Problemset - Codeforces

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Codeforces Round (Div. 2)
6 days

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Problems

#	Name
122B	Lucky Substring brute force, implementation	1000	x12129
122A	Lucky Division brute force, number theory	1000	x118522
121E	Lucky Array data structures	2400	x1661
121D	Lucky Segments binary search, implementation, two pointers	2500	x273
121C	Lucky Permutation brute force, combinatorics, number theory	1900	x1273
121B	Lucky Transformation strings	1500	x2538
121A	Lucky Sum implementation	1100	x8925
120J	Minimum Sum divide and conquer, geometry, sortings	1900	x910
120I	Luck is in Numbers greedy	2200	x303
120H	Brevity is Soul of Wit graph matchings	1800	x1361
120G	Boom implementation	1800	x683
120F	Spiders dp, greedy, trees	1400	x3529
120E	Put Knight! games, math	1400	x2659
120D	Three Sons brute force	1400	x1907
120C	Winnie-the-Pooh and honey implementation, math	1100	x3607
120B	Quiz League implementation	1100	x3377
120A	Elevator brute force, implementation, math	1000	x4517
119E	Alternative Reality geometry	2400	x94
119D	String Transformation hashing, strings	2500	x479
119C	Education Reform dp	2000	x874
119B	Before Exam constructive algorithms, implementation, sortings	1900	x1069
119A	Epic Game implementation	800	x27074
118E	Bertown roads dfs and similar, graphs	2000	x6286
118D	Caesar's Legions dp	1700	x16947
118C	Fancy Number brute force, greedy, sortings, strings	1900	x2537
118B	Present from Lena constructive algorithms, implementation	1000	x29021
118A	String Task implementation, strings	1000	x184887
117E	Tree or not Tree data structures, divide and conquer, implementation, trees	2900	x317
117D	Not Quick Transformation divide and conquer, math	2500	x331
117C	Cycle dfs and similar, graphs	2000	x2568
117B	Very Interesting Game brute force, number theory	1800	x1542
117A	Elevator implementation, math	1300	x1982
116B	Little Pigs and Wolves greedy, implementation	1100	x13530
116A	Tram implementation	800	x135103
115E	Linear Kingdom Races data structures, dp	2400	x1397
115D	Unambiguous Arithmetic Expression dp, expression parsing	2600	x379
115C	Plumber math	2200	x589
115B	Lawnmower greedy, sortings	1500	x2443
115A	Party dfs and similar, graphs, trees	900	x33364
114B	PFAST Inc. bitmasks, brute force, graphs	1500	x3557
114A	Cifera math	1000	x13941
113E	Sleeping combinatorics, implementation, math	2700	x117
113D	Museum math, matrices, probabilities	2700	x656
113C	Double Happiness brute force, math, number theory	2200	x1207
113B	Petr# brute force, data structures, hashing, strings	2000	x2756
113A	Grammar Lessons implementation, strings	1600	x2247
112B	Petya and Square implementation, math	1200	x4093
112A	Petya and Strings implementation, strings	800	x214166
111E	Petya and Rectangle	2900	x65
111D	Petya and Coloring combinatorics, dp	2300	x725
111C	Petya and Spiders bitmasks, dp, dsu	2100	x1309
111B	Petya and Divisors binary search, data structures, number theory	1900	x3576
111A	Petya and Inequiations greedy	1400	x4669
110B	Lucky String constructive algorithms, strings	1100	x10046
110A	Nearly Lucky Number implementation	800	x146344
109E	Lucky Interval brute force, math	2700	x100
109D	Lucky Sorting constructive algorithms, sortings	2000	x617
109C	Lucky Tree dp, dsu, trees	1900	x3219
109B	Lucky Probability brute force, probabilities	1900	x1337
109A	Lucky Sum of Digits brute force, implementation	1000	x16901
108B	Datatypes math, sortings	1400	x2430
108A	Palindromic Times implementation, strings	1000	x9253
107E	Darts geometry, probabilities	2700	x128
107D	Crime Management dp, graphs, matrices	2400	x402
107C	Arrangement bitmasks, dp	2400	x363
107B	Basketball Team combinatorics, dp, math, probabilities	1600	x3335
107A	Dorm Water Supply dfs and similar, graphs	1400	x4993
106E	Space Rescuers geometry, ternary search	2100	x842
106D	Treasure Island brute force, implementation	1700	x1297
106C	Buns dp	1700	x5788
106B	Choosing Laptop brute force, implementation	1000	x5986
106A	Card Game implementation	1000	x7491
105E	Lift and Throw brute force	2500	x183
105D	Entertaining Geodetics brute force, dsu, implementation	2700	x136
105C	Item World brute force, implementation, sortings	2200	x326
105B	Dark Assembly brute force, probabilities	1800	x803
105A	Transmigration implementation	1700	x1818
104A	Blackjack implementation	800	x15055
103E	Buying Sets flows, graph matchings	2900	x834
103D	Time to Raid Cowavans brute force, data structures, sortings	2100	x2004
103C	Russian Roulette constructive algorithms, greedy	1900	x939
103B	Cthulhu dfs and similar, dsu, graphs	1500	x8611
103A	Testing Pants for Sadness greedy, implementation, math	1100	x5906
102B	Sum of Digits implementation	1000	x25202
102A	Clothes brute force	1200	x2947
101E	Candies and Stones divide and conquer, dp	2500	x480
101D	Castle dp, greedy, probabilities, sortings, trees	2300	x672
101C	Vectors implementation, math	2000	x688
101B	Buses binary search, data structures, dp	1700	x2519
101A	Homework greedy	1200	x3739
100J	Interval Coloring *special problem, greedy, math	2400	x61
100I	Rotation *special problem, geometry, math	1500	x342
100H	Battleship *special problem, dfs and similar, implementation	2100	x75
100G	Name the album *special problem, data structures, implementation	1800	x110
100F	Polynom *special problem, implementation	1800	x133
100E	Lamps in a Line *special problem, math	1600	x268
100D	World of Mouth *special problem, strings	1500	x298
100C	A+B *special problem, implementation	1400	x519
100B	Friendly Numbers *special problem, implementation	1500	x537
100A	Carpeting the Room *special problem, implementation	1100	x897