Problemset - Codeforces

→ Pay attention

Before contest
CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
4 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
2038N	Fixing the Expression implementation	800	x3839
2038M	Royal Flush dp, implementation	2800	x121
2038L	Bridge Renovation brute force, dp, greedy, math	1400	x2137
2038K	Grid Walk dp, greedy, math, number theory	2100	x592
2038J	Waiting for... greedy, implementation	800	x3230
2038I	Polyathlon data structures, hashing, string suffix structures, strings	2500	x288
2038H	Galactic Council flows	3000	x56
2038G	Guess One Character constructive algorithms, interactive	1900	x1134
2038F	Alternative Platforms combinatorics, data structures, fft, math, sortings	2500	x234
2038E	Barrels data structures, greedy, math	2900	x66
2038D	Divide OR Conquer bitmasks, data structures, dp, implementation	2400	x316
2038C	DIY data structures, geometry, greedy, sortings	1400	x1994
2038B	Make It Equal binary search, brute force, greedy, math	2100	x731
2038A	Bonus Project games, greedy	1400	x1773
2037G	Natlan Exploring bitmasks, combinatorics, data structures, dp, math, number theory	2000	x1491
2037F	Ardent Flames binary search, data structures, math, sortings, two pointers	2100	x1134
2037E	Kachina's Favorite Binary String dp, greedy, interactive, two pointers	1600	x3494
2037D	Sharky Surfing data structures, greedy, two pointers	1300	x7181
2037C	Superultra's Favorite Permutation constructive algorithms, greedy, math, number theory	1000	x13259
2037B	Intercepted Inputs brute force, implementation	800	x15561
2037A	Twice implementation	800	x20183
2036G	Library of Magic binary search, constructive algorithms, divide and conquer, interactive, math, number theory	2200	x1024
2036F	XORificator 3000 bitmasks, dp, number theory, two pointers	1900	x3185
2036E	Reverse the Rivers binary search, constructive algorithms, data structures, greedy	1600	x6233
2036D	I Love 1543 brute force, implementation, matrices	1300	x11232
2036C	Anya and 1100 brute force, implementation	1100	x15943
2036B	Startup greedy, sortings	800	x22443
2036A	Quintomania implementation	800	x29798
2035H	Peak Productivity Forces constructive algorithms	3500	x54
2035G2	Go Learn! (Hard Version) divide and conquer, dp	3500	x72
2035G1	Go Learn! (Easy Version) dp, trees	3300	x127
2035F	Tree Operations binary search, brute force, dfs and similar, dp, trees	2500	x767
2035E	Monster binary search, brute force, constructive algorithms, greedy, implementation, math, ternary search	2300	x1481
2035D	Yet Another Real Number Problem binary search, data structures, divide and conquer, greedy, implementation, math	1800	x4343
2035C	Alya and Permutation bitmasks, constructive algorithms, math	1400	x7846
2035B	Everyone Loves Tres constructive algorithms, greedy, math, number theory	900	x14338
2035A	Sliding implementation, math	800	x14636
2033G	Sakurako and Chefir data structures, dfs and similar, dp, greedy, trees	2200	x1234
2033F	Kosuke's Sloth brute force, math, number theory	1800	x5151
2033E	Sakurako, Kosuke, and the Permutation brute force, data structures, dfs and similar, dsu, graphs, greedy, math	1400	x9749
2033D	Kousuke's Assignment data structures, dp, dsu, greedy, math	1300	x12842
2033C	Sakurako's Field Trip dp, greedy, two pointers	1400	x12447
2033B	Sakurako and Water brute force, constructive algorithms, greedy	900	x22705
2033A	Sakurako and Kosuke constructive algorithms, implementation, math	800	x32537
2032F	Peanuts combinatorics, dp, games, math	2700	x244
2032E	Balanced constructive algorithms, data structures, greedy, implementation, math	2400	x906
2032D	Genokraken constructive algorithms, data structures, graphs, greedy, implementation, interactive, trees, two pointers	1800	x4417
2032C	Trinity binary search, math, sortings, two pointers	1400	x10853
2032B	Medians constructive algorithms, greedy, implementation, math	1100	x15231
2032A	Circuit greedy, implementation, math, number theory	800	x19914
2031F	Penchick and Even Medians binary search, constructive algorithms, interactive, probabilities	2800	x191
2031E	Penchick and Chloe's Trees data structures, dfs and similar, dp, greedy, implementation, math, sortings, trees	2100	x1398
