Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 987 (Div. 2)
13:51:18
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
120I	Luck is in Numbers greedy	2200	x304
120H	Brevity is Soul of Wit graph matchings	1800	x1413
120G	Boom implementation	1800	x690
120F	Spiders dp, greedy, trees	1400	x3624
120E	Put Knight! games, math	1400	x2740
120D	Three Sons brute force	1400	x1935
120C	Winnie-the-Pooh and honey implementation, math	1100	x3679
120B	Quiz League implementation	1100	x3438
120A	Elevator brute force, implementation, math	1000	x4839
119E	Alternative Reality geometry	2400	x95
119D	String Transformation hashing, strings	2500	x500
119C	Education Reform dp	2000	x927
119B	Before Exam constructive algorithms, implementation, sortings	1900	x1079
119A	Epic Game implementation	800	x27504
118E	Bertown roads dfs and similar, graphs	2000	x6722
118D	Caesar's Legions dp	1700	x17568
118C	Fancy Number brute force, greedy, sortings, strings	1900	x2600
118B	Present from Lena constructive algorithms, implementation	1000	x30196
118A	String Task implementation, strings	1000	x194656
117E	Tree or not Tree data structures, divide and conquer, implementation, trees	2900	x349
117D	Not Quick Transformation divide and conquer, math	2500	x340
117C	Cycle dfs and similar, graphs	2000	x2647
117B	Very Interesting Game brute force, number theory	1800	x1612
117A	Elevator implementation, math	1300	x2024
116B	Little Pigs and Wolves greedy, implementation	1100	x13784
116A	Tram implementation	800	x143898
115E	Linear Kingdom Races data structures, dp	2400	x1594
115D	Unambiguous Arithmetic Expression dp, expression parsing	2600	x399
115C	Plumber math	2200	x600
115B	Lawnmower greedy, sortings	1500	x2615
115A	Party dfs and similar, graphs, trees	900	x34906
114B	PFAST Inc. bitmasks, brute force, graphs	1500	x3714
114A	Cifera math	1000	x14188
113E	Sleeping combinatorics, implementation, math	2700	x119
113D	Museum math, matrices, probabilities	2700	x686
113C	Double Happiness brute force, math, number theory	2200	x1240
113B	Petr# brute force, data structures, hashing, strings	2000	x2831
113A	Grammar Lessons implementation, strings	1600	x2304
112B	Petya and Square implementation, math	1200	x4172
112A	Petya and Strings implementation, strings	800	x228163
111E	Petya and Rectangle	2900	x66
111D	Petya and Coloring combinatorics, dp	2300	x770
111C	Petya and Spiders bitmasks, dp, dsu	2100	x1384
111B	Petya and Divisors binary search, data structures, number theory	1900	x3694
111A	Petya and Inequiations greedy	1400	x4793
110B	Lucky String constructive algorithms, strings	1100	x10242
110A	Nearly Lucky Number implementation	800	x157453
109E	Lucky Interval brute force, math	2700	x102
109D	Lucky Sorting constructive algorithms, sortings	2000	x813
109C	Lucky Tree dp, dsu, trees	1900	x3596
109B	Lucky Probability brute force, probabilities	1900	x1556
109A	Lucky Sum of Digits brute force, implementation	1000	x17739
108B	Datatypes math, sortings	1400	x2469
108A	Palindromic Times implementation, strings	1000	x9394
107E	Darts geometry, probabilities	2700	x138
107D	Crime Management dp, graphs, matrices	2400	x425
107C	Arrangement bitmasks, dp	2400	x375
107B	Basketball Team combinatorics, dp, math, probabilities	1600	x3503
107A	Dorm Water Supply dfs and similar, graphs	1400	x5118
106E	Space Rescuers geometry, ternary search	2100	x873
106D	Treasure Island brute force, implementation	1700	x1356
106C	Buns dp	1700	x6018
106B	Choosing Laptop brute force, implementation	1000	x6119
106A	Card Game implementation	1000	x7631
105E	Lift and Throw brute force	2500	x192
105D	Entertaining Geodetics brute force, dsu, implementation	2700	x139
105C	Item World brute force, implementation, sortings	2200	x344
105B	Dark Assembly brute force, probabilities	1800	x819
105A	Transmigration implementation	1700	x1844
104A	Blackjack implementation	800	x15460
103E	Buying Sets flows, graph matchings	2900	x882
103D	Time to Raid Cowavans brute force, data structures, sortings	2100	x2128
103C	Russian Roulette constructive algorithms, greedy	1900	x960
103B	Cthulhu dfs and similar, dsu, graphs	1500	x8972
103A	Testing Pants for Sadness greedy, implementation, math	1100	x6009
102B	Sum of Digits implementation	1000	x27050
102A	Clothes brute force	1200	x3024
101E	Candies and Stones divide and conquer, dp	2500	x517
101D	Castle dp, greedy, probabilities, sortings, trees	2300	x689
101C	Vectors implementation, math	2000	x703
101B	Buses binary search, data structures, dp	1700	x2590
101A	Homework greedy	1200	x3870
100J	Interval Coloring *special problem, greedy, math	2400	x62
100I	Rotation *special problem, geometry, math	1500	x351
100H	Battleship *special problem, dfs and similar, implementation	2100	x79
100G	Name the album *special problem, data structures, implementation	1800	x124
100F	Polynom *special problem, implementation	1800	x135
100E	Lamps in a Line *special problem, math	1600	x273
100D	World of Mouth *special problem, strings	1500	x305
100C	A+B *special problem, implementation	1400	x536
100B	Friendly Numbers *special problem, implementation	1500	x545
100A	Carpeting the Room *special problem, implementation	1100	x930
99B	Help Chef Gerasim implementation, sortings	1300	x2980
99A	Help Far Away Kingdom strings	800	x6717
98E	Help Shrek and Donkey dp, games, math, probabilities	2700	x479
98D	Help Monks constructive algorithms	2500	x185
98C	Help Greg the Dwarf geometry, ternary search	2500	x310
98B	Help King implementation, probabilities, trees	2200	x128
98A	Help Victoria the Wise brute force, implementation	1700	x1216
97E	Leaders dfs and similar, dsu, graphs, trees	2200	x383