Problemset - Codeforces

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Codeforces Round 968 (Div. 2)
29:29:42
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Problems

#	Name
291C	Network Mask *special problem, bitmasks, brute force, implementation	1600	x1672
290D	Orange *special problem, implementation	1400	x1792
290C	WTF? *special problem, graph matchings, implementation, trees	1700	x1532
290B	QR code *special problem, implementation	1500	x2423
290A	Mysterious strings *special problem, implementation	1400	x2982
289B	Polo the Penguin and Matrix brute force, dp, implementation, sortings, ternary search	1400	x17125
288C	Polo the Penguin and XOR operation implementation, math	1700	x2272
288B	Polo the Penguin and Houses combinatorics	1500	x2902
287B	Pipeline binary search, math	1700	x9478
286A	Lucky Permutation constructive algorithms, math	1400	x3147
284A	Cows and Primitive Roots implementation, math, number theory	1400	x6530
283B	Cow Program dfs and similar, dp, graphs	1700	x3640
283A	Cows and Sequence constructive algorithms, data structures, implementation	1600	x6535
282C	XOR and OR constructive algorithms, implementation, math	1500	x9332
282B	Painting Eggs greedy, math	1500	x12835
281B	Nearest Fraction brute force, implementation, two pointers	1700	x2973
280B	Maximum Xor Secondary data structures, implementation, two pointers	1800	x4507
279C	Ladder dp, implementation, two pointers	1700	x8189
279B	Books binary search, brute force, implementation, two pointers	1400	x51127
279A	Point on Spiral brute force, geometry, implementation	1400	x5563
278B	New Problem brute force, strings	1500	x3441
277A	Learning Languages dfs and similar, dsu	1400	x18652
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x13576
276C	Little Girl and Maximum Sum data structures, greedy, implementation, sortings	1500	x25660
275B	Convex Shape constructive algorithms, implementation	1700	x2814
274B	Zero Tree dfs and similar, dp, greedy, trees	1800	x4981
274A	k-Multiple Free Set binary search, greedy, sortings	1500	x9986
272D	Dima and Two Sequences combinatorics, math, sortings	1600	x2611
272C	Dima and Staircase data structures, implementation	1500	x6759
272B	Dima and Sequence implementation, math	1400	x3995
271D	Good Substrings data structures, strings	1800	x10972
271C	Secret constructive algorithms, implementation	1500	x2930
270B	Multithreading data structures, greedy, implementation	1400	x4114
269B	Greenhouse Effect dp	1700	x6253
269A	Magical Boxes greedy, math	1600	x3513
268C	Beautiful Sets of Points constructive algorithms, implementation	1500	x13574
264B	Good Sequences dp, number theory	1500	x10020
263D	Cycle in Graph dfs and similar, graphs	1800	x3569
261A	Maxim and Discounts greedy, sortings	1400	x5141
260C	Balls and Boxes constructive algorithms, greedy, implementation	1700	x2950
260B	Ancient Prophesy brute force, implementation, strings	1600	x3791
260A	Adding Digits implementation, math	1400	x14483
257C	View Angle brute force, geometry, math	1800	x4281
255D	Mr. Bender and Square binary search, implementation, math	1800	x1959
255C	Almost Arithmetical Progression brute force, dp	1500	x4684
254C	Anagram greedy, strings	1800	x1489
254B	Jury Size brute force, implementation	1500	x2139
253C	Text Editor data structures, dfs and similar, graphs, greedy, shortest paths	1600	x2578
253B	Physics Practical binary search, dp, sortings, two pointers	1400	x10569
252B	Unsorting Array brute force, sortings	1800	x1706
251B	Playing with Permutations implementation, math	1800	x1262
250C	Movie Critics greedy	1600	x1905
250B	Restoring IPv6 implementation, strings	1500	x1970
248B	Chilly Willy math, number theory	1400	x5277
246D	Colorful Graph brute force, dfs and similar, graphs	1600	x9361
246C	Beauty Pageant brute force, constructive algorithms, greedy	1600	x2615
245H	Queries for Number of Palindromes dp, hashing, strings	1800	x6447
245E	Mishap in Club greedy, implementation	1400	x3259
245D	Restoring Table constructive algorithms, greedy	1500	x2278
245C	Game with Coins greedy	1700	x1539
244B	Undoubtedly Lucky Numbers bitmasks, brute force, dfs and similar	1600	x4443
243A	The Brand New Function bitmasks	1600	x3876
242C	King's Path dfs and similar, graphs, hashing, shortest paths	1800	x8432
239B	Easy Tape Programming brute force, implementation	1500	x1366
238B	Boring Partition constructive algorithms	1800	x1283
237C	Primes on Interval binary search, number theory, two pointers	1600	x5673
237B	Young Table implementation, sortings	1500	x2227
235A	LCM Challenge number theory	1600	x17472
234G	Practice constructive algorithms, divide and conquer, implementation	1600	x1467
234F	Fence dp	1800	x1728
234E	Champions' League implementation	1600	x997
234D	Cinema implementation	1600	x1526
233B	Non-square Equation binary search, brute force, math	1400	x7417
232A	Cycles binary search, constructive algorithms, graphs, greedy	1600	x2502
231D	Magic Box brute force, geometry	1600	x4061
231C	To Add or Not to Add binary search, sortings, two pointers	1600	x8550
231B	Magic, Wizardry and Wonders constructive algorithms, greedy	1500	x3589
229B	Planets binary search, data structures, graphs, shortest paths	1700	x4608
229A	Shifts brute force, two pointers	1500	x3489
228B	Two Tables brute force, implementation	1400	x3456
226A	Flying Saucer Segments math	1400	x3957
225C	Barcode dp, matrices	1700	x9017
225B	Well-known Numbers binary search, greedy, number theory	1600	x3137
224B	Array bitmasks, implementation, two pointers	1500	x7281
223A	Bracket Sequence data structures, expression parsing, implementation	1700	x2511
222C	Reducing Fractions implementation, math, number theory, sortings	1800	x2133
220B	Little Elephant and Array constructive algorithms, data structures	1800	x9938
219D	Choosing Capital for Treeland dfs and similar, dp, graphs, trees	1700	x9209
219C	Color Stripe brute force, dp, greedy	1600	x6624
219B	Special Offer! Super Price 999 Bourles! implementation	1400	x5787
216D	Spider's Web binary search, sortings, two pointers	1700	x1345
216C	Hiring Staff greedy	1800	x1832
216B	Forming Teams dfs and similar, implementation	1700	x6288
214B	Hometask brute force, constructive algorithms, greedy, math	1600	x4946
213A	Game dfs and similar, greedy	1700	x1714
212E	IT Restaurants dfs and similar, dp, trees	1500	x1713
209A	Multicolored Marbles dp, math	1600	x2304
207D9	The Beaver's Problem - 3	1800	x84
207D7	The Beaver's Problem - 3	1600	x97
207D5	The Beaver's Problem - 3	1600	x138