Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
1268E	Happy Cactus dp	3400	x219
1515I	Phoenix and Diamonds binary search, data structures, sortings	3400	x224
914H	Ember and Storm's Tree Game combinatorics, dp, games, trees	3400	x226
627F	Island Puzzle dfs and similar, dsu, graphs, trees	3400	x229
1684H	Hard Cut constructive algorithms, dfs and similar, divide and conquer, math	3400	x235
1572F	Stations data structures	3400	x236
1239F	Swiper, no swiping! graphs, implementation	3400	x245
1817E	Half-sum brute force, divide and conquer, greedy	3400	x249
1039E	Summer Oenothera Exhibition data structures	3400	x263
1693F	I Might Be Wrong binary search, greedy, two pointers	3400	x274
793G	Oleg and chess data structures, divide and conquer, flows, graph matchings	3400	x312
794G	Replace All combinatorics, dp, math	3400	x323
1801G	A task for substrings data structures, string suffix structures, strings	3400	x329
1276F	Asterisk Substrings string suffix structures	3400	x333
1548E	Gregor and the Two Painters data structures, divide and conquer, graphs, greedy, math	3400	x335
715E	Complete the Permutations combinatorics, fft, graphs, math	3400	x341
1827E	Bus Routes binary search, constructive algorithms, dfs and similar, greedy, trees	3400	x355
1693E	Outermost Maximums data structures, greedy	3400	x369
1710D	Recover the Tree constructive algorithms, trees	3400	x405
1482H	Exam data structures, string suffix structures, trees	3400	x422
1137F	Matches Are Not a Child's Play data structures, trees	3400	x456
1097E	Egor and an RPG game constructive algorithms, greedy	3400	x458
757G	Can Bash Save the Day? data structures, divide and conquer, graphs, trees	3400	x478
1630F	Making It Bipartite flows, graph matchings, graphs, number theory	3400	x489
1119F	Niyaz and Small Degrees data structures, dp, trees	3400	x647
843D	Dynamic Shortest Path graphs, shortest paths	3400	x750
1491H	Yuezheng Ling and Dynamic Tree data structures, trees	3400	x759
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	x64
865F	Egg Roulette bitmasks, brute force, divide and conquer, math, meet-in-the-middle	3300	x67
737F	Dirty plates constructive algorithms, math	3300	x69
1938D	Bánh Bò	3300	x77
771F	Bear and Isomorphic Points geometry, two pointers	3300	x78
901E	Cyclic Cipher fft, math	3300	x84
1666A	Admissible Map	3300	x99
1381E	Origami geometry, math, sortings	3300	x100
737E	Tanya is 5! graph matchings, graphs, greedy, schedules	3300	x116
1930H	Interactive Mex Tree constructive algorithms, dfs and similar, interactive, trees	3300	x117
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
865E	Hex Dyslexia bitmasks, brute force, dp, graphs	3300	x118
868G	El Toll Caves math	3300	x119
696F	...Dary! binary search, geometry, two pointers	3300	x119
1580F	Problems for Codeforces combinatorics, fft, math	3300	x130
865G	Flowers and Chocolate combinatorics, math, matrices	3300	x130
1530G	What a Reversal constructive algorithms	3300	x132
1209H	Moving Walkways data structures, greedy, math	3300	x135
1017H	The Films brute force	3300	x137
1361F	Johnny and New Toy data structures, implementation, math	3300	x142
1718F	Burenka, an Array and Queries data structures, math, number theory	3300	x145
1615G	Maximum Adjacent Pairs constructive algorithms, graph matchings	3300	x147
1886F	Diamond Theft data structures, greedy	3300	x158
725G	Messages on a Tree	3300	x161
1450H2	Multithreading (Hard Version) combinatorics, implementation, math	3300	x162
1284G	Seollal graphs	3300	x165
1804H	Code Lock bitmasks, dp	3300	x168
1329E	Dreamoon Loves AA binary search, greedy	3300	x169
1787H	Codeforces Scoreboard binary search, data structures, dp, geometry	3300	x197
855G	Harry Vs Voldemort dfs and similar, dp, graphs, trees	3300	x199
1870G	MEXanization data structures	3300	x201
1740H	MEX Tree Manipulation data structures, trees	3300	x201
1641E	Special Positions combinatorics, divide and conquer, fft, math	3300	x202
1392I	Kevin and Grid fft, graphs, math	3300	x202
1943E2	MEX Game 2 (Hard Version) binary search, greedy, two pointers	3300	x205
1060H	Sophisticated Device constructive algorithms	3300	x209
1500E	Subset Trick binary search, data structures	3300	x210
1876E	Ball-Stackable constructive algorithms, data structures, dp, trees	3300	x214
618G	Combining Slimes dp, math, matrices, probabilities	3300	x216
1750G	Doping combinatorics, dp, math	3300	x223
1188E	Problem from Red Panda combinatorics	3300	x224
1738H	Palindrome Addicts data structures, strings	3300	x227
1548D2	Gregor and the Odd Cows (Hard) brute force, geometry, math, number theory	3300	x237
607E	Cross Sum binary search, geometry	3300	x245
1054G	New Road Network constructive algorithms, greedy, math	3300	x254
1427G	One Billion Shades of Grey flows, graphs	3300	x256
1466H	Finding satisfactory solutions combinatorics, dp, graphs, greedy, math	3300	x257
1254E	Send Tree to Charlie combinatorics, dfs and similar, dsu, trees	3300	x259
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
1528F	AmShZ Farm combinatorics, fft, math	3300	x272
704E	Iron Man data structures, geometry, trees	3300	x272
1495F	Squares constructive algorithms, data structures, dp, graphs, trees	3300	x279
1726G	A Certain Magical Party combinatorics, data structures, greedy, sortings	3300	x282
1718D	Permutation for Burenka data structures, graph matchings, greedy, math, trees	3300	x286
1172E	Nauuo and ODT data structures	3300	x286
1322E	Median Mountain Range data structures	3300	x293
1396D	Rainbow Rectangles data structures, sortings, two pointers	3300	x295
1237H	Balanced Reversals constructive algorithms	3300	x302
1556G	Gates to Another World bitmasks, data structures, dsu, two pointers	3300	x304
1753E	N Machines binary search, brute force, greedy	3300	x307
1583H	Omkar and Tours data structures, divide and conquer, sortings, trees	3300	x312
1148G	Gold Experience constructive algorithms, graphs, math, number theory, probabilities	3300	x312
1552H	Guess the Perimeter binary search, interactive, number theory	3300	x316
1556H	DIY Tree graphs, greedy, math, probabilities	3300	x319
983D	Arkady and Rectangles data structures	3300	x320