Problemset - Codeforces

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IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2)
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Problems

#	Name
130B	Gnikool Ssalg *special problem, implementation, strings	1400	x540
128E	Birthday geometry, math	2900	x100
128D	Numbers constructive algorithms, implementation	2000	x1161
128C	Games with Rectangle combinatorics, dp	2000	x3004
128B	String brute force, constructive algorithms, hashing, implementation, string suffix structures, strings	2100	x2622
128A	Statues dfs and similar	1500	x3230
126E	Pills brute force, flows	2900	x89
126D	Fibonacci Sums dp, math	2300	x849
126C	E-reader Display constructive algorithms, greedy	2000	x747
126B	Password binary search, dp, hashing, string suffix structures, strings	1700	x20145
126A	Hot Bath binary search, brute force, math	1900	x1442
125E	MST Company binary search, graphs	2400	x1112
125D	Two progressions constructive algorithms, greedy	2200	x421
125C	Hobbits' Party constructive algorithms, greedy	1600	x939
125A	Measuring Lengths in Baden math	1400	x2761
124B	Permutations brute force, combinatorics, implementation	1400	x4049
123E	Maze dfs and similar, dp, probabilities, trees	2500	x732
123D	String string suffix structures	2300	x1238
123C	Brackets combinatorics, dp, greedy	2300	x622
123B	Squares math	1800	x1143
121E	Lucky Array data structures	2400	x1763
121D	Lucky Segments binary search, implementation, two pointers	2500	x281
121C	Lucky Permutation brute force, combinatorics, number theory	1900	x1293
121B	Lucky Transformation strings	1500	x2596
120J	Minimum Sum divide and conquer, geometry, sortings	1900	x949
120I	Luck is in Numbers greedy	2200	x308
120H	Brevity is Soul of Wit graph matchings	1800	x1429
120G	Boom implementation	1800	x691
120F	Spiders dp, greedy, trees	1400	x3690
120E	Put Knight! games, math	1400	x2768
120D	Three Sons brute force	1400	x1947
119E	Alternative Reality geometry	2400	x97
119D	String Transformation hashing, strings	2500	x514
119C	Education Reform dp	2000	x967
119B	Before Exam constructive algorithms, implementation, sortings	1900	x1083
118E	Bertown roads dfs and similar, graphs	2000	x6875
118D	Caesar's Legions dp	1700	x17853
118C	Fancy Number brute force, greedy, sortings, strings	1900	x2618
117E	Tree or not Tree data structures, divide and conquer, implementation, trees	2900	x356
117D	Not Quick Transformation divide and conquer, math	2500	x343
117C	Cycle dfs and similar, graphs	2000	x2684
117B	Very Interesting Game brute force, number theory	1800	x1628
115E	Linear Kingdom Races data structures, dp	2400	x1685
115D	Unambiguous Arithmetic Expression dp, expression parsing	2600	x409
115C	Plumber math	2200	x613
115B	Lawnmower greedy, sortings	1500	x2636
114B	PFAST Inc. bitmasks, brute force, graphs	1500	x3774
113E	Sleeping combinatorics, implementation, math	2700	x120
113D	Museum math, matrices, probabilities	2700	x691
113C	Double Happiness brute force, math, number theory	2200	x1251
113B	Petr# brute force, data structures, hashing, strings	2000	x2907
113A	Grammar Lessons implementation, strings	1600	x2313
111E	Petya and Rectangle	2900	x67
111D	Petya and Coloring combinatorics, dp	2300	x794
111C	Petya and Spiders bitmasks, dp, dsu	2100	x1405
111B	Petya and Divisors binary search, data structures, number theory	1900	x3739
111A	Petya and Inequiations greedy	1400	x4826
109E	Lucky Interval brute force, math	2700	x104
109D	Lucky Sorting constructive algorithms, sortings	2000	x822
109C	Lucky Tree dp, dsu, trees	1900	x3656
109B	Lucky Probability brute force, probabilities	1900	x1569
108B	Datatypes math, sortings	1400	x2495
107E	Darts geometry, probabilities	2700	x140
107D	Crime Management dp, graphs, matrices	2400	x434
107C	Arrangement bitmasks, dp	2400	x396
107B	Basketball Team combinatorics, dp, math, probabilities	1600	x3581
107A	Dorm Water Supply dfs and similar, graphs	1400	x5180
106E	Space Rescuers geometry, ternary search	2100	x887
106D	Treasure Island brute force, implementation	1700	x1372
106C	Buns dp	1700	x6129
105E	Lift and Throw brute force	2500	x193
105D	Entertaining Geodetics brute force, dsu, implementation	2700	x141
105C	Item World brute force, implementation, sortings	2200	x346
105B	Dark Assembly brute force, probabilities	1800	x824
105A	Transmigration implementation	1700	x1847
103E	Buying Sets flows, graph matchings	2900	x893
103D	Time to Raid Cowavans brute force, data structures, sortings	2100	x2152
103C	Russian Roulette constructive algorithms, greedy	1900	x969
103B	Cthulhu dfs and similar, dsu, graphs	1500	x9096
101E	Candies and Stones divide and conquer, dp	2500	x522
101D	Castle dp, greedy, probabilities, sortings, trees	2300	x705
101C	Vectors implementation, math	2000	x709
101B	Buses binary search, data structures, dp	1700	x2654
100J	Interval Coloring *special problem, greedy, math	2400	x65
100I	Rotation *special problem, geometry, math	1500	x359
100H	Battleship *special problem, dfs and similar, implementation	2100	x84
100G	Name the album *special problem, data structures, implementation	1800	x128
100F	Polynom *special problem, implementation	1800	x145
100E	Lamps in a Line *special problem, math	1600	x279
100D	World of Mouth *special problem, strings	1500	x312
100C	A+B *special problem, implementation	1400	x549
100B	Friendly Numbers *special problem, implementation	1500	x552
98E	Help Shrek and Donkey dp, games, math, probabilities	2700	x488
98D	Help Monks constructive algorithms	2500	x187
98C	Help Greg the Dwarf geometry, ternary search	2500	x313
98B	Help King implementation, probabilities, trees	2200	x132
98A	Help Victoria the Wise brute force, implementation	1700	x1219
97E	Leaders dfs and similar, dsu, graphs, trees	2200	x386
97D	Robot in Basement bitmasks, brute force, implementation	2700	x249
97C	Winning Strategy binary search, graphs, math, shortest paths	2400	x306