Problemset - Codeforces

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Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round)
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Problems

#	Name
188F	Binary Notation *special problem, implementation	1400	x298
188E	HQ9+ *special problem, implementation	1400	x498
188D	Asterisks *special problem, implementation	1100	x680
188C	LCM *special problem, implementation, math	1400	x451
188B	A + Reverse B *special problem, implementation	1300	x731
188A	Hexagonal Numbers *special problem	1100	x775
187E	Heaven Tour data structures, greedy	2900	x100
187D	BRT Contract data structures	2800	x534
187C	Weak Memory dfs and similar, dsu	2000	x1341
187B	AlgoRace dp, shortest paths	1800	x1974
187A	Permutations greedy	1500	x2791
186B	Growing Mushrooms greedy, sortings	1200	x5573
186A	Comparing Strings implementation, strings	1100	x16855
185E	Soap Time! - 2 binary search, data structures	3000	x105
185D	Visit of the Great math, number theory	2600	x427
185C	Clever Fat Rat dp	2500	x136
185B	Mushroom Scientists math, ternary search	1800	x1635
185A	Plant math	1300	x5910
183E	Candy Shop greedy	2900	x135
183D	T-shirt dp, greedy, probabilities	2700	x402
183C	Cyclic Coloring dfs and similar	2200	x618
183B	Zoo brute force, geometry	1700	x697
183A	Headquarters constructive algorithms, math	1700	x547
182E	Wooden Fence dp	1800	x1454
182D	Common Divisors brute force, hashing, implementation, math, strings	1400	x8054
182C	Optimal Sum data structures, greedy	2000	x723
182B	Vasya's Calendar implementation	1000	x6928
182A	Battlefield geometry, graphs, implementation, shortest paths	2200	x281
181B	Number of Triplets binary search, brute force	1300	x3010
181A	Series of Crimes brute force, geometry, implementation	800	x7051
180F	Mathematical Analysis Rocks! constructive algorithms, implementation, math	1200	x2510
180E	Cubes binary search, dp, two pointers	1800	x1764
180D	Name greedy, strings	1900	x722
180C	Letter dp	1400	x7345
180B	Divisibility Rules math, number theory	2300	x344
180A	Defragmentation implementation	1800	x536
178F3	Representative Sampling	2500	x428
178F2	Representative Sampling dp, sortings, strings	2200	x346
178F1	Representative Sampling	1800	x402
178E3	The Beaver's Problem - 2	2300	x201
178E2	The Beaver's Problem - 2	2000	x230
178E1	The Beaver's Problem - 2	1900	x289
178D3	Magic Squares	2100	x246
178D2	Magic Squares	1900	x269
178D1	Magic Squares	1500	x637
178C3	Smart Beaver and Resolving Collisions	2000	x300
178C2	Smart Beaver and Resolving Collisions	1900	x292
178C1	Smart Beaver and Resolving Collisions	1600	x475
178B3	Greedy Merchants	1800	x1195
178B2	Greedy Merchants	1600	x679
178B1	Greedy Merchants	1600	x761
178A3	Educational Game greedy	1100	x1437
178A2	Educational Game greedy	1000	x1624
178A1	Educational Game	1000	x1602
177G2	Fibonacci Strings matrices, strings	2600	x187
177G1	Fibonacci Strings strings	2400	x179
177F2	Script Generation	2300	x207
177F1	Script Generation	1800	x302
177E2	Space Voyage binary search	1900	x429
177E1	Space Voyage binary search	1700	x612
177D2	Encrypting Messages data structures	1500	x1948
177D1	Encrypting Messages brute force	1200	x2157
177C2	Party brute force, dfs and similar, dsu, graphs	1500	x2562
177C1	Party dfs and similar, dsu, graphs	1500	x2554
177B2	Rectangular Game number theory	1200	x2992
177B1	Rectangular Game number theory	1000	x4132
177A2	Good Matrix Elements implementation	800	x7273
177A1	Good Matrix Elements implementation	800	x8621
176E	Archaeology data structures, dfs and similar, trees	3100	x1149
176D	Hyper String dp	2500	x324
176C	Playing with Superglue combinatorics, constructive algorithms	2000	x479
176B	Word Cut dp	1700	x1814
176A	Trading Business greedy, sortings	1200	x1466
175F	Gnomes of Might and Magic data structures, graphs, implementation, shortest paths	3000	x66
175E	Power Defence brute force, dp, geometry, greedy	2600	x264
175D	Plane of Tanks: Duel brute force, dp, math, probabilities	2400	x297
175C	Geometry Horse greedy, implementation, sortings, two pointers	1600	x1312
175B	Plane of Tanks: Pro implementation	1400	x1420
175A	Robot Bicorn Attack brute force, implementation	1400	x2383
174C	Range Increments data structures, greedy	1800	x1090
174B	File List dp, greedy, implementation	1400	x2238
174A	Problem About Equation math	1100	x2804
173E	Camping Groups data structures, sortings	2600	x556
173D	Deputies constructive algorithms, graphs, greedy, implementation	2500	x248
173C	Spiral Maximum brute force, dp	1900	x978
173B	Chamber of Secrets dfs and similar, shortest paths	1800	x3095
173A	Rock-Paper-Scissors implementation, math	1300	x2292
172E	BHTML+BCSS *special problem, dfs and similar, expression parsing	2200	x271
172D	Calendar Reform *special problem, number theory	1500	x1395
172C	Bus *special problem, implementation, sortings	1500	x1139
172B	Pseudorandom Sequence Period *special problem, implementation, number theory	1200	x2775
172A	Phone Code *special problem, brute force, implementation	800	x6111
171H	A polyline *special problem, implementation	1700	x279
171G	Mysterious numbers - 2 *special problem	1600	x923
171F	ucyhf *special problem, brute force, implementation, number theory	1600	x1271
171E	MYSTERIOUS LANGUAGE *special problem	2000	x1453
171D	Broken checker *special problem, brute force	1300	x2568
171C	A Piece of Cake *special problem, implementation	2000	x1081
171B	Star *special problem, combinatorics	1300	x4047
171A	Mysterious numbers - 1 *special problem, constructive algorithms	1200	x4444