Problemset - Codeforces

→ Pay attention

Before contest
Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
5 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
2041N	Railway Construction		x4
2041M	Selection Sort greedy		x353
2041L	Building Castle		x9
2041K	Trophic Balance Species		x11
2041J	Bottle Arrangement dsu, greedy		x44
2041I	Auto Complete data structures, implementation, sortings, strings, trees		x207
2041H	Sheet Music combinatorics, dp		x222
2041G	Grid Game		x13
2041F	Segmentation Folds brute force, dfs and similar, number theory		x137
2041E	Beautiful Array constructive algorithms		x1317
2041D	Drunken Maze dfs and similar, graphs, shortest paths		x682
2041C	Cube bitmasks, dp		x520
2041B	Bowling Frame binary search, math		x1390
2041A	The Bento Box Adventure implementation		x2436
2039H2	Cool Swap Walk (Hard Version) constructive algorithms, constructive algorithms, constructive algorithms, implementation, implementation, sortings, sortings		x17
2039H1	Cool Swap Walk (Easy Version) constructive algorithms, implementation, sortings		x29
2039G	Shohag Loves Pebae math, number theory		x13
2039F2	Shohag Loves Counting (Hard Version) dp, number theory		x84
2039F1	Shohag Loves Counting (Easy Version) combinatorics, dp, math, number theory		x199
2039E	Shohag Loves Inversions combinatorics, constructive algorithms, dp, implementation, math		x1300
2039D	Shohag Loves GCD constructive algorithms, divide and conquer, greedy, math, number theory		x3275
2039C2	Shohag Loves XOR (Hard Version) bitmasks, brute force, math, number theory		x2688
2039C1	Shohag Loves XOR (Easy Version) bitmasks, brute force, math, number theory		x6769
2039B	Shohag Loves Strings constructive algorithms, greedy, implementation, strings		x8510
2039A	Shohag Loves Mod constructive algorithms, number theory		x10652
2038N	Fixing the Expression implementation	800	x6170
2038M	Royal Flush dp, implementation	2800	x175
2038L	Bridge Renovation brute force, dp, greedy, math, two pointers	1400	x3156
2038K	Grid Walk brute force, dp, greedy, math, number theory	2100	x909
2038J	Waiting for... greedy, implementation	800	x4660
2038I	Polyathlon binary search, data structures, hashing, string suffix structures, strings	2500	x398
2038H	Galactic Council flows	3000	x84
2038G	Guess One Character constructive algorithms, implementation, interactive	1900	x1608
2038F	Alternative Platforms combinatorics, data structures, fft, math, sortings	2500	x305
2038E	Barrels data structures, greedy, math	2900	x88
2038D	Divide OR Conquer bitmasks, data structures, dp, implementation	2400	x449
2038C	DIY data structures, geometry, greedy, sortings	1400	x2838
2038B	Make It Equal binary search, brute force, greedy, math	2100	x1043
2038A	Bonus Project games, greedy	1400	x2445
2037G	Natlan Exploring bitmasks, combinatorics, data structures, dp, math, number theory	2000	x1962
2037F	Ardent Flames binary search, data structures, math, sortings, two pointers	2100	x1554
2037E	Kachina's Favorite Binary String dp, greedy, interactive, two pointers	1600	x4230
2037D	Sharky Surfing data structures, greedy, two pointers	1300	x8446
2037C	Superultra's Favorite Permutation constructive algorithms, greedy, math, number theory	1000	x15103
2037B	Intercepted Inputs brute force, implementation	800	x17466
2037A	Twice implementation	800	x22594
2036G	Library of Magic binary search, constructive algorithms, divide and conquer, interactive, math, number theory	2200	x1073
2036F	XORificator 3000 bitmasks, dp, number theory, two pointers	1900	x3307
2036E	Reverse the Rivers binary search, constructive algorithms, data structures, greedy	1600	x6429
2036D	I Love 1543 brute force, implementation, matrices	1300	x11462
2036C	Anya and 1100 brute force, implementation	1100	x16283
2036B	Startup greedy, sortings	800	x22866
2036A	Quintomania implementation	800	x30339
2035H	Peak Productivity Forces constructive algorithms	3500	x57
2035G2	Go Learn! (Hard Version) divide and conquer, dp	3500	x74
