Problemset - Codeforces

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Codeforces Round (Div. 2)
5 days

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Problems

#	Name
2231F	Quadratic Jumps brute force, constructive algorithms, greedy, math, number theory		x429
2231E	Graph Cutting dfs and similar, dp, math, trees		x666
2231D	Maximum Prefix Sums constructive algorithms, greedy, implementation, two pointers		x2402
2231C	Chipmunk Theo and Equality implementation, sortings		x7980
2231B	Another Sorting Problem constructive algorithms		x12741
2231A	Construct an Array constructive algorithms		x18069
2230F	Game on Growing Tree binary search, dfs and similar, divide and conquer, dp, games, implementation, trees		x330
2230E	Minimum Influence binary search, data structures, greedy, implementation, math, sortings, two pointers		x1021
2230D	Good Schedule dp, greedy		x3588
2230C	Arrange the Numbers in a Circle constructive algorithms, implementation, math		x8403
2230B	Digit String greedy, implementation, math		x12800
2230A	Optimal Purchase implementation, math		x17311
2229I	The Endians dp, trees		x42
2229H	Wowee Binary String combinatorics, dp, strings		x72
2229G	Roadworks data structures, dp, greedy		x143
2229F	Load Unbalancing binary search, bitmasks, brute force, dp, greedy		x647
2229E	Deconstruction Tree combinatorics, data structures, dp, graphs, trees		x1188
2229D	Me When Median Problem binary search, greedy		x3335
2229C2	We Be Flipping (Hard Version) constructive algorithms, greedy		x5698
2229C1	We Be Flipping (Easy Version) constructive algorithms, greedy		x10797
2229B	Absolute Cinema greedy, math		x12295
2229A	Slimes on a Line brute force, greedy, math		x12917
2228F	Momoyo and the Network binary search, dfs and similar, dfs and similar, divide and conquer, divide and conquer, dp, trees		x244
2228E2	Amanojaku and Sequence (Hard Version) combinatorics, data structures, implementation, math		x234
2228E1	Amanojaku and Sequence (Easy Version) combinatorics, math		x478
2228D	Sanae, Cross and Color binary search, data structures, implementation		x2207
2228C2	Cirno and Number (Hard Version) binary search, dfs and similar, dp, greedy, implementation		x4710
2228C1	Cirno and Number (Easy Version) binary search, brute force, dp, greedy, implementation		x6507
2228B	Remilia Plays Soku games, implementation		x13773
2228A	Marisa Steals Reimu's Takeout greedy, implementation		x18165
2227H	Fallen Leaves dfs and similar, dp, dp, trees, trees		x1313
2227G	Drowning binary search, data structures, math		x1732
2227F	It Just Keeps Going Sideways binary search, data structures, data structures, dp, dp, greedy, greedy, math, math		x3466
2227E	It All Went Sideways binary search, data structures, dp, greedy		x7503
2227D	Palindromex binary search, brute force, constructive algorithms, data structures, greedy, implementation, two pointers		x10850
2227C	Snowfall constructive algorithms, math		x18733
2227B	Party Monster greedy		x22690
2227A	Koshary implementation, math		x24792
2226G	Stop Spot implementation, strings, trees		x156
2226F	Inversion Invasion math, number theory		x214
2226E	Mental Monumental (Hard Version) data structures, greedy, math, two pointers		x855
2226D	Reserved Reversals constructive algorithms, dp, greedy, math		x2639
2226C	Mental Monumental (Easy Version) binary search, data structures, greedy, math, two pointers		x6584
2226B	Everything Everywhere greedy, math, math, number theory, number theory		x11797
2226A	Disturbing Distribution greedy, math		x13074
2225G	Simple Problem brute force, graphs, greedy, number theory		x226
2225F	String Cutting binary search, brute force, brute force, greedy, hashing, string suffix structures, string suffix structures, strings, strings		x656
2225E	Covering Points with Circles constructive algorithms, geometry, math		x1167
2225D	Exceptional Segments bitmasks, brute force, math		x7141
