	Balanced brackets *special problem	1600	x594
130G	CAPS LOCK ON *special problem	1700	x284
130F	Prime factorization *special problem	1600	x278
130E	Tribonacci numbers *special problem	1600	x296
130D	Exponentiation *special problem	1500	x393
130C	Decimal sum *special problem	1500	x495
130B	Gnikool Ssalg *special problem, implementation, strings	1400	x529
130A	Hexagonal numbers *special problem, implementation	900	x1621
129B	Students and Shoelaces brute force, dfs and similar, graphs, implementation	1200	x12182
129A	Cookies implementation	900	x22582
128E	Birthday geometry, math	2900	x98
128D	Numbers constructive algorithms, implementation	2000	x1142
128C	Games with Rectangle combinatorics, dp	2000	x2938
128B	String brute force, constructive algorithms, hashing, implementation, string suffix structures, strings	2100	x2570
128A	Statues dfs and similar	1500	x3193
127B	Canvas Frames implementation	1000	x8746
127A	Wasted Time geometry	900	x11212
126E	Pills brute force, flows	2900	x83
126D	Fibonacci Sums dp, math	2300	x830
126C	E-reader Display constructive algorithms, greedy	2000	x723
126B	Password binary search, dp, hashing, string suffix structures, strings	1700	x19355
126A	Hot Bath binary search, brute force, math	1900	x1433
125E	MST Company binary search, graphs	2400	x1078
125D	Two progressions constructive algorithms, greedy	2200	x400
125C	Hobbits' Party constructive algorithms, greedy	1600	x926
125B	Simple XML implementation	1000	x2907
125A	Measuring Lengths in Baden math	1400	x2717
124B	Permutations brute force, combinatorics, implementation	1400	x3897
124A	The number of positions math	1000	x38232
123E	Maze dfs and similar, dp, probabilities, trees	2500	x717
123D	String string suffix structures	2300	x1213