Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
01:05:45
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Problems

#	Name
261C	Maxim and Matrix constructive algorithms, dp, math	2000	x771
261B	Maxim and Restaurant dp, math, probabilities	1900	x1402
260D	Black and White Tree constructive algorithms, dsu, graphs, greedy, trees	2100	x1535
258C	Little Elephant and LCM binary search, combinatorics, dp, math	2000	x1784
258B	Little Elephant and Elections brute force, combinatorics, dp	1900	x1446
257D	Sum greedy, math	1900	x1569
254E	Dormitory dp, implementation	2100	x669
253D	Table with Letters - 2 brute force, two pointers	2000	x830
251C	Number Transformation dp, greedy, number theory	2000	x1025
250E	Mad Joe brute force	2000	x465
250D	Building Bridge geometry, ternary search, two pointers	1900	x889
248C	Robo-Footballer binary search, geometry	2000	x844
245F	Log Stream Analysis binary search, brute force, implementation, strings	2000	x875
243B	Hydra graphs, sortings	2000	x1222
242E	XOR on Segment bitmasks, data structures	2000	x9048
242D	Dispute dfs and similar, graphs, greedy	2100	x1865
241G	Challenging Balloons constructive algorithms	1900	x545
241C	Mirror Box geometry, implementation	2000	x511
238C	World Eater Brothers dfs and similar, dp, greedy, trees	2100	x1229
237E	Build String flows, graphs	2000	x1700
237D	T-decomposition dfs and similar, graphs, greedy, trees	2000	x561
235B	Let's Play Osu! dp, math, probabilities	2000	x3488
234H	Merging Two Decks constructive algorithms, greedy	2000	x563
232B	Table bitmasks, combinatorics, dp, math	1900	x1428
231E	Cactus data structures, dfs and similar, dp, graphs, trees	2100	x1834
229D	Towers dp, greedy, two pointers	2100	x2214
229C	Triangles combinatorics, graphs, math	1900	x1614
228E	The Road to Berland is Paved With Good Intentions 2-sat, dfs and similar, dsu, graphs	1900	x2423
228D	Zigzag data structures	2100	x381
228C	Fractal Detector dp, hashing	2000	x453
226D	The table constructive algorithms, greedy	2100	x958
226B	Naughty Stone Piles greedy	1900	x1551
225E	Unsolvable math, number theory	2100	x799
223C	Partial Sums combinatorics, math, number theory	1900	x1550
223B	Two Strings data structures, dp, strings	1900	x1780
222E	Decoding Genome dp, matrices	1900	x2749
222D	Olympiad binary search, greedy, sortings, two pointers	1900	x2157
220C	Little Elephant and Shifts data structures	2100	x935
217B	Blackboard Fibonacci brute force, math	2100	x889
216E	Martian Luck math, number theory	2000	x578
215E	Periodical Numbers combinatorics, dp, number theory	2100	x551
215D	Hot Days greedy	1900	x1593
215C	Crosses brute force, implementation	2100	x665
213C	Relay Race dp	2000	x2835
213B	Numbers combinatorics, dp	1900	x1745
212C	Cowboys combinatorics, dp, math	2100	x384
209B	Pixels constructive algorithms, math	2100	x372
208E	Blood Cousins binary search, data structures, dfs and similar, trees	2100	x6583
208C	Police Station dp, graphs, shortest paths	1900	x1837
208B	Solitaire dfs and similar, dp	1900	x1355
207D6	The Beaver's Problem - 3	2100	x81
207D4	The Beaver's Problem - 3	2100	x150
207D3	The Beaver's Problem - 3	2000	x136
207D2	The Beaver's Problem - 3	2000	x106
207D10	The Beaver's Problem - 3	2100	x82
207C1	Game with Two Trees	2100	x107
207B2	Military Trainings	1900	x181
207A3	Beaver's Calculator 1.0 greedy	2000	x213
204C	Little Elephant and Furik and Rubik math, probabilities	2000	x1098
201C	Fragile Bridges dp	2000	x1348
199B	Special Olympics geometry	1900	x799
196B	Infinite Maze dfs and similar, graphs	2000	x2205
195E	Building Forest data structures, dsu, graphs	2000	x700
195D	Analyzing Polyline geometry, math, sortings	1900	x1034
193B	Xor brute force	2000	x1009
191C	Fools and Roads data structures, dfs and similar, trees	1900	x7147
190E	Counter Attack data structures, dsu, graphs, hashing, sortings	2100	x1518
190D	Non-Secret Cypher two pointers	1900	x2285
187C	Weak Memory dfs and similar, dsu	2000	x1331
182C	Optimal Sum data structures, greedy	2000	x722
180D	Name greedy, strings	1900	x722
178E2	The Beaver's Problem - 2	2000	x230
178E1	The Beaver's Problem - 2	1900	x289
178D3	Magic Squares	2100	x245
178D2	Magic Squares	1900	x268
178C3	Smart Beaver and Resolving Collisions	2000	x300
178C2	Smart Beaver and Resolving Collisions	1900	x292
177E2	Space Voyage binary search	1900	x425
176C	Playing with Superglue combinatorics, constructive algorithms	2000	x476
173C	Spiral Maximum brute force, dp	1900	x975
171E	MYSTERIOUS LANGUAGE *special problem	2000	x1446
171C	A Piece of Cake *special problem, implementation	2000	x1076
166B	Polygons geometry, sortings	2100	x2392
165D	Beard Graph data structures, dsu, trees	2100	x1634
164B	Ancient Berland Hieroglyphs two pointers	2000	x453
163C	Conveyor sortings, two pointers	2100	x540
163B	Lemmings binary search	2000	x1058
162I	Truncatable primes *special problem	2000	x77
162G	Non-decimal sum *special problem	2000	x63
162D	Remove digits *special problem	1900	x228
158E	Phone Talks *special problem, dp, sortings	1900	x1460
156C	Cipher combinatorics, dp	2000	x2387
153E	Euclidean Distance *special problem	2100	x79
153D	Date Change *special problem	2000	x82
149D	Coloring Brackets dp	1900	x3791
148E	Porcelain dp	1900	x3993
145C	Lucky Subsequence combinatorics, dp, math	2100	x1906
144D	Missile Silos data structures, dfs and similar, graphs, shortest paths	1900	x3945
138B	Digits Permutations greedy	1900	x1027
137E	Last Chance data structures, implementation, strings	2000	x1214