2035G1	Go Learn! (Easy Version) dp, trees	3300	x130
2035F	Tree Operations binary search, brute force, dfs and similar, dp, trees	2500	x780
2035E	Monster binary search, brute force, constructive algorithms, greedy, implementation, math, ternary search	2300	x1512
2035D	Yet Another Real Number Problem binary search, data structures, divide and conquer, greedy, implementation, math	1800	x4422
2035C	Alya and Permutation bitmasks, constructive algorithms, math	1400	x7958
2035B	Everyone Loves Tres constructive algorithms, greedy, math, number theory	900	x14624
2035A	Sliding implementation, math	800	x14805
2033G	Sakurako and Chefir data structures, dfs and similar, dp, greedy, trees	2200	x1264
2033F	Kosuke's Sloth brute force, math, number theory	1800	x5218
2033E	Sakurako, Kosuke, and the Permutation brute force, data structures, dfs and similar, dsu, graphs, greedy, math	1400	x9855
2033D	Kousuke's Assignment data structures, dp, dsu, greedy, math	1300	x12977
2033C	Sakurako's Field Trip dp, greedy, two pointers	1400	x12580
2033B	Sakurako and Water brute force, constructive algorithms, greedy	900	x22880
2033A	Sakurako and Kosuke constructive algorithms, implementation, math	800	x32806
2032F	Peanuts combinatorics, dp, games, math	2700	x262
2032E	Balanced constructive algorithms, data structures, greedy, implementation, math	2400	x949
2032D	Genokraken constructive algorithms, data structures, graphs, greedy, implementation, interactive, trees, two pointers	1800	x4529
2032C	Trinity binary search, math, sortings, two pointers	1400	x11114
2032B	Medians constructive algorithms, greedy, implementation, math	1100	x15494
2032A	Circuit greedy, implementation, math, number theory	800	x20222
2031F	Penchick and Even Medians binary search, constructive algorithms, interactive, probabilities	2800	x247
2031E	Penchick and Chloe's Trees data structures, dfs and similar, dp, greedy, implementation, math, sortings, trees	2100	x1624
2031D	Penchick and Desert Rabbit binary search, data structures, dfs and similar, dp, dsu, greedy, implementation, two pointers	1700	x5361
2031C	Penchick and BBQ Buns constructive algorithms, math, number theory	1300	x9248
2031B	Penchick and Satay Sticks brute force, greedy, sortings	900	x13426
2031A	Penchick and Modern Monument constructive algorithms, dp, greedy, math	800	x14637
2030G2	The Destruction of the Universe (Hard Version) combinatorics, math	3100	x109
2030G1	The Destruction of the Universe (Easy Version) combinatorics, greedy, math	2900	x149
2030F	Orangutan Approved Subarrays binary search, data structures, dp, greedy, implementation, two pointers	2400	x681
2030E	MEXimize the Score combinatorics, data structures, dp, greedy, implementation, math	2200	x1325
2030D	QED's Favorite Permutation data structures, implementation, sortings	1700	x6225
2030C	A TRUE Battle brute force, games, greedy	1100	x15722
2030B	Minimise Oneness combinatorics, constructive algorithms, games, math	800	x20028
2030A	A Gift From Orangutan constructive algorithms, greedy, math, sortings	800	x23377
2029I	Variance Challenge flows, graphs, greedy	3400	x27
2029H	Message Spread bitmasks, brute force, combinatorics, dp	3500	x42
2029G	Balanced Problem data structures, dp	3000	x125
2029F	Palindrome Everywhere constructive algorithms, graphs, greedy	2500	x616
2029E	Common Generator brute force, constructive algorithms, math, number theory	2100	x2383
2029D	Cool Graph constructive algorithms, data structures, dfs and similar, dsu, graphs, greedy, trees	1900	x2634
2029C	New Rating binary search, data structures, dp, greedy	1700	x4799
2029B	Replacement constructive algorithms, games, strings	1100	x8191
2029A	Set greedy, math	800	x10908
2028F	Alice's Adventures in Addition bitmasks, brute force, dp, implementation	2700	x300
2028E	Alice's Adventures in the Rabbit Hole combinatorics, dfs and similar, dp, games, greedy, math, probabilities, trees	2300	x1118

←