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	x436
2276F	Permutation Coloring Game brute force, dp, dsu, games, greedy, implementation, math	2400	x842
2276E	Good Substrings combinatorics, data structures, data structures, dp, greedy, greedy, strings	1800	x3235
2275H	A Problem to Warm Up the Eyebrows combinatorics, combinatorics, dp, dp, math, math	2400	x693
2275G	Copper Squander binary search, data structures, dsu, graphs, greedy, math, sortings, ternary search	1900	x1751
2275F	Tea Blend hashing, math, number theory	1800	x2729
2273F	Pancho's Permutation constructive algorithms, dp, greedy, math	3500	x152
2273E	Six-Seven Bags brute force, greedy, interactive	2900	x159
2273D	Aura Battle brute force, implementation, interactive, math	2600	x294
2273C	Matrix Puzzle brute force, data structures, implementation, math, matrices	2100	x811
2273B	Robot Championship constructive algorithms, math	1900	x1741
2271H2	Personal Issues (Hard Version) games, games, trees, trees	3300	x82
2271H1	Personal Issues (Easy Version) dp, games, games, trees, trees	2800	x146
2271G	Grid Filling constructive algorithms, constructive algorithms, greedy, greedy, implementation, implementation	3100	x116
2271F	Beautiful Pillers constructive algorithms, constructive algorithms, data structures, dp, greedy, implementation	2300	x1040
2271E	Array Emptying binary search, binary search, data structures, greedy, greedy	2100	x1530
2271D	Target Infection binary search, brute force, greedy, implementation, two pointers	1700	x3019
2268F	Deglado constructive algorithms	3500	x332
2268E	Kia Kio and Tree of Life data structures, fft, math, trees	2700	x427
2268D	AghaBalaSar and Hamed data structures, dp, trees	2600	x765
2268C	KiaKio and Energy Intervals binary search, bitmasks, data structures, divide and conquer, dsu, greedy, trees, two pointers	2300	x1205
2267G	New LRT divide and conquer, dp, fft	2600	x325
2267F2	XOR Transformations (Hard Version) bitmasks, brute force, data structures, dfs and similar, greedy, math, sortings, strings, trees	2300	x970
2267F1	XOR Transformations (Easy Version) bitmasks, brute force, implementation, sortings	1700	x4303
2267E	Clean Substrings combinatorics, data structures, math	2000	x2091
2266H	Deque Malfunction binary search, data structures, dp, greedy	2400	x482
2266G	Modular Tree dfs and similar, dp, greedy, math, number theory, trees	2200	x1075
2266F	MEX Replacement binary search, brute force, greedy, implementation, math, sortings	2000	x2046
2264F	Deranged Calculator constructive algorithms, implementation, math	2800	x422
2264E2	A Prime Flood (Hard Version) brute force, combinatorics, combinatorics, combinatorics, dp, dp, number theory, number theory	2700	x534
2264E1	A Prime Flood (Easy Version) combinatorics, dp, number theory	2200	x1459
2264D	Dr. Agos's Dark Mode brute force, chinese remainder theorem, constructive algorithms, math, strings	1900	x2639
2262F	Rank Removal math	3500	x274
2262E	Paired Bracket Sequences combinatorics, math	3100	x251
2262D	PLUSworld constructive algorithms, graphs, greedy	2900	x406
2262C	Traveling the World combinatorics, constructive algorithms, graphs, greedy, math	2300	x1083
2262B	Culling Game binary search, data structures, implementation, two pointers	2000	x2181
2262A2	Floor of MEX (Hard Version) dp, implementation, math	1800	x3287
2261H	Oh Tree Tree Tree, No Need to Leave bitmasks, communication, constructive algorithms, dfs and similar, interactive, trees	3500	x166
2261G	1 2 3 and XOR, Where Did Everybody Go? bitmasks, data structures, divide and conquer, dp, greedy, sortings, two pointers	2800	x342
2261F2	Plegma II: Ask Me Any Cell (Hard Version) constructive algorithms	3300	x120
2261F1	Plegma II: Ask Me Any Cell (Easy Version) constructive algorithms, greedy, math	2500	x387
2261E	What Does the Cow Say? binary search, data structures, dfs and similar, greedy, trees	1800	x2313
2261D2	Come Be My Friend, Don't Be So Scared (Hard Version) constructive algorithms, data structures, dsu, graphs, hashing, trees, two pointers	2400	x595
2260G	Sortable Permutations brute force, combinatorics, math, number theory	2900	x314
2260F	Edge Three-Coloring brute force, dfs and similar, dsu, graphs, trees	2500	x721
2260E	Cyclic Balance binary search, constructive algorithms, dp, math	2000	x2222
