Problemset - Codeforces

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Codeforces Round (Div. 2)
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Problems

#	Name
2276G	Elimination of Players combinatorics, dp, math		x132
2276F	Permutation Coloring Game brute force, dp, dsu, games, greedy, implementation, math		x501
2276C	Subarrays math, number theory		x9045
2276A	Perfect Sandwiches greedy, math		x14349
2275H	A Problem to Warm Up the Eyebrows combinatorics, combinatorics, dp, dp, math, math		x555
2275G	Copper Squander binary search, data structures, dsu, graphs, greedy, math, sortings, ternary search		x1357
2275F	Tea Blend hashing, math, number theory		x2249
2274A	The Projections of Paco dfs and similar, dp, hashing, implementation, math		x6542
2273F	Pancho's Permutation constructive algorithms, dp, greedy, math		x89
2273D	Aura Battle brute force, implementation, interactive, math		x230
2273C	Matrix Puzzle brute force, data structures, implementation, math, matrices		x576
2273B	Robot Championship constructive algorithms, math		x1332
2271C	XOR Problem bitmasks, constructive algorithms, graphs, greedy, math		x4800
2271A	Robot Odd Moves constructive algorithms, math		x10486
2269A	SauSaGe Bank greedy, math	800	x20124
2268E	Kia Kio and Tree of Life data structures, fft, math, trees	2700	x403
2268B	What a SauSaGe! It's All Meat bitmasks, brute force, data structures, math	1500	x6568
2267F2	XOR Transformations (Hard Version) bitmasks, brute force, data structures, dfs and similar, greedy, math, sortings, strings, trees	2300	x937
2267E	Clean Substrings combinatorics, data structures, math	2000	x2012
2267C	GCD Treasury greedy, math, number theory	1200	x10940
2266G	Modular Tree dfs and similar, dp, greedy, math, number theory, trees	2200	x996
2266F	MEX Replacement binary search, brute force, greedy, implementation, math, sortings	2000	x1962
2266E	Prime Destruction brute force, dp, math, number theory	1400	x7347
2266D	Falling Concrete constructive algorithms, data structures, math, sortings	1400	x9148
2266B	Three Piles games, greedy, math	800	x26471
2264F	Deranged Calculator constructive algorithms, implementation, math	2800	x403
2264D	Dr. Agos's Dark Mode brute force, chinese remainder theorem, constructive algorithms, math, strings	1900	x2469
2264C	Madamant's Skating Dynasty combinatorics, math, sortings	1400	x7416
2264B	Knife's Pill Farm data structures, greedy, math	1000	x11822
2262F	Rank Removal math	3500	x230
2262E	Paired Bracket Sequences combinatorics, math	3100	x223
2262C	Traveling the World combinatorics, constructive algorithms, graphs, greedy, math	2300	x1023
2262A2	Floor of MEX (Hard Version) dp, implementation, math	1800	x3167
2261F1	Plegma II: Ask Me Any Cell (Easy Version) brute force, constructive algorithms, dp, greedy, math		x266
2261D1	Come Be My Friend, Don't Be So Scared (Easy Version) constructive algorithms, math		x5023
2261C	I Know About a Million Things games, math		x7213
2261B	What's the Capital of France? bitmasks, greedy, math		x6684
2261A	Hey, It's Me, Souvlakity games, math		x8869
2260G	Sortable Permutations brute force, combinatorics, math, number theory	2900	x251
2260E	Cyclic Balance binary search, constructive algorithms, dp, math	2000	x2084
2260B	Monocarp and Projects brute force, math, number theory	900	x16477
2259H	Treasure Map Destruction (Counting Version) dfs and similar, dp, dsu, graphs, math	2200	x1021
2259G	Index Removal binary search, data structures, math	1900	x2744
2259F	Binary Bubble Sort Inversions data structures, math, two pointers	1800	x3673
2259B	Minus Two math, number theory, number theory, number theory, number theory, number theory	800	x25421
2258E	DivMEX data structures, math, math, number theory	2400	x967
2258B2	Carrot Chopdown (Hard Version) brute force, greedy, implementation, math	1600	x5273
2258B1	Carrot Chopdown (Easy Version) brute force, games, math	900	x16085
2258A	Odd Eraser math	800	x20011
2257D	Bermuda Rectangle binary search, implementation, math, number theory, two pointers	1600	x6809
