Problemset - Codeforces

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Codeforces Round 1133 (Div. 1)
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Codeforces Round 1133 (Div. 2)
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Problems

#	Name
2276G	Elimination of Players combinatorics, dp, math	2100	x442
2276F	Permutation Coloring Game brute force, dp, dsu, games, greedy, implementation, math	2400	x845
2276E	Good Substrings combinatorics, data structures, data structures, dp, greedy, greedy, strings	1800	x3244
2275H	A Problem to Warm Up the Eyebrows combinatorics, combinatorics, dp, dp, math, math	2400	x694
2275E	Repentance Is Already on the Way dp, implementation	1500	x5459
2273F	Pancho's Permutation constructive algorithms, dp, greedy, math	3500	x155
2271H1	Personal Issues (Easy Version) dp, games, games, trees, trees	2800	x146
2271F	Beautiful Pillers constructive algorithms, constructive algorithms, data structures, dp, greedy, implementation	2300	x1042
2268D	AghaBalaSar and Hamed data structures, dp, trees	2600	x766
2267G	New LRT divide and conquer, dp, fft	2600	x325
2266H	Deque Malfunction binary search, data structures, dp, greedy	2400	x482
2266G	Modular Tree dfs and similar, dp, greedy, math, number theory, trees	2200	x1076
2264E2	A Prime Flood (Hard Version) brute force, combinatorics, combinatorics, combinatorics, dp, dp, number theory, number theory	2700	x537
2264E1	A Prime Flood (Easy Version) combinatorics, dp, number theory	2200	x1461
2262A2	Floor of MEX (Hard Version) dp, implementation, math	1800	x3289
2261G	1 2 3 and XOR, Where Did Everybody Go? bitmasks, data structures, divide and conquer, dp, greedy, sortings, two pointers	2800	x344
2260E	Cyclic Balance binary search, constructive algorithms, dp, math	2000	x2224
2260D	Signs of Prefix Sums brute force, constructive algorithms, dfs and similar, dp, implementation	1700	x5526
2259H	Treasure Map Destruction (Counting Version) dfs and similar, dp, dsu, graphs, math	2200	x1058
2258F	Plus Minus Tree data structures, dfs and similar, dp, graphs, greedy, trees	3000	x353
2258D	Magic Tiles dp, greedy, implementation	2500	x600
2257F2	Beaver's Jumping Track (Hard Version) data structures, dp, matrices	2700	x495
2257F1	Beaver's Jumping Track (Easy Version) data structures, dp, matrices	2500	x766
2257E	Busy Beaver brute force, data structures, divide and conquer, dp, greedy, implementation, sortings	2100	x2323
2254G	Nightcrawler data structures, dfs and similar, dp, greedy, greedy, sortings, trees	2200	x1415
2253F	4-beauty bitmasks, dp, graphs, math, number theory	2600	x599
2252F	Spectral Components dfs and similar, dp, dp, greedy, sortings, trees	2600	x617
2252E	Generational Triplets bitmasks, combinatorics, dp, math	2100	x2142
2248G	No Balance Left bitmasks, dp, math, number theory	3000	x268
2247F	Paths on a Grid data structures, dp, hashing	2900	x644
2245F	Familiar? brute force, combinatorics, dp	2800	x475
2244G	Yura and Deadlines data structures, dp	1900	x3270
2244F	Anya Loves Trees! dfs and similar, dp, greedy, trees, trees	1700	x4909
2242F	Summer Vacation data structures, data structures, data structures, dp, dp, probabilities, trees	2800	x531
2242D	Two Digit Strings dp, strings	1600	x8623
2241E	Fair and Square combinatorics, dp, graphs, math, number theory, trees	1600	x7106
2239F	Colorful Works dp, fft, games, implementation	3500	x266
2239D	Hunting the Beast combinatorics, dp, graphs, math	2500	x747
2238E	Cake Trial dp, greedy	2100	x2371
2237I2	DBFS Order (Hard Version) dp, trees	3500	x130
2237I1	DBFS Order (Easy Version) dp, trees	3500	x90
2237F	Paint the Array data structures, dp, greedy	2400	x1216
2236F2	Elections in Saransk (hard version) combinatorics, dp, dp, dp, math, number theory	2200	x1304
2236E	Friendly Gifts brute force, dp	1700	x6999
2234G	Stripe, Token and Two Players data structures, dp, games	2700	x427
2234D	XOR, Expression and Two Binary Numbers bitmasks, divide and conquer, dp, math, number theory	1500	x9328
2233F	Shortest GCD Paths dp, graphs, math, number theory, shortest paths, shortest paths	2800	x567
2232D	Magical Tiered Cake constructive algorithms, constructive algorithms, dfs and similar, dp, greedy	2000	x2911
2231E	Graph Cutting dfs and similar, dp, math, trees	2300	x1275
2230F	Game on Growing Tree binary search, dfs and similar, divide and conquer, dp, games, implementation, trees	2700	x560
2230D	Good Schedule dp, greedy	1700	x5777
