Problemset - Codeforces

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Educational Codeforces Round 165 (Rated for Div. 2)
43:11:46
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Problems

#	Name
869D	The Overdosing Ubiquity brute force, dfs and similar, graphs	2800	x235
1523H	Hopping Around the Array data structures, dp	3500	x234
178D3	Magic Squares	2100	x234
64E	Prime Segment *special problem, brute force, math, number theory	1800	x234
1286F	Harry The Potter brute force, constructive algorithms, dp, fft, implementation, math	3100	x233
715D	Create a Maze constructive algorithms	3100	x233
293D	Ksusha and Square geometry, math, probabilities, two pointers	2700	x233
1956F	Nene and the Passing Game constructive algorithms, data structures, dsu, graphs, sortings	3000	x231
1450G	Communism bitmasks, dp, trees	3500	x231
627F	Island Puzzle dfs and similar, dsu, graphs, trees	3400	x231
470C	Eval *special problem	1900	x231
661F	Primes in Interval *special problem	1900	x230
164D	Minimum Diameter binary search, brute force	3100	x229
97D	Robot in Basement bitmasks, brute force, implementation	2700	x229
1338E	JYPnation graphs	3500	x228
989E	A Trance of Nightfall dp, geometry, matrices, probabilities	2700	x228
370E	Summer Reading dp, greedy	2500	x228
1738H	Palindrome Addicts data structures, strings	3300	x227
1569F	Palindromic Hamiltonian Path brute force, dfs and similar, dp, graphs, hashing	3000	x227
1425I	Impressive Harvesting of The Orchard data structures	2800	x227
1270I	Xor on Figures constructive algorithms, fft, math	3500	x227
1116D2	Pattern of increasing blocks		x227
1115U2	Chessboard unitary *special problem	1600	x227
883L	Berland.Taxi data structures	2500	x227
406E	Hamming Triples implementation, math, two pointers	2800	x227
1223G	Wooden Raft binary search, math, number theory	3200	x226
914H	Ember and Storm's Tree Game combinatorics, dp, games, trees	3400	x226
178E2	The Beaver's Problem - 2	2000	x226
1951G	Clacking Balls combinatorics, math, probabilities	3100	x225
1830E	Bully Sort data structures, math	3500	x225
1083D	The Fair Nut's getting crazy data structures, implementation	3500	x225
475F	Meta-universe data structures	2900	x225
89D	Space mines geometry	2500	x225
1750G	Doping combinatorics, dp, math	3300	x224
1515I	Phoenix and Diamonds binary search, data structures, sortings	3400	x224
1188E	Problem from Red Panda combinatorics	3300	x224
1115G3	Palindrome checker oracle *special problem	1600	x224
952G	Puzzling Language constructive algorithms	2200	x224
497D	Gears brute force, geometry, math	2900	x224
1211D	Teams *special problem, binary search, greedy, math	2000	x223
1086F	Forest Fires math	3500	x223
162D	Remove digits *special problem	1900	x223
1949K	Make Triangle constructive algorithms, math		x222
720D	Slalom data structures, dp, sortings	3100	x222
661B	Seasons *special problem	1900	x222
1190E	Tokitsukaze and Explosion binary search, greedy	3100	x221
926F	Mobile Communications	2000	x221
648D	Собачки и миски data structures, greedy, sortings	1900	x221
435E	Special Graph	2500	x221
207A2	Beaver's Calculator 1.0 greedy	1800	x221
1830F	The Third Grace data structures, dp	3200	x219
1268E	Happy Cactus dp	3400	x219
1735F	Pebbles and Beads data structures, geometry	2900	x218
1368H2	Breadboard Capacity (hard version)	3500	x218
1346F	Dune II: Battle For Arrakis *special problem, data structures, greedy, math	2000	x218
815E	Karen and Neighborhood binary search, constructive algorithms, implementation	2900	x218
1578J	Just Kingdom brute force, data structures, dfs and similar	3100	x217
1431E	Chess Match *special problem	2000	x217
1098F	Ж-function string suffix structures, strings	3500	x217
309E	Sheep binary search, greedy	2900	x217
1876E	Ball-Stackable constructive algorithms, data structures, dp, trees	3300	x216
774B	Significant Cups *special problem, binary search, data structures, two pointers	2100	x216
618G	Combining Slimes dp, math, matrices, probabilities	3300	x216
335E	Counting Skyscrapers dp, math, probabilities	2800	x216
331E2	Deja Vu constructive algorithms, dp	3100	x216
82E	Corridor geometry	2600	x216
62E	World Evil dp, flows	2700	x216
1043G	Speckled Band data structures, divide and conquer, hashing, string suffix structures, strings	3500	x215
819D	Mister B and Astronomers number theory	2900	x215
533D	Landmarks data structures, dp	3000	x215
1957F2	Frequency Mismatch (Hard Version) binary search, data structures, dfs and similar, hashing, probabilities, trees		x214
1532F	Prefixes and Suffixes *special problem, strings		x214
1439E	Cheat and Win bitmasks, data structures, games, trees	3500	x214
1103E	Radix sum fft, math, number theory	3400	x214
1089B	Bimatching graphs	3200	x214
528E	Triangles 3000 geometry, sortings	3100	x214
1815F	OH NO1 (-2-3-4) constructive algorithms, graphs, math	3500	x213
1781G	Diverse Coloring constructive algorithms, trees	3200	x213
420E	Playing the ball geometry	2600	x213
1687E	Become Big For Me combinatorics, constructive algorithms, greedy, math, number theory	3500	x212
1194G	Another Meme Problem dp	2700	x212
162H	Alternating case *special problem	1800	x212
1515H	Phoenix and Bits bitmasks, brute force, data structures, sortings	3500	x211
1098E	Fedya the Potter binary search, implementation, math, number theory	3400	x211
575C	Party bitmasks, brute force, graph matchings	2700	x211
1500E	Subset Trick binary search, data structures	3300	x210
1357B2	"Is the number divisible by 3?" oracle		x210
1357B1	"Is the bit string balanced?" oracle		x210
1060H	Sophisticated Device constructive algorithms	3300	x210
833E	Caramel Clouds data structures, dp, sortings	3400	x210
392D	Three Arrays data structures		x210
1943E2	MEX Game 2 (Hard Version) binary search, greedy, two pointers	3300	x209
1010F	Tree fft, graphs, trees	3400	x209
1939B	Evidence Board *special problem, constructive algorithms, dfs and similar, graphs, trees		x208
1533F	Binary String Partition *special problem, binary search, greedy		x208
592E	BCPC binary search, geometry, two pointers	2700	x208
243D	Cubes data structures, dp, geometry, two pointers	2700	x208
1928F	Digital Patterns combinatorics, data structures, implementation, math	2900	x207
398C	Tree and Array constructive algorithms		x207
1267D	DevOps Best Practices constructive algorithms	2800	x206