2257B	Gigantomachy math, math	800	x19549
2256B	Domino Tiles implementation, math	1000	x17496
2256A	Three Numbers on the Blackboard math, math, math, math, sortings	800	x26388
2255F	Who Will Witness the End? fft, math, math	3100	x310
2255D	How Long Until Nothing Remains? binary search, bitmasks, data structures, greedy, math, sortings	2300	x1749
2255C	Even If the World Turns communication, constructive algorithms, expression parsing, greedy, interactive, math, number theory	2100	x1684
2255B	A Ribbon for Tomorrow combinatorics, math	1600	x7586
2254F	Whiplash bitmasks, constructive algorithms, math, sortings	1900	x3679
2254D	Silhouette constructive algorithms, math, sortings	1300	x11418
2253F	4-beauty bitmasks, dp, graphs, math, number theory	2600	x580
2253D	Hypercarp and Interdimensional Jumps binary search, brute force, geometry, greedy, implementation, math	1800	x3736
2253A	The Best Card greedy, math, number theory	800	x22259
2252E	Generational Triplets bitmasks, combinatorics, dp, math	2100	x2078
2252B	Always Changing dp, greedy, math, strings	1100	x13394
2250A	Threshold Movement brute force, implementation, math	800	x19621
2249D	Xor Permutation Matrix bitmasks, constructive algorithms, math	2300	x1208
2249B	Permutation Cuts combinatorics, implementation, math	1700	x4689
2248G	No Balance Left bitmasks, dp, math, number theory	3000	x265
2248F	Matrix Elimination binary search, greedy, math	2500	x749
2248E	Excuse for Breaks binary search, brute force, greedy, math, two pointers	2000	x2126
2248D	Good Pair Queries constructive algorithms, greedy, math	1400	x7841
2247C	Inversion of a Subsequence greedy, math	1100	x13781
2246E	lce4113 and Security Game bitmasks, interactive, interactive, math, probabilities	2600	x751
2246C	0mar and Alternating Sums combinatorics, dp, math	1400	x9623
2245C	MEXOR bitmasks, constructive algorithms, math	1400	x7472
2244E	Masha and the Garland data structures, dp, greedy, implementation, math, number theory, strings	1400	x9539
2244D	Yaroslav and Productivity constructive algorithms, dp, greedy, math, number theory	1200	x14208
2244C	Stepan and Permutation constructive algorithms, dfs and similar, dsu, greedy, math, number theory, sortings, sortings, sortings	1100	x18399
2244B	Nikita and Books greedy, greedy, math, math, sortings, sortings	800	x25796
2242E	Product of Closures bitmasks, brute force, constructive algorithms, greedy, implementation, math, number theory	2200	x1658
2242B	Predominant Frequency Division data structures, greedy, implementation, math	1000	x18279
2241G	Summmon binary search, data structures, greedy, implementation, math, number theory	2400	x1049
2241F	A Bit Odd data structures, games, greedy, math	1700	x5320
2241E	Fair and Square combinatorics, dp, graphs, math, number theory, trees	1600	x6967
2241D	An Alternative Way dp, greedy, math	1100	x17293
2241B	Good times Good times constructive algorithms, dfs and similar, math	1100	x22040
2241A	Divide and Conquer greedy, math, number theory	800	x36067
2240B	AI Finds Nothing Here combinatorics, math	1100	x11487
2239D	Hunting the Beast combinatorics, dp, graphs, math	2500	x735
2239C	Revival binary search, data structures, math, two pointers	2200	x1682
2239B	Decidophobia greedy, math, sortings, two pointers	1600	x7623
2239A	Nim Game Is XOR Game constructive algorithms, games, greedy, math	1300	x9809
2238F	Infinite Work combinatorics, graphs, greedy, math, trees	2600	x509
2238D	Storming Arasaka greedy, math, number theory	1500	x8288
2238B	Crimson Triples dp, math, number theory	900	x17069
2238A	Another Puzzle from Papyrus greedy, math, sortings	800	x20579
2237G	Send GCDs communication, constructive algorithms, interactive, math, number theory	2900	x466
2237D	Fullmetal Bitchemist constructive algorithms, greedy, math	1600	x6785
2236F2	Elections in Saransk (hard version) combinatorics, dp, dp, dp, math, number theory	2200	x1286
2236D	Brand New Tatar TV Show binary search, constructive algorithms, dp, games, games, math	1300	x13560

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