Problemset - Codeforces

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Codeforces Round 945 (Div. 2)
2 days
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Problems

#	Name
1103E	Radix sum fft, math, number theory	3400	x220
1268E	Happy Cactus dp	3400	x221
1515I	Phoenix and Diamonds binary search, data structures, sortings	3400	x225
914H	Ember and Storm's Tree Game combinatorics, dp, games, trees	3400	x229
627F	Island Puzzle dfs and similar, dsu, graphs, trees	3400	x233
1684H	Hard Cut constructive algorithms, dfs and similar, divide and conquer, math	3400	x235
1572F	Stations data structures	3400	x240
1239F	Swiper, no swiping! graphs, implementation	3400	x245
1817E	Half-sum brute force, divide and conquer, greedy	3400	x250
1039E	Summer Oenothera Exhibition data structures	3400	x265
1693F	I Might Be Wrong binary search, greedy, two pointers	3400	x275
794G	Replace All combinatorics, dp, math	3400	x323
1276F	Asterisk Substrings string suffix structures	3400	x333
1548E	Gregor and the Two Painters data structures, divide and conquer, graphs, greedy, math	3400	x339
715E	Complete the Permutations combinatorics, fft, graphs, math	3400	x344
1801G	A task for substrings data structures, string suffix structures, strings	3400	x350
793G	Oleg and chess data structures, divide and conquer, flows, graph matchings	3400	x358
1827E	Bus Routes binary search, constructive algorithms, dfs and similar, greedy, trees	3400	x363
1693E	Outermost Maximums data structures, greedy	3400	x371
1710D	Recover the Tree constructive algorithms, trees	3400	x408
1482H	Exam data structures, string suffix structures, trees	3400	x433
1137F	Matches Are Not a Child's Play data structures, trees	3400	x459
1097E	Egor and an RPG game constructive algorithms, greedy	3400	x465
757G	Can Bash Save the Day? data structures, divide and conquer, graphs, trees	3400	x480
1630F	Making It Bipartite flows, graph matchings, graphs, number theory	3400	x508
1119F	Niyaz and Small Degrees data structures, dp, trees	3400	x656
843D	Dynamic Shortest Path graphs, shortest paths	3400	x756
1491H	Yuezheng Ling and Dynamic Tree data structures, trees	3400	x764
1912C	Cactus Transformation constructive algorithms	3300	x45
1666B	Budget Distribution	3300	x53
1912I	Innovative Washing Machine geometry, math, two pointers	3300	x54
949F	Astronomy geometry, probabilities	3300	x57
1578I	Interactive Rays geometry, interactive	3300	x58
1936F	Grand Finale: Circles binary search, geometry	3300	x66
865F	Egg Roulette bitmasks, brute force, divide and conquer, math, meet-in-the-middle	3300	x67
737F	Dirty plates constructive algorithms, math	3300	x69
1965F	Conference data structures, flows	3300	x73
1938D	Bánh Bò	3300	x77
771F	Bear and Isomorphic Points geometry, two pointers	3300	x78
1949A	Grove brute force, dfs and similar, dp, geometry, probabilities	3300	x81
901E	Cyclic Cipher fft, math	3300	x84
1666A	Admissible Map	3300	x99
1381E	Origami geometry, math, sortings	3300	x100
1737F	Ela and Prime GCD constructive algorithms, math, number theory	3300	x117
1477E	Nezzar and Tournaments data structures, greedy	3300	x117
1266G	Permutation Concatenation string suffix structures	3300	x117
868G	El Toll Caves math	3300	x119
865E	Hex Dyslexia bitmasks, brute force, dp, graphs	3300	x119
737E	Tanya is 5! graph matchings, graphs, greedy, schedules	3300	x119
696F	...Dary! binary search, geometry, two pointers	3300	x119
1930H	Interactive Mex Tree constructive algorithms, dfs and similar, interactive, trees	3300	x123
1580F	Problems for Codeforces combinatorics, fft, math	3300	x130
865G	Flowers and Chocolate combinatorics, math, matrices	3300	x132
1530G	What a Reversal constructive algorithms	3300	x133
1209H	Moving Walkways data structures, greedy, math	3300	x136
1017H	The Films brute force	3300	x138
1718F	Burenka, an Array and Queries data structures, math, number theory	3300	x145
1361F	Johnny and New Toy data structures, implementation, math	3300	x146
1615G	Maximum Adjacent Pairs constructive algorithms, graph matchings	3300	x147
1886F	Diamond Theft data structures, greedy	3300	x159
725G	Messages on a Tree	3300	x161
1450H2	Multithreading (Hard Version) combinatorics, implementation, math	3300	x165
1284G	Seollal graphs	3300	x165
1804H	Code Lock bitmasks, dp	3300	x169
1329E	Dreamoon Loves AA binary search, greedy	3300	x172
855G	Harry Vs Voldemort dfs and similar, dp, graphs, trees	3300	x199
1787H	Codeforces Scoreboard binary search, data structures, dp, geometry	3300	x201
1740H	MEX Tree Manipulation data structures, trees	3300	x201
1870G	MEXanization data structures	3300	x202
1641E	Special Positions combinatorics, divide and conquer, fft, math	3300	x203
1392I	Kevin and Grid fft, graphs, math	3300	x203
1060H	Sophisticated Device constructive algorithms	3300	x210
1500E	Subset Trick binary search, data structures	3300	x212
618G	Combining Slimes dp, math, matrices, probabilities	3300	x220
1188E	Problem from Red Panda combinatorics	3300	x224
1750G	Doping combinatorics, dp, math	3300	x225
1738H	Palindrome Addicts data structures, strings	3300	x227
1943E2	MEX Game 2 (Hard Version) binary search, greedy, two pointers	3300	x231
1548D2	Gregor and the Odd Cows (Hard) brute force, geometry, math, number theory	3300	x238
1876E	Ball-Stackable constructive algorithms, data structures, dp, trees	3300	x246
607E	Cross Sum binary search, geometry	3300	x248
1427G	One Billion Shades of Grey flows, graphs	3300	x257
1254E	Send Tree to Charlie combinatorics, dfs and similar, dsu, trees	3300	x260
1466H	Finding satisfactory solutions combinatorics, dp, graphs, greedy, math	3300	x261
1054G	New Road Network constructive algorithms, greedy, math	3300	x261
1696G	Fishingprince Plays With Array Again brute force, data structures, geometry, math	3300	x265
1083F	The Fair Nut and Amusing Xor data structures	3300	x265
704E	Iron Man data structures, geometry, trees	3300	x272
1528F	AmShZ Farm combinatorics, fft, math	3300	x275
1495F	Squares constructive algorithms, data structures, dp, graphs, trees	3300	x281
1726G	A Certain Magical Party combinatorics, data structures, greedy, sortings	3300	x282
1718D	Permutation for Burenka data structures, graph matchings, greedy, math, trees	3300	x288
1172E	Nauuo and ODT data structures	3300	x289
1322E	Median Mountain Range data structures	3300	x294
1396D	Rainbow Rectangles data structures, sortings, two pointers	3300	x297
1237H	Balanced Reversals constructive algorithms	3300	x303
1753E	N Machines binary search, brute force, greedy	3300	x309
1556G	Gates to Another World bitmasks, data structures, dsu, two pointers	3300	x309
1583H	Omkar and Tours data structures, divide and conquer, sortings, trees	3300	x313
1148G	Gold Experience constructive algorithms, graphs, math, number theory, probabilities	3300	x315