2225C	Red-Black Pairs dp, greedy		x12231
2225B	Alternating String brute force, greedy		x15203
2225A	A Number Between Two Others greedy, math		x19104
2224B	Zhily and Mex and Max constructive algorithms, greedy, math, sortings		x6654
2224A	Zhily and Array Operating constructive algorithms, greedy		x9581
2223F	Zhily and Colorful Strings divide and conquer, fft, math		x66
2223E	Zhily and Permutation data structures, divide and conquer, trees		x23
2223D	Zhily and Cycle graphs, greedy		x287
2223C	Zhily and Signpost chinese remainder theorem, dfs and similar, math, number theory, trees		x761
2223B	Zhily and Barknights binary search, data structures, dp, math, sortings, two pointers		x2836
2223A	Zhily and Bracket Swapping constructive algorithms, greedy		x5945
2222H	Counting Sort? brute force, combinatorics, dp		x124
2222G	Statistics on Tree binary search, brute force, dfs and similar, dfs and similar, divide and conquer, graphs, trees, trees		x187
2222F	Building Tree data structures, divide and conquer, dsu, graphs, graphs, implementation		x639
2222E	Seek the Truth binary search, bitmasks, constructive algorithms, interactive		x2106
2222D	Permutation Construction constructive algorithms, data structures, sortings		x3432
2222C	Median Partition dp, math		x5152
2222B	Artistic Balance Tree greedy, sortings		x7807
2222A	A Wonderful Contest brute force, dp, math		x10738
2220B	OIE Excursion greedy		x12924
2220A	Blocked greedy, sortings		x18958
2219E	Weird Chessboard constructive algorithms, math		x110
2219D	MEX Replacement on Tree data structures, implementation, math, trees		x462
2219C	Coloring a Red Black Tree dfs and similar, dp, greedy, math, probabilities, trees, trees		x1273
2219B2	Unique Values (Hard version) binary search, bitmasks, constructive algorithms, interactive		x3397
2219B1	Unique Values (Easy version) binary search, constructive algorithms, divide and conquer, interactive, math		x3805
2219A	Grid L brute force, constructive algorithms, math, number theory		x9480
2218G	The 67th Iteration of "Counting is Fun" implementation, math	1800	x3962
2218F	The 67th Tree Problem constructive algorithms, implementation, trees	1500	x7954
2218E	The 67th XOR Problem binary search, bitmasks, brute force	1200	x15220
2218D	The 67th OEIS Problem constructive algorithms, greedy, greedy, greedy, math, math, number theory	1100	x19494
2218C	The 67th Permutation Problem constructive algorithms, greedy, math	800	x28102
2218B	The 67th 6-7 Integer Problem greedy, math	800	x35932
2218A	The 67th Integer Problem brute force, games, implementation, math	800	x37306
2217H	Closer dfs and similar, dp, trees	2800	x235
2217G	Down the Pivot combinatorics, dp, math, trees	2600	x393
2217F	Interval Game bitmasks, combinatorics, constructive algorithms, dp, games, games, greedy, greedy, math, probabilities	2300	x780
2217E	Definitely Larger binary search, constructive algorithms, data structures, graphs, greedy, sortings	2000	x2236
2217D	Flip the Bit (Hard Version) greedy, implementation, math	1900	x3512
2217C	Grid Covering chinese remainder theorem, math, number theory	1300	x11037
2217B	Flip the Bit (Easy Version) greedy, implementation	1000	x17011
2217A	The Equalizer math	800	x23203
2216B	THU Packing Puzzle greedy	1300	x4225
2216A	Course Wishes greedy	900	x5048
2215G	Maze trees	3500	x62
2215F	Research games	3500	x59
2215E	Star Map constructive algorithms, data structures, geometry, greedy, sortings	2700	x187
2215D	EXPloration, EXPloitation, and Gain Some EXPerience! bitmasks, brute force, dp, greedy, implementation	2800	x126
2215C	Oriented Journey bitmasks, brute force, communication, constructive algorithms, graphs, interactive, trees	2200	x693
2215B	RReeppeettiittiioonn binary search, brute force, implementation, math, number theory	2000	x1135
2215A	Interval Mod constructive algorithms, dp, greedy, math	1700	x3013

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