2260D	Signs of Prefix Sums brute force, constructive algorithms, dfs and similar, dp, implementation	1700	x5523
2259H	Treasure Map Destruction (Counting Version) dfs and similar, dp, dsu, graphs, math	2200	x1055
2259G	Index Removal binary search, data structures, math	1900	x2852
2259F	Binary Bubble Sort Inversions data structures, math, two pointers	1800	x3790
2258F	Plus Minus Tree data structures, dfs and similar, dp, graphs, greedy, trees	3000	x353
2258E	DivMEX data structures, math, math, number theory	2400	x1026
2258D	Magic Tiles dp, greedy, implementation	2500	x600
2258C	Far Cities interactive, trees, two pointers	1600	x5671
2258B2	Carrot Chopdown (Hard Version) brute force, greedy, implementation, math	1600	x5415
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
2257D	Bermuda Rectangle binary search, implementation, math, number theory, two pointers	1600	x6960
2255F	Who Will Witness the End? fft, math, math	3100	x319
2255E2	What Will Remain at the End? (Hard Version) data structures	3400	x286
2255E1	What Will Remain at the End? (Easy Version) brute force, data structures, data structures	2900	x315
2255D	How Long Until Nothing Remains? binary search, bitmasks, data structures, greedy, math, sortings	2300	x1791
2255C	Even If the World Turns communication, constructive algorithms, expression parsing, greedy, interactive, math, number theory	2100	x1719
2255B	A Ribbon for Tomorrow combinatorics, math	1600	x7719
2254G	Nightcrawler data structures, dfs and similar, dp, greedy, greedy, sortings, trees	2200	x1410
2254F	Whiplash bitmasks, constructive algorithms, math, sortings	1900	x3765
2253F	4-beauty bitmasks, dp, graphs, math, number theory	2600	x599
2253E	Diameter Intersections brute force, dfs and similar, fft, graphs, implementation, trees	2200	x1531
2253D	Hypercarp and Interdimensional Jumps binary search, brute force, geometry, greedy, implementation, math	1800	x3819
2252F	Spectral Components dfs and similar, dp, dp, greedy, sortings, trees	2600	x615
2252E	Generational Triplets bitmasks, combinatorics, dp, math	2100	x2141
2252D	Array Replacement greedy, sortings	1700	x5986
2249F	Even Simple Path constructive algorithms, graphs, shortest paths	3200	x227
2249E2	String (Hard Version) divide and conquer, implementation, strings	3000	x273
2249E1	String (Easy Version) divide and conquer, implementation, strings	2800	x312
2249D	Xor Permutation Matrix bitmasks, constructive algorithms, math	2300	x1226
2249C	Double-Rift Dial data structures, dfs and similar, dsu, implementation, two pointers	2000	x1940
2249B	Permutation Cuts combinatorics, implementation, math	1700	x4758
2248G	No Balance Left bitmasks, dp, math, number theory	3000	x268
2248F	Matrix Elimination binary search, greedy, math	2500	x760
2248E	Excuse for Breaks binary search, brute force, greedy, math, two pointers	2000	x2157
2247F	Paths on a Grid data structures, dp, hashing	2900	x643
2247E	Build a Tree constructive algorithms, trees, two pointers	2300	x1243
2247D2	XOR Sorting (Hard Version) bitmasks, data structures, greedy	2000	x2660
2246F	Whoname and Unsorted Array constructive algorithms	2900	x371
2246E	lce4113 and Security Game bitmasks, interactive, interactive, math, probabilities	2600	x764
2246D	diss_quack and Array Game bitmasks, brute force, games, greedy	1900	x3561
2245H	Connect Connect See brute force, brute force, data structures	3500	x121
2245G	NPC Challenge divide and conquer, interactive	3000	x207
2245F	Familiar? brute force, combinatorics, dp	2800	x475
2245E	Tom and Jerry dfs and similar, dsu, games, trees	2300	x1252
2245D2	Construct an Array (Hard Version) 2-sat, constructive algorithms, dfs and similar, graphs, implementation	2000	x2365
2245D1	Construct an Array (Easy Version) dfs and similar, implementation, sortings	1700	x4132
2244G	Yura and Deadlines data structures, dp	1900	x3264
2244F	Anya Loves Trees! dfs and similar, dp, greedy, trees, trees	1700	x4903
2242F	Summer Vacation data structures, data structures, data structures, dp, dp, probabilities, trees	2800	x531
2242E	Product of Closures bitmasks, brute force, constructive algorithms, greedy, implementation, math, number theory	2200	x1680
2242D	Two Digit Strings dp, strings	1600	x8621

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