2031D	Penchick and Desert Rabbit binary search, data structures, dp, dsu, greedy, two pointers	1700	x4732
2031C	Penchick and BBQ Buns constructive algorithms, math, number theory	1300	x8454
2031B	Penchick and Satay Sticks brute force, greedy, sortings	900	x12487
2031A	Penchick and Modern Monument constructive algorithms, dp, greedy, math	800	x13652
2030G2	The Destruction of the Universe (Hard Version) combinatorics, math	3100	x108
2030G1	The Destruction of the Universe (Easy Version) combinatorics, greedy, math	2900	x145
2030F	Orangutan Approved Subarrays binary search, data structures, dp, greedy, implementation, two pointers	2400	x670
2030E	MEXimize the Score combinatorics, data structures, dp, greedy, implementation, math	2200	x1304
2030D	QED's Favorite Permutation data structures, implementation, sortings	1700	x6170
2030C	A TRUE Battle brute force, games, greedy	1100	x15583
2030B	Minimise Oneness combinatorics, constructive algorithms, games, math	800	x19894
2030A	A Gift From Orangutan constructive algorithms, greedy, math, sortings	800	x23227
2029I	Variance Challenge flows, graphs, greedy	3400	x23
2029H	Message Spread bitmasks, brute force, combinatorics, dp	3500	x38
2029G	Balanced Problem data structures, dp	3000	x117
2029F	Palindrome Everywhere constructive algorithms, graphs, greedy	2500	x593
2029E	Common Generator brute force, constructive algorithms, math, number theory	2100	x2306
2029D	Cool Graph constructive algorithms, data structures, dfs and similar, dsu, graphs, greedy, trees	1900	x2528
2029C	New Rating binary search, data structures, dp, greedy	1700	x4634
2029B	Replacement constructive algorithms, games, strings	1100	x7975
2029A	Set greedy, math	800	x10675
2028F	Alice's Adventures in Addition bitmasks, brute force, dp, implementation	2700	x261
2028E	Alice's Adventures in the Rabbit Hole combinatorics, dfs and similar, dp, games, greedy, math, probabilities, trees	2300	x1042
2028D	Alice's Adventures in Cards constructive algorithms, data structures, dp, graphs, greedy, implementation, ternary search	2000	x2166
2028C	Alice's Adventures in Cutting Cake binary search, dp, greedy, two pointers	1600	x5535
2028B	Alice's Adventures in Permuting binary search, implementation, math	1400	x8110
2028A	Alice's Adventures in ''Chess'' brute force, implementation, math	900	x13274
2027E2	Bit Game (Hard Version) bitmasks, dp, math	3100	x48
2027E1	Bit Game (Easy Version) bitmasks, brute force, games, math	2800	x126
2027D2	The Endspeaker (Hard Version) binary search, data structures, dp, greedy, implementation, two pointers	2200	x1270
2027D1	The Endspeaker (Easy Version) binary search, dp, graphs, greedy, implementation, two pointers	1700	x4601
2027C	Add Zeros brute force, data structures, dfs and similar, dp, graphs, greedy	1500	x8706
2027B	Stalin Sort brute force, greedy	1100	x13380
2027A	Rectangle Arrangement geometry, implementation, math	800	x18232
2026F	Bermart Ice Cream data structures, dfs and similar, divide and conquer, dp, implementation, trees	2700	x168
2026E	Best Subsequence bitmasks, dfs and similar, flows, graph matchings, graphs	2500	x1074
2026D	Sums of Segments binary search, data structures, dp, implementation, math	1900	x3898
2026C	Action Figures binary search, brute force, constructive algorithms, data structures, greedy, implementation	1500	x8465
2026B	Black Cells binary search, brute force, constructive algorithms, greedy	1300	x11564
2026A	Perpendicular Segments constructive algorithms, geometry, greedy, math	900	x15703
2025G	Variable Damage data structures, flows	3000	x134
2025F	Choose Your Queries constructive algorithms, dfs and similar, dp, graphs, greedy, trees	2700	x673
2025E	Card Game combinatorics, dp, fft, greedy, math	2200	x1734
2025D	Attribute Checks brute force, data structures, dp, implementation, math, two pointers	1800	x5841
2025C	New Game binary search, brute force, greedy, implementation, sortings, two pointers	1300	x14366
2025B	Binomial Coefficients, Kind Of combinatorics, dp, math	1100	x16345
2025A	Two Screens binary search, greedy, strings, two pointers	800	x23310
2024B	Buying Lemonade binary search, constructive algorithms, sortings	1100	x12978

←