2229I	The Endians dp, trees	3500	x260
2229H	Wowee Binary String combinatorics, dp, strings	3300	x306
2229G	Roadworks binary search, data structures, dp, greedy, two pointers	3000	x401
2229F	Load Unbalancing binary search, bitmasks, dp, greedy	2400	x1214
2229E	Deconstruction Tree combinatorics, data structures, dp, graphs, trees	2100	x2169
2228F	Momoyo and the Network binary search, dfs and similar, dfs and similar, divide and conquer, divide and conquer, dp, trees	2700	x391
2228C2	Cirno and Number (Hard Version) binary search, dfs and similar, dp, greedy, implementation	1600	x6695
2228C1	Cirno and Number (Easy Version) binary search, brute force, dp, greedy, implementation	1500	x8602
2227H	Fallen Leaves dfs and similar, dp, dp, trees, trees	2100	x1889
2227F	It Just Keeps Going Sideways binary search, data structures, data structures, dp, dp, greedy, greedy, math, math	1700	x4832
2226D	Reserved Reversals constructive algorithms, dp, greedy, math	1900	x3477
2223B	Zhily and Barknights binary search, data structures, dp, math, sortings, two pointers	1600	x4184
2222H	Counting Sort? brute force, combinatorics, dp	3500	x166
2222C	Median Partition dp, math	1500	x6746
2219C	Coloring a Red Black Tree dfs and similar, dp, greedy, math, probabilities, trees, trees	2300	x1572
2217H	Closer dfs and similar, dp, trees	2800	x308
2217G	Down the Pivot combinatorics, dp, math, trees	2600	x487
2217F	Interval Game bitmasks, combinatorics, constructive algorithms, dp, games, games, greedy, greedy, math, probabilities	2400	x984
2215D	EXPloration, EXPloitation, and Gain Some EXPerience! bitmasks, brute force, dp, greedy, implementation	2800	x190
2215A	Interval Mod constructive algorithms, dp, greedy, math	1700	x4242
2211F	Learning Binary Search combinatorics, divide and conquer, dp, math	2400	x1100
2211E	Minimum Path Cover brute force, dp, greedy, interactive, interactive, math, number theory, trees	2500	x1114
2210C2	A Simple GCD Problem (Hard Version) dp, greedy, number theory	2100	x2504
2209E	A Trivial String Problem brute force, dp, hashing, string suffix structures, strings	2200	x2125
2208E	Counting Cute Arrays combinatorics, dp	2700	x589
2207F	Hanabi binary search, data structures, dp, dsu, flows, graph matchings, graphs, greedy	3000	x354
2207D	Boxed Like a Fish dfs and similar, dp, games, shortest paths, trees	2200	x2432
2207C	Where's My Water? data structures, divide and conquer, dp, math	1600	x6794
2206I	Growth Factor combinatorics, dp, math, number theory	2900	x248
2206D	Christmas Tree Un-decoration data structures, dp, trees	2600	x374
2205E	Simons and Dividing the Rhythm combinatorics, data structures, dp, dsu, math, string suffix structures, strings, strings, strings	2100	x1990
2205D	Simons and Beating Peaks data structures, data structures, divide and conquer, dp, dp, greedy, implementation, trees	1700	x5974
2204G	Grid Path dp, dp, graphs, matrices	2700	x637
2203F	Binary Search with One Swap binary search, divide and conquer, dp, hashing, math, two pointers	2600	x498
2201C	Rigged Bracket Sequence combinatorics, dp, greedy	2000	x2344
2201A2	Lost Civilization (Hard Version) data structures, dp	1700	x5787
2200G	Operation Permutation combinatorics, dp, math, probabilities	2200	x1378
2199H	Sum of MEX *special problem, combinatorics, data structures, dp, math	2300	x122
2196E2	Fuzzy Concatenation (Hard version) binary search, bitmasks, data structures, dp, greedy, string suffix structures	3000	x263
2196D	Double Bracket Sequence data structures, dp, expression parsing, flows, greedy, strings	2500	x1127
2196C2	Interactive Graph (Hard Version) combinatorics, dfs and similar, dp, graphs, interactive	2000	x2892
2196C1	Interactive Graph (Simple Version) binary search, combinatorics, dfs and similar, dp, graphs, interactive	1800	x4079
2195G	Idiot First Search and Queries binary search, data structures, dp, graphs, trees	2300	x1268
2195F	Parabola Independence dp, graphs, greedy, math, sortings	2000	x3108
2195E	Idiot First Search dfs and similar, dp, trees	1500	x10081
2194F2	Again Trees... (hard version) bitmasks, data structures, dfs and similar, dp, fft, trees	3000	x252
2194F1	Again Trees... (Easy Version) bitmasks, dfs and similar, dp, trees	2300	x1065
2194E	The Turtle Strikes Back dp, graphs, greedy, implementation	2000	x3066
2193H	Remove the Grail Tree dfs and similar, dp, graphs, greedy, implementation, trees	2400	x1203

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